We have 2 Nos. Transformer with the capacity of 2000KVA and 1250 KVA and curre

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.

Question Posted / rohit

2 Answers
7167 Views
I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

We have 2 Nos. Transformer with the capacity of 2000KVA and 1250 KVA and currently using only one ..

Answer / arvind

You please check out the location of the capacitor banks
means whether it is away from the load or not if it is away
from tha load then power losses will be there and affects
the power factor.
secondly, if the load (1000kw) is variable means motor,
then it is difficult to get power factor 0.99.

Is This Answer Correct ?

4 Yes

0 No

We have 2 Nos. Transformer with the capacity of 2000KVA and 1250 KVA and currently using only one ..

Answer / 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

More Electrical Engineering Interview Questions

testing of transformer

1 Answers Vijai Electricals,

Dry type transformers

0 Answers

1)what is the function of a frequency inverter? 2)If a few frequency inverter are connected onto a device network,what are the two setting that will ensure the frequency inverter work properly on the network. 3)whats is the name of the input sensor for weigher? 4)How to confirm that the load cellis faulty? 5)Describe briefly the steps to validate that the weigher is working properly? 6)Describe the procedure to validate the flowmeter accuracy? 7)Describe briefly the steps to validate that the tempreture sensor/transformer is working properly. 8)what is the adjustment that need to be done when you are calibrating the temperature transmitter ? 9)what are the safety measures to be taken before disconnecting motor for rewinding. 10)whats is the synchronous speed in rpm of typical 4pole 50hz motor? 11)whats is the formula for kw, ohm's law 12)if a 3phase motor is rated 3kw,415vac,what is it's rated ampere?

0 Answers

How is the Depth of Stator Slot being calculated for Synchronous Generator?

2 Answers

What is the size of electrical cable to be used for a space heater single phase 240V ?

3 Answers

what is bus pt and what is the function of it ???

8 Answers TATA,

Does the Impedance of the source affects the THD

1 Answers

why in a transformer frequency remains constant? if frequency is changing what will happen?

5 Answers

What is the formula to find maximum load of a DG (Single phase and Three phase)?

1 Answers

can we use CBCT in neutral of solidly grounded transformer? in place of three phases we can pass only one phase which decreases the size of CBCT?

0 Answers UPSC,

what is the relationship between phase & neutral

0 Answers

why motor burns ?

5 Answers

For more Electrical Engineering Interview Questions Click Here