(out) Braking choppers

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KIMO Braking chopper TRANSOMIK B1/B3
KIMO Tabelle

Braking choppers overview

A braking chopper or chopper is connected to a DC link. When a set brake voltage threshold is reached it switches an internal or external resistor (depending on the series) in a clocked mode. Thus the chopper effectively limits the voltage in e.g. a DC link. Typically, a braking chopper is used with a frequency inverter for demanding braking tasks (up to continuous braking) or to protect regenerative frequency inverters in the event of a mains failure.

KIMO TRANSOMIK BC1

TRANSOMIK® BC1

Braking choppers for external braking resistors
11 – 22 kW

Features Applications
  • Operation with frequency inverters for supply voltages up to 3AC 460 V
  • Brake voltage threshold 670 / 770 V
  • Drives with large inertia
  • Drives with requirement for rapid braking
  • Drives for transport, long travel and hoisting applications
  • Retrofit to existing inverters without braking chopper
KIMO Bremschopper

TRANSOMIK® BC2

Braking choppers for external braking resistors
22 – 1200 kW

Merkmale Anwendungen
  • Operation with frequency inverters for supply voltages up to 3AC 460 V,
    575 V, 690 V
  • Brake voltage threshold 670/770 V,
    840/960 V, 1065/1155 V
  • Increased power with optional fan
  • Can be paralleled for higher powers
  • Drives with large inertia
  • Drives with requirement for rapid braking
  • Drives for transport, long travel and hoisting applications
  • Retrofit to existing inverters without braking chopper
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