- Installation of Static Capacitors
- Installation of Static UAR Compensator
Variation In Maximum Demand With Change In Power Factor (pf)
| MD at Unity pf = |
100 |
= 100 kVA |
|
| 1 |
| MD at 0.95 pf = |
100 |
= 105.26 kVA |
i.e. 5.25% Increase |
| 0.95 |
| MD at 0.90 pf = |
100 |
= 111.11 kVA |
i.e. 11.11% Increase |
| 0.90 |
Advantage of improvement in power factor is the reduction in monthly Maximum Demand charges
Advantage of improvement in power factor is the reduction in monthly Maximum Demand charges. The following table lists the advantages by improving power factor from 0.80 to 0.92 for load of 200 kW.
SAVINGS BY IMPROVING POWER FACTOR TO .92 FOR ACTIVE LOAD OF 200 KVA |
pf |
KVA |
Actual kVAR |
KVAR Required at 0.92pf |
Add'l KVAR |
KVAR Added |
pf with add'l KVAR |
KVA with Add'l KVAR |
Reduction in MD |
Savings in MD charges (Rs) |
pf Surcharge (Rs) |
Total Savings (Rs) |
| 0.92 |
217 |
85 |
85 |
0 |
0 |
0.92 |
217 |
0 |
0 |
0 |
0 |
| 0.91 |
220 |
91 |
85 |
6 |
10 |
0.93 |
215 |
2 |
748 |
875 |
1,623 |
| 0.90 |
222 |
97 |
85 |
12 |
15 |
0.93 |
215 |
7 |
2618 |
1750 |
4,368 |
| 0.89 |
225 |
102 |
85 |
27 |
20 |
0.93 |
215 |
10 |
3740 |
2625 |
6,365 |
| 0.88 |
227 |
108 |
85 |
23 |
25 |
0.93 |
215 |
12 |
4488 |
3500 |
7,988 |
| 0.87 |
230 |
113 |
85 |
28 |
30 |
0.93 |
215 |
13 |
4862 |
4375 |
9,237 |
| 0.86 |
233 |
119 |
85 |
34 |
35 |
0.92 |
217 |
16 |
5984 |
5250 |
11,234 |
| 0.85 |
235 |
124 |
85 |
39 |
40 |
0.92 |
217 |
18 |
6732 |
6125 |
12,857 |
| 0.84 |
238 |
129 |
85 |
44 |
45 |
0.92 |
217 |
21 |
7854 |
7000 |
14,854 |
| 0.83 |
241 |
134 |
85 |
49 |
50 |
0.92 |
217 |
24 |
8976 |
7875 |
16,851 |
| 0.82 |
244 |
140 |
85 |
55 |
55 |
0.92 |
217 |
27 |
10098 |
8750 |
18,848 |
| 0.81 |
247 |
145 |
85 |
60 |
60 |
0.92 |
217 |
30 |
11220 |
9625 |
20,845 |
| 0.80 |
250 |
150 |
85 |
65 |
65 |
0.92 |
217 |
33 |
12342 |
10500 |
22,842 |
|
