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Topic :: Transformer





Transformer Interview Questions
Questions Answers Views Company eMail

Why transformer is not rotating?

BARC, Nerolac,

20 41796

what is differential relay in power transformer??

8 21189

what is stray loss in transformer?

Vijai Electricals,

19 66366

What are the saftey parameters in transformers?

2 6717

types of transformer.. 1ph 3ph or core shell?

1 5754

IS HI-POT TEST DONE ON A TRANSFORMER - YES OR NO? WHY?

4 13119

what will happen at secondary side of transformer if i increase voltage at primary side?while V1*I1=V2*I2 will secondary voltage or current increase?

2 6861

Why the size of transformer decreases if we increases the frequency?

Graphics Engineering,

5 36793

What type of isolation transformer used in UPS's?? It's Star-Delata Or Delata-Star????Why it is used????

Emerson,

6 17721

What is Isolation Transformer???

Emerson,

4 13184

how can we test the vector group of transformer

1 4541

Will transformer heating be approximately the same for resistive, inductive or capacitive loads of the same VA rating? Explain.

1 12810

why distribution transformer is uesd in Delta/Star formation?is there any significance in doing this?If yes then breif?

3 9655

On a transformer name plate %IZ(%Impedence) is mentioned. What is the meaning of %IZ and how it is calculated?

Ambe Consultancy, Siemens,

3 27642

How can you test the vector group of power transformers?

2 6521




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.

2426


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

2378