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INVT GD5000 MV Drive for 6x25MW Coal Power Plant Boiler Fan and Feed Pump
Project Overview
Sinopec thermal power center is equipped with six 25MW coal-fired generating units, the boiler feed pump and induced draft fan respectively adopt 6kV / 2240kW and 6kV / 250kW asynchronous motor drive. During production process, fan and pump are operated in industrial frequency, the flow is adjusted through the fan inlet duct and pump outlet valve, resulting in great energy waste.
Schematic plan
Benefit analysis
●obvious energy saving
| Feed pump operation data | Induced fan operating data | |||
| Parameter | industrial frequency | variable frequency | industrial frequency | variable frequency |
| Input Voltage | 6.1kV | 6.1kV | 5.8kV | 5.8kV |
| Actual running current | 220A | 140A | 31A | 23A |
| Power factor | 0.84 | 0.95 | 0.83 | 0.95 |
| Electricity saving ratio | 28% | 15% | ||
| annual electricity saving fee | 1.681 million/set | 0.1123 million/set | ||
●Achieve soft starting of motor, without impact current;
●Extend equipment maintenance cycle, reduce maintenance workload;
●Power factor has been significantly improved.
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