Limiting short-circuit currents in distribution switchboards

被引：0

作者：

Dreimann, Erich ^{[1
]}

Hartung, Karl-Heinz ^{[1
]}

机构：

[1] ABB Calor Emag Schaltanlagen AG, Germany

来源：

ABB Review | 1994年 / 10期

关键词：

Busbars - Electric commutation - Electric equipment protection - Electric fault currents - Electric fault location - Electric power distribution - Electric power systems - Installation - Limiters - Short circuit currents - Switching - Switching circuits;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The trend towards higher line kVA ratings and the growing intermeshing of power systems is increasing the likelihood that distribution switchboards will be subjected to unacceptably high short-circuit currents. Reliable and economic protection against these surge currents is provided by the Is-Limiter. This fast-acting switching device detonates a small charge to open the main conductor, which is designed to carry high operating currents. The current commutates to a parallel fuse with high breaking capacity, which limits the short-circuit current during the first rise. Is-Limiters are being used successfully in more than 1500 substations all over the world.

引用

页码：32 / 37

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