高压电网中众多电气设备本身和设备之间的连接点是电力输送最薄弱环节。随着负荷的增大，这些薄弱环节会出现发热现象，并形成恶性循环：温升、膨胀、收缩、氧化，电阻增大、再度升温直至酿成事故。

High voltage power grid of many electrical equipment link between itself and the equipment is the weakest link in electricity transmission. With the increase of load, the weak link will appear fever phenomenon, and form a vicious circle: temperature, expansion, contraction, oxidation, resistance increases, heating up again until the accident. 

根据运行经验，需要监测的高压电器设备易发热部位如下：

According to the needs of operating experience, monitoring of high voltage electrical equipment easy fever parts as follows: 

（1）高压（220KV、110KV、35KV、10KV）变压器的输入输出连接点和箱体表面；

(1) high voltage (220 kv, 110 kv, 35 kv and 10 kv) transformer input and output connection point and the face; 

（2）高压母线、母排接头，穿墙套管，铜铝过渡处；

(2) the high voltage bus, bus connector, wear casing wall, copper aluminum transition; 

（3）高压开关柜的动静触头及柜内断路器等各种接点；

(3) of contacts in high-voltage switchgear and circuit breaker contained in all kinds of contact such as; 

（4）地下电缆及电缆夹层通道；

(4) underground cable and cable interlayer channel; 

（5）发电机定子、干式箱式变电站等的发热部位；

(5) the generator stator, dry hot parts of the box-type substation, etc; 

（6）刀闸、开关等连接部位

(6) breaker and switch the connection parts 

通过利用在发热部位触点位置安装无线传感器，实时采集各触点的温度，通过无线方式上传到监控中心后，变电运行人员可快速了解设备是否有发热情况,从而可为设备安全的运行提供技术保障。

By using location installed wireless sensor in the heating area, real time collection and the temperature of each contact, wirelessly uploaded to the monitoring center, substation operation staff can quickly understand the equipment if there is fever, which can provide technical support for the operation of the equipment safety.