diffrence chopper and dbr



diffrence chopper and dbr..

Answer / madhu

Chopper is a device used to convert the fixed DC Voltage to
Variable DC voltage. DBR (Dynami brake resistor) used with
VFD to eliminate regenerative braking. Chopper is used with
DBR to sense the DC bus voltage of VFD. If the DC bus
voltage increases during Regenerative braking DBR will
operate.

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