what is anti-pumping relay and the significance of it in a
switcgear cb control system?
Answer Posted / k.prakashchandra
This relay may also be called anti machine-gun relay as it
prevents repeated closing and opening of cb ,while test
charging .If at all you are test charging a feeder after
tripping on fault and the fault still persists, there will
be repeated closing and tripping with control switch in
close- command.This relay will open closing circuit after
the initial closing -command and it allow for next closing
operation only if the closing switch is released
| Is This Answer Correct ? | 7 Yes | 0 No |
Post New Answer View All Answers
why the carbon brushes are broken in srim while the motor runningtime
if i get a drop in my 1st year and the i clear my 2nd year and 3rd year all clear and i dont have any back logs so can i be able to sit in campus selection??
Determine the BTU size of an aircon for 20 sq metre room
why is control bus bi-directional?
delta motor winding resistance I take normally single winding is 2.5, which value is came delta connection ie RY ?
how to determine the inrush current of a transformer
why genarator genarating voltage 11 KV?
what is the prinsiple of dc motor and construction and working ,application of dc motor.
how to control dc motor?
WHAT R THE SAFETIES IN A HIGH TENSION PANEL N LOW TENSION PANEL. ALSO WAT SAFETIES R THERE IN A 200 KVA TRANSFORMER?
How much costly in percentage wise is sandwich busduct costly than air insulated busduct of any rating?
LT cable fault chaecking equipment and to find out the distance at what distence it failure . Name and where it is available?
TCS IS IT COMPANY THEN WHY DO THEY NEED ELECTRICAL &ELECTRONICS ENGINEERS?
what heppend if we are connected u1-v1-w1 as a star point in the place of u2-v2-w2 in power genration
How to test the vector group of a Yd11 transformer? what are the relations to be checked between various vectors to confirm this vector group?