if the synchronizing b/w generator and busbar not complete and we close the

if the synchronizing b/w
generator and busbar not
complete and we close the
out going circuit breaker
of generator then what
happen ?

Question Posted / sam

4 Answers
5534 Views
I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

if the synchronizing b/w generator and busbar not complete and we close the out going circuit ..

Answer / sheikh

if synchronization b/w generator and busbar would not be
completed and if you close the out going CB then generator
have gone to over current tripped or reverse power tripped

Is This Answer Correct ?

3 Yes

0 No

if the synchronizing b/w generator and busbar not complete and we close the out going circuit ..

Answer / hamuel vilho

the generator winding wire will become hot and get broken which lead to linkage and it will get damaged,NB it is very expensive to repair winding wire, never try to close the circuit breaker if they are not in the same phases, frequency,

Is This Answer Correct ?

1 Yes

0 No

if the synchronizing b/w generator and busbar not complete and we close the out going circuit ..

Answer / milinda4p

IF the synchronization does not complete and if you close a cct breaker a severe arcing may occur and generator will trip instantaneously. Because the Generator sides voltages and bus side voltages do not match. To match the volatges following has to satisfied.
1. voltage magnitude
2. phase angle difference - 0
3. phase sequence - same
So at this condition there might be present voltage or phase angles or phase position mismatches. Say for example there exists a voltage magntude mismatch of 1 kV and when you close the cct breaker contact points have that voltage across them and this will cause severe current through contact points of breaker

Is This Answer Correct ?

0 Yes

0 No

if the synchronizing b/w generator and busbar not complete and we close the out going circuit ..

Answer / kk

First of all check sync relay will not permit to sync due to control ckt configuration, perhaps if it did then gen bkr would tripped in reverse power (32P relay) acted.

Is This Answer Correct ?

0 Yes

0 No

Post New Answer

More Electrical Engineering Interview Questions

How to perform a DC resistance test In Alternator and their proceduces?

0 Answers

what is electric traction?

26 Answers TCS, Volvo,

Consider three heater bank connected in 3 phase star with neutral.Each heater bank connected in each phase.So each phase get 230 volts supply.my question is,during balance condition, current flow in neutral or Not

0 Answers

Define damping ratio.

0 Answers

How much Fault current can be contributed by a motor?

4 Answers

It is advisable 2 use auto-transformer if transformation ratio is-a)110KV/11KV,b)230kv/110kv,c)110kv/66kv,d) 400kv/230kv

2 Answers

what are all the components required to assemble solar panel other than pv cell?

0 Answers

If a 3 phase transformer is a 500 kva using the formulae 500kva= 500000/433 x 1.732 = 666.71amps does this mean that each phase on the secondary side is 666.71

3 Answers Saffron,

what meant by Locked Rotor Current ?

2 Answers

What are hrc fuses and where it is used?

0 Answers

Are you connected Transformer neutral eathing with it's body earthing or earthing met of switch yard.? Yes or No ? why ?

2 Answers

what is the main function of capacitors in mccs.

0 Answers

For more Electrical Engineering Interview Questions Click Here