We have 2 Nos. Transformer with the capacity of 2000KVA and
1250 KVA and currently using only one 2000KVA T/R during
operational hours while non- operational hous 1250 KVA T/R
also used to reduce T & D losses. Similarly, 2 capacitor
bank of 500KVAR and 300 KVAR also installed to balance
reactive power. Now problem is around 1000 KW load PF is
not maintaning 0.99 as 350 KVAR capacitor is in healty
condtion. Now the PF is maintain 0.95 to 0.96.
Answer Posted / muhammad azeem butt
we know that transformer is a inductive device it also
effect on our pwer factor lagging.
Power and distribution transformers, which work on the
principle of electron-magnetic
induction, consume reactive power for their own needs even
when its secondary is not
connected to any load. The power factor will be very low
under such a situation.
To improve the power factor it is required to connect a
fixed capacitor or a capacitor
Sl.no kVA rating of the transformer kVAr required for
compensation
1 upto and including 315 kVA 5% of kVA rating
2 315 kVA - 1000 kVA 6% of kVA rating
3 Above 1000 kVA 8% of kVA rating
| Is This Answer Correct ? | 1 Yes | 0 No |
Post New Answer View All Answers
why don't we use the generator as a motor? and what will happen?
What is current divider rule (cdr)?
What is a dc motor?
Draw the single line diagram of the power station?
What are hrc fuses and where it is used?
I WANT TO know WHICH WAY IS BETTER FOR CONNECTION BETWEEN POWER TRANSFORMER AND MAIN DISTRIBUTION PANEL. 1-IS BETTER WE USE CABLE? 2-IS BETTER WE USE BUS DUCT? my transformer rate power is 2500KVA
what is the relationship between current&voltage in practical purpose ?
3phase motor can be used as a Prime mover for alternator.
on a three-winding transformer relationship delta-delta-star, on third winding why the relationship is a star? what are the advantages and disadvantages? Thank you and please help
What is diversity factor in electric installations?
distribution is maximum done by a)radial b)network c) parallel d)b & c
10 Mtr Hight of Lighting Arrestar how much area coverd??
Define characteristics impedance?
I need the recommended size for a 3 phase transformer at 13.8 KV Primary and connected loads of 3000 kVA at 4200 volts and 2375 kVA @ 480 volts AC.
what is the difference between 2 way and 4 pole selector switch???