This document summarizes validation test cases performed by Operation Technology to verify the accuracy of load flow, short-circuit, arc flash, motor acceleration, harmonics, and transient stability simulations in ETAP. It describes two load flow comparison cases where ETAP results were compared to published examples and found to have less than 1% difference in bus voltages and power flows. It also lists several other test cases performed for different ETAP modules and functionality. The document is subject to internal and external audits as part of OTI's quality assurance program.
�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.
This document discusses optimal power flow (OPF) analysis, which determines optimal settings for control variables like generator outputs and transformer taps to minimize objectives like power losses while satisfying operating constraints. The key aspects covered include: the differences between standard load flow and OPF; examples of optimization problems; common objective functions and control variables used in OPF; and the use of an OPF study case editor to set up optimization problems.
The document discusses relay coordination and fault calculation. It describes how proper coordination of relay settings is important for system reliability and selectivity. The author presents different coordination techniques, such as current graded, time graded, and both current and time graded. Fault calculation methods including per unit and MVA methods are demonstrated through examples. Software features for graphical modeling, calculation, curve plotting, and setting sheets are overviewed to enable coordination studies.
Digital transformer protection systemsmichaeljmack
The document discusses Beckwith's digital transformer protection systems. The systems provide:
1) Software that adapts to any transformer winding or CT configuration to provide differential protection for up to 4 windings.
2) A full complement of protective functions including metering, oscillography, and communication capabilities.
3) User-friendly software for configuring, monitoring, and analyzing the protection systems. The software facilitates commissioning and fault diagnosis.
The document provides an overview of ETAP software for modeling AC power systems. It describes features for building a one-line diagram using auto-build and auto-connect functions. It also discusses modeling elements, running load flow analysis, creating multi-dimensional databases with study conditions and configurations, and using engineering libraries. The document uses examples to demonstrate creating a simple project, adding generators, composite networks, and circuit breakers. It also covers user access management and different types of circuit arrangements that can be modeled in ETAP.
�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.
�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.
This document discusses optimal power flow (OPF) analysis, which determines optimal settings for control variables like generator outputs and transformer taps to minimize objectives like power losses while satisfying operating constraints. The key aspects covered include: the differences between standard load flow and OPF; examples of optimization problems; common objective functions and control variables used in OPF; and the use of an OPF study case editor to set up optimization problems.
The document discusses relay coordination and fault calculation. It describes how proper coordination of relay settings is important for system reliability and selectivity. The author presents different coordination techniques, such as current graded, time graded, and both current and time graded. Fault calculation methods including per unit and MVA methods are demonstrated through examples. Software features for graphical modeling, calculation, curve plotting, and setting sheets are overviewed to enable coordination studies.
Digital transformer protection systemsmichaeljmack
The document discusses Beckwith's digital transformer protection systems. The systems provide:
1) Software that adapts to any transformer winding or CT configuration to provide differential protection for up to 4 windings.
2) A full complement of protective functions including metering, oscillography, and communication capabilities.
3) User-friendly software for configuring, monitoring, and analyzing the protection systems. The software facilitates commissioning and fault diagnosis.
The document provides an overview of ETAP software for modeling AC power systems. It describes features for building a one-line diagram using auto-build and auto-connect functions. It also discusses modeling elements, running load flow analysis, creating multi-dimensional databases with study conditions and configurations, and using engineering libraries. The document uses examples to demonstrate creating a simple project, adding generators, composite networks, and circuit breakers. It also covers user access management and different types of circuit arrangements that can be modeled in ETAP.
�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.
The document discusses busbar protection, including the need for busbar protection, types of busbar protections like high impedance, medium impedance and low impedance protections. It describes the requirements of busbar protection like short tripping time and stable operation during external faults. The document discusses different busbar arrangements and applications of numerical busbar protection systems like RADSS. It provides examples of busbar protection schemes for different bus configurations. The document also includes excerpts from technical manuals providing recommendations on busbar protection in substations.
The document discusses ETAP data exchange and GIS integration capabilities. It describes features like import/export of data, synchronization, error checking and mapping between ETAP elements and external data. The interface involves importing elements and connections from external projects into ETAP using XML. It allows one-way then two-way synchronization of data. GIS integration allows mapping of GIS equipment to ETAP, displaying analysis results on maps, and exchanging data between ETAP and GIS formats for reduced data entry and system studies.
This document provides guidance on setting calculations for transformer differential protection. It discusses examining CT performance, calculating winding "tap" values, and determining pickup points for the 87T, 87H, and 87GD elements. Key steps include checking CT and relay ratings, selecting tap settings, setting the 87T minimum pickup and slope settings, setting harmonic restraint values, and setting the 87H unrestrained high set differential pickup and delay. The goal is to provide high-speed protection while avoiding misoperation during conditions like inrush current.
This document discusses transformer sizing methods in ETAP software based on industry standards. It describes how ETAP considers factors like cooling type, altitude, temperature, load variation, and impedance requirements to calculate the required transformer MVA size. The sizing results section shows the required size along with the next standard larger and smaller sizes. The ratings are automatically updated when clicking buttons in the transformer rating page. The document also covers unit transformer sizing in ETAP to optimize tap settings considering voltage variation and auxiliary loads.
Este documento proporciona ejemplos de cálculos de ajustes de protección contra sobrecorriente para varios motores en un sistema eléctrico. Se calculan los ajustes para relés térmicos y interruptores asociados a motores de 50 HP, 75 HP y 200 HP, incluyendo la corriente de ajuste, la clase y la curva de tiempo. El objetivo es proteger los motores contra daños por sobrecorriente ajustando correctamente los dispositivos de protección.
This document provides guidance for carrying out pre-commissioning checks and tests for switchyard equipment at Power Grid Corporation of India Ltd. It outlines the constitution and responsibilities of the commissioning team, general safety procedures, documentation requirements, and pre-commissioning formats for recording test results. Specific guidance is provided for transformers, reactors, and other switchyard equipment such as circuit breakers, current transformers, surge arresters, and more. The aim is to ascertain the correctness and completeness of installation and healthiness of equipment before charging.
The document discusses protection and coordination of electrical equipment. It covers objectives like human safety, equipment protection, system protection and selectivity. It describes various protection types like overcurrent, differential and distance protection. It also discusses coordination techniques like time-current curves and provides examples of protective devices for low voltage equipment like circuit breakers, fuses and motors.
Voltages and currents present at the generator's rated voltage and current are provided as examples. Sample relay setting calculations are shown for generator protection elements including 59N neutral overvoltage, 27TN third harmonic undervoltage, 46 negative sequence overcurrent, and coordination between protective devices. Formulas for calculating voltage and current settings from generator nameplate data are demonstrated.
Abt meter, Availability Tariff Availability Tariff, particularly in the Indian context, stands for a rational tariff structure for power supply from generating stations, on a contracted basis.
This document provides guidelines for overcurrent protection and coordination settings for industrial equipment such as transformers, buses, feeders, and motors above 600V. It outlines typical recommended pickup and time delay settings as rules of thumb for phase and ground overcurrent relays protecting this equipment. Care must be taken to properly coordinate settings between protective devices to prevent unintended tripping and ensure equipment is protected against damage from faults.
- Transmission line faults are mainly transient faults caused by lightning or persistent faults from downed lines.
- Distance protection relies on measuring the impedance between the relay and the fault to determine the fault location and operate selectively.
- Distance relays divide the line into zones and use different impedance thresholds and time delays for each zone to coordinate with protection on adjacent line sections.
Tutorial on Distance and Over Current ProtectionSARAVANAN A
Contents
• Protection Philosophy of ERPC
• Computation of Distance Relay Setting
• System Study to Understand Distance Relay
Behaviour
• DOC and DEF for EHV system
This chapter introduces the project, which is to create an advanced user guide for the ETAP software to analyze power system protection designs. The guide will explain how to create a one-line diagram, configure protection equipment, perform fault and short circuit analysis. The objectives are to help engineers learn and apply ETAP, while the constraints include completing all tasks by the deadline and within budget.
This document discusses transformer overcurrent protection calculations and settings. It provides information on:
1. Coordination principles for transformer protection and examples of typical protection zones for different fault locations.
2. Guidelines for setting instantaneous and time-overcurrent relays to ensure selective coordination, including maintaining coordination intervals.
3. Calculations for determining short circuit currents and relay settings for different transformer configurations, including delta-wye transformers. Thermal and mechanical withstand curves for different transformer categories are also presented.
El documento describe el módulo STAR del programa ETAP, que permite realizar estudios de coordinación de protecciones. Explica que ETAP es un programa de análisis transitorio que incluye el módulo STAR para coordinación de protecciones. Luego detalla los elementos requeridos como motores, transformadores, cables, dispositivos de medición y protección, así como las opciones para configurar cada elemento en el módulo STAR. Finalmente indica las funciones del módulo STAR como crear gráficos de tiempo-corriente, correr nive
1) The document discusses interlocking, inter-tripping, and protection philosophies for electrical equipment to prevent unintended operations. Integral interlocks and trapped key interlocks are described that prevent certain operations unless other devices are in the proper position.
2) Potential barriers to interlocking different types of equipment are explored, such as indoor vs outdoor apparatus and distance between devices.
3) The importance of safety locks that allow operators to secure equipment while working is emphasized.
This document discusses relays, including their basic components, design, operation, applications, advantages, and disadvantages. Relays are electrical devices that use electromagnets to open or close circuits. They have a coil, armature, contacts, and frame. When voltage is applied to the coil, it creates a magnetic field that moves the armature to open or close the contacts. Relays allow low power circuits to control high power circuits and are used for protection, regulation, and auxiliary functions in power systems.
ETAP - Arranque de motores motor startingHimmelstern
Este documento proporciona información sobre la simulación y el análisis del arranque de motores eléctricos utilizando el software ETAP. Explica los objetivos de los estudios de arranque de motores, los aspectos básicos de la simulación, los tipos de motores, los modelos de motores, la estimación de parámetros, los métodos de arranque y los ajustes de cálculo requeridos para simular con éxito el arranque de motores.
This document provides information and guidance on calculating short circuit currents in electrical distribution systems. It discusses key considerations like why short circuit calculations are important, asymmetrical components of fault current, and interrupting ratings. It then describes different methods for calculating 3-phase and 1-phase short circuits, including the Ohmic, Per-Unit, Point-to-Point, and computer software methods. Tables of component impedance data are also included to support the calculations. The goal is to determine fault levels to ensure proper protection device selection and coordination.
Transient stability analysis of the ieee 9 bus electric power system pgmslmHarish PG
The document summarizes a study analyzing the transient stability of the IEEE 9-bus electric power system model. It models and simulates various faults on the test system, analyzing fast fault clearing and load shedding to restore stability. Frequency and rate of change of frequency are used as indicators of transient stability and to calculate the optimal load shedding needed to maintain stability and frequency after a fault.
The document discusses busbar protection, including the need for busbar protection, types of busbar protections like high impedance, medium impedance and low impedance protections. It describes the requirements of busbar protection like short tripping time and stable operation during external faults. The document discusses different busbar arrangements and applications of numerical busbar protection systems like RADSS. It provides examples of busbar protection schemes for different bus configurations. The document also includes excerpts from technical manuals providing recommendations on busbar protection in substations.
The document discusses ETAP data exchange and GIS integration capabilities. It describes features like import/export of data, synchronization, error checking and mapping between ETAP elements and external data. The interface involves importing elements and connections from external projects into ETAP using XML. It allows one-way then two-way synchronization of data. GIS integration allows mapping of GIS equipment to ETAP, displaying analysis results on maps, and exchanging data between ETAP and GIS formats for reduced data entry and system studies.
This document provides guidance on setting calculations for transformer differential protection. It discusses examining CT performance, calculating winding "tap" values, and determining pickup points for the 87T, 87H, and 87GD elements. Key steps include checking CT and relay ratings, selecting tap settings, setting the 87T minimum pickup and slope settings, setting harmonic restraint values, and setting the 87H unrestrained high set differential pickup and delay. The goal is to provide high-speed protection while avoiding misoperation during conditions like inrush current.
This document discusses transformer sizing methods in ETAP software based on industry standards. It describes how ETAP considers factors like cooling type, altitude, temperature, load variation, and impedance requirements to calculate the required transformer MVA size. The sizing results section shows the required size along with the next standard larger and smaller sizes. The ratings are automatically updated when clicking buttons in the transformer rating page. The document also covers unit transformer sizing in ETAP to optimize tap settings considering voltage variation and auxiliary loads.
Este documento proporciona ejemplos de cálculos de ajustes de protección contra sobrecorriente para varios motores en un sistema eléctrico. Se calculan los ajustes para relés térmicos y interruptores asociados a motores de 50 HP, 75 HP y 200 HP, incluyendo la corriente de ajuste, la clase y la curva de tiempo. El objetivo es proteger los motores contra daños por sobrecorriente ajustando correctamente los dispositivos de protección.
This document provides guidance for carrying out pre-commissioning checks and tests for switchyard equipment at Power Grid Corporation of India Ltd. It outlines the constitution and responsibilities of the commissioning team, general safety procedures, documentation requirements, and pre-commissioning formats for recording test results. Specific guidance is provided for transformers, reactors, and other switchyard equipment such as circuit breakers, current transformers, surge arresters, and more. The aim is to ascertain the correctness and completeness of installation and healthiness of equipment before charging.
The document discusses protection and coordination of electrical equipment. It covers objectives like human safety, equipment protection, system protection and selectivity. It describes various protection types like overcurrent, differential and distance protection. It also discusses coordination techniques like time-current curves and provides examples of protective devices for low voltage equipment like circuit breakers, fuses and motors.
Voltages and currents present at the generator's rated voltage and current are provided as examples. Sample relay setting calculations are shown for generator protection elements including 59N neutral overvoltage, 27TN third harmonic undervoltage, 46 negative sequence overcurrent, and coordination between protective devices. Formulas for calculating voltage and current settings from generator nameplate data are demonstrated.
Abt meter, Availability Tariff Availability Tariff, particularly in the Indian context, stands for a rational tariff structure for power supply from generating stations, on a contracted basis.
This document provides guidelines for overcurrent protection and coordination settings for industrial equipment such as transformers, buses, feeders, and motors above 600V. It outlines typical recommended pickup and time delay settings as rules of thumb for phase and ground overcurrent relays protecting this equipment. Care must be taken to properly coordinate settings between protective devices to prevent unintended tripping and ensure equipment is protected against damage from faults.
- Transmission line faults are mainly transient faults caused by lightning or persistent faults from downed lines.
- Distance protection relies on measuring the impedance between the relay and the fault to determine the fault location and operate selectively.
- Distance relays divide the line into zones and use different impedance thresholds and time delays for each zone to coordinate with protection on adjacent line sections.
Tutorial on Distance and Over Current ProtectionSARAVANAN A
Contents
• Protection Philosophy of ERPC
• Computation of Distance Relay Setting
• System Study to Understand Distance Relay
Behaviour
• DOC and DEF for EHV system
This chapter introduces the project, which is to create an advanced user guide for the ETAP software to analyze power system protection designs. The guide will explain how to create a one-line diagram, configure protection equipment, perform fault and short circuit analysis. The objectives are to help engineers learn and apply ETAP, while the constraints include completing all tasks by the deadline and within budget.
This document discusses transformer overcurrent protection calculations and settings. It provides information on:
1. Coordination principles for transformer protection and examples of typical protection zones for different fault locations.
2. Guidelines for setting instantaneous and time-overcurrent relays to ensure selective coordination, including maintaining coordination intervals.
3. Calculations for determining short circuit currents and relay settings for different transformer configurations, including delta-wye transformers. Thermal and mechanical withstand curves for different transformer categories are also presented.
El documento describe el módulo STAR del programa ETAP, que permite realizar estudios de coordinación de protecciones. Explica que ETAP es un programa de análisis transitorio que incluye el módulo STAR para coordinación de protecciones. Luego detalla los elementos requeridos como motores, transformadores, cables, dispositivos de medición y protección, así como las opciones para configurar cada elemento en el módulo STAR. Finalmente indica las funciones del módulo STAR como crear gráficos de tiempo-corriente, correr nive
1) The document discusses interlocking, inter-tripping, and protection philosophies for electrical equipment to prevent unintended operations. Integral interlocks and trapped key interlocks are described that prevent certain operations unless other devices are in the proper position.
2) Potential barriers to interlocking different types of equipment are explored, such as indoor vs outdoor apparatus and distance between devices.
3) The importance of safety locks that allow operators to secure equipment while working is emphasized.
This document discusses relays, including their basic components, design, operation, applications, advantages, and disadvantages. Relays are electrical devices that use electromagnets to open or close circuits. They have a coil, armature, contacts, and frame. When voltage is applied to the coil, it creates a magnetic field that moves the armature to open or close the contacts. Relays allow low power circuits to control high power circuits and are used for protection, regulation, and auxiliary functions in power systems.
ETAP - Arranque de motores motor startingHimmelstern
Este documento proporciona información sobre la simulación y el análisis del arranque de motores eléctricos utilizando el software ETAP. Explica los objetivos de los estudios de arranque de motores, los aspectos básicos de la simulación, los tipos de motores, los modelos de motores, la estimación de parámetros, los métodos de arranque y los ajustes de cálculo requeridos para simular con éxito el arranque de motores.
This document provides information and guidance on calculating short circuit currents in electrical distribution systems. It discusses key considerations like why short circuit calculations are important, asymmetrical components of fault current, and interrupting ratings. It then describes different methods for calculating 3-phase and 1-phase short circuits, including the Ohmic, Per-Unit, Point-to-Point, and computer software methods. Tables of component impedance data are also included to support the calculations. The goal is to determine fault levels to ensure proper protection device selection and coordination.
Transient stability analysis of the ieee 9 bus electric power system pgmslmHarish PG
The document summarizes a study analyzing the transient stability of the IEEE 9-bus electric power system model. It models and simulates various faults on the test system, analyzing fast fault clearing and load shedding to restore stability. Frequency and rate of change of frequency are used as indicators of transient stability and to calculate the optimal load shedding needed to maintain stability and frequency after a fault.
This document discusses short-circuit calculations and selective coordination for electrical systems. It explains that short-circuit studies are required by the National Electrical Code to properly size overcurrent protection devices and ensure system coordination. The document provides guidance on calculating available short-circuit current values at different points in a system using the point-to-point method, which accounts for sources of fault current and impedances of system components. It also addresses variables that affect fault current values, such as transformer impedance, motor contribution, and utility voltage tolerance.
This is the product of my company called as ETAP Energy to achieve process.This is used to check the status of the Employees perfomance and their detailed information.
The document summarizes a presentation given at the 7th International Conference on Real-Time Simulation Technologies in Montreal from June 9-12, 2014. The presentation was given by Frank Kling and Vahid Jalili-Marandi from ETAP and OPAL-RT and discussed power system generation management using ePHASORsim real-time simulation software and ETAP's automatic generation control toolbox. The presentation included an introduction, information about ETAP and OPAL-RT, a demonstration of an end-to-end real-time simulation using the two softwares, and a question/answer session.
Analysis of Transformer Loadings and Failure Rate in Onitsha Electricity Dist...Dr. Hachimenum Amadi
This study analyzed transformer loadings and failure rates in the Onitsha electricity distribution network in Nigeria from 2011-2015. Electrical data from the network was simulated using ETAP software to determine transformer loadings, while questionnaires assessed failure rates. The findings showed an average transformer failure rate of 11.7% during the study period, higher than rates in developed countries. Major causes of failure included insulation issues (24.2%), overloading (22.5%), and inadequate maintenance (16.4%). The Army Barracks substation had the highest failure rate of 23.8%. The study recommends installing more transformers, using high quality transformers, balancing loads, and improving maintenance to increase reliability.
Analyses and monitoring of 132 k v grid using etap softwareArslan Sajjad
This research paper has been written by Rana A. Jabbar Khan, Muhammad Junaid and Muhammad Mansoor Asgher who belong to Rachna College of Engineering and Technology, Gujranwala, Pakistan.
Transient stability analysis and enhancement of ieee 9 bus system ecij
System stability study is the important parameter of economic, reliable and secure power system planning and operation. Power system studies are important during the planning and conceptual design stages of the project as well as during the operating life of the plant periodically. This paper presents the power system stability analysis for IEEE- 9 bus test system. The fault is created on different busses and transient stability is analyzedfor different load and generation conditions. The critical clearing time (CCT) is calculated by
using time domain classical extended equal area criterion method. The system frequency and voltage variation is observed for different fault locations and CCT. The IEEE-9 bus test system is simulated and stability is analyzed on ETAP software
GSM Based Wireless Load-Shedding Management System for Non Emergency ConditionEditor IJMTER
In that papers, most of us current a new cost-effective wireless allocated fill shedding
technique for non-emergency scenarios. Throughout electric power transformer destinations
wherever SCADA technique can't be utilized, your suggested remedy offers a realistic choice that
will includes the usage of microcontrollers as well as recent GSM commercial infrastructure in order
to deliver first alert SMS communications in order to customers counseling them to proactively
lessen their particular electric power usage prior to technique capacity can be attained as well as stepby-step electric power shutdown takes place. Some sort of story verbal exchanges process as well as
message arranged are invented to deal with your messaging between the transformer web sites, the
spot that the microcontrollers are situated as well as the spot that the sizes occur, as well as the key
control web page the spot that the repository server can be organized. Furthermore, the machine
posts alert communications towards the end-users mobile products which have been utilized since
verbal exchanges terminals. The system has become put in place as well as tried by using distinct
experimental effects.
Under frequency load shedding for energy management using anfis case studyIAEME Publication
The document discusses under frequency load shedding (UFLS) techniques for power system stability and energy management. It describes conventional UFLS methods and their limitations. It then proposes using an adaptive neuro-fuzzy inference system (ANFIS) to determine the optimal amount of load to shed in response to disturbances. The ANFIS approach is tested on an Indian power grid case study and shown to more accurately determine the required load shedding compared to conventional techniques. Simulation results demonstrate the ANFIS controller's ability to restore frequency within acceptable limits after disturbances while minimizing excess load shedding.
Automtaic Cyclic Load shedding in Distribution systemrajani51
This document presents a project on implementing automatic cyclic load shedding in a distribution system. It discusses the need for load shedding to balance power supply and demand. An intelligent load shedding approach is proposed that continuously monitors power sources and dynamically calculates load to shed based on priority. A block diagram of the system includes sections for distribution, power supply, relays, microcontroller, and loads. The project aims to develop a faster load shedding system using a microcontroller that can selectively remove loads. Future work involves integrating SMS commands to reduce human involvement in the load shedding process.
This project presents a new strategy for load shedding with the aim of providing the consumers with the benefit of using high priority loads of their choice, even when load shedding is done.
A simple low cost bidirectional Power Line Communication (PLC) system is utilized to control and monitor the loads of consumer.
auto matic load shedding control for substationbishow kandel
This document describes an automatic power supply control system project that was developed to help address Nepal's electricity problems by implementing accurate load shedding. The system uses a microcontroller to automatically switch loads on and off according to a programmed schedule to eliminate unnecessary load shedding and ensure a reliable supply. It displays the location and status of load shedding to improve response times and decision making. The document outlines the components, methodology, benefits, and limitations of the automated load shedding system.
6th ed solution manual---fundamentals-of-heat-and-mass-transferRonald Tenesaca
This document contains 10 problems related to heat transfer by conduction. Each problem provides known information such as materials, dimensions, temperatures, and heat transfer rates. The problems then ask the reader to find unknown values like heat fluxes, surface temperatures, or thicknesses using Fourier's Law of heat conduction and assumptions of one-dimensional and steady-state heat transfer. The problems cover a variety of applications including insulation, walls, windows, refrigeration, and cooking.
IRJET- Optimum Design of PSO based Tuning using PID Controller for an Automat...IRJET Journal
This document discusses using particle swarm optimization (PSO) to tune the parameters of a PID controller for an automatic voltage regulator (AVR) system. The goal is to improve the system's transient performance by minimizing overshoot and steady state error. PSO is applied to optimize the proportional, integral, and derivative parameters of the PID controller. Simulation results show the PSO-tuned PID controller provides significantly better control of the AVR system compared to a traditionally tuned PID controller. The tuned controller gives faster response, lower overshoot, and improved stability when subjected to disturbances and parameter variations.
IRJET- Failure Mode and Effect Analysis (FMEA) – A Case Study in Manufacturin...IRJET Journal
This document describes a case study applying Failure Mode and Effects Analysis (FMEA) to assess the reliability of a 2.3MW wind turbine system. The study identifies 11 sub-assemblies of the turbine and analyzes potential failure modes and their effects. Severity, occurrence, and detection ratings are assigned to calculate risk priority numbers. The results show the drive train having the highest RPN, indicating relatively lower reliability. The study demonstrates FMEA as an effective early-stage reliability analysis tool for wind turbines. It is suggested that comparing FMEA predictions to field failure data could help validate and refine the analysis.
The document summarizes laboratory tests conducted by EPRI to evaluate the performance of a new high-efficiency synchronous reluctance motor and drive system. Key findings from the tests include:
1) The system achieved efficiencies of up to 93.6% at full load, higher than a traditional induction motor and drive system.
2) Noise levels and bearing temperatures were well below standards.
3) Power quality measures like harmonic distortion were within expected ranges.
4) The new motor and drive solution shows potential to help utilities meet efficiency goals and provide energy-efficient options for end users.
IRJET- Analysis of Emission Data by using Testbed for Euro VI NormsIRJET Journal
This document discusses analyzing engine emissions using a testbed setup to evaluate compliance with Euro VI emission standards. It describes the components of a typical testbed, including sensors to measure engine performance and emissions. Two common emission test cycles are described: the World Harmonized Steady State Cycle (WHSC) which evaluates engines at steady speeds and loads, and the World Harmonized Transient Cycle (WHTC) which uses transient speed and load conditions to better represent real-world driving. The document emphasizes the need to reduce emissions like NOx, PM, CO and HC to maintain air quality and protect the environment.
Enhanced Skewed Load and Broadside Power Reduction in Transition Fault TestingIJERA Editor
This Paper Proposes the T-algorithm technique to optimize the testing Skewed Load and Broadside architecture. And the architecture used to the compare the test pattern results. In this architecture, T-algorithm used to optimize the testing architecture. This architecture compare the test pattern output for the required any type of combinational architecture. The optimization process mainly focused by gate optimization for secure architecture. The proposed system to use the T-algorithm, to optimize the testing clocking level for the required test patterns. This technique to replace the flip flop and the mux arrangement. To reduce the flip flops in Skewed Load architecture. And to develop the accuracy for testing architecture. The proposed system consists of the secure testing architecture and includes the XOR-gate architecture. So the modification process applied by the Broadside and over all Skewed Load architecture. The proposed technique to check the scanning results for the testing process. The testing architecture mainly used to the error attack for the scanning process and the scanning process work with any type of testing architecture. The scanning process to be secure using the T-algorithm for the Skewed Load architecture. And to develop the testing process for the fault identification process. The diagnosis technique to detect error for the scanning process in any type combinational architecture. The T-algorithm used to reduce the circuit complexity for the testing architecture and the testing architecture used to reduce the delay level. And the future process, this technique used to reduce the gate level for the sticky comparator architecture and to modify the clocking function for the testing process. This technique to develop the accuracy level for the testing process compare to the present methodology.
This document describes a study that generated and verified VHDL code for a modified repetitive controller to control a dynamic voltage restorer (DVR) power quality conditioner. The controller is designed to limit fault current during downstream faults and compensate for voltage sags, harmonics, and imbalances. The MATLAB HDL Coder was used to generate VHDL code from a MATLAB model of the repetitive controller. The generated code was then verified in the Modelsim simulator, demonstrating the controller design's hardware compatibility for implementation in an FPGA. The repetitive controller incorporates a feedforward term for fast response and feedback term to ensure zero steady-state error. A logic circuit detects downstream faults by monitoring load current.
ECU software abnormal behavior detection based on Mahalanobis taguchi techniqueYixin Chen
This document discusses a technique for detecting abnormal behavior in automotive ECU software using Mahalanobis distance. Vehicle driving data is recorded during tests of baseline software and played back while testing new software. Mahalanobis distance is calculated between the baseline and new software data to identify potential errors, with high distances indicating abnormal behavior. The technique was tested on electronic throttle control software, accurately detecting issues.
Hybrid Gravitational Search Flower Pollination Algorithm for Combined Economi...IRJET Journal
The document describes a new hybrid gravitational search flower pollination algorithm (GSFPA) proposed for solving the combined economic emission load dispatch (CEED) problem. The CEED problem aims to minimize fuel costs and emission levels simultaneously while meeting demand. The GSFPA uses gravitational search to determine step sizes in the levy flight mechanism of flower pollination algorithm. Test results on IEEE 14 bus and 39 bus systems show the GSFPA finds improved solutions to the CEED problem with less computational time compared to other algorithms.
IRJET- Comparative Analysis between PI and Fuzzy Controller for Speed Control...IRJET Journal
This document compares the performance of a PI controller and fuzzy logic controller for speed control of an induction motor. It first describes the v/f control method used and then provides details on the design and simulation of both controllers in MATLAB/Simulink. The PI controller design uses a closed-loop speed control approach with feedback. The fuzzy logic controller design consists of fuzzification, a rule base, decision-making, and defuzzification. Simulation results show that the fuzzy logic controller has less speed variation during load changes compared to the PI controller, indicating better performance. The document concludes that the fuzzy logic controller is more efficient for induction motor speed control.
Design for Testability in Timely Testing of Vlsi CircuitsIJERA Editor
Even though a circuit is designed error-free, manufactured circuits may not function correctly. Since the manufacturing process is not perfect, some defects such as short-circuits, open-circuits, open interconnections, pin shorts, etc., may be introduced. Points out that the cost of detecting a faulty component increases ten times at each step between prepackage component test and system warranty repair. It is important to identify a faulty component as early in the manufacturing process as possible. Therefore, testing has become a very important aspect of any VLSI manufacturing system.Two main issues related to test and security domain are scan-based attacks and misuse of JTAG interface. Design for testability presents effective and timely testing of VLSI circuits. The project is to test the circuits after design and then reduce the area, power, delay and security of misuse. BIST architecture is used to test the circuits effectively compared to scan based testing. In built-in self-test (BIST), on-chip circuitry is added to generate test vectors or analyze output responses or both. BIST is usually performed using pseudorandom pattern generators (PRPGs). Among the advantages of pseudorandom BIST are: (1) the low cost compared to testing from automatic test equipment (ATE). (2) The speed of the test, which is much faster than when it is applied from ATE. (3) The applicability of the test while the circuit is in the field, and (4) the potential for high quality of test.
This presentation highlights TESCO’s Test Equipment for a variety of needs for today’s utilities. Some of the products included are desktop meter stations, meter test boards, hot socket accessories, transformer test equipment, handheld test equipment and software.
Improving continuous process operation using data analytics delta v applicati...Emerson Exchange
The document discusses applying data analytics to improve continuous process operation. It describes developing models using process data to enable online fault detection and quality parameter prediction. A field trial was conducted on a CO2 recovery process that uses a 2-stage flash skid. The data analytics models allow operators to more quickly respond to conditions impacting process operation and quality.
IRJET- Speed Control of Induction Motors using Proposed Closed Loop V/F Contr...IRJET Journal
This document summarizes a study on speed control of three-phase induction motors using a proposed closed-loop volts/hertz (V/F) control scheme. The study developed a Simulink model of the control system using a proportional-integral (PI) controller to regulate motor speed. Simulation results showed that the motor speed remained constant despite changes in load, and current increased appropriately with load, demonstrating effective speed control. The proposed closed-loop V/F control with PI controller provides accurate steady-state speed control of induction motors simply and cost-effectively.
Data Volume Compression Using BIST to get Low-Power Pseudorandom Test Pattern...IJMTST Journal
This project describes a low-power (LP) programmable generator capable of producing pseudorandom test patterns with desired toggling levels and enhanced fault coverage gradient compared with the best-to-date built-in self-test (BIST)- based pseudorandom test pattern generators. It is comprised of a linear finite state machine (a linear feedback shift register or a ring generator) driving an appropriate phase shifter, and it comes with a number of features allowing this device to produce binary sequences with preselected toggling (PRESTO) activity. We introduce a method to automatically select several controls of the generator offering easy and precise tuning. The same technique is subsequently employed to deterministically guide the generator toward test sequences with improved fault-coverage-to pattern-count ratios. Furthermore, this proposes an LP test compression method that allows shaping the test power envelope in a fully predictable, accurate, and flexible fashion by adapting the PRESTO based logic BIST (LBIST) infrastructure. The proposed architecture is extended in such that the patterns generated from PRPG is gone through CUT and then to TRA to perform ATE.
Advancing VLSI Design Reliability: A Comprehensive Examination of Embedded De...IRJET Journal
The document summarizes research on Embedded Deterministic Test (EDT) logic insertion's impact on VLSI designs. Key findings include:
1) EDT insertion enhances test and fault coverage, but also increases the number of test patterns required.
2) There are significant shifts in fault sub-classes like untestable faults and tied cells after EDT insertion, highlighting its nuanced effects.
3) Results provide empirical evidence for designers to optimize testability by strategically integrating EDT logic.
The document discusses optimization of 3G radio networks, focusing on the RF Optimization phase. It describes the various stages of network optimization including single site verification, RF optimization of clusters of sites, parameter optimization testing, and ongoing reference route testing and analysis. The RF Optimization process involves preparing clusters and drive routes, analyzing data to identify issues, determining solutions such as antenna adjustments, implementing changes, and retesting. Analysis approaches discussed include examining cell dominance, coverage, interference, uplink coverage, pilot pollution, neighbor lists, soft handover performance, and drop calls.
Development of PLC based Transdermal Patch Evaluation SystemIRJET Journal
This document describes the development of a PLC-based system to evaluate the adhesion of transdermal drug patches. The system uses a load cell to measure the peeling force as a patch is removed from a substrate at controlled speeds by a servomotor. The PLC controls the motor and reads the load cell output to perform 180 and 90 degree peel tests according to industry standards. This allows automated testing to improve quality by maintaining consistent test parameters compared to manual methods. The system is designed to objectively measure patch adhesion strength across multiple batches over time to ensure transdermal drug delivery performance.
IRJET- Vibration Analysis and Optimization of Housing for ECU in Automobile u...IRJET Journal
The document discusses the vibration analysis and optimization of an electronic control unit (ECU) housing for an automobile. The objectives are to design and optimize the ECU housing using CATIA and finite element analysis (FEA) in ANSYS to minimize vibration. Modal and harmonic analyses are conducted on the original housing and an optimized design with added cross ribs. The natural frequencies increase and acceleration amplitude decreases in the optimized design, improving stiffness and reducing vibration compared to the original housing.
IRJET- Implementation of Ideal Stop and Go Deactivation Logic for Passeng...IRJET Journal
This document summarizes the implementation of an ideal start-stop system for passenger vehicles to reduce emissions. It discusses:
1) The need for a start-stop system to reduce emissions by shutting off the engine at standstills like traffic lights.
2) The system architecture including inputs from various vehicle systems that determine when the engine can be started or stopped.
3) The design of the start-stop coordinator including different system states and change of mind logic to restart the engine.
4) The identification of possible error cases to develop robust deactivation logic that resets the system if a fault is detected.
Similar to Etap validation cases and comparison results (20)
Comparative analysis between traditional aquaponics and reconstructed aquapon...bijceesjournal
The aquaponic system of planting is a method that does not require soil usage. It is a method that only needs water, fish, lava rocks (a substitute for soil), and plants. Aquaponic systems are sustainable and environmentally friendly. Its use not only helps to plant in small spaces but also helps reduce artificial chemical use and minimizes excess water use, as aquaponics consumes 90% less water than soil-based gardening. The study applied a descriptive and experimental design to assess and compare conventional and reconstructed aquaponic methods for reproducing tomatoes. The researchers created an observation checklist to determine the significant factors of the study. The study aims to determine the significant difference between traditional aquaponics and reconstructed aquaponics systems propagating tomatoes in terms of height, weight, girth, and number of fruits. The reconstructed aquaponics system’s higher growth yield results in a much more nourished crop than the traditional aquaponics system. It is superior in its number of fruits, height, weight, and girth measurement. Moreover, the reconstructed aquaponics system is proven to eliminate all the hindrances present in the traditional aquaponics system, which are overcrowding of fish, algae growth, pest problems, contaminated water, and dead fish.
The CBC machine is a common diagnostic tool used by doctors to measure a patient's red blood cell count, white blood cell count and platelet count. The machine uses a small sample of the patient's blood, which is then placed into special tubes and analyzed. The results of the analysis are then displayed on a screen for the doctor to review. The CBC machine is an important tool for diagnosing various conditions, such as anemia, infection and leukemia. It can also help to monitor a patient's response to treatment.
Electric vehicle and photovoltaic advanced roles in enhancing the financial p...IJECEIAES
Climate change's impact on the planet forced the United Nations and governments to promote green energies and electric transportation. The deployments of photovoltaic (PV) and electric vehicle (EV) systems gained stronger momentum due to their numerous advantages over fossil fuel types. The advantages go beyond sustainability to reach financial support and stability. The work in this paper introduces the hybrid system between PV and EV to support industrial and commercial plants. This paper covers the theoretical framework of the proposed hybrid system including the required equation to complete the cost analysis when PV and EV are present. In addition, the proposed design diagram which sets the priorities and requirements of the system is presented. The proposed approach allows setup to advance their power stability, especially during power outages. The presented information supports researchers and plant owners to complete the necessary analysis while promoting the deployment of clean energy. The result of a case study that represents a dairy milk farmer supports the theoretical works and highlights its advanced benefits to existing plants. The short return on investment of the proposed approach supports the paper's novelty approach for the sustainable electrical system. In addition, the proposed system allows for an isolated power setup without the need for a transmission line which enhances the safety of the electrical network
Batteries -Introduction – Types of Batteries – discharging and charging of battery - characteristics of battery –battery rating- various tests on battery- – Primary battery: silver button cell- Secondary battery :Ni-Cd battery-modern battery: lithium ion battery-maintenance of batteries-choices of batteries for electric vehicle applications.
Fuel Cells: Introduction- importance and classification of fuel cells - description, principle, components, applications of fuel cells: H2-O2 fuel cell, alkaline fuel cell, molten carbonate fuel cell and direct methanol fuel cells.
Software Engineering and Project Management - Introduction, Modeling Concepts...Prakhyath Rai
Introduction, Modeling Concepts and Class Modeling: What is Object orientation? What is OO development? OO Themes; Evidence for usefulness of OO development; OO modeling history. Modeling
as Design technique: Modeling, abstraction, The Three models. Class Modeling: Object and Class Concept, Link and associations concepts, Generalization and Inheritance, A sample class model, Navigation of class models, and UML diagrams
Building the Analysis Models: Requirement Analysis, Analysis Model Approaches, Data modeling Concepts, Object Oriented Analysis, Scenario-Based Modeling, Flow-Oriented Modeling, class Based Modeling, Creating a Behavioral Model.
CHINA’S GEO-ECONOMIC OUTREACH IN CENTRAL ASIAN COUNTRIES AND FUTURE PROSPECTjpsjournal1
The rivalry between prominent international actors for dominance over Central Asia's hydrocarbon
reserves and the ancient silk trade route, along with China's diplomatic endeavours in the area, has been
referred to as the "New Great Game." This research centres on the power struggle, considering
geopolitical, geostrategic, and geoeconomic variables. Topics including trade, political hegemony, oil
politics, and conventional and nontraditional security are all explored and explained by the researcher.
Using Mackinder's Heartland, Spykman Rimland, and Hegemonic Stability theories, examines China's role
in Central Asia. This study adheres to the empirical epistemological method and has taken care of
objectivity. This study analyze primary and secondary research documents critically to elaborate role of
china’s geo economic outreach in central Asian countries and its future prospect. China is thriving in trade,
pipeline politics, and winning states, according to this study, thanks to important instruments like the
Shanghai Cooperation Organisation and the Belt and Road Economic Initiative. According to this study,
China is seeing significant success in commerce, pipeline politics, and gaining influence on other
governments. This success may be attributed to the effective utilisation of key tools such as the Shanghai
Cooperation Organisation and the Belt and Road Economic Initiative.
Null Bangalore | Pentesters Approach to AWS IAMDivyanshu
#Abstract:
- Learn more about the real-world methods for auditing AWS IAM (Identity and Access Management) as a pentester. So let us proceed with a brief discussion of IAM as well as some typical misconfigurations and their potential exploits in order to reinforce the understanding of IAM security best practices.
- Gain actionable insights into AWS IAM policies and roles, using hands on approach.
#Prerequisites:
- Basic understanding of AWS services and architecture
- Familiarity with cloud security concepts
- Experience using the AWS Management Console or AWS CLI.
- For hands on lab create account on [killercoda.com](https://killercoda.com/cloudsecurity-scenario/)
# Scenario Covered:
- Basics of IAM in AWS
- Implementing IAM Policies with Least Privilege to Manage S3 Bucket
- Objective: Create an S3 bucket with least privilege IAM policy and validate access.
- Steps:
- Create S3 bucket.
- Attach least privilege policy to IAM user.
- Validate access.
- Exploiting IAM PassRole Misconfiguration
-Allows a user to pass a specific IAM role to an AWS service (ec2), typically used for service access delegation. Then exploit PassRole Misconfiguration granting unauthorized access to sensitive resources.
- Objective: Demonstrate how a PassRole misconfiguration can grant unauthorized access.
- Steps:
- Allow user to pass IAM role to EC2.
- Exploit misconfiguration for unauthorized access.
- Access sensitive resources.
- Exploiting IAM AssumeRole Misconfiguration with Overly Permissive Role
- An overly permissive IAM role configuration can lead to privilege escalation by creating a role with administrative privileges and allow a user to assume this role.
- Objective: Show how overly permissive IAM roles can lead to privilege escalation.
- Steps:
- Create role with administrative privileges.
- Allow user to assume the role.
- Perform administrative actions.
- Differentiation between PassRole vs AssumeRole
Try at [killercoda.com](https://killercoda.com/cloudsecurity-scenario/)
Introduction- e - waste – definition - sources of e-waste– hazardous substances in e-waste - effects of e-waste on environment and human health- need for e-waste management– e-waste handling rules - waste minimization techniques for managing e-waste – recycling of e-waste - disposal treatment methods of e- waste – mechanism of extraction of precious metal from leaching solution-global Scenario of E-waste – E-waste in India- case studies.