How can we calculate the rating of capacitor bank to be connected for a partic

How can we calculate the rating of capacitor bank to be
connected for a particular load(ex.100kw)to improve the
power factor from 0.8 to 0.9?

Question Posted / ram.swg

4 Answers
19118 Views
Voltas, I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

How can we calculate the rating of capacitor bank to be connected for a particular load(ex.100kw)t..

Answer / suneetha

The rating of capacitor bank is in kvar.Kvar rating can be
found out by power traingle.
active power=100kw
let the angles corresponding to power factors .8 and .9 be
A1 and A2 respectively
then reactive power required to improve the power factor
=100sin(A1)-100sin(A2)

Is This Answer Correct ?

18 Yes

9 No

How can we calculate the rating of capacitor bank to be connected for a particular load(ex.100kw)t..

Answer / mandeep singh

its.....kvar =capacitor bank 2 b installed,p=100kw,

kvar1=ptan(cosinverse 0.8),kvar2=ptan(cosinverse0.9)
kvar=kvar1-kvar2

Is This Answer Correct ?

7 Yes

2 No

How can we calculate the rating of capacitor bank to be connected for a particular load(ex.100kw)t..

Answer / ravikumar

kvar=kw(1.732) (TAN PHI1-TAN PHI2)
HERE PHI1=0.8
PHI2=0.9

THIS IS THE FORMULA REF; powersystems v.k. mehata

Is This Answer Correct ?

7 Yes

5 No

How can we calculate the rating of capacitor bank to be connected for a particular load(ex.100kw)t..

Answer / pasuvaraj

Mr Ravikumar, When your calculating the KVAr, you using the
KW in the Formula, How you consider the KW, The KW after
the KVAR Added or Before Added. This my doubt in your
formula you have explained

Is This Answer Correct ?

3 Yes

4 No

Post New Answer

More Electrical Engineering Interview Questions

To measure insulation resistance of 11KV cable between core & armour, what should be the test voltage & duration?

4 Answers

an ac induction motor gets overheated when operated at a low frequency of 25 hz a instead of 50 hz. reason?

1 Answers

Pls explan the OLR setting in VCB at HT yard

0 Answers Juniper Networks,

EXPLAIN THE TERMS "INTEREST AND DEPRECIATION" AS APPLIED TO ECONOMICS OF POWER GENERATION.

0 Answers

What is expand formation of AYFY cable

2 Answers HP,

What do you mean by passive circuit elements and why these are called passive?

0 Answers

What will be the voltage impact on secondary side of two transformers with different vector groups when both voltages are compared.

0 Answers APTransco,

what is the working principle of three point starter of dc motor?

1 Answers Ashok Leyland, Cap Gemini, Infosys, Just Dial,

which on of the transformer have more core losses and why? 1. Distribution Transformer 2. Power Transformer

5 Answers

what is ideal insulator. what are its parameter. Is poecelain insulator comes under this category.

3 Answers

Dear sir, my knowledge about cable size determination is limited. Though I read examples I could not calculate the Cable size required for electric driven pump 40 KW, 380 Volt, 50 HZ, 50 meter from transformer and it is three phase star delta starting. Please help as there is no one in my surroundings to help.

0 Answers

No load efficiency of transformer is ___________ than full load efficiency

2 Answers PGCET,

For more Electrical Engineering Interview Questions Click Here