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Protection against fault situations in a telecommunications network
Protection against fault situations in a telecommunications network
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机译:防范电信网络中的故障情况
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摘要
This invention relates to the protection against over-voltage situations in a telecommunications network. Especially, the invention relates to fault situations that are generated by a power distribution network. The idea of the invention is to protect the telecommunication equipment against any overvoltage caused by an external source. The invention uses a detector core around cables through which a common mode fault current goes. The subscriber line cables or the power & ground cables form a primary coil in a transformer. The transformer's secondary coil forms an output current, preferably for converting equipment that converts the fault current information into a suitable form for operational devices that perform a desired protection action.
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