what is the difference between the 94 lockout relay and 86
lock out relay. I have noticed that the 94 lockout relay is
activated when the distance realy is activated and 86 is
activated when the 87T differential is activated. but why
can't the same lockouts be used for both the protection
schemes
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Answer Posted / jayesh n. pillai
86 LOCK OUT RELAY IS AN ELECTRICALLY OPERATED HAND, OR
LECTRICALLY RESET RELAY OR DEVICE THAT FUNCTIONS TOSHUT DWN
OR HOLD AN EQUIPMENT OUT OF SERVICE, OR BOTH, UPON THE
OCCURRENCE OF ABNORMAL CONDITIONS.
94TRIPPIN RELAY IS HAVING FUNCTION TO TRIP A CIRCUIT
BREAKER, CONTACTOR OR EQUIPMENT, OR TO PERMIT IMMEDIATE
TRIPPING BY OTHER DEVICES. OR TO PREVENT IMMEDIATE
RECLOSURE OF ACIRCUIT INTRRUPTER IF IT SHOULD OPEN
AUTOMATICALLY EVEN THOUGH ITS CLOSING CIRCUIT IS MAINTAINED
CLOSED.
| Is This Answer Correct ? | 18 Yes | 3 No |
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