BS 142-3.1(1990) : 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Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.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 - REQUIREMENTS FOR SINGLE INPUT ENERGIZING QUANTITY RELAYS - SPECIFICATION FOR SINGLE INPUT ENERGIZING QUANTITY MEASURING RELAYS WITH NON-SPECIFIED TIME OR INDEPENDENT SPECIFIED TIME
Hardcopy , PDF
15-08-1997
English
01-01-1990
Foreword
Committees responsible
Specification
1 Scope
2 Definitions
3 Standard rated values
4 Limits of the operative ranges for auxiliary
energizing quantities
5 Thermal requirements
6 Accuracy
7 Overshoot time
8 Rated burden and rated impedance
9 Mechanical classification
10 Construction
11 Marking and data
12 Insulation
13 Additional requirements for static relays
14 Contact performance
15 Thermal tests
16 Mechanical tests
17 Accuracy tests
18 Test conditions for measurement of overshoot
Tables
1 Values of the characteristic quantity or input
energizing quantity for mechanical durability tests
2 Test conditions relating to the characteristic
quantity for determining errors relating to
specified time
3 Initial and final values of characteristic quantity
for measurement of overshoot
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