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Medium Voltage AC Drives
Medium Voltage AC Drives
Hitachi Hi-Rel Power Electronics Pvt Ltd offers medium voltage AC Drives. The company offers the most appropriate digital technology in AC drives, tailored to customers’ specific application requirements. The Hitachi medium voltage multi-level drives HIVECTOL - HVI-E series is designed and manufactured in India by Hitachi Hi-Rel Power Electronics Pvt Ltd (HHPE) a Hitachi Group company. Local manufacturing facility ensures long term technical services and spares support.
- High efficiency of the inverter
- Multi-level control output voltage and current are very close to sinusoidal wave
- No input and output harmonic filters required
- The automatic restart function maintains continuous operation in the case of instantaneous power failure up to 2 seconds
- Existing motor can be operated since output wave form is near to sine wave
- Inrush current is very small by the pre-charging function
- Voltage fluctuation does not affect the inverter
- By the sensor less vector control, accuracy of speed control +0.5% and also constant torque control is possible
- Synchronous motor (SM) can operated without speed sensor and flux sensor (existing SM can also operated)
- Output transformer is not necessary because the IGBT inverter is multiple connected with IGBT unit in series and output medium voltage for driven motor directly
- The IGBT inverter operative the existing motor as reuse
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