Answer / prasad asolkar

The output of transformer is not dependent on load and so the p.F and it only depends upon the voltage and current. Voltage is mostly given in kv and current in a. So the unit is kva.

Answer / kalyandin

Transformer is depending upon the Voltage and Current so we are using KVA. transformer is not depending upon the power so not mention by KWh rating

Answer / neeta1602

actually load is not decieded in secodary of transformer( means capacitiv,resisteiv or inductiv )so power factor is diffrent in diffrent load .

Answer / souvik kundu

As the time of the manufacture of the x-mer the load is unknown to us and during the operation of x-mer the load is highly varing.so,the load p.f can not be predicted at the time of design as well as during the time manufacture.so, the power of the x-mer is rated in kva instead of kw.

Answer / azhakesh

Transformer rating depend upon the voltage and current not include with power factor so rating depend on kilo voltage current

working

1 Answers  

generally in LT and MV motors we are using 3.5Coresx16,25,35,50 etc cable for supply.although motors is earthed at two point and having all protection.then why we are using that 1/2 core for earthing the motors.while in HT cable we are using only 3core cable for motor supply.generally lt and mv motors are delta connected and ht motors having star connection.whethere it is having any relation with winding connection( star or delta).all motors i am talking about are dol only.can anybody solve my confusion.thanks...

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