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Topic :: Transformer





Transformer Interview Questions
Questions Answers Views Company eMail

how will reduce the voltage. if 12volt/250ma transformer toreduce 6 volt

1969

if we supply DC power to AC transformer then what its result?

15 17707

can d.c.transformer exist? if yes then what its max. rating?

6 8655

effect of single phase transformer on full load current?

2 4958

figure of phasor diagram of transformer when full load or no load ?

Swastik, TCS,

1 11938

how will i find Transformer rating if supply voltage is 11k.v and how will i find incomer if transformer rating is 12MVA

3 5765

if we increase the frequency given to a transformer then wat will happen to the transformer size, whether it will increase?

4 9152

How calculate the Transformer Impedence With Example

3 7059

in 132 kv transformer , in which range of transformer oil bdv required ? if it has around 50-55 , then how it was insulated the winding ?

Voltamp,

3 13094

WHY IS THE NO LOAD CURRENT SMALL FOR A TRANSFORMER COMPARED TO OTHER ROTATING ELECTRICAL MACHINES??

1 4397

What should be the amps for a MV fuses for transformer 630kVA 20(10)/0.4 kV

2038

what is die electric strnth of transformer ?

2187

why transformer are rated in KVA not in watt?

DMRC, L&T, TCS,

7 18052

A distribution transformer giving afrequency of 200HZ, where it is rated for 50HZ. when it will occure?

2 4832

6.6Kv feeder feeding tow step down transformers-415V-,what the possible consideration for parrellel operation?

1 3426




Related Topics


Un-Answered Questions { Transformer }

Difference between PowerPlay transformer and power play reports?

2517


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

2657


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?

2082


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

2092


Draw the line diagram of diffretial relay connected to transformer?

2438


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

2376


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

4323


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

1997


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

2354


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

2134


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?

1927


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

1978


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

2078


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

1953


what r the checklist while installing 500 kva transformer

2330