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Topic :: Transformer





Transformer Interview Questions
Questions Answers Views Company eMail

Why transformer is not rotating?

BARC, Nerolac,

20 41236

what is differential relay in power transformer??

8 20948

what is stray loss in transformer?

Vijai Electricals,

19 65836

What are the saftey parameters in transformers?

2 6627

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

1 5679

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

4 12965

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 6766

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

Graphics Engineering,

5 36620

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

Emerson,

6 17541

What is Isolation Transformer???

Emerson,

4 13033

how can we test the vector group of transformer

1 4485

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

1 12722

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

3 9572

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

Ambe Consultancy, Siemens,

3 27469

How can you test the vector group of power transformers?

2 6432




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

2355


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