Electrical Engineering Interview Questions

Write the formula for Fault MVA, Fault current, Base MVA.

20237

# 4 hi friends i m from electrical branch and seeking for tech. + apti. both papers of hpcl plz get it available as soon as possible my email id is sumit_lig189@yahoo.co.in

HPCL,

864

In all the generators, the excitation supply is DC. What is the significance of DC excitation? What will happen if AC supply is given as excitation supply?

2732

if 2 coil of 1000W connect in series and 200 v is applied across it . then what is the total power of coil when coil have only resistive load .

BSNL,

811

What is the Harmonics??????????

5004

where used impendence relay?

2951

What is SF6 Circuit Breaker?

16866

i want prepare power grid exam what are book we want refer for electrical ?

10142

how can we measure 220kv or more than these voltages ...?and also how can we conform whether we r getting 220kv from generating stations throuth the h v transmission lines?

1842

if 2 coil of 1000W connect in series and 200 v is applied across it . then what is the total power of coil when coil have only resistive load .

BSNL,

813

In all the generators, the excitation supply is DC. What is the significance of DC excitation? What will happen if AC supply is given as excitation supply?

9247

How shall i design a liquid rotor starter

1700

what topics we have to concentrate for power grid et.written test.and tell what to read for english synonyms and antonyms.

746

4469

how can we can take BDV test in transformer?

40010

Un-Answered Questions { Electrical Engineering }

How halogen & merquery lamp works.

731

What si the d/f b/w KVA & KWH, kvarh & kvar, kwh & kvar phase voltage & line voltage

4771

Why PT voltages are measured with respect to ground? What do u mean by voltage or current polarized.

1089

What is the real function of reverse power relay in generator panel while syncronising?

762

What is Instantaneous Earth fault relay,how will work

943

what is the effect of change in supply frequency on load angle of synchronous motor,all other parameters remaining same?

1138

How to Decide(calculate) Bush bar size for copper and aluminiam ?

932

what is the differencce inn series and cascade connection??

3355

what are all types of cross section in AC cables?

1085

explain the functions of main isolation switches

435

what is difference between bus coupler and auto transfer switch

417

What is the difference between earth fault protection of motor feeder with CBCT and Without CBCT ?

1464

As per standard, transformer body earthing and other Equipment earthing (Equipment earthing) did not connect. but in LT side termination we are doing metal glanding in both side Transformer to PCC Panel through armoured cable, now X'mer body earthing and PCC Pane earthing (Equipment earthing) both are connect.is this safe for X'mer or other equipment?

424

Pls mail me utility & Dg related question with answer

703

Why collecting electrode of ESP to be earthed

847