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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

What is Procedure the procedure to select CT's & PT's in 66kV and above substation?

Infotech, Vijai Electricals,

3 11636

what is extra low voltage system

3 10407

WHY EXCITATION OF SYNCHRONOUS MACHINE IS DC NOT AC

NTPC,

8 16181

Why (In India) we preferably go for +-30 deg connection of transformer? what are the advantages in this connection?

2 4528

operation of diesel generator

1974

What is Antipumping Function & If we have C.T how we find the Ratio ?

1974

How to Convert Gen KW to H.T amps ?

2 6887

at which voltage level arcing ground is occurs ??????????

TATA,

1997

why test lamp didn't glow across 500v megger?

Aurobindo,

4 7771

why we are testing cables with DC supply not with AC supply?

Aurobindo, DEWA, L&T,

9 30750

What is the Difference Between resistance and resistivity?

Sun Pharma,

2 7359

what is the different between surgearrester and lighting arrester

HPCL,

4 8196

why exterrnal C.T. protection is used even though ACB& VCB is having inbuild C.T. protection?

2 5241

what is the different bitween ETP & WTP

Square Pharma,

1 9895

According to IEC60034-14, When the vibration monitoring system required for motor Bearing. above which KW, it is required? and for what type of bearing the vibration probe is provided.

4118


Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

Generator,motor and alternator Working principal Please explain easily

1424


How much minimum insulation required between 11kv/3.3kv transformer windings?

2389


What happens when ac supply is given as excitation voltage instead of dc supply

3710


In which of the following case, the rotating magnetic field is reversed? A regenerative breaking B plugging C dynamic breaking D forward motoring

1910


What test must you do before powering up a circuit that you have been working on?

1801


plz tell me,ht and lt panel terminals in substations explain beiefly

2879


What are the factors influence the choice of an electrc drive?

2029


why the rotor current becomes in steady state during high slip region? please verify with equations.

1930


A 1F capacitor is charged to 100V initially. A 1H inductor is connected accros the capacitor througha a switch. The current in the circiut when the switch is closed is____

2283


Why two phase welding machine is used instead of three phase welding machine.

1859


Differentiate between Zero and Negative sequence current

1866


Damping resistor provided in open delta (tartiary) winding of a measuring PT at the incoming of a MV inverter drive panel is getting heated up. Can any body explain the reasons and suggest the remedy?

2993


any one please tell taht what type questions will be asked in BHEL interview, i am having interview on 24th Dec, please send this to mail pradeepsistam@yahoo.co.in

1942


How we can change the direction of rotation of Induction motor? Prove it using graphical

2115


What type of pipe material G.I or M.S is used for sprinkler system?

9124