DU/dt filters
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DU/dt Filters

DU/dt Filters - Protects the motor-reducing dU/dt value of the drive output voltage - Reduction of motor temperature - Increases the lifetime of the motor - Open frame design - UL listed materials used - Cable length up to 300m Motor winding insulation experiences higher voltage stress s e when used with a variable speed drive than when con ected n directly to the mains supply. The higher stresses de end on p the motor cable length. The stresses are caused by the fastrising voltage pulses of the drive and transmission line effects in the cable. DU/dt filters reduce the insulation stress of...

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The waveform of the motor voltage without dU/dt- filter The waveform of the motor current with dU/dt- filter The typical voltage pulse shape in the terminals of the motor with dU/dt- filter The typical voltage pulse of the inverter output and the voltage pulse of the motor input with dU/dt- filter. Technical specifications Standards Design Operating voltage range Motor frequency Max switching frequency Typical overshoot Rated current Open frame design 3x200-690 Vac ±10% 0-70 Hz without derating 70-320 Hz with derating 4 kHz 50 % of DC link voltage Voltage loss Ambient temperature Storage...

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filters / du/dt filters / 12-3000a, type dudt Busbar 7x11 Busbar Ø11 Busbar Ø14 Busbar Ø14 Busbar 14x24 Busbar Ø14 Busbar 2xØ14 Busbar 2xØ14 Busbar 4xØ14 Busbar 4xØ14 Busbar 4xØ14 Trafox is a brand of Muuntosähkö Oy. We develop, manufacture and customise high-quality transformers, chokes, filters and Trafox Superintend® monitoring devices for a large number of applications. – Muuntosähkö Oy Trafox P.O. Box 10 | FI-00621 Helsinki | Tel. +358 207 933 700 | Fax +358 207 933 746 | sales@trafox.fi

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