Braking choppers

KIMO Tabelle

Braking choppers – overview

How does a braking chopper work?

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.

   All KIMO® Braking chopper in an overview


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Applications

Braking choppers are used for drives with a large moment of inertia or the need for fast braking. As a rule, they are used for drives in materials handling, travel and lifting applications, and test stands.

The following articles show some applications of KIMO® Braking choppers:


KIMO TRANSOMIK BC1

Braking choppers for external braking resistors
11 – 22 kW

TRANSOMIK® BC1

Features

  • Operation with frequency inverters for supply voltages up to 3AC 460 V
  • Brake voltage threshold 670 / 770 V

Applications

  • 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

   Show TRANSOMIK® BC1 product series


KIMO Bremschopper

Braking choppers for external braking resistors
22 – 1200 kW

TRANSOMIK® BC2

Features

  • 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

Applications

  • 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

   Show TRANSOMIK® BC2 product serie