Electrical Engineering Interview Questions
Questions Answers Views Company eMail

How many methods to take IR value of Current Transformer?

1 3558

why autotransformers are not safe for supplying low voltage from a high voltage source?

5 6091

Explain the experiment on ward leonard method of a speed control on a dc shunt motor with an suitable circuit diagram.

1113




what current is taken from a double wound 500kva transformer

4 3112

what is the tolerance for the magnetic balance test conducted on the distribution transformer?

1077

what is the differn bitween RCCB &MCB

3 4467

what is b checks and m checks in diesel generator maintenance?

1 889

how caculate the pump head to maintain perticuler pressure of water and what would be the motor size in hp for the same?

1 1987




what should be the megger test report for 11KV cable when meggered with 5KV megger , what is the resistance value we should get

7 10036

how we can calculate power factor without knowing current in 230v 100w load ?

10 10731

WHAT IS RETARDATION TEST IN DC MACHINES?

4 16562

What is the List of Equipments, Instruments, Components required in Transmission of electricity from 1 substation to other substation(The equipments required in substation too)? What are the differnt IS standrds used for above equipments in Industry?

2 7532

What is the pratically meaning of neagative going ac current.

1 1877

Why a transformer is rated in kVA and not in kW??

9 6978

my self i am raghu working as tech.. in my college the maximum demand is 211 kva presently we are using 12kva capacitors the target power factor is .95 so what capacity of capacitor banks should i install

2 2541


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Un-Answered Questions { Electrical Engineering }

what is integrated ac contact circuit

498


A 500 V shunt motor runs at its normal speed of 250rpm when the armature current is 200A. The resistance of the armature is 0.12 Ω. Calculate the speed when a resistance is inserted in the field reducing the shunt field to 80% of normal value and the armature current is 100A.

253


DRAW ACIRCUIT DIAGRAM OF 100 KVA 415V/55-0-55V DELTA TO STAR TRANSFORMER

624


any earth foult trip the relay but in welding time not trip by earth foult

1723


i need of the bhel question papers along with answers and also give some website names for the downloading question (electrical and electronics engg question)please help me....

497


please suggest some good universities with low cost iam in totally full confusion so please help me my profile gre 283 and ielts 5.5

259


what is metering cum synchronizing panel and how it is used?

2012


What is the method of estamating of cable, CB,MCB ?

665


63MVA,220KV/6.9KV Transformer LV side neutral is connected to Earth pit through NGR. Whether this earth pit required to connect with near by below grouding earth mat or it is to be kept separate?

1073


how to calculate the size of the HT cable

347


What safety precaution are to be taken for avoiding electric hazards ?

535


The height to which the liquid in a tank to be maintained for a certain constant velocity?

548


explain supply side and demand side energy management with advantages & disadvantages

673


Please tell me the power flow from pmg to main rotor of an alternator (Including AVR unit)?

702


when we gave dc supply to 220v dc motor its rpm is 1200. then we gave 180v. how many rpm of its motor. gave answer with calculation at my ID.... ravizak@ymail.com

738