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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

What is EMC filter in VVVF Drive ?

Bengal Energy,

1643

what is proper capacitor placement? How to evaluate capacitor size?

CPCL,

1184

why D.C excitation is given to sunchronous motor?

6 6154

What is mean by hormonics?

5 4782

What is mean by power factor?

Shreem Electric Ltd,

18 18813

WHY IN AC DRIVES,INPUT PHASE CURRENT SHOW UNBALANCE?

Adhunik,

1248

Can we inject more current in ct primary paralleling 2 loading transformers/Injection kit at a time?let ct ratio be (5000/1A)(per kit rating 2000A range),i need to inject 5000A,if this cant b done means wat is d optional?

1 3077

Can HT cable(11kv cable) be used for 415V, 700A requirement.

5 8819

What are the different parts of Alternator and how it works?

1 3078

What are the functions of different Parts of Alternator?

2 19400

How can we calculate strength of copper hich is supplying electric power to heater and in it hold the heater also and what r all types of forces which is acting on it...

ABB,

1012

How Much Capacity of Diesel Genset is suitable for 20 no.s of 1.5ton AC's & Why?(Load Calculation)

Lapis Technologies,

11 27667

how we can select MCB ratings according to Voltages, Curves.

2 11723

how to calculate the powerfactor in induction motor having name plate details? for example 1 h.p motor 1.86 A 415 V

6 16794

Why HT cable have only 3 core ?

Jindal, McDermott,

10 21750


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Un-Answered Questions { Electrical Engineering }

what is the meaning of neutral displacement ???

1763


i am going to correct power factor of 1600kw induction motor,when i calculate capacitance of capacitor it is three time more in star connection than delta. if motor is star connected which connection i shall adopt for capacitors and reason for adopt this connection

997


What is the instrument to check the rotating diode fuse of alternator in running conditions?

1460


Dear sir my name Ankit i m Diploma holder present working in Welspun Corp ltd Anjar as Asst.engg (salary 14400/month ctc) i Would like to change my company also i have selected in ford India pvt ltd Sanand as trainee Tech with salary 12000/month so please suggest me for changing my job hope for *ve response

1953


A jet of fluid strikes a plate What was the force required to counter it?

989






why 3 phase is converted into 2 phase using electronics circuit why not 2 phases are diresctly putted from the 3 phase transformer??

1198


defination of controlled shunt reactor

1369


DESCRIBEPNEUMATIC SYSTM OF ASH HANDLING PLANT

4303


we have a lot of model of rectifier but thyristor rectifier is the most rectifier that use in power system. Do you know why this rectifier is used?

927


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

836


For overhead protection we use which transformer?

1235


how can maintaince the acb contactor moveing and fixing kit

1123


wat system call?

1043


How many types of colling system it trformers?

184


reason of diode failure in alternator

905