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

Electrical Engineering Interview Questions

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WE are using a 63A MCCB(SIEMENS MAKE) for one of the feeder in LV substation panel.It is supplying to a lighting & power socket DB.Settings in the MCCB is Ir = 63 * 1 , Isd = 8 times of Ir , tsd = 0.5 sec( I2 t off). Sometimes this MCCB is tripping .But no trip in DB MCB. Can anybody tell me reason ? From where i can know about the MCCB settings?

5 11511

how to reduce earth to neutral voltage?

Field Gun Factory,

8 27113

what is the differnce of STATIC ENERGY METER FROM ordinary energy meter?

1 3594

Any one can explaination about calibration with rotating sub standards?

1 2154

What is the basic working principle of Tri vector meter?

TCS,

5 32286

What is the difference between double compression

Bhel, Hyundai, Orchid Chemicals and Pharmaceuticals, PDO, Prefamac,

7 59290

how current flows in circuit?

11 18556

What is the current flow in 230v ac supply ? What is the current flow in 415v Ac supply ?

6 32889

why the power factor in inductive load is lagging while it is leading in capacitive load?

6 19314

what type of earthing is done on hilly rocks.

4 20141

what is the difference between Earthing,Grounding and neutral?

Biocon, Tata Steel Limited,

3 8558

What is the output voltage of a DG set.

Fitness First,

3 9096

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

Grasim,

1 2450

I am inpecting a 10kVA UPS what tests should i do and should i observe?

1 2297

what do you mean by synchronous speed of a three phase induction motor?

FlexPoint,

5 15267

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Un-Answered Questions { Electrical Engineering }

Electrical Engineering

2149

1)how to reduce the value of tan delta of trasformer and CB,bushing,CT&PT,CVT ? 2)how to reduce the resistance of CB contact and its operating time? 3)plz.....send me the project report on conditioning and monitoring of substation equipment on my email id (gusaiyogendra03@gmail.com)

2406

Please send 110 kv sb station full single line drawing(sld)

2540

CBCT selection

2350

I am shobana from Chennai. I am having my personal interview on 19th Dec at Chennai.kindly mail me the questions to mail id shobana.shanthi@gmail.com

2458

sir please send me previous year questions of jspl of electrical section through which i could prepare myself fpr the test.

1994

TO CALCULATE THE RESISTANCE OF GRR OF HT MOTOR 400KW WHEREAS STATOR VOLTAGE 6.6KV AND ROTOR VOLTAGE 705V AND ROTOR CURRENT IS 346A.

5600

I am going to appear for the RRB Chennai Section Engineer online exam. Please send me the question papers from 2001 to date to my mail id:upendrakrishna20@gmail.com,plz send me ,or send any other rrb papers plzzzzzzzzzzzzzzzzzz

2181

send me any model test paper of clerical post of state bank of india.......

1932

please give some hindalco placement papers for written exam

1894

what will happen if synchronous machine rotor fed from single phase ac supply

1819

how you will decide the distance between the power transformer and its fencing

2038

please send me last 5 year interview questions

2274

If not into production, how far did you follow the design and why did not you see it into production?

2244

Can you used moeller lzm1 mccb in a dc system with 125vdc and 20ka short circuit current , beside is it have 24 or 48 volt shunt ? Beside how long current can through from An MCB shunt contacts? (like Z7-AS 24 V)?

2153

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