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Medium Voltage Drive, Axpert-Hivert
Medium Voltage Drive, Axpert-Hivert
Amtech Electronics (India) Ltd offers the Axpert Hivert Medium Voltage Drive (MVD), which employs proven topology where multiple power cells are connected in series. Well-developed wave stacking method, highly reliable devices and the self-innovated SVPWM control strategy ensures high control accuracy, fast response and high performance.
- Protection of overload and over-current condition
- Protection of open-phase and ground fault condition; protection of over-voltage and under-voltage
- Overheat protection
- Current limit function
- Interlock protection of control power supply
- Two sets of control power hot standby redundancy
- Power cell bypass function (optional)
- Cabinet door opening alarm function
- Synchronising switch function between mains frequency and output variable frequency
- Motor soft starting, no impact to mechanical equipment and power network
- High efficiency
- At rated condition, the efficiency of VFD is 98%, the overall efficiency including the transformer is 96%
- Communication of power units using optical fibre ensures sufficient electric isolation
- Embedded PID regulator with close-loop control
- Multiple communication methods with host computer, isolated RS 485 interface, standard Modbus RTU communication protocol, optional Profibus DP, industrial Ethernet communication protocol
- Three kinds of control modes including local control, remote control and host control
- Multiple speed adjustment modes including local, host, simulation and switching signal
- Accurately records faults history more than 10 times
- Compact construction, small dimensions
- Special design according to customer's requirement
