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Topic :: Transformer





Transformer Interview Questions
Questions Answers Views Company eMail

what happen if the secondry winding of the transformer is having less no of turns compare to the primery winding.

2 4933

Please send specifications for 1000KVA dry type transformer or where I can get the specifications?

PSU,

2 5950

what efficiency of transformer at 100% load

Emerson,

2628

critical losses of transformer

EEEC,

3 6737

what efficiency at 70% loaded transformer

EEEC,

1 2908

does not the circulating current in a transformer affect the flux distribution in the transformer core

1 2512

Why we Specify Transformer rating 433 V Instead of 415V ?

ABB, ERA, Uddans,

8 39033

WHAT IS THE SIGNIFICANCE OF VECTOR GROUPS IN TRANSFORMER? WHAT WILL BE EFFECT WHEN PHASE DISPLACEMENT CHANGES IN TRANSFORMER?WHAT IS THE NEED TO BE PHASE SHIFT CHANGE BETWEEN THE PRIMARY AND SECONDARY WINDING

TCS,

1868

what is tertiary winding in transformer?What is its purpose?

Bhel,

18 106549

Why we are going for converter transformers for DC drives application instead of distribution transformer?

2091

How big (size) can the tertiary winding be in transformer? Can we load the tertiary winding, if yes then how much we can load it?

1 5359

What is an isolation transformer?Why do we need isolate circuits?Where do we use them?

2 6251

why use phase displacement in transformer.and effect of phase displacement on transformer

IOCL, ONGC,

2918

If i switch on a transformer but with no load connected to the secondary path.Is the transformer will burn?

5 8396

I have a 25kVA three phase transformer on our property. Will this transformer be large enough to run a large home with swimming pool, spa, 2 off full size reverse cycle air conditioners to service a 100 square house (10,000 square feet or 930 square metres)and the general power consumption of this house without upgrading to a 63kVA transformer.

1 5070




Related Topics


Un-Answered Questions { Transformer }

Difference between PowerPlay transformer and power play reports?

2565


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

2703


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?

2127


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

2133


Draw the line diagram of diffretial relay connected to transformer?

2500


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

2438


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

4398


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

2049


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

2425


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

2213


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?

1991


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

2027


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

2127


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

2009


what r the checklist while installing 500 kva transformer

2400