dv/dt filters compact plus VPL (Voltage Peak Limiter) limit the voltage rate-of-rise dv/dt to values of < 1600 V/Ојs and the typical voltage peaks to the following values in accordance with the limit value curve A according to IEC 60034‑25: 2007:

< 1150 V at U_line < 575 V

< 1400 V at 660 V < U_line < 690 V

Standard motors with standard insulation and without insulated bearings with a supply voltage of up to 690 V can be used for converter operation if a dv/dt filter compact plus VPL is used.

dv/dt filters compact plus VPL are designed for the following maximum motor cable lengths:

• Shielded cables: 100 m (e.g. Protodur NYCWY)
• Unshielded cables: 150 m (e.g. Protodur NYY)

For longer cable lengths (> 100 m shielded, > 150 m unshielded) refer to dv/dt filter plus VPL.

Notice:

• The max. permissible cable length between the dv/dt filter and Motor Module is 5 m
• Operation with output frequencies < 10 Hz is permissible for max. 5 min.