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

Topic :: Voltage

Voltage Interview Questions

Questions Answers Views Company eMail

what is capacitor voltage transformer?? how it is different from potential transformer?

NHPC,

2185

why the voltage transmission is always in a multiple of 11? e.g. 110 V, 220 V, 33 kVA, 11 kVA

IAF, MahaGenco,

16 45992

relation between power station capacity and voltage level?

2058

low voltage distribution is done by a)3 phase 3 wire b)3 phase 4 wire c)single phase

3 5470

% voltage variation in distribution a)1% b)5% c)10% d)15%

2 3887

All the voltage drops and the source voltage added together in a series circuit is equal to

2 4085

how does a shunt reactor maintains the bus voltage???

2061

low voltage grounding is done by?? 1)solidly gnd 2)ressistance 3)reactance

1 3370

how step down and step up voltage is occured in transformer

3 4984

why in india the voltage generate multiply by 11,,,like 220v,440v,11kv,33kv,66kv,220kv,

NTPC, Servotech, Tata Power,

3 12739

in which form materials or conductors takes the voltage?

RRB,

3 6160

why the Parameters : Base Voltage & Maximum Voltage can't be equal in value in a VFD (Variable Frequency Drive) ? How much the base voltage would be lower than the maximum voltage ? If 400 V is the 3 phase output of a VFD ... then what should be the base voltage ? thanks a lot

Yaskawa,

1 3936

What will happened, if field voltage change with 220 voltage to 110 voltage for a dc shunt motor?

1 3271

why and how voltage sharing in transformer, during magnetic balance test ?

ME,

2352

1.Why we use choke?If we use for high starting voltage then different type choke gives different voltage. Is it correct?

Dalkia, Luminous,

2 5628

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