IEEE C37.103 2004

$44.96

IEEE Guide for Differential and Polarizing Relay Circuit Testing

Published By	Publication Date	Number of Pages
IEEE	2004	46

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Description

New IEEE Standard – Active. This issues concerning testing and verification of the correctness of differential and polarizing circuits are described and discussed in this guide. The intention of this guide is to help the reader to detect errors in the wiring of protective relays that might cause erroneous operations of protection systems. It is essential to follow systematic testing procedures and record the observations in a proper organized manner. The records should include documentation of all measurements and a comparison with the desired results.

PDF Catalog

PDF Pages	PDF Title
2	Title Page
5	Introduction
6	Notice to Users Participants
8	CONTENTS
10	1. Overview 1.1 Scope 1.2 Purpose 2. References
11	3. Definitions 4. Operating considerations for personnel and equipment 4.1 Primary testing 4.2 Secondary testing 4.3 Alternative to primary and secondary testing
12	4.4 Effect of opening CT circuits 4.5 CT short-circuiting devices 5. Preparatory tests 5.1 CTs
13	5.2 Wiring checks 5.3 Test switches
14	5.4 Test equipment 6. Power supplies for tests 6.1 AC sources for primary current injection tests
15	6.2 AC sources for secondary current injection tests 6.3 DC current sources for primary and secondary injection tests 6.4 Demagnetizing the core of a CT 7. Generator, motor, and reactor differential relaying 7.1 Primary current injection tests 7.2 Secondary current injection tests
18	7.3 In-service tests
19	8. Bus differential relaying 8.1 Primary current injection tests
21	8.2 Secondary current injection tests 8.3 In-service tests
22	9. Transformer differential relaying 9.1 Primary current injection tests
24	9.2 Secondary current injection tests
26	9.3 In-service tests
27	10. Potential-polarized phase relays
28	10.1 Primary current injection tests 10.2 Secondary injection tests
30	10.3 In-service tests
31	11. Potential-polarized ground relays 11.1 Voltage-circuit secondary voltage injection test
33	11.2 In-service tests
36	12. Neutral-current-polarized ground relays 12.1 Primary current injection tests—primary of all CTs accessible
37	12.2 Primary current injection tests—primary of neutral CT not accessible
39	12.3 In-service tests for current polarized relays
40	13. Tertiary current polarized ground relays
41	13.1 Primary current injection tests—tertiary CTs not accessible, breaker CTs accessible
42	13.2 In-service tests
43	Annex A (informative) Aids to differential relay load checks
46	Annex B (informative) Bibliography