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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

what is the power factor

Heidelberge Cement,

13 14926

what is the operating principle of contactor(power).along with disection?

NASA, Tech Mahindra,

3 17223

in india why we not use frequency above 50 hz for distrubuting power ?

1 4807

howmany types of compresor is there? and how to calculate compresor capacity?

3 5863

how to calculate generator capacity?(kva)

SMEC,

2 19377

flush point of transformer?

2 4572

Hoe to calculate body earthing conductor size ?

IES,

1 9740

how can alculate the apfc panel rating?

3 14974

why are using bus ducts ? why not using cables

12 48476

How to select circuit breakers rating eg. if i select a circuit breakers of capacity 40 amps DC with operating voltage 28 volts and if i what to use same circuit breakers for 300 Volts DC application what is the current rating of this circuit breakers.

1688

what is the defination of Cable database? What are the points are considered while preparing cable database? Is there any sample available for cable database?

1855

WE ARE PLACE A NEW 75 KW MOTOR FOR JPF.IT IS CONNECTED IN M.C.C. WHEN WE ARE STARTING M.C.C.INCOMER IS TRIPPED.THEN WE ARE CONNECTED IN P.C.C WITH A MM30 RELAY PROTECTION THEN WE ARE STARTED MOTOR WILL RUN SMOOTHLY.

2023

why the three phase transformer's star point does not sparks or seperated? while we often see that two phases touches each other it sparks and ocationaly conductor breakes out.

4 8423

Can we parallel two grid with different incoming voltage. Ex.let say one grid is 132kv and another is 220kv.

2 4748

GIVE CONDITION FOR MAX EFFICIENCY OF 3-PH TRANSFORMER AND D.C MOTOR

BARC,

2 7234

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Un-Answered Questions { Electrical Engineering }

What is pd controller?

1061

What is difference between YNyn0 and YNyn ??

2471

what is negative d.c. voltage, why this voltage is used in base transciever station.

2126

how synchronous condenser is used in place of synchronous generator with out negotiating IEEE standards? Can i use 3 generators as synchronous generators and 2 generators as a synchronous condensers in an IEEE 14 bus system with out disturbing the standards?

2087

i've iocl interview.. if you know the interview process please give me information..

1945

State the other types of Air Conditioners?

1999

Define the three phase formula fuse.

1822

Explain the working principle of Synchronous Generator and Assynchronous generator?

2166

how to compute kvar in substation feeder to improve power factor and sending voltage

2100

What is the loss of transformer of 220kv/11kv, 63/80 MVA and 18.05% impedance

1947

i have done diploma and btech in EE and live in Chandigarh so kindly help me how can i make my competency certificate in my area.

2168

Dear sir, In our plant have Station Transformer having capacity,i want to know, why LV side 40 - 40MVA is given? & how we can get 6.3 KV supply from tertiary(i.e. Open delta connection), Vector Group YNyn0 - yn0 +d MVA Rating 80MVA / 40 - 40MVA + 26.7MVA Voltage rating 420 (Tap range +6,to -10)81.25% /11.5KV - 11.5KV +6.3KV

2133

Diagram and details of polarity test for Current Transformer 11kv 400/200/100/1A

2990

What it the purpose of parallel phasing transfomers??

1943

i have 500 amp inductive load of motors ,,,pleas tell me how can i calculate for capacitor bank for improving my power factor to 99 .....calcullations for capacitor bank,,,,

1568

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