BS 142-1.4.1:1990
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.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. Information and requirements for all protection relays. Specification for electrical disturbance tests 1 MHz burst disturbance tests
Hardcopy , PDF
15-08-1997
English
31-08-1990
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Committees responsible
National foreword
Clause
1 Scope and object
2 Definitions
2.1 Common mode voltage
2.2 Differential mode voltage
2.3 Disturbance voltage
3 1 MHz burst disturbance test
3.1 Standard test severity classes
3.2 Test conditions
3.3 Test procedure
3.4 Criteria for acceptance
Figures
1 High-frequency burst disturbance test diagram
2 Coupling circuit for 1 MHz burst disturbance test.
-Common mode between an independent circuit and
earth.
3 Coupling circuit for 1 MHz burst disturbance test.
-Common mode between an independent circuit and
all other independent circuits coupled to earth.
4a Coupling circuit for 1 MHz burst disturbance test.
-Differential mode.
4b Coupling circuit for 1 MHz burst disturbance test.
-Differential mode with inversion of the injection
direction.
Appendix
A Explanatory notes on disturbance tests for
measuring relays and protection equipment
Primarily for application to static protection relays, and acceptance criteria to be satisfied during and subsequent to the tests. Also defines test severity classes for relays and the relevant terminology.
| Committee |
PEL/95
|
| DocumentType |
Standard
|
| Pages |
20
|
| PublisherName |
British Standards Institution
|
| Status |
Withdrawn
|
| Supersedes |
| Standards | Relationship |
| IEC 60255-22-1:2007 | Identical |
| BS 7647:1993 | Specification for radio teleswitches for tariff and load control |
| BS EN 60255-6:1995 | Electrical relays Measuring relays and protection equipment |
| BS EN 60495:1994 | Single sideband power-line carrier terminals |
| IEC 60255-5:2000 | Electrical Relays - Part 5: Insulation coordination for measuring relays and protection equipment - Requirements and tests |
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