BS 142-4.1(1984) : 1984
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
ELECTRICAL PROTECTION RELAYS - REQUIREMENTS FOR MULTI-INPUT ENERGIZING QUANTITY RELAYS - SPECIFICATION FOR BIASED (PERCENTAGE) DIFFERENTIAL RELAYS
Hardcopy , PDF
15-08-1997
English
01-01-1984
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Foreword
Committees responsible
Specification
Subsection one. General
1 Scope
2 Definitions
Subsection two. Performance
3 Characteristic values
4 Limits of the operative range of the auxiliary
energizing quantities
5 Operation and accuracy
6 Thermal requirements
7 Rated burden
8 Mechanical classification
9 Construction
10 Contact performance
11 Marking and data
Subsection three. Tests
12 General
13 Tests related to accuracy and operating
characteristics
14 Tests for performance with through current
15 Insulation tests
16 Thermal tests
17 Mechanical tests
18 High-frequency disturbance test
Appendices
A Recommended methods of presenting relay
characteristics and performance
B Recommended method of measuring harmonic restraint
characteristics
Tables
1 Reference conditions and test tolerances of
influencing quantities and factors
2 Limits of the nominal ranges of influencing
quantities and factors
Figures
1 Test circuits for checking operating characteristics
and associated accuracies
2 Operating characteristic under reference conditions
3 Operating time under reference conditions
4 Harmonic restraint characteristics
Sets out the performance conditions for the relays and parameters whose values the manufacturer has to state. Suggests ways to present the properties and performance of these relays. Relevant to relays designed to discover faults, especially in a.c. generators, motors and transformers. Does not apply, however, to relays designed for busbar protection, or to current differential relays.
| Committee |
GEL/5
|
| DocumentType |
Standard
|
| Pages |
12
|
| PublisherName |
British Standards Institution
|
| Status |
Withdrawn
|
| Standards | Relationship |
| IEC 60255-13:1980 | Similar to |
| BS 142-2.2(1982) : LATEST | ELECTRICAL PROTECTION RELAYS - REQUIREMENTS FOR THE PRINCIPAL FAMILIES OF PROTECTION RELAYS - SPECIFICATION FOR GENERAL REQUIREMENTS FOR MEASURING RELAYS USED FOR PROTECTION |
| BS 5992-3:1980 | Electrical relays Specification for the insulation testing of electrical relays |
| BS 142-1.2(1982) : 1982 | ELECTRICAL PROTECTION RELAYS - INFORMATION AND REQUIREMENTS FOR ALL PROTECTION RELAYS - SPECIFICATION FOR CONTACT PERFORMANCE |
| BS 142-1.1(1982) : 1982 | ELECTRICAL PROTECTION RELAYS - INFORMATION AND REQUIREMENTS FOR ALL PROTECTION RELAYS - GLOSSARY OF PROTECTION RELAY TERMS |
| BS 5992-1:1980 | Electrical relays Specification for contact performance of electrical relays |
| BS 142-2.3(1984) : LATEST | ELECTRICAL PROTECTION RELAYS - REQUIREMENTS FOR THE PRINCIPAL FAMILIES OF PROTECTION RELAYS - SPECIFICATION FOR THERMAL ELECTRICAL RELAYS |
| BS 142-0:1982 | Electrical protection relays. General introduction and list of Parts |
| BS 142-1.3(1982) : 1982 | ELECTRICAL PROTECTION RELAYS - INFORMATION AND REQUIREMENTS FOR ALL PROTECTION RELAYS - SPECIFICATION FOR INSULATION TESTING |
| BS 142-1.4(1983) : 1983 | ELECTRICAL PROTECTION RELAYS - INFORMATION AND REQUIREMENTS FOR ALL PROTECTION RELAYS - SPECIFICATION FOR THE HIGH-FREQUENCY DISTURBANCE TEST FOR STATIC RELAYS |
| IEC 60255-13:1980 | Electrical relays - Part 13: Biased (percentage) differential relays |
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