WEM CHH SERIES HIGH VOLTAGE AC DRIVES 3 PHASE 3.3KV/6.6KV/10kV/11KV 315kW~7100kW

WEM CHH SERIES HIGH VOLTAGE AC DRIVES 315kW~7100kW

3 phase 3.3KV/6.6KV/10kV/11KV 315kW~7100kW


 High integrated techology and completely digital control system, good anti interference ability.

 Control system power supply redundant design.

 Multi monitor for power units

 Power unit bypass function to achieve power unit redundant design.

 Standard RS485terminal to communicate with DCS.

 More than 30 kinds of protection for inverter, motor.

 Full parameters record, tempeartureand DC bus of each power unit can be monitored and indicated in display.

 High efficiency≥98% and power factor≥0.96, low harmonic design<2%.

 DSP control system optimize modulated waveform to ensure perfect waveform without harmonics

 Better energy saving function. Self-regulation for voltage when detecting light load to save energy.

 Big voltage, current margin design.adopt 1700V IGBT, twice voltage margin, twice current margin

 System and power unit bypass function. Inverter can auto switch between power frequency and variable frequency. Bypass failed power unit ,the inverter run continuously derating

 Speed trace function

 Wide national grid voltage fluctuation range ±15%.

 Adopt back-in-front-out wiring for power unit.

Touch screen:

WEM CHA AC DRIVE FOUR QUADRANT TYPE 3 phase 380V/415V/440V/460V/480V/525V 132kW~1200kW

Product Description:

3 phase 380V/415V/440V/460V/480V/525V 132kW~1200kW

Less current harmonics in the Grid side. Base waveform power factor is close to 1(full load)

Excellent close loop vector control, Zero speed 200% Mn..

Three kinds control mode: sensorless vector control, vector control with PG, V/F control.

The same structure of rectifier and inverter unit, Simplify the system., easy to maintenance.

Sine wave regenerative braking unit, save the energy, protect environment;

Same structure for power unit of rectifier and converter;

Separate control for rectifier and converter;

Special function for lifting application: Logic control when power on, brake control, pre-excitation, overspeed protection, compensation of starting torque and so on;

Support PROFIBUS-DP and MODBUS;

Master-slave function can realize the power equilibrium and speed synchronization;

The second motor control and switch function can decrease the system cost;

Different external port can be used on different application.

Double protection of system and unit module, sequential control when power on, gate control and automatically save before faulty.

Typical application:

STS (SHIP-TO-SHORE CRANE), RMG, Gantry crane, loading machine, unloading machine, dumper;

Large Big tonnage crane-bridge and gate (greater tanr 40 tons );

Crane for mine, conveyer; 

Rolling mill using multi-motors, hoists and for blast furnace;

Centrifuge, pouring washer;

Segment drive for paper machine;

Centrifugal casting machine, large punching machine.

SPECIAL COMPRESSOR DRIVE MOTORS