Electrical Engineering Interview Questions
Questions Answers Views Company eMail

what is the function of Moulded case circuit breaker, why it is called Moulded?

955

Why soda is added with water in Lrs of Sliipring motor…to Increase or decrease resistance of water?

1 3669

What's the difference between non break power supply and non break non short break power supply

1011

What is the lockout relay

1043

What is the test block protection relay if any body know plz explained

985

Can a generator runs after getting 1st stator earth fault.

934

how to difference between the HT< cables

L&T,

1 1902

How work of capacitor in dc supply...???

1012

can anyone explain the star-delta motor control wiring ,which wire go where and how they operate?

926

what will happen when the dc supply is given to the capacitor?

989

how to calculate the current carring capacity of the conductor

1 1516

What is the function of retrip in busbar?

Getco,

1058

what is the disadvantages of common earthing for AC and DC equipment? (i am talking about inverter control room and inverter duty transformer earthing is common...?)

TATA,

1155

what are the tests comes under the type test, what tests comes under routine tests.

1012

what is the calculation formula for motor starting torque,running torque, running torque.

1196


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Un-Answered Questions { Electrical Engineering }

Why slip ring ind. motor power consumption is low compare to induction motor .same 90 kw motor used same load output

1223


How to arrange a hous hold earthing system to keep minimum earth resistance( below 7ohms).

1685


how can service sitting be setted for MCCB?Example for sittings IR (CURRENT RATING),IS(CURRENT STARTING)IO (current operating)?

1376


What is resonant peak?

657


How can we measure the residual voltage in dc machines?

1196






what is capacitor voltage transformer?? how it is different from potential transformer?

1671


what is consequences of neutral and earth connect?

1627


errection check list for transformer maintenance

2155


Form S and "c" license application both are same? @ tneb portal

1233


What is meant by reset level of the relay?

660


how can we select the appropriate VCB ?

1794


why various test are performed on electrical panels & power cables before commissioning on site & what are these test???

1498


a 100mva,400/200v transformer has leakage impdce of 10% draws a steady state line currentof---------------

1428


How to select the proper VSD to operate high inertial load

1250


what is difference between earthingpits,earthing grid & earthing mess?

2032