Low Voltage VFD GDL Series Filter Option

If it is necessary to enhance the protection of the power grid, reduce the harmonic interference of the VFD on the power grid, and improve the input power factor, an external DC reactor, or an input reactor, or a passive harmonic filter can be selected and configured according to the actual application.

When the cable between the VFD and the motor is long, an external output reactor, or a dv/dt filter, or a sine wave filter needs to be selected and configured according to the length of the motor cable, so as to reduce the excessive dv/dt, thereby reducing the voltage stress on the motor windings, protecting the motor windings, and extending the service life of the motor.

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1. Full range of models: GDL series filter options use new models for easy selection. The addition of dv/dt filters and passive harmonic filter completes the range of filter options and provides a one-stop solution for low voltage VFDs.

2. Better matching: GDL series filter options match INVT low voltage VFDs better, making system more reliable and reducing customer system life-cycle costs.

3. Excellent design: The product temperature rise keeps stable thanks to precise thermal loss design, which uses the calculation of iron core loss caused by dv/dt due to output cable distribution capacitance, of magnetic flux density oscillation caused by input ripple current, and of skin effect thermal loss caused by high frequency ripple current.

4. Extra long warranty: A 24-months warranty on GDL series filter options ensures stable and reliable product quality.

Recommendation of motor cable lengths corresponding to different output reactors:

Non-shielded cable length	50m-150m	150m-450m	450m-1000m
Shielded cable length	30m-100m	100m-230m	230m-500m
Output reactor category	Output reactor (1%)	/	/
	/	dv/dt decrement filter	/
	/	/	Sine filter

Low Voltage VFD GDL Series Filter Option Brochure

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