Answer / tt

to remotely trip the breaker

Answer / manmohan

It is used for remote tirpping of CB

Answer / i.senthil kumar

if



if it is happened any earth fault or short circuit to
energized the shunt coil,immediately tripped the ACB

Answer / md waseem khan

Shunt trips are devices used for the remote
instantaneous opening of the air circuit
breaker. They are generally controlled trough
an N/O type contact. The actual offer of
shunt trips proposes two supply voltages
(110 V and 220 V), both compatibles with AC
and DC currents. The shunt trips are already
equipped with a special fast connector, to
be directly inserted into auxiliary contacts
block. An auxiliary contact is connected in
series with the coil, cutting off its power
supply when the main poles are open.

Answer / gopal

We can't open relay contacts With out shunt trip coil. So it is essential to open circuit breaker during fault condition.

Answer / ajmal

1. it will trip the mccb, in case of overload

Answer / s.krishnamoorthy

the shunt coil 3phase supply any one phase not come that
will triped acb.

what is the diffrence between resistive , inductive and capactive load please explain with exmpels?

2 Answers  

Why air gap in rotating machines should be small?

3 Answers  

some basic standard questions on transformer.

0 Answers   United Engineering,

We are using Powerica make 100 KVA DG set. Whenever i connect compressor on DG load (Compressor Make Atlas Copco 5.5 kva) that time we face the lot of fluctuation on Dg output. Can you please suggest me how can prevent this fluctuation?

6 Answers  

hi friends ,iam working as genset AVR service engineer in electrical field from past 2 yrs throughout india . i plan to shift in some other job without travelling in same field because i con't travel,i dont know what i do for that so please guide me what job is suited for me,how i can serch the job please anybody helpme iam totally confused

4 Answers  

We are using 3core 11KV HT cable for same phase for generator outgoing, the cable leakage current is high and cable heated overly what is the remidy, if we use the 3core cable for 3phases the problem is solved are not?

1 Answers  

How to calculate the External Resistance required for 60HP slipring motor in case no any data of the Motor is available???

0 Answers  

what is the difference between ground and neutral?

2 Answers  

While performing load test on DC SERIES MOTOR, does the voltage decrease slightly. Why?

2 Answers  

Which type of gas used in cylinder (VCB)?????

15 Answers   ICSA,

why does not tester light up when it is touched to neutral of 3 pin socket.

4 Answers  

Is it advantages of having star-delta vfd than normal star vfd , if yes why?

0 Answers