Switchgear heat dissipation control device
A control device and switchgear technology, applied in the direction of substation/switchgear cooling/ventilation, etc., to achieve good safety, flexible installation location, and accurate temperature measurement
Active Publication Date: 2016-09-21
MIANYANG POWER SUPPLY COMPANY STATE GRID SICHUANELECTRIC POWER +1
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Problems solved by technology
[0003] The purpose of the present invention is to provide a switchgear heat dissipation control device, which solves the problem of temperature detection and heat dissipation of the sensor used to detect the temperature of the switchgear in the substation, and overcomes the shortcomings of the prior art
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[0012] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0013] figure 1 It shows an embodiment of the heat dissipation control device of the switch cabinet of the present invention: a heat dissipation control device of the switch cabinet, including a PCB circuit board and a heat dissipation module, and the PCB circuit board includes a power conversion module, a temperature acquisition module, a current amplification module and a micro The processor, the power conversion module is used to convert 220V AC voltage into 12V DC voltage to supply power to the cooling module through the current amplification module, and convert the 12V DC voltage into 3.3V DC...
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The invention discloses a switch cabinet monitoring device of a transformer station, in particular to a heat dissipation control device of a switch cabinet. The heat dissipation control device comprises a PCB (Printed Circuit Board) and a heat dissipation module, wherein the PCB comprises a power conversion module, a temperature acquisition module, a current amplification module and a microprocessor. According to the invention, the microprocessor is used for reading temperature signals from a temperature sensor, sending PWM (Pulse Width Modulation) wave signals through conversion and controlling the heat dissipation power of the heat dissipation module according to the intensity of the PWM wave signals. The heat dissipation control device has the advantages of high reliability, good safety, flexible installing positions and accuracy in temperature measurement and is suitable for non-contact temperature measuring equipment in the switch cabinet of the transformer station.
Description
technical field [0001] The invention relates to a monitoring device for a substation switch cabinet, in particular to a heat dissipation control device for a switch cabinet. Background technique [0002] The switchgear is the key equipment of the substation, and its normal operation is directly related to the safe operation of the entire power grid. Due to changes in the operating environment, the temperature of the contacts of the switchgear may rise abnormally, resulting in fire accidents. In actual operation, it is a very important means to detect the temperature of the switchgear through the sensor, but because the sensor needs to work for a long time, the control and detection of its own temperature is also very important. Always within the normal range is an important way to prevent temperature failure accidents. Contents of the invention [0003] The object of the present invention is to provide a heat dissipation control device for switchgear, which solves the pr...
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IPC IPC(8): H02B1/56
Inventor 余伟阎召进张浩贾翔付志中
Owner MIANYANG POWER SUPPLY COMPANY STATE GRID SICHUANELECTRIC POWER