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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

what is dielectric heating

 1 3436

what is relay

 8 8103

what is balanced beam relay

 1 13699

what is induction relay

 1 5624

in 1-phase 230v,how in 3-phase 440v. in each phase in between 230v.

 2342

can I connect step down transformer(25KvA,240V Phase to phase)to output of online UPS(15KvA,440V PHASE TO PHASE) Load connect to TRANSFORMER is 13KvA,240V PHASE TO PHASE. please brief if it is wrong

DRJ ARDE,

1 4106

What will the effect on a motor designed at 60 HZ, and operated on 50 HZ ??

 8 9555

in 132kv substation CRT means

 2194

What the purpose of transient fault recoredr in substation

NCC,

2 4961

There are Two questions about Steam Turbine Generator... What is HRSG bypass of LP, HP used for in power generation? In particualar, in the event that fault of HP bypass, there would be STG TRIP in operation but none on the LP bypass fault...what's the reason ?

1796

how calculate external illumintion in a compound area. for e.g. there is one open park having 600m2 area and i have to put 40w flouresent tube fitting with pole. how shall i calculate the numbers of fitting.

 1 2744

How will you explain transformer action in case of 3-phase induction motor?

 4 5153

what is first pole to clear factor

 1 8095

Brief working principle of fluorcent tubelight,function of starter & choke.

Havells,

3 22600

why field winding is placed on rotor winding not on stator winding in case of synchronous machine?

HAL, TATA,

13 33839

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Un-Answered Questions { Electrical Engineering }

For RCD (Residual current device) Icu is defined. How i can find Ics for them?

1587

What is use of starter and choke in tube light

1284

what is the main difference between power devices and signal devices

1682

Whether IP65 enclosure box blocks ventilation if driver for LED have to enclosed inside IP65 box

1571

As per the Anchor capstan motor specification, full load current is 200A. starting current is 1750 A and acceleration time is less than 8 seconds. Please guide for selection of cable size.

1423




why we can stote dc? why we cant store ac?

1598

How to see the inductance in a transmission lines

1653

while starting a liquid starter ,is there any volage drop on water/soda on tank.can we touch the tank on starting?

1430

On Which Pressure PRV is operated.

1266

What is K-rated transformer? What is the use of it? What can be the size(pls provide calculation if possible) of K- factor transformer for 550kW,690V motor operating with drive (VFD)?

1784

What is the minimum distance to be maintained in between HT panel and LT panel and Instrument panel as per IEC and NEC standards?

1223

What is the tipical Online UPS input voltage for 20 KVA load ( 3 Phase or 1 Phase )? Why ? Explain it...?

2182

What are the no-load losses for the 11000/415V transformer with the following rated capacity? 1.1500 kVA 2. 2000 kVA 3. 2500 kVA 4. 3000 kVA

1146

How i can calculate current of cable according to ares?

1405

Phase control and integral control are used for?

1766

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