Zero sequence voltage protection device of 6-10kV ungrounded system

The utility model discloses a zero-sequence voltage protection device of a 6-10kV ungrounded system, which comprises a frame body assembly, the frame body assembly comprises a cabinet body, a heater arranged at the bottom in the cabinet body and a temperature and humidity controller arranged on one side of the heater, and the heater is electrically connected with the temperature and humidity controller; and the protection assembly comprises a voltage transformer arranged in the cabinet body, a fuse connected with the voltage transformer, and a relay protection device. According to the utility model, through zero sequence voltage protection, rapid isolation of a grounding fault of a 10kV line side of a 6-10kV neutral point ungrounded system is realized, further expansion of the fault is avoided, and the risk of electric shock of personnel is reduced; and safe and stable operation of a 10kV line is ensured. 本实用新型公开了一种6-10kV不接地系统的零序电压保护装置，包括，架体组件包括柜体、设置在柜体内底部的加热器以及设置在加热器一侧的温湿度控制器，所述加热器和温湿度控制器电连接；以及保护组件，包括设置在柜体内的