Answer / fahad

bcoz the power factor of load is not known during the
manufacturing, this is also done during load calculation.
For reference you can see a indian book " B.L Theraja -
Electrical Technology" ....

Answer / amit

bcoz iron losses depdens on voltage and copper losses
depends on current that's why transformer rated in KVA

Answer / thanigai1984

Transformer is not consider the power factor so its
capacity is in KVA

Answer / mathivanan k

the pf will be indipendent to the trf,the pf only act at
load equipment side only
so the trf is not load
and it's losses depending copper&coreloss then only it is
mention in VA it is bulk amount so KVA

Answer / mintu kr. pandit

Mainly reason for no-load current consumption of transformer in losses hysteresis loss and eddy current loss.

Answer / realas

Because the flowing of current in secondary winding is
without/no losses so the apparent power is zero. Hence, the
transformer may call either by KVA or KW since it is equal.

Answer / sachin verma

BECAUSE VOLATGE IS measured in volts and current in ampere.

Answer / ravindranath

transformer of is close to one that is why it is not expressed in kw

What is Ton Capacity of Air Conditioner?

1 Answers   TATA,

Why nutral wir used thinner than phase wire

3 Answers  

why the NGR (neutral grounding resistor) always OFF during DG off?

0 Answers   Bhel,

What is load curve?

2 Answers  

what happenes if two voltage source connected in parallel will be connected to load.

3 Answers   Efftronics Systems,

How can you measure battery AH?

1 Answers  

why permanent magnet generator have higher frequency of 400hz

3 Answers   Jaypee,

Why should we use Star-Delta connection in step down power transformers?

7 Answers   L&T,

There are two nos of 33Kv/11Kv 5MVA transformers conecting through HT cable from substation having metering at substation itself.One transformer used at a time another remains stand by.Further 11 nos of 11Kv/440V transformers are attached on it and each transformer is having its own Power factor correction panel.Now one 33/11Kv transformer at no load condition/Stand by condition is having power factor in leading side upto 0.21 and while when another tranformer at same situation have power factor in lagging 0.42. Now one thing is clear that transformer one is having 1.5 Km long 33kv cable due to that PF goes in leading side and another is having only 250 mtr length remains him lagging. Now i want to know that how i can maintain the Power factor at no load/ stand by position though both are behaving in seperate manner.

1 Answers  

What are the voltage values for LT,HT,EHT and other voltages??

22 Answers   INEL, MNC,

what are the disadvantages of low power factor

0 Answers   HMK,

what is the criteria for selecting fuse rating in 1phase, 2phase & 3phase welding sets?

0 Answers