Electrical Engineering Interview Questions

What is P.F? Formula for calculating PF in HT side?

5860

What is VCB? Where it is installed?

29703

What is metering cubical? What is the use?

HSL,

11515

What are safety seals?

HSL,

2124

What is PF? Formula for calculating PF in HT side?

HSL,

13298

What is Transformer?

HSL,

11549

What are the types of Transformer? Name them.

Bhel, NTPC, HSL,

13123

Which Transformer is commonly used for power distribution?

HSL,

11467

What is HT? And specify the range of voltage?

HSL,

4890

What is LT? And specify the range of voltage?

HSL,

17648

Which level of the Transformer oil got dielectric strengh? And why?

HSL,

913

What is AVR? Explain the function AVR?

NHPC, HSL,

59203

formula for cable size calculation for current?

35654

sir i ve applied for hindustan petroleum and power grid india ltd..and the exams on feb 22.can you pls send model papers and tell how to prepare for those.i need to get into any of these for sure.....

961

IN PLATE EARTHING , PLATE LAID IN VERTICAL POSITION ,WHY HORIZONTAL WHY NOT

5187

Un-Answered Questions { Electrical Engineering }

i want design of D.C.MOTOR 1HP 960RPM AND 2HP 960RPM ITS URRGENT

773

how we control automatic generator i'e with to supply (main supply and local generator) when the main supply was break to supply the local supply automatically to begin supplying power.I now this control circuit is the combination of contactor time delay contactor switch and overload relay .but my question is how we combine those component thank you

825

What is the basis for selecting Vk/2 or Vk/4 for REF and Differential protection of Transformer and What is the significance of magnetising current

1100

In our factory so many iron pillors are exists for supporting the shed/Hangar. If do more no of earthings at one piller instead of doing more earth pits in many locations and running earth strip around the hanger, I can save the money. Please suggest this method is acceptable as per Is specifications though the Earth resitance of the farthest piller is with in the limits as per IS specifications.

960

i m electrical diploma holder i want to do plc \$ Scada some body tell me which insitute is best for me near chandigarh

1993

what is protection class current transformer.

2450

how to calculate maximum current

842

Why power factor should not be in leading (capacitive) mode of any load.

4135

How to design pavement quality concrete by using C.R.C.P Method

584

how can check the resistance of battery contact?

1045

what will happen if dc is supplied in acb or mccb or other circuit breakers?

383

In siemens S7-300 PLC, what is function and function block ? What is the difference between them ? When to use function and when to use function block ?

1934

A 400KVA transformer has 400 Hz frequency. If the frequency is changed to 50 Hz, then what will be the new KVA rating?

559

explain comutator action in detail.thanks

871

How to Calculate Current Rating of SDFU (Switch Disconnector Fuse unit) for Protectionof Capacitor Bank connected to Busbar of 800Amp,in LV side of 11/0.433KV, 250KVA Transformer?

3278