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Electrical Engineering Interview Questions

what will be the minimum megger value for 132 Kv (earthed) potential transformer

5949

Why there is not any reactive power in DC although it causes magnetic field.

17059

we erected (48HP)63kva dist transformer and incoming from 11kv line,out going is 415v domastic line 2.04 km.for that actual output current is 84A. what are the losses and final output current.

3257

how we find transformer capacity by ohm

1295

In Fluorescent tube there is a writing like 6500k . what this 6500k represents?

4244

For a CT the number of turns in the primary winding is.........

5741

Is it necessary to carry out sheath test after cable jointing? If the value is zero of such instance , is it ok to energize the cable?

2868

what are the differenc between vcb and sf6 breakers

23527

what is the preventive @ predective maintenance

3039

where we take earth in hill station

2396

how can electricity is produced without water

6667

What is the size of electrical cable to be used for a space heater single phase 240V ?

3465

How to calculate the total number cells required for a particular KVA UPS system?

2631

what are adantages of OC and SC test over the load test?

8167

How the field flux is controlled in DC drive ?

TATA,

3745

Un-Answered Questions { Electrical Engineering }

What are Contactors? How they works and what its highest rating?

1114

How to Calculate Transformer Earthing Electrode Rod Size both Body and neutral Earthing ? Any Standard Formula? Please Suggted

713

how mass curve differs from hydrograph.

853

How can we calculate the efficiency of a Running (On-Load) Motor ? What parameters are required and what is the method ?

1147

FEINGING DECREASES THE FLUX DENSITY IN THE AIR GAP. HOW?

1173

What tests should i carry over on a newly rewinded DC Generator with voltage rating of 38 volts and current rating of 350 amps, to certify that the machine is OK?

1070

What is meant by cold loop test in instrument

1721

What is the Temperature to be set in Thermostat provided in Marshalling box of the Transformer / Motor.

1844

what is the string efficiency

3839

what is the function of capacitor duty contactor in an capacitor panel???

3175

Why generation voltage in thermal power plant is between 11kv to 33kv?

223

i m doing DEEE in part time,can i join regular cources in BE,,IF i join what the cources can i select like (civil,ece,IT) ,,kindly advice

1154

how to decide choke rating for drive?

1471

Differentiate between real and apparent power?

233

State the factors, for the choice of electrical system for an aero turbine.

264