Transformer substation outdoor terminal box
A terminal box and substation technology, applied in substation/distribution device housing, substation/switch layout details, substation/switchgear cooling/ventilation, etc. Sensitivity effects, etc.
Active Publication Date: 2015-03-25
STATE GRID CORP OF CHINA +1
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Problems solved by technology
my country has used automatic heating and dehumidification controllers to prevent condensation in terminal boxes for more than ten years. There are also some problems in regional applications. For example, in the rainy season in the south, sometimes the air humidity inside the terminal box is high, and there is even condensation in the terminal box. The degree of condensation has not been reached, or the condensation sensor has been corroded by dust and gas in the air for a long time, which affects the sensitivity of the sensor, and the condensation controller cannot start the heater in time, resulting in the failure of the condensation controller. threat to the security of
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[0014] As shown in Figure 1, it is an outdoor terminal box of a substation of the present invention, including a cabinet 1 and a cabinet door 12, and the cabinet is equipped with a dehumidification circulation dryer 7, a condensation device, a heater 11 and temperature and humidity monitoring Condenser 14, said dew device includes dew chamber 8, dew sensor 9 and dew controller 10, said dehumidification circulating dryer 7 communicates with dew chamber 8, heater 11, dew sensor 9 respectively It is connected with the condensation controller 10 . The humid air in the cabinet 1 is pumped into the condensation chamber 8 through the dehumidification circulation dryer 7 to separate the air from the water vapor in the air, and the water vapor in the cabinet 1 is promptly released by the dehumidification circulation dryer 7 is collected into the condensation chamber 8, and under the control of the condensation controller 10, it gradually condenses into water drops or ice crystals. Spe...
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The invention discloses a transformer substation outdoor terminal box. The transformer substation outdoor terminal box comprises a box bin and a box door. A dehumidifying circulating dryer, a condensation device, a heater and a temperature and humidity monitoring device are arranged in the box bin. The condensation device comprises a condensation chamber, a condensation sensor and a condensation controller. The dehumidifying circulating dryer is communicated with the condensation chamber. The heater and the condensation sensor are connected with the condensation controller separately. According to the transformer substation outdoor terminal box of the invention, damp air in the box bin is extracted into the condensation chamber for gas-water separator so as to realize the effect of air drying in the box bin.
Description
technical field [0001] The invention relates to an outdoor terminal box of a substation, and relates to a power system. Background technique [0002] The internal space of the terminal box is very compact. In order to ensure the internal insulation level in high-humidity areas and ensure the reliable operation of the device, higher requirements are put forward for the moisture-proof and anti-condensation inside the box. my country has used automatic heating and dehumidification controllers to prevent condensation in terminal boxes for more than ten years. There are also some problems in regional applications. For example, in the rainy season in the south, sometimes the air humidity inside the terminal box is high, and there is even condensation in the terminal box. The degree of condensation has not been reached, or the condensation sensor has been corroded by dust and gas in the air for a long time, which affects the sensitivity of the sensor, and the condensation controller...
Claims
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IPC IPC(8): H02B1/00H02B1/56H02B1/28
Inventor 张浩周平刘学东黄志华陆翔高健周建峰
Owner STATE GRID CORP OF CHINA