Electrical Engineering Interview Questions
Questions Answers Views Company eMail

How many methods to take IR value of Current Transformer?

1 3176

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

5 4832

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

921

what current is taken from a double wound 500kva transformer

4 2691

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

687

what is the differn bitween RCCB &MCB

3 4025

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

1 583

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

1 1678

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

7 8819

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

10 8219

WHAT IS RETARDATION TEST IN DC MACHINES?

4 13923

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 6289

What is the pratically meaning of neagative going ac current.

1 1567

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

9 5987

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 2118


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Un-Answered Questions { Electrical Engineering }

ELECTRICAL DRIVES: can a motor load system with passive load torque can have equilibrium speed in second quadrant

1872


how to determine the cable size...pls explain me with the formula taking particular load....does the factors like impedance & short circuit rating influence the cable size, if so how....

479


why ht motors are star connected?

355


How can you sized or estimate the ligthning arrester current rating?

430


Can we put 3 layers of cable tray while installing tray

776


How to test the vector group of a Yd11 transformer? what are the relations to be checked between various vectors to confirm this vector group?

2461


what is meant by re-rolling motor? how it differs from standard motor?

389


What is Long rod insulator and it's applications..? merits over the disc insulator ..?

387


How two nos. 130 kw D.C motor get synchronise using D.C drive.

416


DEAR SIR/MADAM,CLEARLY EXPLAIN ABOUT CRAWLING AND COGGING EFFECTS IN INDUCTION MOTOR.

365


to hook up ten 50 amp rv pedastels at a lenth of 600 feet from the service what size will my service need to be and the size of wire will I have to run to each pedastel in series??????

346


why we testing the core balance of the transformer before comissioning?

422


how electical engineer is related to apsrtc (general) post? if they ask a question in interview as why did u choose this job what shd be answer

433


What is the role of power pack in substation protection system?

778


What is EMC filter in VVVF Drive ?

869