Bebort Electric always devotes efficiency in power energy use through Variable frequency drive made by us, leading to a more pollution-free and green environment. From 0.75kw up to 1000kw power range, 220V to 11kV voltage range. Moreover, the Four quadrant VFD has energy recovery, for example, the mine can make it recover the rest energy back to the grid, combine it with the Rectifier unit, and make sure the regenerative electricity is clear. Our company has now corporate with China National Petroleum, Sinopec, Sinograin, etc.