Why the generator rating in kva
Answer Posted / p tiwari
Generator is a source of power. It includes active as well
as reactive power. It deliver only active power while
working on unity power factor. It deliver reactive power
only while connected to a purely reactive load. It can
deliver both of these powers while connected to a composite
load. This signifies that the current limit is the main
factor here. You can draw a purely rective current of rated
value or purly active current of rate value. combination of
output depends upon the load but the maximum limit is
prescibed.
When you are drawing both of the currencts active and
reactive, in such condition how much the alternator can
deliver? it can be descibed by KVA only not by KW. That is
why alternators are rated in KVA.
Motors are rated in KW only because for motors the load is
mechanical and thus only active power which is converted to
mech. is significant.The power factor of the motor is
independent of the load and at whatever powerfactor it
works it is due to its desing.
Is This Answer Correct ? | 74 Yes | 20 No |
Post New Answer View All Answers
How we can come to know the substation range,without go through any name plate ?
What is Traction? 1KVA Alternator, How much urrent taken?
where is core-type and shell-type construction suitable for transformers ?
what is earth resistance? how to measured? and give values at power station and mcc area?
difference between the applicability of nortons and thevenin theorem
Importance of fault current in power transformers and how to monitor the same? How is it different from winding temperature?
i need previous entrence exam papers of nhpc.
diameter of cable and core is doubled then the value of capacitance is
WHAT IS SHORT CIRCUIT STRENGTH OF 100 AMPS MCCB?
why high speed tripping relay is used in protection circuit why not normal relay
How to calculate the electrical load for a standard telecom BTS shelter and choose the DG set capacity for the same load?
How do we calculate the resistance per metre of single core aluminium stranded cable 19*3.25mm sheathed in pvc,at 15 deg C temperature?
is there any phase difference occurs while primary and secondary side mutual induction occurs?
Incoming line 11kv And transformer capacity is 2500kva. Consumption load is 1300A. Then fuse capacity is 11kv line.
If two Transformers are connected in parallel having impedance of 50KA in both transformers will the impedance increase or decrease after connecting transformers in parallel?