Electrical Engineering Interview Questions
Questions Answers Views Company eMail

is electrons really flow or they just vibrate at their position?

Bhel, HAL,

5 7729

Will it be OK to connect a 5MVA 33/6.6kV Ynd11 Transformer to a Star connected Motor. Or on other words connecting a Delta to a Star. I have another 30MVA 33/11 Dyn11 and would it be practical to convert it to Dd0 consequently converting the Voltage Ratio to 33/6.35kV Dd0.

1 4561

Why mostly conductor made by 7 nos wire?

2 3488

If not maintained 3 phase clearance,what happened ?

2 2891

how to calculate 3 phase clearance in Tower line , 33& 11 KV Line and LT Line.

1 2785

what is the difference between neutral and earth?

2 4503

why mostly conductor made by 7 nos wire?

1 3044

What happened ,If 3 phase clearance not maintained in 33KV Line,11KV LIne etc?

1795

How to calculate phase to phase difference ?

1695

How to calculate phase to phase difference in 33KV Line ,11KV Line etc.

1 7212

what will happen if capacitor bank is used in generation side?

2 4874

In synchronous motor, how the field current is related to armature current..i know its inversely proportional..but concept wise...i was nt clear....pls help me...

Siemens,

1546

how can we calculate the ratio of caustic soda and water in lrs.

5143

what is hourly consumption of coal in therma plant

NPCIL,

2 4026

if field winding of synchronous generator are shorted on each other will it start or burn or run for short time like induction motor

1 2355


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Un-Answered Questions { Electrical Engineering }

What is the difference between relays and contactor construction wise?

1593


The ripple frequency in output of fullwave bridge rectifier is a. Half the input b. Twice the input c. Same as input

1788


Is MEN and RCD related to each other ?? IF yes then how??

1444


what percent do you derate your copper wire when you change from copper buss to copper wire

1523


What is the function of under voltage release ?

969






What is diversity factor in electric installations?

683


Give details on how you intend to handle a challenging position you are posted to manage unexpectedly as a company staff?

2859


How to calulate Locked rotor amper(LRA) for compressor type motors?

1266


when measure the core loss of three phase distribution transformer or three phase reactor loss, one phase shown negative watt loss. why??

1492


Explain The Application Of Storage Batteries?

667


which connection is safer series or parallel?usually which connection we prefer at home?

8215


In an ACB shunt trip coil and undervoltage coil operated normally( breaker open and charged). But closing coil not operating untill manually discharge and recharging. Any help.

1255


wish of these transformer uses oil?

1142


how u select control transformer for a mccb panels or any panels?for expample we hav 440 volts maim supply and control volts is 230v?

1639


What are dcs and plc?

653