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Device for automatically controlling humidity in a cabinet

An automatic control device, technology of internal humidity, applied in the direction of non-electric variable control, control/regulation system, simultaneous control of multiple variables, etc.

Inactive Publication Date: 2012-04-18
ZHUJI POWER SUPPLY BUREAU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, judging from the situation in recent years, the switchgear located in the basement or low-lying place is relatively humid due to its geographical location, which makes the humidity in the switch cabinet relatively high, and the main indoor dehumidification equipment (indoor moisture absorber and SM6 ring network cabinet) The attached heaters) are manually controlled, unable to dehumidify in time, causing condensation, water film and other phenomena on the surface of various equipment in the cabinet, and flickering, creepage or discharge on the surface of some equipment, which affects the insulation level of the equipment and the service life , causing faults such as equipment insulation breakdown, which greatly reduces the reliability of the safe operation of power supply equipment
After this type of accident, although some users with dual power sources can be restored through power adjustment, the normal power consumption of most industrial and commercial enterprises and residents within the power supply range is still affected. It affects the production and life of users, and even affects the image of the enterprise

Method used

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  • Device for automatically controlling humidity in a cabinet
  • Device for automatically controlling humidity in a cabinet
  • Device for automatically controlling humidity in a cabinet

Examples

Experimental program
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Effect test

Embodiment 2

[0017] From May to July 2011, statistics were made on the average humidity of the following five opening and closing stations equipped with automatic humidity control devices (the above March is the period with the highest humidity in the region). The sampling method is randomly recorded once a day, and the results are shown in Table 1: From the table, the average humidity is 63.2°F.

[0018] The humidity automatic control device in the cabinet of this embodiment has a humidity of less than 65°F, which ensures the safe and reliable operation of the SM6 series switchgear in an environment with a humidity not greater than 70°F.

[0019] In 2011, with the addition of 22 switching stations, there were 12 fewer accidents than in 2011, which greatly reduced the power outage time and scope of power outages for users due to failures.

[0020] The automatic humidity control device in the cabinet of this embodiment effectively solves the accidents caused by condensation and water film o...

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Abstract

The invention provides a device for automatically controlling humidity in a cabinet. The device comprises a bottom plate, wherein a terminal strip conditioning tank, an automatic dehumidification controller and an alternating current contactor are arranged on the bottom plate respectively; a terminal block is arranged on the terminal strip conditioning tank; and a humidity probe is arranged on the automatic dehumidification controller. By the device, the conventional control mode of switching on / off dehumidification equipment is changed; due to the adoption of an automatic control technology, the dehumidification equipment can be automatically switched according to the humidity in a switch cabinet; and the device has the advantages that: the working efficiency of the dehumidification equipment is comprehensively improved, the labor intensity of personnel is reduced, the safe operation reliability of electrical equipment is improved, and the like.

Description

technical field [0001] The invention relates to an automatic control device for humidity in a cabinet. Background technique [0002] Within the scope of the power system, SM6 series switch cabinets have been continuously promoted and applied, and have become the main equipment used for 10kV switching, and are responsible for the power supply of the main urban area. However, judging from the situation in recent years, the switchgear located in the basement or low-lying place is relatively humid due to its geographical location, which makes the humidity in the switchgear relatively high, and the main indoor dehumidification equipment (indoor moisture absorber and SM6 ring network cabinet) The attached heaters) are manually controlled, unable to dehumidify in time, causing condensation, water film and other phenomena on the surface of various equipment in the cabinet, and flickering, creepage or discharge on the surface of some equipment, which affects the insulation level of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D27/02
Inventor 蒋柯青杨安民黄利军俞杭科陈跃赵先锋
Owner ZHUJI POWER SUPPLY BUREAU
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