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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 4718

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

PSU,

2 5763

what efficiency of transformer at 100% load

Emerson,

2504

critical losses of transformer

EEEC,

3 6444

what efficiency at 70% loaded transformer

EEEC,

1 2747

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

1 2321

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

ABB, ERA, Uddans,

8 38174

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,

1746

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

Bhel,

18 105438

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

1944

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 5190

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

2 6046

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

IOCL, ONGC,

2818

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

5 8021

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 4908




Related Topics


Un-Answered Questions { Transformer }

Difference between PowerPlay transformer and power play reports?

2485


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

2600


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?

2035


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

2039


Draw the line diagram of diffretial relay connected to transformer?

2385


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

2327


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

4266


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

1949


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

2283


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

2076


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?

1889


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

1939


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

2023


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

1907


what r the checklist while installing 500 kva transformer

2270