Wide appliance fields

   The water supply technology is based on the constant pressure of PLC and frequency converter (or constant pressure alternating current value. Compared with traditional technology, it features prominent energy-saving efficiency, perfect control and protective function, wide input voltage range, small electromagnetic lash, and flexible pump group operation switching, etc. It can complete the soft start and soft stop of the pump group. This system has been widely applied in feed water pump station, second pressurized station, industrial boiler water supply, district and high building water supply etc.

Mature technology and device

   Frequency conversion technology widely used in alternating current speed-governing field has become the new product that combines modern electric power electronic technology with microcomputer technology. Its main circuit adopts IGBT power components with high performance, while control circuit adopts special-purpose microcomputer and relative control software. It has become mature and reliable technology and device. With internal PID loop, RS-485 communication interface and other additional functions, it can be used more conveniently and flexibly.

Main technical characteristics of frequency converter


 380C:0.1-800kW/3kV, 6kV, 10k: 200-10000kW

 Advanced direct torque control(DTC) / perfect motor protection function

 Inner PID controller/200%maximum start torque

 All-round support to torque provided by the software tool/RS-485 communication interface