why transformer is rated in KVA ?

Answer Posted / prabahakaran

WE know the relation of power in three phase =
√3VIcosØ.hence we can say that the load is not constant it
very accordingly. So power factor is also get vary with
load it is hard to define the power of transformer so it is
rated in KVA.

Is This Answer Correct ?    2 Yes 2 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

An 8 pole, 50 Hz, 3-phase IM is loaded to a poing where pull out torque will occur. The rotor resistance per phase is 0.3 ohm and motor stalls at 650 rpm. The rotor reactance at stand still is A 2 ohm B 1.25 ohm C 3.15 ohm D 2.25 ohm

1755


What the formula for calculating no.of earthings & size of earth strip for 100mX90m shop.

1880


What is big transformer parts and their function ? Ty

1680


The transmission does not have options: a)Partition noise b) Flicker noise c) resistance d) Short noise and reason

1941


How to select cable the size, what is the parameters use and what is the formulas use for this cable size calculation?

1406






what is level 2 automation?

2714


i have install 750 kva distribution transformer at my site and want to do neutral earthing. what calculations should i follow to determine earthing conductor material and size?

1578


what is difference between earthingpits,earthing grid & earthing mess?

2058


what is counter poise conductors

1676


describe the Operation of induction generators from bus bars

1810


Can we put 3 layers of cable tray while installing tray

1942


Difference between low impedance and high impedance Restricted Earth Fault

2630


How to calculate cable size by using load.?? Any formula...

904


Pls tell me whether we can use EN3A material for shafts of Permanent magnet alternator.What will be the effect of magnetic and nonmagnetic material for shafts on magnetic properties of PM rotor .

2995


EXPLAIN METOD OF IMAGE OF TRANSMISSION LINE/ WHAT ARE ITS PRACTICAL APPLICATION?

1423