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Topic :: Transformer





Transformer Interview Questions
Questions Answers Views Company eMail

what is the use of vector group in transformer. means what r the application of various vector groups?

5 13213

sometimes, eventhough the HV side of the transformer is opened there is a voltage in LV side .How is it possible?

4 7405

what is the difference between power transformer & distribution transformer and what are their ratings respectively?

4 8233

what happen if transformer neutral not earth

2 7450

How to calculate the Short Circuit Impedance in Transformer?

3 7883

Why DC Currents are not used in transformer?

4 8070

How to take the Vector Group Test in Transformer? What is the purpose of doing Vector Group Test?

2 4901

why the transformer is not operates on two phase?

APGenco, Atkins, FFBL,

1 3728

What is the purpose of lighting Transformer used in Industries for Lighting illumination? Its necessary or not?

2 26835

what is the diff. between power transformer & distribution transformer.....

5 13550

what will happen if we give a dc supply to a transformer.?

10 20206

What is a pulse transformer?? Can it be called as a dc transformer??

1 2888

What are the test performed on A faulty transformer ?

Bhel,

2 5865

is the secondary voltage of current transformer greater than primary voltage,,,,,,,,] give the example with ct burden,current ratio,and primary and secondary side voltage?

2 5439

describe the constructional features of an auto transformer and its principle operation

2358




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?

2083


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?

2440


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)?

4324


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

1998


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

2356


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?

1928


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?

2079


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

1955


what r the checklist while installing 500 kva transformer

2330