In an ACB shunt trip coil and undervoltage coil operated normally( breaker open

In an ACB shunt trip coil and undervoltage coil operated normally( breaker open and charged). But closing coil not operating untill manually discharge and recharging. Any help.

Question Posted / ajith

0 Answers
1800 Views
PPIL, I also Faced
E-Mail Answers

No Answer is Posted For this Question
Be the First to Post Answer

Post New Answer

More Electrical Engineering Interview Questions

give me battery AH calculation in U P S

1 Answers

how to calculate power consumption in slip ring motor at different step

0 Answers ABB,

which type of motor is used in lift ?

7 Answers

why does chattering take place in ac contactors? can it be avoided & what care does the manufacturer take to eliminate this phenomenon????

10 Answers

i need some project topics along with circuit diagram in the electrical adnd electronics engg and also give ome website regarding projects.my mail id is thenmozhi2k7@gmail.com .please help me.

0 Answers

what is different between buchhoz relay and pressure relife devices in transformer

2 Answers Spanco,

how we can improove power factor?????????

8 Answers TATA,

1.how to calculate energy units in our home at singe phase, 2.415V,63A wiring what will use thickness of wire

2 Answers

How calculate the Transformer Impedence With Example

3 Answers

in GEAFOL Cast-Resin trnaformer of 11/.72kv which has tapping of 11550v,11250,11000,10246v in primary side. To obtain 700v. which tapping should be used of HV side as we have 11000v/720v tapping now .

1 Answers

what is the operation of regulator in fan?

4 Answers NTPC,

What is the difference between induction motor and the Synchronized one?

4 Answers Foxconn, Sabic,

For more Electrical Engineering Interview Questions Click Here