A humidity control and display device in a substation terminal box
A technology of humidity control and display device, applied in the field of electronics, can solve the problems affecting the use effect and service life of the terminal box of the substation, etc.
Active Publication Date: 2016-09-14
国网江苏省电力有限公司溧阳市供电分公司 +3
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Problems solved by technology
Excessive humidity, especially in the rainy season, will seriously affect the quality, use effect and service life of the substation terminal box
Method used
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[0013] Such as figure 1 Shown: a humidity control and display device in a substation terminal box. The input end of the transformer T is connected with 220V alternating current, and the input end of the transformer T has a power switch K. The output end of the transformer T is connected to the input end of the bridge rectifier circuit D1-D4. The output terminal of the bridge rectifier circuit is connected with the indicator light La and the filter capacitor C1. A current limiting resistor R and a capacitor C2 connected in series are connected across the two ends of the filter capacitor C1. A humidity control component WK and a relay J connected in series are connected across the two terminals of the filter capacitor C1. One end of the indicator lamp Lb and speaker S connected in series is connected to the negative pole of the AC power supply, and the other end is connected to the positive pole of the AC power supply through the normally closed contact J1 of the relay J. On...
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The invention provides a device for controlling and displaying the humidity in a substation terminal box. A 220V alternating current power supply is connected with a transformer T, and the transformer T is connected with bridge rectifier circuits D1-D4; the output ends of the bridge rectifier circuits are connected with an indicator light La and a filter capacitor C1 respectively; one end of the filter capacitor C1 is in bridging connection with a current-limiting resistor R and a capacitor C2 which are connected in series, and the other end of the filter capacitor C1 is in bridging connection with a humidity control assembly WK and a relay J which are connected in series; one end of a displayer formed by connecting an indicator light Lb and a horn S in series is connected with the negative electrode of the alternating current power supply, and the other end of the displayer is connected with the positive electrode of the alternating current power supply through a normally-closed contact J1 of the relay J; one end of a combination formed by connecting an indicator light Lc and a dehumidifier DSP in series is connected with the negative electrode of the alternating current power supply, and the other end of the combination is connected with the positive electrode of the alternating current power supply through a normally-closed contact J2 of the relay J. The device can automatically control the humidity in the substation terminal box and display abnormal conditions of the humidity in the box in time in an acousto-optic mode.
Description
[0001] This application is a divisional application of the invention patent application with the application number 200910233682.X and the application date on October 28, 2009, and the invention name is "humidity control and display device in the substation terminal box". technical field [0002] The invention belongs to the field of electronic technology, and relates to a humidity control and display device in a substation terminal box. Background technique [0003] The quality and use effect of the substation terminal box are easily affected by humidity. Excessive humidity, especially in the rainy season, will seriously affect the quality, use effect and service life of the substation terminal box. Contents of the invention [0004] The purpose of the present invention is to provide a humidity control and display device in the substation terminal box which can automatically control the humidity in the substation terminal box and timely acousto-optic display the abnormal ...
Claims
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IPC IPC(8): G05D22/02
Inventor 陈宇飞朱建敏
Owner 国网江苏省电力有限公司溧阳市供电分公司