Medium Voltage Drives
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Technical characteristics
- BrandMedium
Description
In the ROBICON Perfect Harmony, a series of low-voltage cells are linked together to build the medium-voltage power output of the drive system. With this topology, the drive can be scaled precisely for a very wide range of voltage and output power. Additionally, the ROBICON Perfect Harmony offers increased availability because of its modular design and ability to bypass any one cell during operation while maintaining the full output voltage.
Furthermore, the integral transformer with phase-shifted secondaries provides 18-pulse or better input harmonic cancellation with a power factor above 0.95 under any operating conditions. This eliminates the need for input harmonic filters or power factor compensation, while completely avoiding any common-mode voltages from being imposed on the motor.
The quality of the output voltage is so close to perfect sine-wave shape that motors of literally any type - old or new, low-speed or high-speed - can be operated without any additional stress. Issues related to dU/dt, overheating and increased torsion vibrations are a thing of the past.
Furthermore, the integral transformer with phase-shifted secondaries provides 18-pulse or better input harmonic cancellation with a power factor above 0.95 under any operating conditions. This eliminates the need for input harmonic filters or power factor compensation, while completely avoiding any common-mode voltages from being imposed on the motor.
The quality of the output voltage is so close to perfect sine-wave shape that motors of literally any type - old or new, low-speed or high-speed - can be operated without any additional stress. Issues related to dU/dt, overheating and increased torsion vibrations are a thing of the past.
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Medium Voltage Drives