Answer / rakesh

The iron loss in transformer is depend upon voltage and
copper is depend on current. The transformer is not depend
on power faotor. Thus transformer is rated in va and for
big transformer it is KVA & MVA

Answer / rajan kumar

coz for different loads pf will be different..hence kw rating will be different..tat's y transformer rating in kva oly not in kw...

Answer / ramki

TRANSFORMER DEPENDS UP ON THE VOLTAGE AND CURRENY

Answer / nagaraja bagi m

Transformer is independent of power factor,it depends on
Voltage and current.

Answer / adhikari

Because the load connected on it's side will determine the Kw of it.
Similarly,Generators are rated in VA and motors in KW because motor is itself a load.

sir What is the different bet'n "Active & passive" sensors

3 Answers   Kirloskar,

can anybody sent me power grid questions. what subject should i prefer for preparation?

0 Answers   Reliance, Vascon,

how to calculate size of cable from motor current given and how to calculate full load current of a induction motor.

3 Answers   Aarti Steels,

What is K-rated transformer? What is the use of it? What can be the size(pls provide calculation if possible) of K- factor transformer for 550kW,690V motor operating with drive (VFD)?

0 Answers  

Name some application zrea where IDMT relay can used?

3 Answers   SKB,

1 Kva = How many HP

9 Answers  

Is motorized MCCB required rotatory handle

1 Answers  

what is the use of neutral displacement relay

1 Answers   OCL,

carbon zinc cell voltage?

3 Answers  

if we supply DC power to AC transformer then what its result?

15 Answers  

Do any one know exacatly when the results for NHPC held on 8th march 09 for engineering trainees will be released ?. if so please post it, i'm eager to know it.

0 Answers   NHPC,

What is surger vector in 33Kv transmission feeder? We have AC power generator of 8MW which is paralleled with 33Kv EB grid. Some times our HT breaker gets trip off due to surge vector problem. How to over come it? Is there any device to observe the surge and avoid tripping?

3 Answers