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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

what are factors to be consider to design a HT & LT motor?

1 2409

hot water tank,top element 240v across,the bottom 120v across,why?

1 2280

why capacitor bank is not used in generator power

Caterpillar,

7 19000

Can I Drain A Oil For Sample When The Transformer is Running? (Charged)

2 4000

What is the difference between Delta & Wye windings?

1155

what are factors to be consider to design a HT & LT motor?

1378

In ac motor,when dc supply is given what happend to the motor?

3 3066

what are the materials used in HRC fuse

Bhel,

3 10863

why we use shunt in a rectifier system ?

1 2817

what is bausbar?

Essar,

4 4597

why vector group is ued

2 2967

IF I USED VVVF DRIVE IN FAN APPLICATION MOTOR IN 6.6 KV ( 700 KW) MOTOR & DURING NORMAL RUN OPERATION TIME IF RPM SUDDENLY REDUCE IN MOTOR BY DRIVE(E. MOTOR RPM REDUCE SUDENLY 687 TO 550 RPM) WAHT WILL BE HAPPEND IN DRIVE

1 1621

defult setting in p220 micom motor proction relay for 11kv,640kw,f.l.a.-40a,1440rpm ht motor?

2703

what is level 2 automation?

2233

what is distribution board?

1408


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Un-Answered Questions { Electrical Engineering }

What are electric motors?

203


1.how many types of relays? 2.difference between ATS& STS?

1192


From reading, Under voltage relay used also as phase sequence relay now, Why I use under voltage and phase sequence relay in the same circuit (ATS)?

926


In HVDC LINE RECTIFIER CONTROL ON CONSTANT CURRENT AND INVERTER CONTROL CONSTANT EXITATION ANGLE CONTROL BUT HOW INVERTER CONTROL CONSTANT CURRENT?

1075


How much load can take a 16 mm aluminum cable 3 phase

850






should %impedance be high or low in a power transformer? if so why?

1054


what are all types of cross section in AC cables?

1430


how external lighting design? please give examples?

1013


what is meant by re-rolling motor? how it differs from standard motor?

1028


what is the benefit of floating our DC source? if i have two floating DC source of which 1 has a ref voltage of -21VDC and the other of -18VDC. can it be connected in parallel to share a common ref voltage? if not, how do i make both sources to be of common ref voltage? tks

1015


Y phase plates are used in transmission line??? what is there need???

1967


what is the reactive power what is the use of it in system

1191


How to know any size of cable if there are not written on cable? Answer must be theurical not by experience.

1258


Why do we need a separate control desk & PLC control panel in Boiler plant or coal handling plant? Can we provide cost effective Control desk cum PLC panel. Is there is an specific need for control desk.. kindly advice.

1417


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.

1023