Electrical Engineering Interview Questions
Questions Answers Views Company eMail

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

892

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

1 3518

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

972

What is the lockout relay

994

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

940

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

895

how to difference between the HT< cables

L&T,

1 1822

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

964

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

884

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

943

how to calculate the current carring capacity of the conductor

1 1439

What is the function of retrip in busbar?

Getco,

1011

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,

1114

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

966

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

1144


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Un-Answered Questions { Electrical Engineering }

What aturn on methods of scr?

617


can any tell me why slope 40% and 80% is calculated in differential protection?

1378


what will happen if synchronous machine rotor fed from single phase ac supply 

1222


What is the formuala to calculate the rating of motor protection circuit breaker

1637


impliment (AB)`+C to transistor representation

1230






what is mean by Digital Logic Meter (DLM)

1770


How is magnetic leakage reduced?

616


1. transformer design formula ? 2. how to calculate the primary turns and secondry turns ? 3. core types ? 4. how to find the primary current and secondry current ? 5. how to calculate the stacking factor ? 6. range of fulx density ?

10045


What are your future plans for the company if permanently employed?

1601


What is purpose of reactor?.What is different between line and bus reactor?

1395


How line capacitance & line inductance varies with increase in height tower.

1788


what will be the min and max voltage flow from neutral to earth?

865


Could the power factor on electrical system can affect the registration of the kwhr meter or the CT/PT? 

1369


I am getting above 60 V as open delta voltage against single phase unit ICT at tertiary delta formed and ICT getting trippped on NDR. ICT tested and found in order. PTs provided on tertiary are tested and in order. what may be the reason?

1422


what is the calculation method to design core and winding of a 200kva 3phase distribution transformer?

1864