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发明公开
CN110797842A 一种干式空心并联电抗器的过压保护方法 无效 - 驳回

一种干式空心并联电抗器的过压保护方法
摘要：
一种干式空心并联电抗器的过压保护方法，采用过压保护电路对干式空心并联电抗器进行过压保护；过压保护电路包括阻容保护装置(20)以及避雷器(Ar)；阻容保护装置(20)与干式空心并联电抗器(10)并联，避雷器(Ar)与阻容保护装置(20)的吸收电容器(C)并联；干式空心并联电抗器(10)、阻容保护装置(20)以及避雷器(Ar)构成负载电路，过电压保护电路还包括与负载电路以及供电单元(30)连接成回路、用于接通或断开供电单元(30)给负载电路的供电的零电压断路器(40)。本发明的过压保护方法保障了干式空心并联电抗器的安全，实用性强。
摘要（英）：

The invention discloses an overvoltage protection method for a dry-type air-core shunt reactor, which adopts an overvoltage protection circuit to carry out overvoltage protection on the dry-type air-core shunt reactor. The overvoltage protection circuit comprises a resistance-capacitance protection device (20) and a lightning arrester (Ar), wherein the resistance-capacitance protection device (20)is connected with the dry-type air-core shunt reactor (10) in parallel, and the lightning arrester (Ar) is connected with an absorption capacitor (C) of the resistance-capacitance protection device (20) in parallel; and the dry-type air-core shunt reactor (10), the resistance-capacitance protection device (20) and the lightning arrester (Ar) form a load circuit. The overvoltage protection circuitfurther comprises a zero-voltage circuit breaker (40) which is connected with the load circuit and a power supply unit (30) to form a loop and is used for switching on or switching off the power supply of the power supply unit (30) to the load circuit. According to the overvoltage protection method, the safety of the dry-type air-core shunt reactor is guaranteed, and the practicability is high.

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