IS: 3231 (Part 2/Sec. 2) - 1987 (Reaffirmed 1992); Specification for electrical relays for power system protection Part 2 requirements for principal families Section 2 general requirements for measuring relays

Contributor(s): Material type: TextTextPublication details: New Delhi BIS 1987Description: 35p
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IS: 3231 (Part 3/Sec. 4) - 1987 (Reaffirmed 1992); Specification for electrical relays for power system protection Part 3 requirements for particular group of relays Sec.4 directional relays and power relays IS: 3231 (Part 3/Sec. 2) - 1987 (Reaffirmed 1992); Specification for electrical relays for power system protection Part 3 requirements for particular group of relays Section 2 dependent specified time measuring relays IS: 3231 (Part 3/Sec. 5) - 1987 (Reaffirmed 1992); Specification for electrical relays for power system protection Part 3 requirements for particular group of relays Section 5 Impedance measuring relays IS: 3231 (Part 2/Sec. 2) - 1987 (Reaffirmed 1992); Specification for electrical relays for power system protection Part 2 requirements for principal families Section 2 general requirements for measuring relays IS: 3231 (Part 1/Sec. 1) - 1986 (Reaffirmed 1992); Specification for electrical relays for power system protection Part 1 General requirements Section 1 contact performance IS:03231 (Part 0) - 1986 (Reaffirmed 1992); Specification for electrical relays for power system protection Part 0 General introduction and list of parts IS: 369 - 1992; Specification for electrical radiator

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