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Output reactors for frequency converters are used at the converter output. The reactors compensate capacitive charge-reversal currents with long cables and, in the case of accordingly long motor cables, limit the dv/dt at the motor terminals. They are used with standard asynchronous motors with a maximum frequency of 200 Hz or with reluctance or permanently excited synchronous motors with a maximum frequency of 120 Hz. Operation with a maximum converter output frequency of fmax  = 400 Hz is possible. No general statement can be made about the maximum permissible length of the motor connection cable when using output reactors. Guide values for the use of shielded and unshielded motor cable in operation with output reactors: 300 m unshielded cable/200 m shielded cable.

All the reactors presented above can be customized through adaptations to the winding and to the core air gaps.

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