Electrical Relay Test & Maintenance

Overview

Each module deals with specific relays produced by individual manufacturers. Each lesson is divided into two parts.
A. The fundamental operating principles, typical applications and connections for the specific type of relay.
B. Illustrates typical test, including: zero check, minimum pickup, timing tests, insulation tests, and seal-in circuit tests. Preventative maintenance procedures are also reviewed.

Who Benefits:

Personnel in electric utilities involved in the operation, testing and maintenance of electric relays.

Language Availability:

English

Format:

• Video

Video Support Material:

Reproducible reference guide available.

Program Segments

Module I

Series A: Overcurrent

5901 General Electric Type IAC

5902 Westinghouse Type CO

Series B: Voltage

5905 General Electric Type IAV

5906 Westinghouse Type CV

Series C: Differential

5909 General Electric Type BDD

5910 Westinghouse Type HU

Series D: Impedance

5913 General Electric Type CEY

5914 Westinghouse Type KD

Series E: Negative Sequence

5917 General Electric Type Inc

5918 Westinghouse Type COQ

Module II

Series A: Directional Ground Overcurrent

0601 General Electric Type JBCG

0602 Westinghouse Type IRD

Series B: Phase/Ground Distance

0603 General Electric Type GCX

0604 General Electric Type GCXG