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Electrical Engineering Interview Questions

What is the difference between earth resistance and earth electrode resistance?

9778

how many types of dc batteries standards are present?

3267

which power plant has high load factor?

15808

please explain power factor in simple words.....

4871

what is meant by Hrc fuses.?In the distribution system different rating hrc fuses are used for tranformer(which is 3k,6k,10k,15k etc).what is k?.plz any brother tell me about k?

3888

why would amp draw on neutral wire be as much as amp draw on the hot leg.

1104

This is urgent!! What is a Thyristor-based 3-ways selector switch with Zero crossing control? how does it operate and where is it mostly found in a system?

1110

how to compute kvar in substation feeder to improve power factor and sending voltage

1202

define the power factor in one word

11559

1000 W bulb takes 4.16 Amps at 240 volt then what will be the KWH & if i am using 1000 W bulb at 180 Volt the amps will be 5.55 then what will be KWH????????????????

3866

How do we calculate the Out put voltage of generator, after the excitation is being given?

1066

What is the simplest formula to calculate the rotor diameter of a synchronous generator?

PEI,

1426

How do we calculate the out Put voltage of generator, after excitation being given?

3234

We have one Energy meter for Measuring the voltage,current,power,energy(KWH,KVARH,KVAH) & power factor.The problem is that the meter does not show whether the PF is lagging or leading.So i want to know that is there any way or calculation to find out that whether the PF sign (lagging or leading) depending upon the above mentioned parameters?

6522

How do you select a cable size(Cu & Al) for a particular load?

4307

Un-Answered Questions { Electrical Engineering }

Define gain margin?

155

If a 3 phase induction motor is in off condition in the conveyor and rotor of the motor keeps moving with the conveyor than the resistance of windings of motor varies. why is it so ??

1041

how is find out kwh step by step

837

what is mind in cable

1088

design of IGBT firing circuit for 11KV

1597

How many types are using in 220kv/400 kv swith yard

1294

what does mean of RCT and STR in diffrential CT?

3285

Two electric lamps 40 W, 220 V each are connected in series across 220 V. What is the power consumed by the connection?

525

Give atleast 20 alternating current apparatus and devices.

759

I want definition for ABT Meter (Availability Based tariff) ?

1070

What is Percentage impedence of a transformer? why it is expressed at a percentage? what is the importance of percentage impedence in case of a transformer?

972

What is The Resistance Formula

219

what is transient voltage?

1279

whatis the commertial spec. of distribution boards ?

1111

what are the assumptions made in swineburne's test?

1169