PWM Converter

PWM converter Series

Features Applied Guideline for Suppressing Harmonics PWM control reduces harmonics current significantly, due to sinusoidal wave at power supply side. According to “Guideline for Suppressing Harmonics by the Users Who Receive High Voltage or Special High Voltage” issued by the Ministry of Economy, Trade and Industry, the converter factor (Ki) can be set to “0” (meaning harmonics occurrence is 0) when combining with the inverter.

Possible to reduce power supply facility capacity Its power-factor control realizes the same phase current as the power-supply phase-voltage. The equipment, thus, can be operated with the power-factor of almost “1.” This makes it possible to reduce the power transformer capacity and downsize the other devices, compared with those required without the converter

Upgraded braking performance

Regenerated energy occurring at highly frequent accelerating and decelerating operation and elevating machine operation is entirely returned to power supply side. Thus, energy saving during regenerative operation is possible. As the current waveform is sinusoidal during regenerative operation, no troubles are caused to the power supply system.

Rated continuous regeneration    100%

Rated regeneration for 1 min        150% MD (CT) spec.

120% LD (VT) spec. *Stack type: 110%

PWM converter Type   400V series PWM converter

RHC45-4EJ

RHC55-4EJ

RHC75-4EJ

RHC90-4EJ

RHC110-4EJ

RHC132-4EJ

RHC160-4EJ

RHC200-4EJ

RHC220-4EJ

RHC315-4EJ

RHC355-4EJ

RHC400-4EJ

RHC500-4EJ

RHC630-4EJ