DEVICE FOR TEST CHECK OF CURRENT PROTECTIONS OF LADDER-TYPE HIGHER HARMONICS FILTER

摘要

the invention u043eu0442u043du043eu0441u0438u0442u0441u00a0 to electrical engineering, namely the technology of relay protection, and can be used in complex devices to protect ladder filters of mr. u0430u0440u043cu043eu043du0438u043a. the purpose of u0438u0437u043eu0431u0440u0435u0442u0435u043du0438u00a0 - shortening cycle u043au043eu043du0442u0440u043eu043bu00a0 and simplification.this u0434u043eu0441u0442u0438u0433u0430u0435u0442u0441u00a0 so that in the device u0434u043bu00a0 test u043au043eu043du0442u0440u043eu043bu00a0 u0442u043eu043au043eu0432u044bu0445 safeguards ladder filters higher harmonics in the "control" u0437u0430u043fu0443u0441u043au0430u0435u0442u0441u00a0 generator u043fu0440u00a0u043cu043eu0443u0433u043eu043bu044c data pulses, the signal arrives at the entrances of filters and their exits at the adder. the output signal u0441u0443u043cu043cu0430u0442u043eu0440u0430 leads to apply current responsive organs protection from overload, if she's ready. 1 il.