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Topic :: Transformer





Transformer Interview Questions
Questions Answers Views Company eMail

why transformer rated in KVA not in KW ? we know that W= v*i

6 9693

My requirement is 1VA,50/5A Current Transformer for Metering .If I select 15VA , 50/5A CT.Is there any possibility of Technical Problem ?

6 9353

WHY TRANSFORMERS ARE RATED IN 11KV 22KV 33KV Instead off 10kv 20kv 30kv

5 23018

WHAT IS PRINCIPLE OF TRANSFORMER

10 12289

Is it mandatory statutory requirement of transformer oil filtration annualy despite oil is withstanding required dieelectrical strenth and all others parameters

5 13282

In a three phase transformer(delta/star connected)when i touch one end of the bulb in any one phase and other end to earth..will the bulb glow or not..if not why?..i'm touching the bulb in star connected side...

6 9438

importance of air gap in transformer

5 11990


motor and transformer working with same principle so why motor rotor was roted and transformer not roted

ABB, Suzlon,

9 14663

If the load of transformer is getting more than its rating,,,than how to overcome this problem? Suppose thee rating of transformer is 315kva and the load is going beyond than the rating say around load: 352kva... Than how can we solve this problem without deducting the load.

Hyundai,

14 23685

how to calculate optimum loading for transformer?

6 22295

what is impedence (Z) of transformer, what indicate in transformer , which perameter indicate in transformer

CTS, Suzlon,

5 13184

Motor and transformer working with same principle so why motor rotates while transformer not?

7 11201

I am getting differential earth fault in my transformer realy , i have checked all its CT & control wiring but do not get fault, Please help

6 8260

In a Dyn11 transformer, how are the 3 windings of the delta connected? Assume that R1-R2, Y1-Y2, B1-B2 are the 3 windings on the HV side.

3 7605




Related Topics


Un-Answered Questions { Transformer }

Difference between PowerPlay transformer and power play reports?

2557


All tape of electrical questions Answers tape of motor transformer e.o.t crane

2696


If one tertiary phase i.e. R,Y or B is earthed of a loaded type tertiary delta connected (Without load)of a power auto transformer, what is its advantage/disadvantage?

2122


what is R Core Transformer. how it differs from normal transformers. dont search in net and post the answer.

2122


Draw the line diagram of diffretial relay connected to transformer?

2488


How to select the earthing transformer,for DELTA TO DELTA TRANSFORMER OR ALTERNATOR SIDE.Pls post your answers and calculation.

2425


Why Transformer Neutral having one earth pit ( more earth electrode resistance) whereas body have many earth pit ( less earth electrode resistance)?

4387


how we arrange the hv side with delta connection in case 33/11kv of transformer.

2041


what is the criterion for selecting vector group of Transformers ? i mean how to decide vector group of Generator transformer, substation trasformer and transformer at consumer end

2409


i need the curve duty cycle and amper for (150 kva @50% dyty cycle) transformer turn ratio :19 and vin 400

2202


what is the effect of connecting three phase supply lines to three phase auto transformer output terminals through a fuse of 10Amp and a circuit breaker (MCB). Is this connection permanently destroy the transformer?

1975


How is the percentage impedence of a transformer fixed at design stage???

2018


How a capacitor discharge weld power supply works? what is the use of a pulse transformer?

2117


what is a pulse transformer? how rise time of pulse changes when ever the voltage changes?

1995


what r the checklist while installing 500 kva transformer

2377