Comparative Analysis of Power Savers
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HI-SAVER's economical feasibility standard
Installed capacity (kW) |
Consumption (kW) | Monthly electric rate (won) | Saved amount (won) |
Reduced rate (%) |
||
---|---|---|---|---|---|---|
Before installation |
After installation | Before installation |
After installation | |||
22 | 7,000 | 5,775 | 839,300 | 629,475 | 209,825 | 22~25 |
37 | 12,950 | 9,712 | 1,411,550 | 1,058,622 | 352,887 | 22~25 |
75 | 26,260 | 19,687 | 2,861,250 | 2,145,937 | 715,312 | 22~25 |
160 | 56,000 | 42,000 | 6,104,000 | 4,578,000 | 1,526,000 | 22~25 |
220 | 77,000 | 57,750 | 8,393,000 | 6,294,750 | 2,098,250 | 22~25 |
Comparative Analysis of Power Savers※ A 45 kW motor is installed and operated for 12 hours (no-load condition).
※ The test result showed a power saving effect of 24%.
Unused volatile reactive power (kW) |
Power factor (%) | Effective power at the KEPCOconsumer rate (kW) | Efficiency (%) | ||||
---|---|---|---|---|---|---|---|
Before installation | After installation | Before installation | After installation | Before installation | After installation | ||
1 hour | 18.355 | 1.173 | 57.67 | 99.08 | 12.958 | 8.597 | 34% |
2 hour | 36.358 | 2.120 | 55.69 | 99.20 | 24.376 | 16.696 | 32% |
3 hour | 54.946 | 3.483 | 56.38 | 98.07 | 37.508 | 27.470 | 27% |
4 hour | 73.534 | 4.644 | 56.27 | 99.21 | 50.052 | 36.655 | 27% |
5 hour | 91.784 | 5.792 | 55.37 | 99.24 | 61.029 | 46.817 | 23% |
6 hour | 110.454 | 6.915 | 54.81 | 99.23 | 72.3741 | 55.414 | 23% |
7 hour | 129.525 | 8.135 | 53.81 | 99.22 | 82.681 | 64.626 | 22% |
8 hour | 148.741 | 8.787 | 53.41 | 99.22 | 93.973 | 69.791 | 26% |
9 hour | 167.825 | 9.463 | 52.73 | 99.22 | 104.141 | 75.263 | 28% |
10 hour | 184.765 | 10.812 | 52.57 | 99.21 | 114.195 | 85.707 | 25% |
11 hour | 186.697 | 11.898 | 55.61 | 99.21 | 124.915 | 93.829 | 25% |
12 hour | 206.296 | 12.977 | 54.87 | 99.22 | 135.390 | 103.561 | 24% |
Category | Injection | Measuring | Mold opening | Mold closing | No load | Average |
---|---|---|---|---|---|---|
Bypass (A) | 100 | 128 | 136 | 123 | 68 | 111 |
Power saving (A) | 66 | 85 | 76 | 55 | 13 | 59 |
Ratio (%) | 34 | 33 | 44 | 55 | 80 | 49 |