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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

how moving coil indicator works?

1 2446

how LVDT works?

2 4745

what is an oscillator?

7 5447

What is a surge supressor why its is used in synchronous generators

1117

what is High resistance grounding and whatis the criteria for the selection of High resistance grounding

MAHINDRA,

1211

magnetic circuit consume energy

3 3431

1.generator rated as 1000 mva,11kv .8 pf what will 0.8 pf will indicate? 1.max pf it can supply 2.min pf it can supply like this 4 options there what is answer.explain

Power Grid,

5 10449

1.Why hydrogen used for cooling in generators 2.Why electrical equipment protected by ground 3.Why earthing for transmission line 4.What is rms value of half wave rectified square wave. If Rms value of actual wave 2amps.

Power Grid,

1 1950

PLEASE SEND ME NTPC RELATED INFORMATION LIKE WHICH TOPICS HAV MORE SCOPE,BOOKS TO READ,CUT OFF...PLEASE.mail at thiru.1203@gmail.com

1212

why we use four type of phase angle difference between pimary & secondry winding of a transformer & where we use them?

Grasim,

1185

How can maintain our H.T. motors used in cement plant. please send me procedure.

4262

what is the workimg of ct &pt?

5 5241

what is the synchronous timer ? and it applications.

CPCL,

1463

i need previous entrence exam papers of nhpc.

1915

how can maintaince the acb contactor moveing and fixing kit

Gulf Cement,

1155


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Un-Answered Questions { Electrical Engineering }

What is the difference between acs 550 & acs 850

4838


why high speed tripping relay will be used in tripping circuit why not normal relay

428


Alternator rotor earth fault relay circuit

1108


WHY EARTHING NOT NEEDED IN BATTERY IN SUBSTATION

1060


2. Modify your design in question 1.a so that the circuit works according to the following function table X Y F 0 0 Clear 0 1 No Change 1 0 Parallel Loading 1 1 Count 3. Design a circuit that detects the pattern 010 in a serial input X considering: 3.a Overlapping 3.b No overlapping

1016






IF % IMPEDANCE OF A TRANSFORMER IS INCREASED FROM 5.8% TO 8% HOW MUCH THE EFFICIENCY OF THE TRANSFORMER WILL COME DOWN?

1545


How we can determine short circuiting current any plant and for example a plant which power generation is 415 volts and plant load is 500 kw.

1124


pls tell me function of closing coil of A.C.B.

2451


In aerodynamic turbines which element is NOT there a.stator b.compressor c. Fuel intake system d.fans

1079


I have been using an 600VA with 0.6 p.f UPS with my desktop which has 450W power supply unit. Can anyone explain how can this happen . Because the output of the UPS is 360W (600*0.6) (<450W)

1266


Why syn. Generators are used for the production of electricity?

204


List out the the types of Mounting Light fixture?

785


we are small scale industry in production of rice & rice bran. Pls let me know how to take contract demand for our industry.. (for information we have total 600.hp)

2669


What is pd controller?

205


Why is remote backup preferred to local backup?

1057