Voltage Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Topic :: Voltage

Voltage Interview Questions

Questions Answers Views Company eMail

In a 132KV Grid Station where voltage level is 132KV, here, why the rating of Surge arrests installed 120KV ?

1 4744

If any cable burnt how can we identify it burnt by high current of high voltage?

2450

Why we use Delta connection in the secondary side of a High Voltage transformer?

1 3827

how do you choose the cable size as per amps rating & the voltage drop for the same.

C&W,

1782

3ph line voltage 220v, how can run a 220v single ph motor or Light?

2 3563

when the flux enters into saturation mode then what will be the secondary voltage of the normal t/f?....high or low ? explain ...how?

1 2831

how to calculate the power factor when instantaneous voltage and current has harmonics in it ?

Sandhar,

1961

Why neutral shows voltage with earth ?

MRF,

2 4663

According to ohms law voltage proportional to current, then why should current rating is low with high voltage rating in transformer?

KEC,

5 7880

How much voltage we are using at switches?

Edac,

4 6137

why when i start my diesel generator it takes 1 minute or less then stop, and i checked the oil sensor is ok and when the generator start i can get 220 voltage but it it is stop after 1 minute or less, how can i solve this problem?

1 2623

What is the value of system voltage?

Bhel,

2 5044

alternator make voltage 120 degree. as we change degree ex. 100 and 160 or other degree then voltage make. yes or no and why

1518

Why transmission line carryiny high voltage and low current?

apspdcl, Universal Power Controls,

3 4978

In field side transmitter voltage droping here no loose connection then what will happen?

Edac,

2 4824

Related Topics

Voltage

Un-Answered Questions { Voltage }

How does a Bandgap Voltage reference work?

3907

How about voltage source?

2271

How do you size NMOS and PMOS transistors to increase the threshold voltage?

3035

Explain the basic circuits for a current- and voltage- clamp set-up.

1800

What types of I/O have you designed? What were their size? Speed? Configuration? Voltage requirements?

2442

I just want to convert the voltage into current i.e. suppose I have 750V & 1A AC power then I want to convert it into 12V & 62A DC power only difficulty is that I don't want to use the tranceformer. Simply to say, I want to make the step-down without using tranceformer. Please, give me some ideas. And also I want the relation between Magnetic Induction & Weight of the body can be levitated. Or I can say, how much of magnetic induction requires to lift 500gms weight? I am heartily thankful to you.

2214

iam using DM 3251 voltmeter(1 percent accuracy)for 11KV system PT ratio is 11KV/110V.can anybody explain what is the max and min voltage deviation.

2255

how define the torque in ac drive. from electrical side in the drive friquency ,voltage and current three factor is there.

2228

can we calculate the voltage level for microwave energy which is using for our mobile communication?

2813

Is it possible to calculate a voltage for microwave energy generating in oven? Is there any formula relating frequency and voltage and it should be independent of speed?

2298

Formulae for calculating the transmission line losses for different voltage levels

2177

Why the dc voltage drop during starting of emergency lube oil pump? The Voltage drop from 135kv to 125 kv for one min. before re-establish to 135kv?

2304

What si the d/f b/w KVA & KWH, kvarh & kvar, kwh & kvar phase voltage & line voltage

6163

What is the difference between Static and servo controlled voltage stablizer?

2181

What is the rating factor for copper cable ( Specific value according to the type of laying ) & the voltage drop?

1848