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Electrical Engineering Interview Questions
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WHY THE RATINGS OF TRASNFORMER IS IN KVA?

Jindal,

5 7229

What is main cause of cable's terminal point burned in Lug on high temperature although lug and cable selection is ok as per stantard and also tightness is ok as per situation. so please take in deep and tell correct answer thanku.

 1 7644

How do we calculate the maximum amount of current in a 300 SQ.MM cable ?

Roto Power,

1 2798

If the maximum demand is 120 KVA in a building, then what is the Current taken according to load given ? Formula for it ?

 3 5727

Is a contactor (or master relay) required between incoming lines and a VFD? The question goes to safety. If a contactor were used before the VFD and an e-stop engaged then the motor will coast to a stop (i.e. VFD loses power) instead of stopping much faster if the VFD braking fucntion were used. It would make more sense to keep power on the VFD.

Pride Hotels,

1708

how the frequency was generated in power station

 2 4018

As per which Indian Standard induction motors are manufactured?

 2 3976

Who we calculate the generator NGR resistant, generator voltage 11 KV ?

ABB,

2 4685

if a motor is running at 1500rpm then how you can find its HP

Construction,

1 3958

WHERE NEUTRAL WIRE IS CONNECTED AT DOMESTIC TO TRANSMISSION LINE(SINGLE PHASE TO THREE PHASE)

 1452

i want wipro vlsi placement pattern please send me

 1424

calotropis is an example of the following phyllotaxy

APGenco,

1 6830

Radio Carbon dating is used in a) find diseases b) find the age of relics c) find the carbon content in the atmosphere d) none of these

 2 3562

How to improve insulation resistance of Motor

2 7195

why a single phase motor of same rating takes more amps than the three phase motor? as single phase motor at 230v takes 5amp per HP while 3 p motor takes 2.5amp per hp at 230v.

 1 4099

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Un-Answered Questions { Electrical Engineering }

What are the types of control system?

743

we are going to install a solar PV site and how can we calculate PV Solar Panel Efficiency, can anybody tell me complete method for its calculation.

1680

how can we change the phase angle b/w two phase?

4412

what is transistors comprised of?

755

11KV AND 22KV NETWORK KW CAPACITY IN RING AND RADIAL?

1679




In a flange coupling, the flange bolts are designed for

811

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.....

1838

explain transformer ct connection?

1729

Please elaborate th´evenin’s theorem?

829

State nyquist stability criterion.

764

Why frequency changes due to load variation in power system ? i.e why when load increases frequency decreases?

1606

write encoder 17 pins details? pin a;b+, pin b;w+,..pin s & t. what is the meaning of b+, w+? explain;

1812

number of I/O devices in siemense plc

1759

how to measure dc earth leakage current?

2706

ho can we calculate the conductor insulation value according to their ratings like voltage,current etc.how insulation value related with voltage,current and power of amachine

1691

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