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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 4971

What is an Isolation Transformer? Where it will use?

3 5475

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

3 5405

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

UPCL,

2092

calculation of knee point voltage of current transformer?

TATA,

2 5805

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

1 4573

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 9235

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

2 7902

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

1838

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

Crompton Greaves,

2243

Dsitrubution transformer minimum IR value

1 4167

why rating of transformer is in kva instead of kw?

3 5805

Why transformer ratings in KVA not in KW?

ABB,

6 10278

how much percentage set in transformer diffrencialrelay

1 3465

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 7437




Related Topics


Un-Answered Questions { Transformer }

Difference between PowerPlay transformer and power play reports?

2485


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

2603


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?

2037


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

2044


Draw the line diagram of diffretial relay connected to transformer?

2386


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

2329


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

4269


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

1954


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

2287


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

2078


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?

1891


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

1943


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

2030


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

1907


what r the checklist while installing 500 kva transformer

2273