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Topic :: Transformer





Transformer Interview Questions
Questions Answers Views Company eMail

why dose not transformer not rotate ?

3 5751

Generally In transformer Tap Changer on HT side, but I have seen in 66KV side in 220/66 KV, 100 MVA, Areva make transformer. Why ?

7 11430

In transformer how measure the winding temperature ?

5 23888

what happen when transformer connect on dc supply.

5 9717

Why Two Transformers aside shoud be supperated by concreted wall?

5 15882

what is the difference between potential Transformers and capacitive voltage transfoemers and where it is used?

5 13459

How many methods to take IR value of Current Transformer?

1 5921

why autotransformers are not safe for supplying low voltage from a high voltage source?

5 14208

what current is taken from a double wound 500kva transformer

4 7047

Why a transformer is rated in kVA and not in kW??

9 15312

What is the technical name of Transformer Oil ?

Bhel, Don Bosco, Lanco,

17 39126

For a DY11 lighting Transformer on primary side whee to connect fourth lead? from nuetral or from ground?

Sabic,

3 6267

when u step up the voltage using atransformer ,,,then what about the secondary current will it be increased or decreased ?

1 3330

why we do occ & scc test in transformer ?how we can do it ?

2 12335

What will happen if primary of transformer is fed with Square wave instead of sinsoidal wave ?Will it operate or Not?

Areva,

3 17270




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?

2082


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?

2439


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)?

4323


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

1997


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

2354


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?

1927


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?

2078


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

1954


what r the checklist while installing 500 kva transformer

2330