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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,

1221

critical losses of transformer

EEEC,

3 4321

what efficiency at 70% loaded transformer

EEEC,

1 1542

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

1092

what is the difference between KW and KWh?

9 10764

what is rms value?

2 4382

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

1 1147

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

2 9220

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

1142

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

Medical, Siemens,

8 39050

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 9179

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

1 1430

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

Siva, TATA,

6 32754

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

1 4780

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

Jindal,

1349


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Un-Answered Questions { Electrical Engineering }

What is servo motor? what is its purpose?

1286


If Polarization index of motor 8.75 at 500volts of medium voltage 4.16 KV motor what this mean winding good or bad pl answer if any reffrence book give me the link

1440


A ii kv 1200 A Breaker combination fixed in a cubicle. How many ampere Fuse is required? If fuse is not using, Why?

1191


During Starter Panel Com missing I Found The Main Incomer 40Amp MCB 10KA Trip When Motor Change Star To Delta Motor Rating 20HP BUT When We Use Same MCB To Other Motor It Does Not trip Or What Is Necessaries for Star Delta Starter MCB SFU MPCB OR MCCB And What are The Breaking Capacity of MCCB in the Motor above 15HP

1123


hi friends how 3 phase converter functioning ?what is working principle of rotory phase converter ?

1325






how can maintaince the acb contactor moveing and fixing kit

1249


IF TVM OF TRANSFORMER SHOWS POWER FACTOR ON 33 KV SIDE AS 0.97 LAGGING AND ON 132 KV SIDE IS 0.75 LEADING.IS THIS CORRECT.WHERE IS PROBLEM.

1487


Difference between on line capacitor and Station type capacitor

1243


how can service sitting be setted for MCCB?Example for sittings IR (CURRENT RATING),IS(CURRENT STARTING)IO (current operating)?

1197


what is the minimum clearance between a 11KV 150KVAR capacitor cell and series reactor.can a series reactor can be mounted in the same structure of the capacitor cells structure

1327


Name a govt approved university which have 100% online engineering course.

986


What should be the magnetic balance test values for a 3 phase delta/star connected single primary dual secondary winding transformer (90 MVA / 2 X 45 MVA TRANSFORMER)

1121


How will polarity test of Dy5 Transformer ?

1458


i have seen one 8.4 MW synchronous motor in a plant located in bellary it is fixed with brushless rotary rectifier ,anybody can explain its start up principle

1202


FEINGING DECREASES THE FLUX DENSITY IN THE AIR GAP. HOW?

1244