The accident happens from time to time due to high temperature of main contacts inside HV switchgear cabinet. It is difficult to monitor the temperature there under high voltage condition.

高压开关柜一次触头因温度过高而造成事故时有发生，由于处于高电压状态，对该处的温度监测较为困难。

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This system has much advantages such as control intelligence, high precision, real control and that can work stably in the high voltage and strong electric field working condition.

该系统能稳定工作在高电压、强电场的工作环境下，且具有控制智能化、精度高和实时性强的特点。

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This paper enumerates the main monitoring functions of the intelligent device, and describes the condition monitoring principle of the stoke, operating speed, close spring of high voltage switchboard.

本文列举了装置的主要监测项目，说明了高压断路器的行程和速度、合闸弹簧状态监测的原理。

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