Case Study - How Proactive Electrical Maintenance team saved a Power TransformerSystem Protection
Case Study - How Proactive Electrical Maintenance team saved a Power Transformer. Your valuable 10 minutes may avoid breakdown of Electrical Equipment in your plant.
Case Study - How we solved an Earth-fault (mal)Tripping that was causing comp...System Protection
Routine Maintenance and Testing of the various equipment's in the plant is one of the most important jobs, which is usually entrusted to experts. We are presenting herewith a case which makes such activities meaningful and can save the assets.
Practical handbook-for-relay-protection-engineersSARAVANAN A
The ‘Hand Book’ covers the Code of Practice in Protection Circuitry including standard lead and device numbers, mode of connections at terminal strips, colour codes in multicore cables, Dos and Donts in execution. Also, principles of various protective relays and schemes including special protection schemes like differential,
restricted, directional and distance relays are explained with sketches. The norms of protection of generators, transformers, lines & Capacitor Banks are also given.
�The sample calculations shown here illustrate steps involved in calculating the relay settings for generator protection.
�Other methodologies and techniques may be applied to calculate relay settings based on specific applications.
The protections of generator are the most complex and elaborate due to the following reasons: Generator is a large machine, connected to bus-bars. It is accompanied by unit transformers, auxiliary transformers and a bus system. ... The protection of generator should be co-ordinate with associated equipment's.
Case Study - How Proactive Electrical Maintenance team saved a Power TransformerSystem Protection
Case Study - How Proactive Electrical Maintenance team saved a Power Transformer. Your valuable 10 minutes may avoid breakdown of Electrical Equipment in your plant.
Case Study - How we solved an Earth-fault (mal)Tripping that was causing comp...System Protection
Routine Maintenance and Testing of the various equipment's in the plant is one of the most important jobs, which is usually entrusted to experts. We are presenting herewith a case which makes such activities meaningful and can save the assets.
Practical handbook-for-relay-protection-engineersSARAVANAN A
The ‘Hand Book’ covers the Code of Practice in Protection Circuitry including standard lead and device numbers, mode of connections at terminal strips, colour codes in multicore cables, Dos and Donts in execution. Also, principles of various protective relays and schemes including special protection schemes like differential,
restricted, directional and distance relays are explained with sketches. The norms of protection of generators, transformers, lines & Capacitor Banks are also given.
�The sample calculations shown here illustrate steps involved in calculating the relay settings for generator protection.
�Other methodologies and techniques may be applied to calculate relay settings based on specific applications.
The protections of generator are the most complex and elaborate due to the following reasons: Generator is a large machine, connected to bus-bars. It is accompanied by unit transformers, auxiliary transformers and a bus system. ... The protection of generator should be co-ordinate with associated equipment's.
How is power transformer protected??? This provides a basic understanding of power transformer. Furthermore, the protective relay application on power transformer is included.
�The sample calculations shown here illustrate steps involved in calculating the relay settings for generator protection.
�Other methodologies and techniques may be applied to calculate relay settings based on specific applications.
Why do Transformers Fail?
�The electrical windings and the magnetic core in a transformer are subject to a number of different forces during operation, for example:
�Expansion and contraction due to thermal cycling
�Vibration
�Local heating due to magnetic flux
�Impact forces due to through-fault current
�Excessive heating due to overloading or inadequate cooling
To sense/detect the fault occurrence and other abnormal conditions at the protected equipment/area/section.
To operate the correct circuit breakers so as to disconnect only the faulty equipment/area/section as quickly as possible, thus minimizing the damage caused by the faults.
To operate the correct circuit breakers to isolate the faulty equipment/area/section from the healthy system in the case of abnormalities like overloads, unbalance, undervoltage, etc.
To clear the fault before the system becomes unstable.
To identify distinctly where the fault has occurred.
How is power transformer protected??? This provides a basic understanding of power transformer. Furthermore, the protective relay application on power transformer is included.
�The sample calculations shown here illustrate steps involved in calculating the relay settings for generator protection.
�Other methodologies and techniques may be applied to calculate relay settings based on specific applications.
Why do Transformers Fail?
�The electrical windings and the magnetic core in a transformer are subject to a number of different forces during operation, for example:
�Expansion and contraction due to thermal cycling
�Vibration
�Local heating due to magnetic flux
�Impact forces due to through-fault current
�Excessive heating due to overloading or inadequate cooling
To sense/detect the fault occurrence and other abnormal conditions at the protected equipment/area/section.
To operate the correct circuit breakers so as to disconnect only the faulty equipment/area/section as quickly as possible, thus minimizing the damage caused by the faults.
To operate the correct circuit breakers to isolate the faulty equipment/area/section from the healthy system in the case of abnormalities like overloads, unbalance, undervoltage, etc.
To clear the fault before the system becomes unstable.
To identify distinctly where the fault has occurred.
Tracking PV module degradation using SolarPulseMachinePulse
In this case study, we have demonstrated the capability of SolarPulse to analyze numerous factors and arrive at the root cause of a problem. We have also shown how SolarPulse can be used to settle warranty claims in case of a product failure.
A Control Design reader writes: I often have diffilty tuning PID loops, especially for temperature control applications and servo-motor motion applications. If I use a temperature
controller, the auto-tune built into the device often works well if I follow the manufacturer’s
recommendations. However, if the temperature control or motion control is through a PLC
or other advanced controller, it’s often a long training process to fid the optimum coefiients for the proportional, integral and derivative of the control loop.....
I often have diffilty tuning PID loops, especially for temperature control applications and servo-motor motion applications. If I use a temperature controller, the auto-tune built into the device often works well if I follow the manufacturer’s recommendations.
This presentation describes the value of equipment health anomaly detection and diagnostic systems, such as MaintenanceOpt®, in alerting plant personnel to equipment problems and expediting problem diagnosis and remediation. Several examples are provided including high ID fan motor temperature, low oil on a fan bearing, turbine bearing vibration, and condenser air evacuation issues.
Health and safety is a major concern for entrepreneurs all around the world. Running a business involves the use of several electrical appliances (almost all businesses do). This may impose the threat of causing an injury with the appliances. So you will have to follow a few government health and safety regulations. This is to prevent practicable dangers from all systems. Portable Appliance Testing (PAT) is the process to secure electrical equipment. Health and safety is a major concern for entrepreneurs all around the world. Running a business involves the use of several electrical appliances (almost all businesses do). This may impose the threat of causing an injury with the appliances. So you will have to follow a few government health and safety regulations. This is to prevent practicable dangers from all systems. Portable Appliance Testing (PAT) is the process to secure electrical equipment.
Process Profiling: Investigation And Prediction Of Process Upsets With Advanc...Jim Cahill
2009 HART Plant of the Year Award winner Mitsubishi Chemical Corporation Uses HART Technology to Detect Abnormal Situations and Failures before they Affect the Process
http://hartcomm.org/protocol/realworld/realworld_success_mitsubishi09.html
Reyrolle 7SR54 provides protection, control and monitoring of 2 and 3 winding transformers. All transformer vector groups and earthing connections are supported.
Mastering Motor Protection with SIEMENS Reyrolle 7SR17: Safeguarding Your AssetsSystem Protection
Discover the Power of SIEMENS Reyrolle 7SR17 Rho Motor Protection Relay! 🔌🔒
In this informative video, we delve deep into the world of motor protection with the cutting-edge SIEMENS Reyrolle 7SR17 Rho numeric protection relay. With four current inputs and the option for three voltage inputs, this relay is a game-changer for safeguarding motors and their connections.
Join us as we explore the features, applications, and benefits of the 7SR17 Rho, and learn how it provides a seamless and integrated protection system to ensure the longevity and efficiency of your valuable assets.
Don't miss out on this essential guide to motor protection technology. Hit that like button, subscribe for more insightful content, and empower your engineering knowledge with SIEMENS Reyrolle 7SR17 Rho!"
AC Digital Clamp Meter KEW 2204R Overview | System ProtectionSystem Protection
The AC Digital Clamp Meter KEW 2204R is likely a tool designed for measuring electrical parameters in alternating current (AC) circuits. These meters are commonly used by electricians, technicians, and engineers for various applications.
Digital Multimeter with AC/DC Clamp Sensor KEWMATE 2012RA | System ProtectionSystem Protection
Digital Multimeter with AC/DC Clamp Sensor
KEWMATE 2012RA
• Innovative Multimeters with current measurements up to 120A AC/DC
• Unique Open Jaw technology for AC/DC current measurements
• Very compact and as reliable as a tradictional full size multimeter
A digital multimeter (DMM) is a versatile electronic instrument used to measure various electrical parameters like voltage, current, resistance, capacitance, and frequency. These meters come with a digital display that provides more accurate readings compared to analog meters.
The Kyoritsu KEW 5711 is a non-contact voltage tester used to detect the presence of AC voltage in electrical systems, outlets, cables, circuit breakers, and other live conductors. It is designed to ensure the safety of the user by alerting them to the presence of voltage without the need for physical contact.
Earth Clamp Testing with the KEW 4202 | Ultimate Tool for Earth Clamp TestingSystem Protection
Are you in need of a reliable and efficient tool for earth clamp testing? Look no further than the KEW 4202 Earth Clamp Tester. This powerful device has a wide measurement range of 0.05Ω to 1200Ω, making it suitable for a variety of applications. It also features a large, easy-to-read display and a simple, user-friendly interface, making it easy to get accurate readings quickly and efficiently.
But that's not all. The KEW 4202 also offers a number of advanced features, such as data logging and USB connectivity, which allow you to store and analyze your measurements with ease. It even has a unique "noise check" function that ensures accurate measurements in noisy environments.
Overall, the KEW 4202 is the ultimate tool for earth clamp testing, thanks to its combination of accuracy, convenience, and advanced features. Whether you're an electrician, engineer, or DIY enthusiast, this device is sure to become an essential part of your toolkit.
Kyoritsu Kew 6016 Multi-Function Tester is a premium quality product from Kyoritsu. All Kyoritsu Kew 6016 Multi-Function Tester are manufactured by using quality assured material and advanced techniques, which make them up to the standard in this highly challenging field.
Honeywell Arc Flash Personal Protection Equipment Kits are available in an ATPV rating of 40 Cal /cm2. This kit contains an arc flash coat, bib overalls, hardhat, SKBAG, and safety glasses, Optional Lift Front Hood. Sizes S, M, L, XL, 2XL are available from stock, other sizes and color available by special order. These kits meet NFPA 70E Hazard Risk Category 4.
The Honeywell Insulating Mats provide a unique solution to protect workers against electric shock across substations, transformer rooms, LT and HT control panels, electrical switch rooms for AC and DC installations, battery rooms, and generator set rooms.
Salisbury By Honeywell | 51511 Di – Electric Over ShoesSystem Protection
Salisbury’s dielectric boots are 100% waterproof and made from premium grade ozone resistant rubber. The flexible hand-layered construction includes a durable nylon lining for easy on/off. Salisbury Dielectric Footwear conforms with ASTM F1117 and is tested to ASTM F1116 at 20kV.
Salisbury By Honeywell | 4556 Voltage Detector 240V to 230kVSystem Protection
The Salisbury 4556 is a high voltage detection kit for use in applications for voltages from 240V to 230kV. It is intended for use in verifying the live or de-energized status of conductors, bus bars, and other types of exposed electrical equipment.
Putting the SPARK into Virtual Training.pptxCynthia Clay
This 60-minute webinar, sponsored by Adobe, was delivered for the Training Mag Network. It explored the five elements of SPARK: Storytelling, Purpose, Action, Relationships, and Kudos. Knowing how to tell a well-structured story is key to building long-term memory. Stating a clear purpose that doesn't take away from the discovery learning process is critical. Ensuring that people move from theory to practical application is imperative. Creating strong social learning is the key to commitment and engagement. Validating and affirming participants' comments is the way to create a positive learning environment.
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RMD24 | Debunking the non-endemic revenue myth Marvin Vacquier Droop | First ...BBPMedia1
Marvin neemt je in deze presentatie mee in de voordelen van non-endemic advertising op retail media netwerken. Hij brengt ook de uitdagingen in beeld die de markt op dit moment heeft op het gebied van retail media voor niet-leveranciers.
Retail media wordt gezien als het nieuwe advertising-medium en ook mediabureaus richten massaal retail media-afdelingen op. Merken die niet in de betreffende winkel liggen staan ook nog niet in de rij om op de retail media netwerken te adverteren. Marvin belicht de uitdagingen die er zijn om echt aansluiting te vinden op die markt van non-endemic advertising.
Memorandum Of Association Constitution of Company.pptseri bangash
www.seribangash.com
A Memorandum of Association (MOA) is a legal document that outlines the fundamental principles and objectives upon which a company operates. It serves as the company's charter or constitution and defines the scope of its activities. Here's a detailed note on the MOA:
Contents of Memorandum of Association:
Name Clause: This clause states the name of the company, which should end with words like "Limited" or "Ltd." for a public limited company and "Private Limited" or "Pvt. Ltd." for a private limited company.
https://seribangash.com/article-of-association-is-legal-doc-of-company/
Registered Office Clause: It specifies the location where the company's registered office is situated. This office is where all official communications and notices are sent.
Objective Clause: This clause delineates the main objectives for which the company is formed. It's important to define these objectives clearly, as the company cannot undertake activities beyond those mentioned in this clause.
www.seribangash.com
Liability Clause: It outlines the extent of liability of the company's members. In the case of companies limited by shares, the liability of members is limited to the amount unpaid on their shares. For companies limited by guarantee, members' liability is limited to the amount they undertake to contribute if the company is wound up.
https://seribangash.com/promotors-is-person-conceived-formation-company/
Capital Clause: This clause specifies the authorized capital of the company, i.e., the maximum amount of share capital the company is authorized to issue. It also mentions the division of this capital into shares and their respective nominal value.
Association Clause: It simply states that the subscribers wish to form a company and agree to become members of it, in accordance with the terms of the MOA.
Importance of Memorandum of Association:
Legal Requirement: The MOA is a legal requirement for the formation of a company. It must be filed with the Registrar of Companies during the incorporation process.
Constitutional Document: It serves as the company's constitutional document, defining its scope, powers, and limitations.
Protection of Members: It protects the interests of the company's members by clearly defining the objectives and limiting their liability.
External Communication: It provides clarity to external parties, such as investors, creditors, and regulatory authorities, regarding the company's objectives and powers.
https://seribangash.com/difference-public-and-private-company-law/
Binding Authority: The company and its members are bound by the provisions of the MOA. Any action taken beyond its scope may be considered ultra vires (beyond the powers) of the company and therefore void.
Amendment of MOA:
While the MOA lays down the company's fundamental principles, it is not entirely immutable. It can be amended, but only under specific circumstances and in compliance with legal procedures. Amendments typically require shareholder
RMD24 | Retail media: hoe zet je dit in als je geen AH of Unilever bent? Heid...BBPMedia1
Grote partijen zijn al een tijdje onderweg met retail media. Ondertussen worden in dit domein ook de kansen zichtbaar voor andere spelers in de markt. Maar met die kansen ontstaan ook vragen: Zelf retail media worden of erop adverteren? In welke fase van de funnel past het en hoe integreer je het in een mediaplan? Wat is nu precies het verschil met marketplaces en Programmatic ads? In dit half uur beslechten we de dilemma's en krijg je antwoorden op wanneer het voor jou tijd is om de volgende stap te zetten.
Enterprise Excellence is Inclusive Excellence.pdfKaiNexus
Enterprise excellence and inclusive excellence are closely linked, and real-world challenges have shown that both are essential to the success of any organization. To achieve enterprise excellence, organizations must focus on improving their operations and processes while creating an inclusive environment that engages everyone. In this interactive session, the facilitator will highlight commonly established business practices and how they limit our ability to engage everyone every day. More importantly, though, participants will likely gain increased awareness of what we can do differently to maximize enterprise excellence through deliberate inclusion.
What is Enterprise Excellence?
Enterprise Excellence is a holistic approach that's aimed at achieving world-class performance across all aspects of the organization.
What might I learn?
A way to engage all in creating Inclusive Excellence. Lessons from the US military and their parallels to the story of Harry Potter. How belt systems and CI teams can destroy inclusive practices. How leadership language invites people to the party. There are three things leaders can do to engage everyone every day: maximizing psychological safety to create environments where folks learn, contribute, and challenge the status quo.
Who might benefit? Anyone and everyone leading folks from the shop floor to top floor.
Dr. William Harvey is a seasoned Operations Leader with extensive experience in chemical processing, manufacturing, and operations management. At Michelman, he currently oversees multiple sites, leading teams in strategic planning and coaching/practicing continuous improvement. William is set to start his eighth year of teaching at the University of Cincinnati where he teaches marketing, finance, and management. William holds various certifications in change management, quality, leadership, operational excellence, team building, and DiSC, among others.
Business Valuation Principles for EntrepreneursBen Wann
This insightful presentation is designed to equip entrepreneurs with the essential knowledge and tools needed to accurately value their businesses. Understanding business valuation is crucial for making informed decisions, whether you're seeking investment, planning to sell, or simply want to gauge your company's worth.
Premium MEAN Stack Development Solutions for Modern BusinessesSynapseIndia
Stay ahead of the curve with our premium MEAN Stack Development Solutions. Our expert developers utilize MongoDB, Express.js, AngularJS, and Node.js to create modern and responsive web applications. Trust us for cutting-edge solutions that drive your business growth and success.
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The world of search engine optimization (SEO) is buzzing with discussions after Google confirmed that around 2,500 leaked internal documents related to its Search feature are indeed authentic. The revelation has sparked significant concerns within the SEO community. The leaked documents were initially reported by SEO experts Rand Fishkin and Mike King, igniting widespread analysis and discourse. For More Info:- https://news.arihantwebtech.com/search-disrupted-googles-leaked-documents-rock-the-seo-world/
Kseniya Leshchenko: Shared development support service model as the way to ma...Lviv Startup Club
Kseniya Leshchenko: Shared development support service model as the way to make small projects with small budgets profitable for the company (UA)
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What are the main advantages of using HR recruiter services.pdfHumanResourceDimensi1
HR recruiter services offer top talents to companies according to their specific needs. They handle all recruitment tasks from job posting to onboarding and help companies concentrate on their business growth. With their expertise and years of experience, they streamline the hiring process and save time and resources for the company.
2. Just like all other cases, we bring you one
more actual incident happened recently in
one of the Process Industry, connected with
GRID (State Utility). In our 18 years of service
to industries, we have come across many
abnormalities, incident and have resolved
them. Even we learn while solving the
issues or Tripping incidents but summation
of these many years of experience has
strengthen us to resolve this type of
incidents in time. However, this is the first
time we came across this kind of issue.
Then we asked Rare check. To change
the phase sequence of Incoming Voltage
supply in relay for all the combinations
as RYB, RBY, YRB, YBR, BYR, BRY.
To our surprise!!!!! With combination RBY,
relay contact got reset and plant was
started.
We also asked them to check with other
plant connected to GRID with same
feeders and found:
Their Motors were running in Reverse
direction and same has leads to certain
issues related to process. Adding
additional down time.
Same was issue with other plants as
well.
www.systemprotection.in +91-265-2225137
On a lighter note, to our knowledge, most of
the abnormalities, Tripping or operational
problems in Industries happens on Sunday
or Holidays only. Keeping legacy alive, this
also occurred on Sunday evening 4 PM in
the month of Feb 2019.
Here under is the summary:
It was planned shutdown from Grid side
for adding new 33 kV distribution line to
their substation. Same was informed to
all the consumers 2 weeks in advance
for this shutdown which was scheduled
for 2-3 hours in continuation.
All goes well as per schedule, Power
resumed within 2.5 hours but………….
Connected Industries failed to start.
Reason….? Unhealthy Voltage. And relay
blocked Circuit breakers to close
pertaining to Unhealthy Voltage.
Then started troubleshooting:
They checked PT supply, found healthy.
If during shutdown, any modification/s
OR Change/s made in the wiring? No,
everything was as it was.
They took all possible measures, but
waste. Relay keep issuing tripping
command.
Worried about the incident, we got
distressed call from user:
We enquired with them and asked
whether all necessary measures have
been taken.
We asked them to check in relay
configuration, but not necessarily plant
people knows it.
We even advised to reboot the relay, if in
case it may have hanged.
The problem was identified as change in
Phase sequence mistakenly by GRID side
during shutdown. We advised plant people
to keep the original wiring so that if this
happens again in future than same can be
identify and rectify.
Well, we got their appreciation as System
Protection has been involved in Selection
and Retrofitting of relays. If the plant has
been started with reverse direction more
revenue loss would have registered.
Proper Relay Selection for Equipment’s
play a key role in Protecting your plant
equipment in the best way.
The relay sensed the Phase Reversal as
unhealthy voltage and therefore, was giving
tripping commands. Under pressure,
maintenance engineer Bypassed
Undervoltage protection and charged the
panel as he was concerned about
production lost. But when Relay is at fault
you can't even change or disable setting,
and this is blessing in disguise.
Our team during annual Relay testing in
shutdown (July 2018), suggested and
enabled this setting.
We feel sorry for the other industries who
suffered due to improper relay selection.
Damage has already occurred. To avoid this
we strongly recommend, while selecting
protective relays either in Projects or
retrofitting, all the points must be
considered pertaining to protection and
process perspective.
3. CONTACT INFORMATION
301/2/306, Silverline Complex,Opposite BBC
Tower,Sayajigunj,Vadodara - 390 005,
Gujarat, India.
bdm@systemprotection.in
www.systemprotection.in
+91-265-2225137