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Topic :: Transformer





Transformer Interview Questions
Questions Answers Views Company eMail

why transformer rating is mentioned in kva?

JK Electric Works,

1 5205

What is an Isolation Transformer? Where it will use?

3 5762

Can we use generator transformer as step down transformer? How?

3 5694

Why we are using Isolation Power Transformer inplace of commercial power transformer? What's the difference between them?

UPCL,

2236

calculation of knee point voltage of current transformer?

TATA,

2 6074

can we use ordinary transformer in place of autotransformer?give reasons also

1 4754

primary of transformer connected to Dc supply in series with switch, and secondary connected on ammeter, what happens when swith On and OFF. (or) if continuously On and OFF

9 9846

why core of transformer in square or rectangular why not in circle or ellipse if this what happens

2 8173

"TRANSFORMER MODELING AND ANALYSIS" MEANS WHAT AND WHICH TOPICS U READ IN THIS

1945

what is the current setting for different relay protection for transformer .

Crompton Greaves,

2373

Dsitrubution transformer minimum IR value

1 4414

why rating of transformer is in kva instead of kw?

3 6125

Why transformer ratings in KVA not in KW?

ABB,

6 10793

how much percentage set in transformer diffrencialrelay

1 3641

What will be the minimum megger value of 1700 KVA Transformer? a) Do megger value varies according to climate conditions and area . b) If megger value is 100 mega ohm is it good for new transfomer. Explain?

4 7838




Related Topics


Un-Answered Questions { Transformer }

Difference between PowerPlay transformer and power play reports?

2567


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

2706


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?

2131


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

2133


Draw the line diagram of diffretial relay connected to transformer?

2500


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

2442


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

4404


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

2051


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

2427


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

2215


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?

1991


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

2027


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

2127


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

2011


what r the checklist while installing 500 kva transformer

2401