AC drive (VFD Drive, VSD Drive) Can Save Over 30% In Energy Costs (part 5)
Continued from the article: AC drive (VFD Drive, VSD Drive) Can Save Over 30% In Energy Costs (part 4).
The energy savings for operating point A1 over P1 is 17.8 KW (Refer to figure 2 below). If the cost of electricity is $0.06 per KWH, and the system operates for 1,000 hours at 4,000 GPM, the savings utilizing an VFD (AC drive, VSD drive, frequency inverter), is $1,068. If the flow is 3,000 GPM for 1,000 hours, the savings is $2,376. As you can see, the savings on energy bill can be significant over the life of the installation.
Figure 2
Additional benefits which are readily seen include: the reduction and/or elimination of motor starters, less stress on the AC motor windings and bearings, and a decrease in stress and wear on the pump or fan itself. This all equates to a smoother, longer lasting and more efficient operation process.
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Professional manufacturer of AC variable frequency drives (VFDs, frequency inverters, VSD drives, ac drives), motor soft starters...: Powtran Technology Co.,Ltd. (Shenzhen POWTRAN Technology Co., Ltd., DaLian Powtran Technology Co.,Ltd. ) 
