Electrical Engineering Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

do we need NGR panel when the output of the genset is LV but after that it is step up to 22 kv. condition is 12 genset 400v are operating in parallel.

1 5665

132 KV TRFO BUSHING BURNT WHEN A 6.6KV HAS BEEN APPLIED TO IT .WHY .ANY REASON ?

MRF,

2 9213

Why is it that North America uses 60 hz frequency while Europe uses 50 hz?

4 9403

Why ACB is used in LT why not in HT and why VCB is used in HT why not in LT

GE,

1 24578

Name of the relay of low lub oil presuure in DG sets

Lineage, Sterling,

2108

why most of the induction are delta connected?

6 9925

sometimes, eventhough the HV side of the transformer is opened there is a voltage in LV side .How is it possible?

4 7596

how can we calculate that how much capacitor is needed for a system to increase the pf?

5 9417

how will calculate the winding ohmic value in 3phase motors in h.p wise? ex.10 h.p motor winding value ph to ph ? 5 h.p motor any calculation please send me.

Hyundai,

1 6551

what different in delta & star connection in motor?explain

Bhushan Power Steel, Hyundai, KPCL, L&T,

5 14190

why the CT ratio secondary is always divided by 5 for eg( 75/5,80/5,50/5)

6 16770

what is the voltage present in the telephone?

Infosys,

10 14190

why do we connect droop ct{in gensets}in y_phase only

2 8481

HOW DG WORKS ?

3 17152

Does the dg syncronization sucessful in practical.

2 4726

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Un-Answered Questions { Electrical Engineering }

how to decide the panel size like MDB ,SMDB PANEL SIZES

7450

There is air in a room . the top and bottom of the room are at constant temp. T1 and T2. DRAW THE temp profiles if a. T1 greater than T2 b. T1 less than T2

1958

when we design electrical schemes of 11/.415kv distribution..wen and were should we show the relays??what is the function of it?for example..we place EFR Relay CT between transformer neutral link and transformer earth.Like this what are the other type of relays we should use?why?where?Explain please..Thank you

1855

What do you mean by power transformer?

1149

How to calculate earth fault current for 6.6 KV , 50 HZ , 756 Amps , 3000 RPM , 0.8 PF generator

2115

The power supplied to a 50mH inductor from a 120V, 60Hz source will be

4848

how we explain parallel paths armature winding?

2015

What are the components of feedback control system?

1154

what is plunger and what's the use of it in motor alignment?

2707

Mention what are the types of semi-conductors?

1274

explain which quantities change in the starting and the and the running condition in induction motor

1513

r we are using in gas turbine mark (5) frame (6) (made in india Bhel 1997) Ā

1769

How we can calculate the life of Lead acid battery

1854

what is protection class current transformer.

4403

I have a CT meter with ratio 60/5. The meter reading of previous month was 3290.49 and that of current month was 3797.26. How many chargeable units as per normal meter should be my reading.

1464

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