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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

If we want to change a contactor of faulty one what are the conditions want to fullfil

Qatar Shell,

2001

A 11 KV motor is working. if the supplay is fail. what will happened with it's breaker? Trip / remain the same condition?

4 7085

A 6.6 KV motor breaker is try to Drack OUT by me while the motor running. What will Happened? a, will Trip. b,Drack Out lever will not access c, will get shock d, noting will happened

4 7514

If I want to buy a new Xformer for my plant what are the main parameter will I need to check?

1901

Why the motor take high starting current for long time(10- 15 sec) which is connected to Blower as compaire with a motor which is connected with pump with same rating?

2 4949

Why a motor blower cobination draw more current at winter than summer?

1 3944

in the case of 6.6kv motor starter combination contain fuses on it VCB. but in 11KV motor starter combination Fuses are not using in it's VCB why?

2285

what is the different between RCCB & ELCB

3 7757

why HT motors are earthed only at equipment side & for it's single core cable with aluminium wire armoure using?

Legrand, NLC Neyveli Lignite Corporation Limited,

1 4313

why Batteries & Battery chargers are used in substation? what is the different between UPS & battery charger?

DLF,

4 52770

In the case of petrochemical area AC drive & AC motor is used where the speed variation is required. Why they are not Using DC drive & DC motors in such areas?

1 4280

which one is more efficient, torq, power & ecnomy with the same frame size AC motor / DC motor?

2189

what is the minimum (Common factor) insulatin resistance of the following a, 4mm sq wire b, cable from 50 mm sq to 800mm sq

2108

what is power plant?

2 5213

What is difference between incomer & outgoing type Vaccum Circuit Breaker?

VBG,

2 19783


Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

draw singleline diagram of star to delta and dol starters

2259


Why HT 11 KV Slipring Motors are connected in star ?

2228


why do we need to use 3c+3e cable, normally i select only 3c+e cable and i think it is enough. pls explain the usefull of 3e cable ( in this project the earthing system is well done)

2476


1sq mm dc powr cable can carry how much dc currnt

2072


how to find the Motor,s insulation Power?

1767


hii this is ranjith from hyd... i want to know what type of questions they ask in interview...and hw the interview will go..? what subjects thay ask specially for electrical engg students?

1978


State norton’s theorem?

1115


what is the function of statics switch in ups and tell me parts

2044


primery try cell?

2207


How can i calculate the Breaking capacity of molded case circuit breaker, is the breaking capacity of CB for Diesel generator shall be less than grid supply's breaker ?

2248


how we calculate electrical load on a building according to area?

2804


What is bode plot?

1249


if grounding is notdone at regular intervals for long distance transmission, will the load connected at distribution end receive voltage during negativehalf cycle of the sine wave?

2038


What is big transformer parts and their function ? Ty

2217


what is your aim

1930