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Single-phase commutating reactors for DC operating mechanisms

Single-phase 4EM commutating reactors for converters are used in double-way circuits from converter assemblies as line reactors into the line-side infeed. They are connected such that alternating current flows through them.

It is their task to limit the line-side voltage dips during commutation of the converter. Also, by limiting the current rise rate di/dt the reactors limit the voltage rise rate du/dt at the thyristors used.

There are various series of reactors in the version Standard (Catalog LV 60):

• u_D ~ 2 % for following supply voltage:
  230 V AC
• u_D ~ 4 % for following supply voltage:230 
  V AC, 400 V

The figures are based on a frequency f = 50 Hz.

If these do not meet your requirements, versions in Standard modified or customized solutions are available. For more information contact "mdexx GmbH" in Bremen:
e-mail: Anfrage@mdexx.com