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Topic :: Transformer





Transformer Interview Questions
Questions Answers Views Company eMail

why earthing is not required on transformer prymary winding side ???

Genpact,

13 27027

what isthe emf eqation of a transformer

7 12920

There are a Transformer and an induction machine. Those two have the same supply. For which device the load current will be maximum? And why?

4 11089

for 1000kva transformer how kvar rating is need for this PFI plant. and how does it will calculate? and Apmpere rating of main cable connection?

Engineers India, GCC, KP, QPSL, Siemens,

6 18390

EXPLAIN THE TRANSFORMER MAINTENANCE?

Enercon, ERT, GEL,

2209

errection check list for transformer maintenance

RRB,

2561

our company have 750 kva oil transformer.still we have facing a problem that is when voltage is 11.5 kv coming from HT side then LT-side voltage is 420v or above at tape 1.please give me best solution to decrease the voltage.

3 5141

can we use metering current transformer as protection current transformer if not why? & if yes why?

Wartsila,

5 16589

In power transformer YnD0 Vector Group is possible or not? if possible, what will be the vector diagram and what are the conditions?

2 9373

How we check vector group for a Dyn1 transformer?

6 27472

Wheather there exist any dc transformer

6 10341

how can calculated the rating of the 11 KV transformer?

NBCC,

6 12316

Why Current Transformers cannot be connected in parallel

10 46181

how kva rating of transformer is calculated.

Fluor Daniel, Siemens,

6 23619

What is the meaning of Insulation H for transformers????

2095




Related Topics


Un-Answered Questions { Transformer }

Difference between PowerPlay transformer and power play reports?

2483


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

2598


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?

2035


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

2039


Draw the line diagram of diffretial relay connected to transformer?

2385


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

2327


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

4266


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

1949


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

2282


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

2075


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?

1888


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

1938


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

2022


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

2269