Electrical Engineering Interview Questions
Questions Answers Views Company eMail

Does increase or decrease of reactive load affects the Voltage.

Nalco,

5 6583

How Calculat the Cable Sizing of HT/LT System & Explian by one Exampal?

Siemens,

1 4391

What is meant by TAN-DELTA test carried out in motors?

3 15004




Why reverse power relay is used?

12 41384

What is the meaning of ST and HT in electrical transmission and what are thier range.

6 18896

why the transformer secondary voltage is more than the load end voltage like t/f 11KV/433V for 415V(terminal voltage)

4 6684

how netral CT is selected (including its details specification)

ABC, ABB, Mecon, dbpl, Shree Engineering, Tapasya Transformers,

8 29137

Different STANDARDS (BS, IS, IEC etc) gives different informations on CT specification. How they correspons w r t each other (i.e I mean to say BS provides "knee point voltage" but IS does not, then how can i select CT)

689




what are the necessary basic electrical topics to learn for mechanical engineer to deal practical problems.

Honda,

1000

what is upper impedance and lower impedance of a distance relay

831

What is RTCC in a transfomer and specify its function.

MCB, Vodafone,

10 93395

What is OLTC in a transformer, specify its fuction.

L&T, Bhel, Isgec,

35 113483

What is OT in a transformer, specify its function.

2 2221

Whta is WT in a transformer, specify its function.

4 5329

What is ST and specify its range of voltage.

693


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Un-Answered Questions { Electrical Engineering }

What is difference between Harmonic and Non harmonic Capacitor Bank?

1411


Stator of 3-phase IM has 3 slots per pole per phase. If supply frequency is 50 Hz, calculate the speed of rotating stator flux A 1000 rpm B 500 rpm C 1500 rpm D 1440 rpm

836


What is the difference between type1 and type2 relay protection co-ordination for motor feeders

747


how to make an earthing certificate

981


why genarator genarating voltage 11 KV?

413






2- What are the percentages between excitation currents in phase (R, S and T) in ∆ and Ỵ connections in excitation Current test in transformers?

764


XYZ

854


how can we save enegry by using VFD for Resiprocating Air compressor which is having more unloading running hours

947


Good morning: I'm looking for some informations about the OLTC or the LTC: I wont to know what the function of the tie-resistor in during the operation of reversing/coarse operation Cordially

770


can anybody send the rrb chennai &rrb bopal question papers of 2006&2007.My exam is on 12 oct 2008.Its urgent

816


What is the method for testing the differential protection stabilty in generator? When the time of starting What will happen if differentail protection connection wrong means?

964


What work have you done on full chip Clock and Power distribution? What process technology and budgets were used?

1385


what is the relationship between current&voltage in practical purpose ?

2890


How phase displacement change in the over current relay coils.

1111


how to calculate insulation level of transformer?

224