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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

if we increase frequency of line, then how will string efficiency varies with it.

2 12998

Dear all, Can anybody tell me that how to choose CT for a specific load? I have a 200kw induction motor, which ratio CT should be installed? Is there a formula or calculation that determines the CT ratio for a load? Regards.

2 6372

How to calculate KVA/VA rating of PT or CT from primary & secondary voltage or primary & secondary current?

2388

what is the difference between control transformer and Potential transformer (PT)?

1 4384

is 3-phase induction motor need a starter ? why do it so

Coca Cola,

5 7994

what is the use of the circle diagram

2 5485

what is TRCC

2 15525

How can I calculate per unit (KWH) fuel (Gas/ Diesel both) consumption 1MW unit?

2072

what is brushless generator?

Jk Tyres,

2 5210

Can we perform parallel operation of two transformers when one transformer on load?

3 5113

dear all, can any body explain that how to select an induction motor for a specific mechanical load(inertia). is there any formula or calculation then please give me. i shell be very thankful to all of you. Thank,s and Rgard,s.

1 3055

why secondary terminal of current transformer should not be open circuited?

ABB,

4 10366

In the formula : Knee point voltage = Burden X alf / class, Please inform what is alf? regards Shashidhar M.R.

2 4153

Will an earth leakage trip be activated if the component or wiring is faulty on low voltage equipment.Example An electrical Cat Scarer placed in the garden and water gets into the wiring.

1817

which type of motor is used in lift ?

7 10901

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Un-Answered Questions { Electrical Engineering }

What is force on parallel conductors ?

1047

Explain what is electric traction? Explain few advantages of electric traction system?

1106

Define piezo-electric effect?

1084

Testing procedure of DG alternator stability test

1491

What will happen if the voltage in my house drops from 220V to any lower voltage?

2135

what is transistors comprised of?

1100

difference between power surge and switching transient

2038

What are the ratings of VCB, MCB, MCCB, SF6, ACB, and OCB?

1513

Post possible questions for Power Factor Panel FAT / SAT

1370

difference between ac series and parallel circuit

1988

how to determine the inrush current of a transformer

2573

how to calculate sizing of NGTR (Transformer rating,Loading resistor value and Current rating of resistor) and what is the X/R ratio. Details : 11kV,Capacitance 1.73532 micro farads,40kA for 1sec.

2228

please give me all the Alarm .Trip ,Safety Relays & Conditions of Chiller mail me on ashokbabunhce@gmail.com

1774

what is the max. acceptable leakage current in 33kv bus bar

2959

IN dc capacitive reactance is??

1356

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