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Switch cabinet with safety early warning device

A safety warning and switchgear technology, applied in the direction of measuring devices, electrical devices, substation/distribution device casings, etc., can solve the problems of internal faults in the switchgear, inability to achieve timely warning, and burning to a certain extent.

Inactive Publication Date: 2022-06-24
JIANGSU CHENGPIN ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in the actual use of the existing technology, in places where the temperature difference between winter and summer is large, the early warning device does not distinguish between winter and summer, and only sets the temperature threshold to achieve early warning. Usually, the setting of the highest temperature thresh

Method used

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  • Switch cabinet with safety early warning device
  • Switch cabinet with safety early warning device
  • Switch cabinet with safety early warning device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] see Figure 1-7 , the present invention provides a kind of technical scheme: including:

[0035] Switchgear body 1;

[0036] The self-adaptive adjustment early warning control system 2 is arranged on the surface of the switch cabinet body 1 and is used for adaptive adjustment according to the temperature difference between the heat dissipation air inlet and the air outlet of the switch cabinet body 1 to reach the threshold value of the warning temperature;

[0037] The surface of the switch cabinet body 1 is respectively fixed with a yellow warning light 3 for reminding and a red warning light 4 for warning.

[0038] The adaptive adjustment early warning control system 2 includes:

[0039] The temperature difference conversion component 20 for converting the temperature difference into power and realizing early warning, the adaptive adjustment component 21 for adaptively adjusting the early warning threshold according to the temperature difference, for providing initi...

Embodiment 2

[0047] see Figure 8 Different from the first embodiment, the adaptive adjustment early warning control system 2 also includes a temperature change sensing module 1 261, a temperature change sensing module 2 262, a signal amplification module 263, a voltage acquisition module 264, a voltage comparison module 265, and a logic judgment module. 266. The early warning module 267 and the threshold input module 268, the output terminals of the temperature change sensing module 1 261 and the temperature change sensing module 2 262 are connected to the input terminal of the signal amplification module 263, and the output terminal of the signal amplification module 263 is connected to the voltage acquisition module 264. The input end is connected, the output end of the voltage acquisition module 264 is connected with the input end of the voltage comparison module 265, the output end of the voltage comparison module 265 is connected with the input end of the logic judgment module 266, an...

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Abstract

The invention discloses a switch cabinet with a safety early warning device. The switch cabinet comprises a switch cabinet body; and the self-adaptive adjustment early warning control system is arranged on the surface of the switch cabinet body and is used for carrying out self-adaptive adjustment according to the temperature difference between the heat dissipation air inlet and the heat dissipation air outlet of the switch cabinet body to reach a threshold value of an early warning temperature. Air pressure generated in a first air storage pipe is higher than air pressure generated in a second air storage pipe, so that mercury liquid in a connecting pipe and a cavity in the bottom of a storage cavity flows towards one end of the second air storage pipe, the liquid level of the mercury liquid in a rubber insulation ring rises, a first electric contact and a second electric contact are sequentially immersed, and the mercury liquid is discharged. And the yellow warning lamp and the red warning lamp are enabled to work, so that the condition for realizing the early warning function is a difference value generated between the external temperature and the heat dissipation temperature of the switch cabinet body, and the purposes of adaptively adjusting the condition for activating the early warning function according to the external temperature and timely performing early warning are realized.

Description

technical field [0001] The invention relates to the technical field of electrical equipment, in particular to a switch cabinet with a safety warning device. Background technique [0002] During the use of the switch cabinet, an early warning device is often installed on it to receive the signal from the temperature sensor in the switch cabinet. When the operating temperature of the equipment in the switch tube is too high, the early warning device will receive the signal and issue an alarm, giving the staff a warning. Warning. [0003] However, when the existing technology is actually used, in places where the temperature difference between winter and summer is large, the early warning device does not distinguish between winter and summer, and only realizes early warning by setting a temperature threshold. Usually, the setting of the highest temperature threshold should be higher than the load state temperature in normal use in summer. , This kind of early warning mode has ...

Claims

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Application Information

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IPC IPC(8): H02B1/30G01K7/22
CPCH02B1/30G01K7/22
Inventor 庄汉阳王德坤
Owner JIANGSU CHENGPIN ELECTRIC CO LTD