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Electrical Engineering Interview Questions

What do you meant by slip power recovery?

PSEB,

6612

Give two basic sprrd control scheme of DC shunt motor.

4085

1236

What are the advantages of individual drives?

3745

What is plugging as applied to an induction motor?

25080

Define heating time constant of electric motor.

18476

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

48497

what will happen if the bus PT fuses are accidently removed from the circuit in 6.6kV feeder?

3769

why is it that the HT motors & motors having very low kW rating(<1kW) have windings connected in STAR, whereas the motors having in between kW ratings have DELTA connected windings??

7067

which are the criterias needed to select the kind of neutral earthing(solid earthing,resistance earthing,etc.) at various voltage levels in electrical distribution?

1042

How maesure earth neutral value & how much maximum value value required in between earth & neutral.

1154

How does ELCB work when exist earth foult? and How does RCCB work when exist earth foult?

7745

THE 40 MW OF POWER FOR 220 V III PHASE POWER CONNECTION REQUIRES HOW MANY KVA POWEER REQUIREMENTS

6818

what is intermediate switch

2501

In DC generator, we use commutator, having no. of segments. Then how it is possible to get a half wave of voltage and current for half rotation of armature?

1065

Un-Answered Questions { Electrical Engineering }

What is sensitivity of a measurement?

183

does the Trivector Meter of three phase automatically takes care of the low power factor and gives the reading accordigly or it does not take care of the Power factor while giving the readings please explain

976

Where can i get practical knowledge of solar system?

461

234 MVA Generator 3 phase Short circuit current Values required? Gen set Rating-234 MVA, Gen Voltage-18kv, PF;0.8, Xdv:23.5 %, Transformer Rating-18/380KV, 680MVA,Yndd1 two winding, Step up TR, ZT:35.50 %,X/R 4.33 Gen CB Position, CB open ,Disconnected open, Generator Running Voltage 18 Kv, Bi mistakes generator side earth switch Closed during that time short circuit current level in 3 Phase required, and how to test on site 234MVA Generator Short circuit current,

1038

can mini-curcuit supply MIL-tested transformer !

1106

why occ characteristics curve in not tracing back when we are bringing back the rhoestat?

912

WHICH SIZE A.B.CABLE IS USED FOR 11KV.

1234

How i can decide that HVDC line is best for transmission.

1002

11000volt DG set carnt kaise banvay

677

why do you add the load short circuit impedance when considering short circuit amperage. It seems that you should only consider supply. If you need to consider loads and you don't know what loads are to be added , what would be a good sub-transient reactance rating for the loads?

970

What is the current carrying capacity of 0SWG,3SWG,10 & 12 SWG solid bare overhead copper conductors?

2392

ht side line to earth voltage

611

what is meant by power and distribution transformer ?

1056

What are :- AC Distribution Board (Single & Double Front) DC Distribution Boards Distribution Board LT Breaker Panel.

1161

What is the difference between circuit breaker and isolator

227