What is Power Quality?
•
8 likes•1,265 views
Power disruptions can cost businesses hundreds of thousands or millions of dollars. Devices that correct or eliminate power quality issues like sags, swells, and transients are important to reduce costs. Power quality issues are caused by events on the utility grid or within a facility. Proper protection devices and backup power sources can help mitigate these issues and improve equipment performance. A study estimated that power interruptions cost the US economy $80 billion annually, with most of the costs borne by commercial and industrial sectors due to downtime of electronic equipment.
Report
Share
Report
Share
![[object Object]](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
Recommended
Telliformer Presentation - Wide
The document discusses Telliformer SmartGrid Solutions, which adds intelligence and communications capabilities to existing utility systems through advanced monitoring devices and an analytics platform. This helps utilities gain visibility into their entire grid to improve efficiency, reduce costs, and increase reliability and safety. Some key benefits include optimizing capital, lowering maintenance costs, decreasing losses from theft and technical issues, and accelerating outage recovery. The solution monitors various power quality metrics and parameters to help utilities better manage their grid.
A Consideration of Medium Voltage Substation Primary Applications
This document discusses considerations for choosing between medium voltage fused switches and circuit breakers in substation primary applications. It notes that fused switches have a lower capital cost and footprint but less customizable protection and higher arc flash energy, while circuit breakers have a higher capital cost but allow for more advanced protection schemes, automation, higher amperage handling, and better coordination. Specific applications like virtual mains, primary loop systems, and secondary selective systems are reviewed in terms of which primary device is better suited.
Upgrading gen protect and grounding
This document discusses upgrading generator protection systems using digital technology. It provides an overview of generator fundamentals and industry standards for protection. Key reasons to upgrade include improved sensitivity to detect faults, adding new protection functions, and using digital relays. Specific protection functions that can be upgraded include negative sequence, field ground fault detection, dual-level loss of field, overexcitation, inadvertent energizing, VT fuse monitoring, and sequential tripping. Digital relays provide benefits like oscillographic monitoring for fault analysis. Special applications like generator breaker failure and over/under frequency protection are also reviewed.
IRJET- Detection and Measurement of Power Quality Parameter
This document summarizes a research paper that presents a low-cost hardware system to detect and measure common power quality parameters. The system uses a PIC microcontroller to sense voltage from the power system and detect issues like sags, swells, harmonics, fluctuations and more. When problems are detected, the microcontroller outputs information to an LCD display and LED indicators. The system is designed to be simple, secure and inexpensive while helping minimize equipment failures and losses from power quality issues.
Power quality improvement techniques
This presentation on Power Quality Improvement Techniques: A Review presented by Sahid Raja Khan student of B. Tech. Electrical Engineering of Compucom Institute of Technology and Management Jaipur. It describes the improvement technique of Power Quality at GSS and other Substations including Generating Stations.
Pd Maintenance
Proper maintenance of protective devices like circuit breakers and relays is important for safety. Skipped maintenance can cause delays in fault clearing time, resulting in higher arc flash hazards. The document recommends regularly exercising breakers, inspecting components, and following manufacturer guidelines to minimize risks. Long clearing times increase incident energy exposures, potentially changing a Category 1 or 2 hazard into a more severe Category 3 or 4 risk.
Presentasi kompel
Digital computers can experience radiation from motors operating disks and drums, and from operating at low voltages but high currents. There are also many potential causes of susceptibility in computer power systems, including poor wire routing, shielding, and grounding. Solutions to power issues include passive filters, surge processors, isolation transformers, constant voltage transformers, motor generator sets, and uninterruptible power systems. Integrated circuits are also susceptible due to their small component sizes and densities.
Mitigation of voltage sag/swell using Dynamic voltage restorer (DVR)
This document discusses the use of a Dynamic Voltage Restorer (DVR) to mitigate voltage sags and swells on electrical distribution systems. It begins with an introduction to power quality issues like voltage sags and the need to protect sensitive industrial and commercial loads. The DVR is described as a series-connected power electronics device that can quickly inject voltage to restore the load voltage during a sag or swell event. The document then covers the basic components, control strategies, and modeling of DVR systems to mitigate voltage disturbances. It analyzes the technical benefits and applications of DVRs compared to other power quality solutions and explores their optimal placement in distribution systems.
Recommended
Telliformer Presentation - Wide
The document discusses Telliformer SmartGrid Solutions, which adds intelligence and communications capabilities to existing utility systems through advanced monitoring devices and an analytics platform. This helps utilities gain visibility into their entire grid to improve efficiency, reduce costs, and increase reliability and safety. Some key benefits include optimizing capital, lowering maintenance costs, decreasing losses from theft and technical issues, and accelerating outage recovery. The solution monitors various power quality metrics and parameters to help utilities better manage their grid.
A Consideration of Medium Voltage Substation Primary Applications
This document discusses considerations for choosing between medium voltage fused switches and circuit breakers in substation primary applications. It notes that fused switches have a lower capital cost and footprint but less customizable protection and higher arc flash energy, while circuit breakers have a higher capital cost but allow for more advanced protection schemes, automation, higher amperage handling, and better coordination. Specific applications like virtual mains, primary loop systems, and secondary selective systems are reviewed in terms of which primary device is better suited.
Upgrading gen protect and grounding
This document discusses upgrading generator protection systems using digital technology. It provides an overview of generator fundamentals and industry standards for protection. Key reasons to upgrade include improved sensitivity to detect faults, adding new protection functions, and using digital relays. Specific protection functions that can be upgraded include negative sequence, field ground fault detection, dual-level loss of field, overexcitation, inadvertent energizing, VT fuse monitoring, and sequential tripping. Digital relays provide benefits like oscillographic monitoring for fault analysis. Special applications like generator breaker failure and over/under frequency protection are also reviewed.
IRJET- Detection and Measurement of Power Quality Parameter
This document summarizes a research paper that presents a low-cost hardware system to detect and measure common power quality parameters. The system uses a PIC microcontroller to sense voltage from the power system and detect issues like sags, swells, harmonics, fluctuations and more. When problems are detected, the microcontroller outputs information to an LCD display and LED indicators. The system is designed to be simple, secure and inexpensive while helping minimize equipment failures and losses from power quality issues.
Power quality improvement techniques
This presentation on Power Quality Improvement Techniques: A Review presented by Sahid Raja Khan student of B. Tech. Electrical Engineering of Compucom Institute of Technology and Management Jaipur. It describes the improvement technique of Power Quality at GSS and other Substations including Generating Stations.
Pd Maintenance
Proper maintenance of protective devices like circuit breakers and relays is important for safety. Skipped maintenance can cause delays in fault clearing time, resulting in higher arc flash hazards. The document recommends regularly exercising breakers, inspecting components, and following manufacturer guidelines to minimize risks. Long clearing times increase incident energy exposures, potentially changing a Category 1 or 2 hazard into a more severe Category 3 or 4 risk.
Presentasi kompel
Digital computers can experience radiation from motors operating disks and drums, and from operating at low voltages but high currents. There are also many potential causes of susceptibility in computer power systems, including poor wire routing, shielding, and grounding. Solutions to power issues include passive filters, surge processors, isolation transformers, constant voltage transformers, motor generator sets, and uninterruptible power systems. Integrated circuits are also susceptible due to their small component sizes and densities.
Mitigation of voltage sag/swell using Dynamic voltage restorer (DVR)
This document discusses the use of a Dynamic Voltage Restorer (DVR) to mitigate voltage sags and swells on electrical distribution systems. It begins with an introduction to power quality issues like voltage sags and the need to protect sensitive industrial and commercial loads. The DVR is described as a series-connected power electronics device that can quickly inject voltage to restore the load voltage during a sag or swell event. The document then covers the basic components, control strategies, and modeling of DVR systems to mitigate voltage disturbances. It analyzes the technical benefits and applications of DVRs compared to other power quality solutions and explores their optimal placement in distribution systems.
Selective Coordination
The document discusses selective coordination in electrical systems and circuit breakers. It begins with definitions of selective coordination from the National Electrical Code. It then outlines requirements for selective coordination in the NEC, including for health care facilities, elevators, emergency systems, and legally required standby systems. The document presents the challenges of achieving selective coordination with circuit breakers due to tolerances in instantaneous trip settings. It describes circuit breaker principles for time-current curves and selective override functions. The goal is to provide guidelines for selectively coordinating circuit breakers to meet NEC requirements.
Ditek TSS1 Data Sheet
Buy the Ditek TSS1 at JMAC Supply.
https://www.jmac.com/Ditek_DTK_TSS1_p/ditek-dtk-tss1.htm?=slideshare
Practical Power System Protection for Engineers and Technicians
This workshop has been designed to give plant operators, electricians, field technicians and engineers a better appreciation of the role played by power system protection systems. An understanding of power systems along with correct management will increase your plant efficiency and performance as well as increasing safety for all concerned.
The workshop is designed to provide excellent understanding on both a theoretical and practical level. Starting at a basic level and then moving onto more detailed applications, it features an introduction covering the need for protection, fault types and their effects, simple calculations of short circuit currents and system earthing. This workshop includes some practical work, simple fault calculations, relay settings and the checking of a current transformer magnetisation curve.
WHO SHOULD ATTEND?
Design engineers
Electrical engineers
Electrical technicians
Electricians
Field technicians
Instrumentation and design engineers
Plant operators
Project engineers
MORE INFORMATION: http://www.idc-online.com/content/practical-power-system-protection-engineers-and-technicians-140?id=7086
New Approaches for Maintenance Grounding in Medium Voltage Switchgear
Copyright AIST Reprinted with Permission. Presented at the 2013 Iron and Steel Technology Conference and Exposition (AISTech 2013). Maintenance grounding is a traditional and proven method for protecting electrical workers during medium voltage switchgear maintenance. When properly applied, it eliminates dangerous differences in electric potential, and can redirect harmful current during events such as unforeseen induced voltage from motors and generators, accidental bus contact with adjacent live parts, or human error that causes equipment to be re-energized.
AMSC D-VAR® Product Catalog
The document discusses AMSC's D-VAR system, a modular and compact reactive power compensation solution that improves grid reliability by regulating and stabilizing voltage. It can dynamically generate and absorb VARs for smooth power regulation. Each D-VAR solution is tailored to meet specific customer needs and accommodate changing grid conditions. D-VAR systems stabilize voltage, increase power transfer capacity, and help renewable generators meet interconnection requirements.
DVAR_Brochure2016
The document discusses AMSC's D-VAR system, a modular and compact reactive power compensation solution that improves grid reliability. The D-VAR system regulates and stabilizes voltage through dynamic reactive power support. It has a fast transient response and allows for scalable and flexible installation. The D-VAR solution can help utilities meet interconnection requirements and mitigate voltage disturbances.
Presentation o surge protection devices
This document discusses standards for earthing and lightning protection of electrical systems. It covers the scope of IS/IEC 62305 in providing design, installation, inspection, maintenance and testing guidelines for lightning protection of electrical and electronic systems within structures. The standards aim to mitigate risks of permanent equipment failures due to lightning electromagnetic impulses. It does not cover protection against electromagnetic interference issues.
Schneider Electric Services_Modernization and Upgrade Solutions.pptx
When considering whether to replace or upgrade existing switch gear, there are a number of factors to consider.
• Operating environment • Availability of spare parts • Impact of downtime • Cost of ongoing maintenance • Need to increase fault or continuous current rating • Desire to upgrade to current technology
Artificial lift forum ul 1741 presentation - final
The document discusses UL 1741, a standard for distributed generation systems. It notes that UL 1741 certified systems allow recovery of up to 40% of energy used in beam pumps through regenerative drives. The standard ensures inverters meet requirements for interconnection, safety, output quality and anti-islanding. An Enersaver Power system is highlighted as the first and only drive system compliant with UL 1741, allowing benefits like electricity cost savings, clean power generation, and participation in demand response programs.
Dynamic voltage restorer
Practically, the capability of injection voltage by DVR system is 50% of nominal voltage. This allows DVRs to successfully provide protection against sags to 50% for durations of up to 0.1 seconds. Furthermore, most voltage sags rarely reach less than 50%.
Power quality harmonics and accuracy april 2013
This document discusses power quality, harmonics, and accuracy standards. It provides an agenda that covers definitions of power quality, improving power quality through solutions like power factor correction, power quality in SATEC products which provide detailed analysis and event logging, and accuracy standards for measurements. Key points covered include definitions of parameters like harmonics, interruptions, and voltage variations, international standards for limits like IEEE 1159 and EN50160, and how meter and CT accuracy classes are determined based on testing to standards like IEC 62053 and 62044.
Understanding Arc Flash
Five to 10 arc flash explosions occur daily in the US, often requiring specialized burn treatment. There are two types of faults that can cause arcs: bolted faults where current flows through a solid connection, and arcing faults where current arcs through ionized air. Arcing faults are more dangerous as the energy is released into the environment. Standards like NFPA 70E and OSHA requirements aim to protect workers by enforcing safety practices like arc flash analyses and requiring personal protective equipment suitable for the estimated incident energy levels. Proper maintenance and use of protective equipment can reduce arc flash exposure hazards.
Introduction to Power Quality
Power quality issues can cause equipment failures and financial losses for businesses. Common power quality disturbances include transients, sags, swells, and harmonics. Proper power quality monitoring using portable or permanently installed devices can help identify issues, their causes, and reduce downtime.
Installing, Programming & Commissioning of Power System Protection Relays and...
The continuity of the electrical power supply is very important to consumers especially in the industrial sector. Protection relays are used in power systems to maximise continuity of supply and are found in both small and large power systems from generation, through transmission, distribution and utilisation of the power. A good understanding of their application, operation and maintenance is critical for operating and maintenance personnel.
In this workshop, you will gain a thorough understanding of the capabilities of power system protection relays and how they fit into the overall distribution network. The practical sessions covering the calculation of fault currents, selection of appropriate relays and relay coordination as well as hands-on practice in configuring and setting of some of the commonly used types of protection relays used in industry will give you an excellent understanding. Simulation software and real relays (but at safe voltages) will be used to give the participants practical experience in setting up and configuring the various power parameters. Both electro-mechanical and microprocessor relays will be used to demonstrate the key configuration settings required and the major differences in the approach adopted between these two classes of relays.
The strengths and weaknesses of the latest microprocessor (or numerical) relays as compared to the older electromechanical relays will be outlined. You will also gain a solid appreciation of how the modern relay communicates not only to the central SCADA system but also between themselves resulting in a truly multifunctional system which includes protection, control and monitoring. Finally, you will gain a solid understanding of issues of reliability and security for the modern relay.
MORE INFORMATION: http://www.idc-online.com/content/installing-programming-and-commissioning-power-system-protection-relays-and-hardware-31
Power Quality
The document discusses various power quality problems such as harmonic distortion, voltage sags, swells, and interruptions. It then discusses solutions for power quality problems including maintaining grid adequacy, using distributed resources like distributed generation and energy storage, and implementing enhanced interface devices. The document also describes the operation of the Merus A-series Active Filter, which can be used to compensate for harmonics and reactive power in an electrical system.
IRJET- Compensation of Voltage Sag and Voltage Swell by using the Power E...
This document discusses the use of a Dynamic Voltage Restorer (DVR) to compensate for voltage sags and swells in a power distribution system. It begins by explaining that power quality issues like voltage fluctuations have become a major problem for industries and consumers. It then describes what a DVR is and how it works to inject voltage into the system during a sag or swell in order to maintain the load voltage at its normal level. The document provides details on the typical components of a DVR and how it is able to quickly compensate for voltage disturbances through the use of a voltage source converter, energy storage, and injection transformer.
2005 16 autumn_wiring_matters__complete_no_adverts
The document discusses requirements for supplying electricity to a detached garage from a dwelling. It provides two methods: 1) running a cable from a spare circuit in the dwelling's consumer unit to a small consumer unit in the garage or 2) spurring a cable from the dwelling's ring final circuit. Both require RCD protection and consideration of any extraneous conductive parts like metal pipes. The electrical contractor must verify the existing installation can support the load and meets all safety standards before inspection, testing and issuing a certification of the work.
Electrical-Safety-Productoverview_PROSP_en
The document discusses electrical safety solutions from Bender Group. It provides an overview of Bender's insulation monitoring devices, insulation fault location systems, measuring and monitoring relays, residual current monitors, and residual current monitoring systems. These products monitor key electrical parameters to ensure safety, reliability, and efficiency for applications such as industrial installations, power plants, medical facilities, and more. Bender's solutions help reduce costs through early fault detection, increased uptime, and minimized maintenance needs.
Power quality unit i ANNA UNIVERSITY SYALLABUS
EXPLANATION FOR POWER QUALITY BASICS UNDER VOLTAGE &SAG(DIP) WAVE FORM DISTORTION ITIC AND CBEMA CURVES AND IEC AND IEEE REGULATIONS
Compensation of Balanced and Unbalanced Voltage Disturbance using SRF Control...
This document discusses using a dynamic voltage restorer (DVR) controlled by synchronous reference frame (SRF) theory to compensate for balanced and unbalanced voltage sags and swells in a distribution system. The DVR injects voltage to maintain the load voltage at a constant level during disturbances. It is modeled and simulated in MATLAB/Simulink. Simulation results demonstrate the DVR successfully compensates for various balanced disturbances including single sag/swell events and multiple sag/swell occurrences. The DVR provides compensation by injecting the appropriate compensating voltage as determined by the SRF control scheme.
Virtual fieldtrips
This document discusses virtual field trips and how they can be used in English and language arts classrooms. Virtual field trips allow students to visit locations they cannot physically access by using online resources. They can be used to provide context before reading assignments, supplement information from physical field trips, or expose students to new cultures and times periods. The document provides examples of virtual field trip resources available through the Smithsonian American Art Museum and explains how they promote visual and media literacy skills. It also shares positive feedback from colleagues who saw potential uses of virtual field trips in their own teaching.
Halloween
Children celebrate Halloween by dressing up in costumes, going trick-or-treating, attending parties, and watching horror films. Decorations like jack-o'-lanterns are meant to scare away monsters, referencing the legend of Jack Lantern. Common Halloween monsters described include spiders, devils, witches riding broomsticks, and werewolves that transform and eat people during a full moon.
More Related Content
What's hot
Selective Coordination
The document discusses selective coordination in electrical systems and circuit breakers. It begins with definitions of selective coordination from the National Electrical Code. It then outlines requirements for selective coordination in the NEC, including for health care facilities, elevators, emergency systems, and legally required standby systems. The document presents the challenges of achieving selective coordination with circuit breakers due to tolerances in instantaneous trip settings. It describes circuit breaker principles for time-current curves and selective override functions. The goal is to provide guidelines for selectively coordinating circuit breakers to meet NEC requirements.
Ditek TSS1 Data Sheet
Buy the Ditek TSS1 at JMAC Supply.
https://www.jmac.com/Ditek_DTK_TSS1_p/ditek-dtk-tss1.htm?=slideshare
Practical Power System Protection for Engineers and Technicians
This workshop has been designed to give plant operators, electricians, field technicians and engineers a better appreciation of the role played by power system protection systems. An understanding of power systems along with correct management will increase your plant efficiency and performance as well as increasing safety for all concerned.
The workshop is designed to provide excellent understanding on both a theoretical and practical level. Starting at a basic level and then moving onto more detailed applications, it features an introduction covering the need for protection, fault types and their effects, simple calculations of short circuit currents and system earthing. This workshop includes some practical work, simple fault calculations, relay settings and the checking of a current transformer magnetisation curve.
WHO SHOULD ATTEND?
Design engineers
Electrical engineers
Electrical technicians
Electricians
Field technicians
Instrumentation and design engineers
Plant operators
Project engineers
MORE INFORMATION: http://www.idc-online.com/content/practical-power-system-protection-engineers-and-technicians-140?id=7086
New Approaches for Maintenance Grounding in Medium Voltage Switchgear
Copyright AIST Reprinted with Permission. Presented at the 2013 Iron and Steel Technology Conference and Exposition (AISTech 2013). Maintenance grounding is a traditional and proven method for protecting electrical workers during medium voltage switchgear maintenance. When properly applied, it eliminates dangerous differences in electric potential, and can redirect harmful current during events such as unforeseen induced voltage from motors and generators, accidental bus contact with adjacent live parts, or human error that causes equipment to be re-energized.
AMSC D-VAR® Product Catalog
The document discusses AMSC's D-VAR system, a modular and compact reactive power compensation solution that improves grid reliability by regulating and stabilizing voltage. It can dynamically generate and absorb VARs for smooth power regulation. Each D-VAR solution is tailored to meet specific customer needs and accommodate changing grid conditions. D-VAR systems stabilize voltage, increase power transfer capacity, and help renewable generators meet interconnection requirements.
DVAR_Brochure2016
The document discusses AMSC's D-VAR system, a modular and compact reactive power compensation solution that improves grid reliability. The D-VAR system regulates and stabilizes voltage through dynamic reactive power support. It has a fast transient response and allows for scalable and flexible installation. The D-VAR solution can help utilities meet interconnection requirements and mitigate voltage disturbances.
Presentation o surge protection devices
This document discusses standards for earthing and lightning protection of electrical systems. It covers the scope of IS/IEC 62305 in providing design, installation, inspection, maintenance and testing guidelines for lightning protection of electrical and electronic systems within structures. The standards aim to mitigate risks of permanent equipment failures due to lightning electromagnetic impulses. It does not cover protection against electromagnetic interference issues.
Schneider Electric Services_Modernization and Upgrade Solutions.pptx
When considering whether to replace or upgrade existing switch gear, there are a number of factors to consider.
• Operating environment • Availability of spare parts • Impact of downtime • Cost of ongoing maintenance • Need to increase fault or continuous current rating • Desire to upgrade to current technology
Artificial lift forum ul 1741 presentation - final
The document discusses UL 1741, a standard for distributed generation systems. It notes that UL 1741 certified systems allow recovery of up to 40% of energy used in beam pumps through regenerative drives. The standard ensures inverters meet requirements for interconnection, safety, output quality and anti-islanding. An Enersaver Power system is highlighted as the first and only drive system compliant with UL 1741, allowing benefits like electricity cost savings, clean power generation, and participation in demand response programs.
Dynamic voltage restorer
Practically, the capability of injection voltage by DVR system is 50% of nominal voltage. This allows DVRs to successfully provide protection against sags to 50% for durations of up to 0.1 seconds. Furthermore, most voltage sags rarely reach less than 50%.
Power quality harmonics and accuracy april 2013
This document discusses power quality, harmonics, and accuracy standards. It provides an agenda that covers definitions of power quality, improving power quality through solutions like power factor correction, power quality in SATEC products which provide detailed analysis and event logging, and accuracy standards for measurements. Key points covered include definitions of parameters like harmonics, interruptions, and voltage variations, international standards for limits like IEEE 1159 and EN50160, and how meter and CT accuracy classes are determined based on testing to standards like IEC 62053 and 62044.
Understanding Arc Flash
Five to 10 arc flash explosions occur daily in the US, often requiring specialized burn treatment. There are two types of faults that can cause arcs: bolted faults where current flows through a solid connection, and arcing faults where current arcs through ionized air. Arcing faults are more dangerous as the energy is released into the environment. Standards like NFPA 70E and OSHA requirements aim to protect workers by enforcing safety practices like arc flash analyses and requiring personal protective equipment suitable for the estimated incident energy levels. Proper maintenance and use of protective equipment can reduce arc flash exposure hazards.
Introduction to Power Quality
Power quality issues can cause equipment failures and financial losses for businesses. Common power quality disturbances include transients, sags, swells, and harmonics. Proper power quality monitoring using portable or permanently installed devices can help identify issues, their causes, and reduce downtime.
Installing, Programming & Commissioning of Power System Protection Relays and...
The continuity of the electrical power supply is very important to consumers especially in the industrial sector. Protection relays are used in power systems to maximise continuity of supply and are found in both small and large power systems from generation, through transmission, distribution and utilisation of the power. A good understanding of their application, operation and maintenance is critical for operating and maintenance personnel.
In this workshop, you will gain a thorough understanding of the capabilities of power system protection relays and how they fit into the overall distribution network. The practical sessions covering the calculation of fault currents, selection of appropriate relays and relay coordination as well as hands-on practice in configuring and setting of some of the commonly used types of protection relays used in industry will give you an excellent understanding. Simulation software and real relays (but at safe voltages) will be used to give the participants practical experience in setting up and configuring the various power parameters. Both electro-mechanical and microprocessor relays will be used to demonstrate the key configuration settings required and the major differences in the approach adopted between these two classes of relays.
The strengths and weaknesses of the latest microprocessor (or numerical) relays as compared to the older electromechanical relays will be outlined. You will also gain a solid appreciation of how the modern relay communicates not only to the central SCADA system but also between themselves resulting in a truly multifunctional system which includes protection, control and monitoring. Finally, you will gain a solid understanding of issues of reliability and security for the modern relay.
MORE INFORMATION: http://www.idc-online.com/content/installing-programming-and-commissioning-power-system-protection-relays-and-hardware-31
Power Quality
The document discusses various power quality problems such as harmonic distortion, voltage sags, swells, and interruptions. It then discusses solutions for power quality problems including maintaining grid adequacy, using distributed resources like distributed generation and energy storage, and implementing enhanced interface devices. The document also describes the operation of the Merus A-series Active Filter, which can be used to compensate for harmonics and reactive power in an electrical system.
IRJET- Compensation of Voltage Sag and Voltage Swell by using the Power E...
This document discusses the use of a Dynamic Voltage Restorer (DVR) to compensate for voltage sags and swells in a power distribution system. It begins by explaining that power quality issues like voltage fluctuations have become a major problem for industries and consumers. It then describes what a DVR is and how it works to inject voltage into the system during a sag or swell in order to maintain the load voltage at its normal level. The document provides details on the typical components of a DVR and how it is able to quickly compensate for voltage disturbances through the use of a voltage source converter, energy storage, and injection transformer.
2005 16 autumn_wiring_matters__complete_no_adverts
The document discusses requirements for supplying electricity to a detached garage from a dwelling. It provides two methods: 1) running a cable from a spare circuit in the dwelling's consumer unit to a small consumer unit in the garage or 2) spurring a cable from the dwelling's ring final circuit. Both require RCD protection and consideration of any extraneous conductive parts like metal pipes. The electrical contractor must verify the existing installation can support the load and meets all safety standards before inspection, testing and issuing a certification of the work.
Electrical-Safety-Productoverview_PROSP_en
The document discusses electrical safety solutions from Bender Group. It provides an overview of Bender's insulation monitoring devices, insulation fault location systems, measuring and monitoring relays, residual current monitors, and residual current monitoring systems. These products monitor key electrical parameters to ensure safety, reliability, and efficiency for applications such as industrial installations, power plants, medical facilities, and more. Bender's solutions help reduce costs through early fault detection, increased uptime, and minimized maintenance needs.
Power quality unit i ANNA UNIVERSITY SYALLABUS
EXPLANATION FOR POWER QUALITY BASICS UNDER VOLTAGE &SAG(DIP) WAVE FORM DISTORTION ITIC AND CBEMA CURVES AND IEC AND IEEE REGULATIONS
Compensation of Balanced and Unbalanced Voltage Disturbance using SRF Control...
This document discusses using a dynamic voltage restorer (DVR) controlled by synchronous reference frame (SRF) theory to compensate for balanced and unbalanced voltage sags and swells in a distribution system. The DVR injects voltage to maintain the load voltage at a constant level during disturbances. It is modeled and simulated in MATLAB/Simulink. Simulation results demonstrate the DVR successfully compensates for various balanced disturbances including single sag/swell events and multiple sag/swell occurrences. The DVR provides compensation by injecting the appropriate compensating voltage as determined by the SRF control scheme.
What's hot (20)
Practical Power System Protection for Engineers and Technicians
Practical Power System Protection for Engineers and Technicians
New Approaches for Maintenance Grounding in Medium Voltage Switchgear
New Approaches for Maintenance Grounding in Medium Voltage Switchgear
Schneider Electric Services_Modernization and Upgrade Solutions.pptx
Schneider Electric Services_Modernization and Upgrade Solutions.pptx
Artificial lift forum ul 1741 presentation - final
Artificial lift forum ul 1741 presentation - final
Installing, Programming & Commissioning of Power System Protection Relays and...
Installing, Programming & Commissioning of Power System Protection Relays and...
IRJET- Compensation of Voltage Sag and Voltage Swell by using the Power E...
IRJET- Compensation of Voltage Sag and Voltage Swell by using the Power E...
2005 16 autumn_wiring_matters__complete_no_adverts
2005 16 autumn_wiring_matters__complete_no_adverts
Compensation of Balanced and Unbalanced Voltage Disturbance using SRF Control...
Compensation of Balanced and Unbalanced Voltage Disturbance using SRF Control...
Viewers also liked
Virtual fieldtrips
This document discusses virtual field trips and how they can be used in English and language arts classrooms. Virtual field trips allow students to visit locations they cannot physically access by using online resources. They can be used to provide context before reading assignments, supplement information from physical field trips, or expose students to new cultures and times periods. The document provides examples of virtual field trip resources available through the Smithsonian American Art Museum and explains how they promote visual and media literacy skills. It also shares positive feedback from colleagues who saw potential uses of virtual field trips in their own teaching.
Halloween
Children celebrate Halloween by dressing up in costumes, going trick-or-treating, attending parties, and watching horror films. Decorations like jack-o'-lanterns are meant to scare away monsters, referencing the legend of Jack Lantern. Common Halloween monsters described include spiders, devils, witches riding broomsticks, and werewolves that transform and eat people during a full moon.
Action Impact Int Live Events Agency
Award winning international live events agency, creatively combining events, exhibitions, branding, film & digital to deliver the ultimate communication experience.
I am thankful for... emir bilgili
This short poem expresses gratitude for several aspects of the natural world, including the Earth orbiting the sun, the breeze that refreshes the body, bodies of water that provide drinking water and habitat for animals, and the sun that brings warmth and makes flowers bloom.
De facto States a World Report (2011)
www.igadi.org
Presentation
IGADI presents its first World Report on de facto States, which intends to regularly monitor these new figures on the international scene that reflect the emergence, and even consolidation, of those subjects, up to now marginal and totally fenced-in within the world order. Now such subjects usually appear in privileged positions on the global agenda whether directly(Russia-Georgia War) or indirectly(piracy in Somalia), displaying a strong impact capability.
In addition, we provide fact sheets for each of these de facto States, which have been chosen upon compliance with a series of common elements. These fact sheets include a brief analysis, momentary diagnoses, which both point out the clues that determine their present state and include specific alerts concerning vectors that may anticipate the appearance of serious crisis on the horizon.
This report tries to bring together some of the activities of IGADI's Research Program on International System's Security, Conflicts, and Alternatives, a usual work space for some of the contributors to this document.
We would like to thank all the authors for their contributions, since without their generosity and rigorousness, it would have been impossible to carry out this Report.
IGADI, February 28th, 2011.
IAF138 nº7dixital
O 'Infórmate a Fondo' é o boletín trimestral do Fondo Galego. No IAF 138, número 7 da época dixital, poderás atopar toda a información sobre os últimos meses de vida da asociación municipalista, xunto a unha entrevista coa cantora Najla Shami.
Conditional4eso modificado
There are 4 types of conditional sentences in English: zero conditional, first conditional, second conditional, and third conditional. The zero conditional uses the present tense and refers to general truths. The first conditional uses a present tense in the if-clause and future tense in the main clause to talk about possible future events. The second conditional uses past tense verbs to talk about unlikely or imaginary future events. The third conditional uses past perfect tense to talk about impossible past conditions and their results.
Group presentation1
This document summarizes two group members' presentations on documentaries about tattoos and graffiti art. It provides details on the documentaries discussed, including topics, footage used, and elements the group members found effective. Key points mentioned are documentaries on the history of tattoos, tattoo artists' work and views, and a graffiti artist commissioned by a hotel. The group members discuss shots, interviews, music, and locations used in the documentaries.
Ancient egypt jazmine
The document provides a summary of ancient Egyptian history from around 2700 BC to 1213 BC. It describes the different periods including the Old Kingdom when Khufu built the Great Pyramid of Giza, the Middle Kingdom when Senusret expanded Egypt's borders, and the New Kingdom during which Ramses II ruled and built structures like the pyramid called Nefertari. Key figures mentioned include Khufu, Senusret, and Ramses II.
Identifying emerging risks
The document discusses identifying emerging risks in the food chain before they affect human health. It describes both reactive systems like rapid alert systems for food safety issues and proactive systems like horizon scanning. Key conclusions are that science, human behavior, nature, and legislation most frequently influence emerging risks and that detection requires monitoring multiple sources and using text mining, information extraction, and ontologies.
Sam pres
This document discusses the creation of a magazine advertisement for a music album. It includes brainstorming different ideas such as using quotes from music industry publications, showing where the album can be purchased, and incorporating elements that relate to the album's design style. The key elements are then brought together in a final advertisement created using PowerPoint and PicNik photo editing software.
M.f=ppp
The document contains repeated mentions of the name "Muhammad farman" along with an email address. It also includes references to websites "www.farmanimp.gmail.com" and "www.farman170813.com" as well as the words "flores", "contacto", and "presentacion".
Viewers also liked (20)
Similar to What is Power Quality?
IRJET- A Review Paper on Power Quality Issues and Monitoring Techniques
This document summarizes a research paper on power quality issues and monitoring techniques. It discusses various power quality issues like voltage sag, interruptions, harmonics, and monitoring methods including portable monitors, permanent monitors, and real-time monitoring systems. Power quality monitoring is important to identify issues, maintain reliability, and prevent equipment damage. Different analysis techniques are used to classify disturbances and identify their causes in order to select appropriate mitigation methods.
Modeling Analysis& Solution of Power Quality Problems Using DVR & DSTATCOM
A Power quality problem is an occurrence manifested as a nonstandard voltage, current or frequency that results in a failure or a disoperation of end use equipment. Utility distribution networks, sensitive industrial loads, and critical commercial operations all suffer from various types of outages and service interruptions which can cost significant financial loss per incident based on process down-time, lost production, idle work forces, and other factors. With the restructuring of Power Systems and with shifting trend towards Distributed and Dispersed Generation, the issue of Power Quality is going to take newer dimensions. The aim therefore, in this work, is to identify the prominent concerns in the area and thereby to recommend measures that can enhance the quality of the power, keeping in mind their economic viability and technical repercussions. In this paper electromagnetic transient studies are presented for the following two custom power controllers: the distribution static compensator (DSTATCOM), and the dynamic voltage restorer (DVR). Comprehensive results are presented to assess the performance of each device as a potential custom power solution.
General: Power Quality Presentation
The document discusses the costs of power quality issues to businesses and outlines common causes and solutions. It states that power quality problems cost the US economy $120-180 billion annually and outlines specific costs of downtime for different industries. Approximately 30% of power problems come from outside a facility from environmental or grid issues, while 70% are from inside factors like aging equipment or improper wiring. Common power quality events that can damage equipment include sags, swells, interruptions, harmonics, imbalances, and fluctuations. The document presents solutions like UPS systems, voltage regulators, filters, and surge protection that can mitigate these issues and protect sensitive equipment.
IRJET - An Automatic Phase Selector from Any Available Three Phase Supply...
This document describes the design and implementation of an automatic phase selector system that can select a single active phase from a three-phase power supply. The system uses relays and a gear motor to automatically switch the connection to a single-phase load to a different phase within seconds if the currently connected phase fails. This provides uninterrupted power to critical single-phase loads like prepaid meters. The system was tested and worked satisfactorily by quickly switching the load connection to an alternate active phase when the initial phase failed. This automatic switching eliminates downtime and reduces stress on staff compared to manual switching of phases during an outage.
IRJET- Microcontroller based Automatic Power Change Over Mechanism
This document summarizes a research paper on an automatic power changeover mechanism using a microcontroller. The system is designed to automatically switch power sources between solar, mains electricity, and a diesel generator based on availability to ensure a continuous and reliable power supply. It uses components like a transformer, rectifier, regulator, comparator, and relays controlled by a microcontroller. The switching time is fast compared to manual changeover systems due to the use of electronic components. The system is intended to reduce costs by prioritizing solar power and switching to mains electricity when available before using the diesel generator.
5010566.ppt
The document discusses power system protection and protective device coordination. It defines overcurrent coordination as the systematic study of current responsive devices in an electrical power system to determine ratings and settings to isolate faults and overloads. The objective is to open only protective devices upstream of the fault or overload. Analysis is needed for new or expanded electrical systems. Protective device coordination requires compromises between protection, speed, reliability and economics.
Novel Cost-effective Technique for Continued Operation of Electrical Equipmen...
This research focuses on mitigating voltage sags at the control level through a cost-effective method using mini dynamic sag corrector at low voltage systems and proposing control level embedded solutions for equipment design and modifying the technical aspects of electrical devices to facilitate the control circuit to ride-through voltage sags. Voltage sags also known as “dips” are a common cause of power disturbances. These are temporary voltage drops below 90% of the nominal voltage caused by a sudden increase in loads or short circuits and faults lasting up to 170ms. Voltage sag in distribution networks can adversely affect sensitive electrical equipment in industrial processes, such as production and manufacturing, resulting in substantial financial losses of up to $1.5 million/day. Various types of electrical equipment are susceptible to voltage sags but are not limited to power supplies, relays, contactors, variable frequency drives, and programmable logic controllers. In this method, the cost-effective MiniDySCs were installed in the industrial plant to compensate for the missing voltage in the lines during a sag event. Also, modifications to technical aspects of Contactors, Relays, and VFDs are proposed to provide more robust results for the control circuits to ride through voltage sags even up to 40% of the nominal voltage-drop.
Surge Protection
This document provides an overview of surge protection and transient surges. It defines a transient surge as a brief high-voltage spike lasting millionths of a second. The document discusses how surges can damage equipment and cost businesses billions annually. It describes how surge protective devices (SPDs) work by diverting damaging currents away from equipment. The document emphasizes that proper SPD location and installation is important for effective protection. It provides guidance on selecting appropriate protection levels based on surge risk and discusses relevant industry codes and standards.
Voltage sag and it’s mitigation
this is useful for peoples interested in power quality problems and their mitigation. it provides causes, effects of voltage sag and their mitigation techniques.
Bb4103331337
The document describes the design and simulation of a DSTATCOM (Distribution Static Compensator) for improving power quality. A DSTATCOM is modeled in Simulink to mitigate voltage sags and swells caused by faults in a distribution system. Simulation results show that the DSTATCOM is able to regulate the voltage at the load point during single phase, double phase, and three phase faults by injecting compensating current. The DSTATCOM control is based on sinusoidal pulse width modulation and requires only measurement of the RMS voltage at the load point.
Mitigation of Voltage Sags & Swells in LV Distribution System Using Dynamic V...
This document discusses the use of a Dynamic Voltage Restorer (DVR) to mitigate voltage sags and swells in a low voltage distribution system. A DVR is a custom power device that uses a PWM inverter and injection transformer to inject compensating voltages into the distribution system. This allows it to maintain the load voltage at a nominal level during faults by compensating for voltage sags and swells. The document presents the configuration and working of a DVR, provides simulation results showing a DVR compensating for consecutive voltage sag and swell events, and discusses the benefits of DVRs for improving power quality.
Bussmann By Eaton - Surge Protection Devices Catalogue
The document provides information on surge protection devices (SPDs) for protecting electrical equipment from overvoltage transients. It discusses the causes of transients from lightning strikes and power switching. SPDs are divided into Type 1, 2 and 3 depending on their protection level and location in the electrical system. The document provides specifications for various SPD modules with different voltage ratings that can be used as replacement parts.
IRJET - Transmission Line Fault Classification using DWT
1) The document discusses using discrete wavelet transform (DWT) to classify faults on transmission lines based on voltage and current signals.
2) A simulation is conducted using PSCAD software to test DWT fault classification on different fault types (A-G, B-G, A-B, etc.).
3) The results show that DWT can effectively detect and classify faults by analyzing the energy of approximation coefficients from current signals and comparing them to an adaptive threshold.
A Review of power quality problems, standards and solutions
This document provides a review of power quality problems, related standards, and solutions. It discusses the various types of power quality issues utilities and customers may face, such as voltage fluctuations, sags, swells, interruptions, harmonics, unbalance, surges, spikes, frequency variations, brownouts, and blackouts. It also outlines several relevant international standards for power quality from organizations like IEEE and IEC. These standards establish limits and guidelines for issues like harmonics, grounding, reliability, and power quality monitoring. Finally, the document lists some potential solutions to power quality problems, such as surge suppressors, voltage regulators, power conditioners, and uninterruptible power supplies.
CPRI-Power quality report
This document discusses power quality issues in electricity distribution systems and solutions using power electronics. It defines power quality as dealing with voltage magnitude disturbances and waveform distortions. Common power quality issues include transients, voltage variations, waveform distortions, and frequency variations. International standards like IEEE 519-1992 establish limits for harmonic distortions. Power electronic solutions for improving power quality include shunt controllers like static VAR compensators (D-SVC) and distribution static synchronous compensators (D-STATCOM), and series controllers like dynamic voltage restorers. D-SVC and D-STATCOM are discussed in further detail regarding their operation and advantages.
testing purpose for ic testing and othettastinng
The SN65HVD0x and SN75HVD0x devices are high output RS-485 transceivers that combine a 3-state differential line driver and differential line receiver. They are designed for balanced data transmission and interoperate with ANSI TIA/EIA-485-A and ISO 8482E standards. The driver is designed to provide a minimum differential output voltage of 2.5V into a 54-ohm load to increase noise margin. The devices feature wide common-mode voltage ranges and glitch-free power-up/down protection, making them suitable for party-line applications such as industrial process control networks and building automation.
Ijeet 06 08_009
The document discusses using a Dynamic Voltage Restorer (DVR) to mitigate power quality problems. A DVR injects voltage in series with the distribution system voltage to correct voltage sags and swells. It consists of an injection transformer, harmonic filter, energy storage devices like batteries, a voltage source converter, and a control system. During voltage disturbances, the DVR injects active and reactive power as needed from the storage devices to restore the load voltage to its nominal value. The DVR response is fast at around 25 ms and can effectively compensate for voltage sags and swells in the distribution system.
Smart - Optimizer ECOD
Improving the quality of electricity with Smart - Optimizer ECOD
Feigin Electric Co., Ltd., provides many benefits, including:
• Optimization of energy consumption;
• Power factor correction;
• Harmonic filtering ;
• Balancing phases;
• Limits the maximum inrush current;
• Troubleshooting short-term voltage drops;
• Protection against lightning;
• Minimize typical system losses;
• Increasing the efficiency of the energy system;
• Reduced maintenance of equipment;
• Increased reliability of electrical equipment;
• Provide opportunities to increase the number of powered devices
a26e8dedece825e530c50c1240886cf0.pptx
Voltage sags and interruptions are short-duration reductions or losses of voltage caused by faults in the power system. They can negatively impact sensitive equipment like computers and motor drives. Solutions exist at multiple levels, from protecting individual small loads to implementing power conditioning technologies or backup power sources for entire facilities. The best approach depends on the critical equipment and process requirements.
Ats brochure
The document discusses automatic transfer switches (ATS) that reconnect electric power sources from primary to standby. It describes two categories of ATS panels - those with microprocessor controllers and those with electrical controllers using diesel generator modules for remote operations. For the microprocessor type, it provides details on safe and reliable operation, unwanted prevention operation, bypass functionality, and support for wireless internet and remote monitoring to reduce service costs. For the electrical controller type, it notes they are cost effective with simple designs and additional component protection.
Similar to What is Power Quality? (20)
IRJET- A Review Paper on Power Quality Issues and Monitoring Techniques
IRJET- A Review Paper on Power Quality Issues and Monitoring Techniques
Modeling Analysis& Solution of Power Quality Problems Using DVR & DSTATCOM
Modeling Analysis& Solution of Power Quality Problems Using DVR & DSTATCOM
IRJET - An Automatic Phase Selector from Any Available Three Phase Supply...
IRJET - An Automatic Phase Selector from Any Available Three Phase Supply...
IRJET- Microcontroller based Automatic Power Change Over Mechanism
IRJET- Microcontroller based Automatic Power Change Over Mechanism
Novel Cost-effective Technique for Continued Operation of Electrical Equipmen...
Novel Cost-effective Technique for Continued Operation of Electrical Equipmen...
Mitigation of Voltage Sags & Swells in LV Distribution System Using Dynamic V...
Mitigation of Voltage Sags & Swells in LV Distribution System Using Dynamic V...
Bussmann By Eaton - Surge Protection Devices Catalogue
Bussmann By Eaton - Surge Protection Devices Catalogue
IRJET - Transmission Line Fault Classification using DWT
IRJET - Transmission Line Fault Classification using DWT
A Review of power quality problems, standards and solutions
A Review of power quality problems, standards and solutions
Recently uploaded
Columbus Data & Analytics Wednesdays - June 2024
Columbus Data & Analytics Wednesdays, June 2024 with Maria Copot 20
Your One-Stop Shop for Python Success: Top 10 US Python Development Providers
Simplify your search for a reliable Python development partner! This list presents the top 10 trusted US providers offering comprehensive Python development services, ensuring your project's success from conception to completion.
Digital Banking in the Cloud: How Citizens Bank Unlocked Their Mainframe
Inconsistent user experience and siloed data, high costs, and changing customer expectations – Citizens Bank was experiencing these challenges while it was attempting to deliver a superior digital banking experience for its clients. Its core banking applications run on the mainframe and Citizens was using legacy utilities to get the critical mainframe data to feed customer-facing channels, like call centers, web, and mobile. Ultimately, this led to higher operating costs (MIPS), delayed response times, and longer time to market.
Ever-changing customer expectations demand more modern digital experiences, and the bank needed to find a solution that could provide real-time data to its customer channels with low latency and operating costs. Join this session to learn how Citizens is leveraging Precisely to replicate mainframe data to its customer channels and deliver on their “modern digital bank” experiences.
Building Production Ready Search Pipelines with Spark and Milvus
Spark is the widely used ETL tool for processing, indexing and ingesting data to serving stack for search. Milvus is the production-ready open-source vector database. In this talk we will show how to use Spark to process unstructured data to extract vector representations, and push the vectors to Milvus vector database for search serving.
Driving Business Innovation: Latest Generative AI Advancements & Success Story
Are you ready to revolutionize how you handle data? Join us for a webinar where we’ll bring you up to speed with the latest advancements in Generative AI technology and discover how leveraging FME with tools from giants like Google Gemini, Amazon, and Microsoft OpenAI can supercharge your workflow efficiency.
During the hour, we’ll take you through:
Guest Speaker Segment with Hannah Barrington: Dive into the world of dynamic real estate marketing with Hannah, the Marketing Manager at Workspace Group. Hear firsthand how their team generates engaging descriptions for thousands of office units by integrating diverse data sources—from PDF floorplans to web pages—using FME transformers, like OpenAIVisionConnector and AnthropicVisionConnector. This use case will show you how GenAI can streamline content creation for marketing across the board.
Ollama Use Case: Learn how Scenario Specialist Dmitri Bagh has utilized Ollama within FME to input data, create custom models, and enhance security protocols. This segment will include demos to illustrate the full capabilities of FME in AI-driven processes.
Custom AI Models: Discover how to leverage FME to build personalized AI models using your data. Whether it’s populating a model with local data for added security or integrating public AI tools, find out how FME facilitates a versatile and secure approach to AI.
We’ll wrap up with a live Q&A session where you can engage with our experts on your specific use cases, and learn more about optimizing your data workflows with AI.
This webinar is ideal for professionals seeking to harness the power of AI within their data management systems while ensuring high levels of customization and security. Whether you're a novice or an expert, gain actionable insights and strategies to elevate your data processes. Join us to see how FME and AI can revolutionize how you work with data!
Let's Integrate MuleSoft RPA, COMPOSER, APM with AWS IDP along with Slack
Discover the seamless integration of RPA (Robotic Process Automation), COMPOSER, and APM with AWS IDP enhanced with Slack notifications. Explore how these technologies converge to streamline workflows, optimize performance, and ensure secure access, all while leveraging the power of AWS IDP and real-time communication via Slack notifications.
SAP S/4 HANA sourcing and procurement to Public cloud
SAP S4 HANA to Public cloud data object differences
Main news related to the CCS TSI 2023 (2023/1695)
An English 🇬🇧 translation of a presentation to the speech I gave about the main changes brought by CCS TSI 2023 at the biggest Czech conference on Communications and signalling systems on Railways, which was held in Clarion Hotel Olomouc from 7th to 9th November 2023 (konferenceszt.cz). Attended by around 500 participants and 200 on-line followers.
The original Czech 🇨🇿 version of the presentation can be found here: https://www.slideshare.net/slideshow/hlavni-novinky-souvisejici-s-ccs-tsi-2023-2023-1695/269688092 .
The videorecording (in Czech) from the presentation is available here: https://youtu.be/WzjJWm4IyPk?si=SImb06tuXGb30BEH .
Digital Marketing Trends in 2024 | Guide for Staying Ahead
https://www.wask.co/ebooks/digital-marketing-trends-in-2024
Feeling lost in the digital marketing whirlwind of 2024? Technology is changing, consumer habits are evolving, and staying ahead of the curve feels like a never-ending pursuit. This e-book is your compass. Dive into actionable insights to handle the complexities of modern marketing. From hyper-personalization to the power of user-generated content, learn how to build long-term relationships with your audience and unlock the secrets to success in the ever-shifting digital landscape.
Freshworks Rethinks NoSQL for Rapid Scaling & Cost-Efficiency
Freshworks creates AI-boosted business software that helps employees work more efficiently and effectively. Managing data across multiple RDBMS and NoSQL databases was already a challenge at their current scale. To prepare for 10X growth, they knew it was time to rethink their database strategy. Learn how they architected a solution that would simplify scaling while keeping costs under control.
GNSS spoofing via SDR (Criptored Talks 2024)
In the realm of cybersecurity, offensive security practices act as a critical shield. By simulating real-world attacks in a controlled environment, these techniques expose vulnerabilities before malicious actors can exploit them. This proactive approach allows manufacturers to identify and fix weaknesses, significantly enhancing system security.
This presentation delves into the development of a system designed to mimic Galileo's Open Service signal using software-defined radio (SDR) technology. We'll begin with a foundational overview of both Global Navigation Satellite Systems (GNSS) and the intricacies of digital signal processing.
The presentation culminates in a live demonstration. We'll showcase the manipulation of Galileo's Open Service pilot signal, simulating an attack on various software and hardware systems. This practical demonstration serves to highlight the potential consequences of unaddressed vulnerabilities, emphasizing the importance of offensive security practices in safeguarding critical infrastructure.
Azure API Management to expose backend services securely
How to use Azure API Management to expose backend service securely
Choosing The Best AWS Service For Your Website + API.pptx
Have you ever been confused by the myriad of choices offered by AWS for hosting a website or an API?
Lambda, Elastic Beanstalk, Lightsail, Amplify, S3 (and more!) can each host websites + APIs. But which one should we choose?
Which one is cheapest? Which one is fastest? Which one will scale to meet our needs?
Join me in this session as we dive into each AWS hosting service to determine which one is best for your scenario and explain why!
Programming Foundation Models with DSPy - Meetup Slides
Prompting language models is hard, while programming language models is easy. In this talk, I will discuss the state-of-the-art framework DSPy for programming foundation models with its powerful optimizers and runtime constraint system.
How to Interpret Trends in the Kalyan Rajdhani Mix Chart.pdf
A Mix Chart displays historical data of numbers in a graphical or tabular form. The Kalyan Rajdhani Mix Chart specifically shows the results of a sequence of numbers over different periods.
Public CyberSecurity Awareness Presentation 2024.pptx
Cyber security awareness slides for a busisness by TreeTop Security
Skybuffer AI: Advanced Conversational and Generative AI Solution on SAP Busin...
Skybuffer AI, built on the robust SAP Business Technology Platform (SAP BTP), is the latest and most advanced version of our AI development, reaffirming our commitment to delivering top-tier AI solutions. Skybuffer AI harnesses all the innovative capabilities of the SAP BTP in the AI domain, from Conversational AI to cutting-edge Generative AI and Retrieval-Augmented Generation (RAG). It also helps SAP customers safeguard their investments into SAP Conversational AI and ensure a seamless, one-click transition to SAP Business AI.
With Skybuffer AI, various AI models can be integrated into a single communication channel such as Microsoft Teams. This integration empowers business users with insights drawn from SAP backend systems, enterprise documents, and the expansive knowledge of Generative AI. And the best part of it is that it is all managed through our intuitive no-code Action Server interface, requiring no extensive coding knowledge and making the advanced AI accessible to more users.
leewayhertz.com-AI in predictive maintenance Use cases technologies benefits ...
Predictive maintenance is a proactive approach that anticipates equipment failures before they happen. At the forefront of this innovative strategy is Artificial Intelligence (AI), which brings unprecedented precision and efficiency. AI in predictive maintenance is transforming industries by reducing downtime, minimizing costs, and enhancing productivity.
Recently uploaded (20)
Your One-Stop Shop for Python Success: Top 10 US Python Development Providers
Your One-Stop Shop for Python Success: Top 10 US Python Development Providers
Digital Banking in the Cloud: How Citizens Bank Unlocked Their Mainframe
Digital Banking in the Cloud: How Citizens Bank Unlocked Their Mainframe
Building Production Ready Search Pipelines with Spark and Milvus
Building Production Ready Search Pipelines with Spark and Milvus
Driving Business Innovation: Latest Generative AI Advancements & Success Story
Driving Business Innovation: Latest Generative AI Advancements & Success Story
Let's Integrate MuleSoft RPA, COMPOSER, APM with AWS IDP along with Slack
Let's Integrate MuleSoft RPA, COMPOSER, APM with AWS IDP along with Slack
SAP S/4 HANA sourcing and procurement to Public cloud
SAP S/4 HANA sourcing and procurement to Public cloud
Digital Marketing Trends in 2024 | Guide for Staying Ahead
Digital Marketing Trends in 2024 | Guide for Staying Ahead
Freshworks Rethinks NoSQL for Rapid Scaling & Cost-Efficiency
Freshworks Rethinks NoSQL for Rapid Scaling & Cost-Efficiency
Overcoming the PLG Trap: Lessons from Canva's Head of Sales & Head of EMEA Da...
Overcoming the PLG Trap: Lessons from Canva's Head of Sales & Head of EMEA Da...
Azure API Management to expose backend services securely
Azure API Management to expose backend services securely
Choosing The Best AWS Service For Your Website + API.pptx
Choosing The Best AWS Service For Your Website + API.pptx
Programming Foundation Models with DSPy - Meetup Slides
Programming Foundation Models with DSPy - Meetup Slides
How to Interpret Trends in the Kalyan Rajdhani Mix Chart.pdf
How to Interpret Trends in the Kalyan Rajdhani Mix Chart.pdf
Public CyberSecurity Awareness Presentation 2024.pptx
Public CyberSecurity Awareness Presentation 2024.pptx
Skybuffer AI: Advanced Conversational and Generative AI Solution on SAP Busin...
Skybuffer AI: Advanced Conversational and Generative AI Solution on SAP Busin...
leewayhertz.com-AI in predictive maintenance Use cases technologies benefits ...
leewayhertz.com-AI in predictive maintenance Use cases technologies benefits ...
What is Power Quality?
- 10. Service Entrance Gear Utility Source A B C fault
- 14. Source: EPRI, An Assessment of Distribution System Power Quality, Vol. 2: Statistical Summary Report. Palo Alto, CA. EPRI TR-106294-V2 (May 1996)
- 16. Device % Nominal Voltage Ride-Through Time Contactors 43-49% 2 cycles Relays 78% < 1 cycle DC Power Supplies 70% 9.2 cycles PLC’s 47% 37 cycles Regulating Ballasts 65% Varies ASD’s 70% 2 cycles
- 20. Device Possible Solution Result Contactors & Relays Hold-in Circuit Improved performance up to 75% Sags PLC’s PQ Resistant Programming Improved performance up to protection limits ASD Local Ride-Thru Device Improved performance up to 60 % Sags UPS Local Ride-Thru Device Full sag protection
- 21. One PD for each XFMR One PD for 3 XFRM’s A B C fault
- 24. Critical Load Utility Input Output Input Bypass PES Isolation transformer Up to (4) power modules System control AC caps Battery Battery charger AC inverter
- 25. Voltage Sag red = supply voltage; blue = load voltage
- 26. Critical load Output Input Bypass Main container Isolation transformer Up to (8) power modules Battery New or existing back-up generator system Utility input AC gen Diesel, Natural Gas or Turbine Engine Diesel engine Power- Electronic Switch Battery charger AC inverter System control AC caps Transfer switch
Editor's Notes
- The average power quality in the U.S. was documented in a two-year (1995-1996) study by the Electric Power Research Institute (EPRI). This histogram shows the statistical average performance a user can expect. It shows the average monthly number of events, in terms of voltage sags and outages. As you can see, most sites can expect at least one disruption of some type every few months. The solutions that we will discuss can protect critical loads from all the events noted.
- Metal-enclosed switchgear allows protection of each individual circuit instead of group protection.
- Metal-enclosed switchgear allows protection of each individual circuit instead of group protection.
- These small units come in four sizes as shown on the previous slide. This shows the single-line diagram for a 1250 kVA system at 480 volts. In this example, the PES and circuit breakers are rated at 1,600 amps.
- This graph shows an actual 25% sag in utility voltage being corrected by the PureWave UPS.
- The system can be combined with a new or existing generator to make a “seamless” power system. When combined with a backup generator, the PureWave UPS will ride-through sags and very short outages ( up to 2 seconds) without sending a signal to start the generator. Once the outage exceeds 2 seconds, the start command is sent to the generator, the generator reaches rated speed in about 6-10 seconds, and the transfer switch “transfers” to the generator position. The PureWave “sync” to the generator and ramps the critical load over to the generator in a “soft load” method. A typical diesel generator can accept load at about one megawatt every 3 seconds. Therefore, total transfer of a two megawatt system load from outage to running on a generator takes about 15 seconds .
- Switchgear Options by S&C Electric Company 05/10/11 Presented to Tri-City Electric on February 17, 2005