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Electrical Engineering Interview Questions

How to calculate cable size in HT AND LT

1018

Ht panal kia hota ha?

1135

What is the Working principle of ELCB and RCCB?

1233

Why is the neutral point of a star connected winding of a motor not grounded?

1574

What is the direction of current flow in ct secondary...means if the current is flowing from P1 to P2 then what will be the direction of current flow in ct secondaryw

928

How you calculating the 30 Hp 3 phase AC motor of power what size of cable is used for this motor?

704

why we not use capcitor in Three phase motor ??

1495

What is the difference between PT for metering and PT for protection ?

4158

What does dny11 stand for?

4551

Ac generato how produce power I need for camplet defination

KCL,

737

How to calculate the 2500 Kva Transformer losses Primary 11KV Secondary 415volts

2595

1)Explain why the cradle guard is used on railway crossing in overhead line construction?

2263

1) Explain why we don't link the two earthing system ht and mv on a pole mounted transformer sub-station.

758

How to select the proper VSD to operate high inertial load

804

what is the harmonics? which harmonics(fundamental and reference) is suitable for calculating capacitor bank and Active filter and passive filter? what is the 1st 2nd 3rd 4th 5th harmonics and effects?

1134

Un-Answered Questions { Electrical Engineering }

Can we indroduce the principle of single phase induction mator to Transformer? i.e. by Producing rotating flux in the transformer.

1258

Describe the colour rendering properties of i) tungsten filament lamps ii) tubular fluorescent lamp

2118

What should be the voltage between Neutral and Ground in secondary side of the step down transformer (230 V to 110 V) with no load condition?

1149

sir i ve applied for hindustan petroleum and power grid india ltd..and the exams on feb 22.can you pls send model papers and tell how to prepare for those.i need to get into any of these for sure.....

1229

what r the safety measures in UPS ? explain all?

1185

What are the applications of the electric motors?

138

in star-delta tranformer,if the input of star connection is 400/7v 3 kva then what is the output of delta connection?

1175

whats the existence of reactive power and when it arises?

1154

Which type of air compressor is used now a days in the market. Keeping in mind of energy efficiency and maintenance points. Relevant documents may also be sent on mentioned email ids.

834

IF I KNOW THE AREA OF CROSS SECTION OFTHE WIRE , WATTAGE OF THE LOAD ,VOLTAGE SUPPLY WHAT IM GIVING TO THE LOAD AND ALSO POWER FACTOR OF LOAD ....... SO GIVE ME FOR WHAT AMOUNT OF CURRENT I SHOULD USE WHICH TYPE OF CABLE?

972

what is servo motor and how it works?

1305

What are the different towers used in 132kv transmission line? what are the differences between the P,R,S towers used in 132KV and detailed explanation

1029

What is the maximum operating temperature for a thermoplastic insulated cable?

162

How do we calculate the Out put voltage of generator, after the excitation is being given?

1066

33kv Rated output avilable in market (any where in india)

1186