Electrical Engineering Interview Questions
Questions Answers Views Company eMail

what is the minimum dielectric stregth of transformer oil.

HP,

25 52735

what are the affects of loose connection in electrical circuit.

HP,

13 42514

The objective of connecting a resistance and capacitance across gate circuit is to protect the SCR against

1 2199




what is the diffrantial relay???????why we use it on the MDB

5 4431

what is the meaning of the parameters labeled on the surge arrestor like 150/20 ???

3 4685

what is humming AC solenoid

Seagate,

2 4093

purpose of check value

Seagate,

1 1307

How to calculate the average power factor in 3 phase unbalanced system

MacLellan, Bhel,

5 16248




hi i have applied for lic of india south cenrtal zonal ,hyd. i didnt get hall ticket till now.let me know how can i get form internet

666

What are the different methods for calculating Short Circuit Curren?

3 3136

why transformer rating in kva?

7 5738

How to convert resistance value at 20 degree to 90 degree?

2 6885

In stepdown transformer 11/415 volt two nos.(R & Y)HT side fuse is blown ,what will be voltage of ry,rb,yb in secondary side

NTPC,

5 6476

How to calculate the cable size for particular load

Knight Frank,

2 5931

How to calculate the Efficiency of Chiller

L&T, Knight Frank,

2028


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Un-Answered Questions { Electrical Engineering }

Whar is the KvA rating of 33Kv substation & actual kv rating of power generaating station.

1047


In siemens S7-300 PLC, what is function and function block ? What is the difference between them ? When to use function and when to use function block ?

779


static chagre

764


in a solar power plant,we are going to step up the voltage 350V to 33kv, and to 132kv GSS. i want to ask that if it is possible that 315v/33kv is not possible because we also use 315v/11kv. or it should be 415v/33kv? is it effects generation or losses?  the second question is-generation is depends on LV winding? or LV winding design for generation voltage?

435


Lt motor sfu flashing reasons?

398






why we are using Load factor?

191


What are the site acceptance tests for power cables, DG Sets, LT panels & 30kVA UPS ?

1029


what are the values of VRY,VYB,VBR,Vry,Vyb,Vbr,Vrn,Vyn,Vbn for Magenetic balance test of 100 KVA and 63 KVA Distribution transformer

1098


Any one who apply for Ferro Scrap Nigam Limited cn join with me at rajuhalder@indiatimes.com or 09669717028

762


WTA used cb?

576


How to calculate VA rating for CT or PT or Control Transformer?

1414


Is there any question in the name of Static Switch in UPS??

672


how to select overload-relay for perticular motor 1.for D.O.L. starter 2. for Star-delta starter ????

1513


what is mean by Digital Logic Meter (DLM)

958


if in 3-phase system voltage=440V,frequency=60Hz, current=400A. then if it is single phase then current=? and if it is single phasing then current=?

1133