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西门子中国代理商-电源代理商

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西门子中国代理商-电源代理商

• 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

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附件

The covers are suitable for all reactors and filters with 1-hole flat connectors. Assignment of the covers to the reactors and filters can take via the connection hole diameter.

If no other information is provided in the technical specifications, touch protection for the backs of hands against unintentional contact with live components can be created according to BGV A2 by using the covers.

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The following applies to the versions (see ordering data):

Standard (Catalog LV 60):

Standard modified:

• The values in the ordering data apply.

• Boundary conditions, standards and approvals may differ from those of the LV60 catalog products.

• More data available from Technical Support, PRODIS or by
  e-mail: Anfrage@mdexx.com

More information_SIDAC 4EM, 4EP, 4EU

应用

Three-phase commutating reactors for DC operating mechanisms西门子中国代理商-电源代理商

Commutating reactors for converters are used in B6 and B6C circuits from converter assemblies into the line-side infeed. 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.

Commutating reactors can also be used for decoupling converter assemblies working in parallel.

• I th max= 0.8·IL max ("80 % reactors") with uD ~ 4 % for following supply voltages: 3 AC 400 V, 3 AC 500 V, 3 AC 690 V, 3 AC 750 V

• I th max = IL max ("100 % reactors") with uD ~ 2 % for following supply voltages:
  3 AC 400 V, 3 AC 690 V, 3 AC 830 V
  and with uD ~ 4 % for following supply voltages:
  3 AC 400 V, 3 AC 500 V, 3 AC 690 V, 3 AC 750 V

The figures are based on a frequency f = 50 Hz.西门子中国代理商-电源代理商

西门子中国代理商-电源代理商

西门子中国代理商-电源代理商