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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

What is the PIU.

Jindal,

1 1452

PIU how does work?

1419

What is the Power Plant.

Sail,

5 4068

How many types of AC current?

8 14875

As we know,charged clouds(from which lightning stroke initiates)may be charged with either +ve charge or -ve charge. Now say one cluster of cloude is fully charged with +ve charge & another cluster is fully charged with -ve charge. In the sky these two cluster of charged clouds have come in such a distance that, if they come clouser by some few yeards then the lightning discharge will take place between these two cluster of clouds. Under such a situation an Aircraft came inbetween. what happend??

5 3883

what is the function of NAT & NAC contacts in breaker control switch (TNC)??

2 19045

what is the difference betn earthed and unearthed cables which is commanly used why?

Bhel, Power Grid,

2 5537

In electrostatic precipitator why positive terminal of tranformer rectifier unit is grounded?

2 10068

I have tow 200 KVA UPS, both are in parallel mode.My question is that, both are running on battery when power fail, if one of them fail (Eg rectifire fails or some other reason), at thet time reverse power will come to faild ups if it comes then it will harm to failed ups or not? if not then how it protects to faied ups????????????????

1 3932

In ups static switch if i gives the supply at output end it will open the circuit in stactic switch or not if it will open then how it operates.

1324

what is the higest transmission voltage and generated voltage in india

14 24034

I want to know the standards for earthing system as per IEC, BIS & IEEE.

2 13626

Can anybody post questions asked in Engineers India Limited Interview? Thanks in advance.

Engineers India Limited,

1450

what is the difference between the 94 lockout relay and 86 lock out relay. I have noticed that the 94 lockout relay is activated when the distance realy is activated and 86 is activated when the 87T differential is activated. but why can't the same lockouts be used for both the protection schemes

ABB,

10 54439

What is the difference between AMF panel and DG Synchronization panel? please define the working of both the panels?

ABB, Power Grid,

3 28878


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Un-Answered Questions { Electrical Engineering }

when will be the iocl interview results ifaced the interview on september 8 th

1111


Why only sinusoidal ac voltages are generated?why not triangular or sawtooth?

1102


what is the effect of earth on capacitance in 3-phase and 1- phase transmission line?

1431


I WANT TO INSTALL LIGHTING ARRESTOR ABOVE 20 FEET HEIGHT INDUSTRIAL BUILDING. NOW IT WAS 15 FEET HEIGHT HOW MUCH DISTANCE IT WILL COVER & HOW TO CALCULAT THE DISTANCE COVER BY THE ARRESTOR

1030


What is a diode?

144






In a voltage-controlled current source A A current booster is never used B The load is always floated C A stiff current source drives the load D The load current equals Isc

955


what is the difference between an alternator and a synchronous motor

1074


how much earthings are provided for 22KV HT Metering Kiosk

1011


what is per unit calculation?looking for simple and strong explanation thk u

1552


WHY EXCITER PHASE SEQUENCE ARE OPPOSITE THAN STATOR SUPPLY PHASE SEQUENCE IN SYNCHRONOUS MOTOR >

1011


How we select the vector group of 3phase power transformer?

1495


As we know induction squirrel cage motor torque Directly praprortinal to applied voltage in star connection & delta also. If I connect 55KW Motor to DOL starter in load condition does motor withstand the load & what will be the current withdrawn ? motor will not fail ?

959


What are the protections for safe running of electric generator?

1298


please give me all the Alarm .Trip ,Safety Relays & Conditions of Diesel-generators mail me on ashokbabunhce@gmail.com

1026


What is the difference between alternator and generator?

190