A compensation cabinet for low pressure

The utility model discloses a compensation cabinet for low pressure, it includes the cabinet body, miniature circuit breaker, ac contactor, assists room, temperature and humidity sensor, heating chamber and play tuber pipe, supplementary indoor portion is provided with the air -supply line, and the inside fixed mounting in the upper end of air -supply line has an induced air fan, temperature and humidity sensor and control panel electric connection, the heating chamber communicates with the lower extreme export of air -supply line, and the inside heater that is provided with of heating chamber, the upper end import and heating chamber intercommunication that go out the tuber pipe, the inside fixed mounting of lower extreme export who just goes out the tuber pipe has a fan, the heating chamber still with the internal portion of cabinet intercommunication, this design in use can be to cooling down in the cabinet and dehumidify, crosses when low in the temperature simultaneously, heat in can also giving the cabi