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SR745 TRANSFORMER MANAGEMENT RELAY

What is my take-home:

How to correctly install, configure and test the SR745 Transformer Management Relay. Using computer and the front panel, Creating FlexLogic equations to control the SR745 s contact outputs, configuring and test the SR745 protective elements and using simulation software and diagnostic tools such as the Waveform Capture and Event Log.


Suggested agenda


Day 1

Basic Transformer theory

Reasons for Transformer failures

Tap changers and it's faults

CT considerations for Transformer protection

CT types 'P' amd 'M'

Introduction to the GE Multilin SR745 Transformer Management Relay

SR745 specifications

Hardware overview, options and ordering

Mechanical installation and wiring

EnerVistaTM Software Lab

Establishing communication to the relay

Loading and saving settings files

SR745 setup Lab

System Setup

Digital Inputs and Outputs

Percent Differential protection

Magnitude Differential protection

 

Instantaneous Differential protection

Transformer parallel Starting considaration

Transformer parallel Loading considaration

Transformer FRA testing

Day 2

Faults analysis and simulationtools

Percent Differential

Phase Overcurrent

Under/Overfrequency

Overexcitation

Actual Values

Status and Metering

Event Recorder, Trending and Waveform Capture

Introduction to FlexLogic

Gates: AND, NAND, OR, NOR, XOR, NOT

FlexLogic Lab

Virtual Inputs

Contact and Virtual Outputs

FlexLogic Timers

Load shedding

The SR745 memory map and user memory map

 

 
Tuesday, November 21, 2017
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