Electrical Engineering Interview Questions
Questions Answers Views Company eMail

what happen if the parallel generator phase angle shift by 1 degree in manual mode

EEEC, MEC,

1806

critical losses of transformer

EEEC,

3 5915

what efficiency at 70% loaded transformer

EEEC,

1 2434

PLEASE SEND THE PREVIOUS YEARS QUESTION PAPERS OF RRB JUNIOR ENGINEER-ELECTRICAL

1666

what is the difference between KW and KWh?

9 14192

what is rms value?

3 6070

does not the circulating current in a transformer affect the flux distribution in the transformer core

1 1982

How can i calculate knee point voltage of 800/5A Current transformer?please explain me with suitable calculation?

2 10687

how do i work out the Amps of a incommer if i am running 1 37 KW motor and a 0,75 KW motor and some solinoids

1659

What is the function of restraining coil in differential relay? as well as restraining current?

Medical, Siemens,

8 45202

A Generator is in running condition and Rotor earth fault alarm is coming.How to check on line(i.e in running condition) whether there is actual earth fault in rotor or not.

4 11128

what is the difference between STAR and DELTA connection and application wise how it can be utilizedd ???

1 2431

what is the breakdown voltage value in BDV test in transformers?

Siva, TATA,

6 35512

how to connect the three phase capacitor in three phase star/delta connection motor?

1 5832

please send privious years question papers of jindal steel and power ltd.My e mail id is rajanikant.sngh@gmail.com

Jindal,

1870


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Un-Answered Questions { Electrical Engineering }

What is dynamo function in DG sets and draw block diagram?

1814


if we give 60 hz single phase supply to the transformer used in europe , than what will happen

1727


what the principle of sincroscope?how it works?when it needed?

2010


The slip during plugging operation is given by= A 1-s B 2+s C 1+s D 2-s

2650


how many types are their in switchyard or substation(like D,I TYPE), what is differant between them

1910


what is (+) and (-) in generator field detector stand for?

1610


define the active power?

1729


Briefly describe means used by electricity suppliers to influence the flow of active and reactive power in power networks (one for each type)?

1740


In motors how many types of cooling systems were used?

1840


Logic using 1 kV or 1,1 kV grade in house wiring Low voltage cable. Explain/suggest? some use 1kV and some prefer 1.1kV grade insulation low voltage cable why??

1444


What is different between Circuit breaker and Isolater?

1471


As per the Anchor capstan motor specification, full load current is 200A. starting current is 1750 A and acceleration time is less than 8 seconds. Please guide for selection of cable size.

1644


When distance between two pulleys is not fixed, the tension of belt is adjusted by a) driver shaft b) driven shaft c) adjustment screw d) belt

2758


why booster transformer is used in sumpners test conducted on transformer????

3339


What is the working mechanism of OLTC in Power Transformers????

4120