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Topic :: Transformer





Transformer Interview Questions
Questions Answers Views Company eMail

when we have to purchase the transformer by own i.e how much load will preferred HT connection?

Power Square,

1723

please I wont know how to calculate the vector group for power transformer ZNyn11 best regard.

Al Rasikh,

1930

What are the difference between normal application Transformer and Solar application Transformer?

1705

why are transformer rating in MVA

Suzlon,

2 3960

why we use delta connection in transformer

UPPCL,

2 4481

Dyn1 transformer vector group testing how to do

1861

the parts of transformers ?

Bhel, Facility management,

1 3785

750kva 11/415kv transformer having percentage impedence is5.64%. 11KV HV whose current 39.37A and 415V LV whose current 1043.43A.resistance is 2.5ohm. find no load loss and full load loss?

2 3240

How LVDT position transmitter works on DC supply(24vdc) from DCS, whereas transformer operates on AC supply? pls help..

1 2906

What are formula we can apply to determine the HT/LT current of 11KV/433V transformer except KVA/LV×√3. ?

2 37845

Why do we require transformer with less specific weight if supply frequency is increased?

1645

why we use transformers?

1755

what is working parincipal of a ht transformer

Pidilite,

2003

they transformer oil leakeage to beather tank and top parts . they protection relayes was not operated.what is the oil leakeage problem.

1 2524

What is the breaking capacity of transformer and how can we calculate the breaking capacity of tranformer

Siemens,

2063




Related Topics


Un-Answered Questions { Transformer }

Difference between PowerPlay transformer and power play reports?

2565


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

2703


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?

2127


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.

2438


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

4399


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

2049


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

2425


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

2213


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?

2010


what r the checklist while installing 500 kva transformer

2401