CN205665601U - Cabinet body wetness monitoring system and wind generating set's automatically controlled cabinet - Google Patents
Cabinet body wetness monitoring system and wind generating set's automatically controlled cabinet Download PDFInfo
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Abstract
Description
技术领域technical field
本实用新型涉及电气设备湿度控制领域，尤其涉及一种柜体湿度监控系统及风力发电机组的电控柜。The utility model relates to the field of humidity control of electrical equipment, in particular to a cabinet humidity monitoring system and an electric control cabinet of a wind power generating set.
背景技术Background technique
电控柜体中的器件对于湿度、凝露问题较为敏感，电控柜体运行在潮湿环境下时，较高的湿度会使柜体内部产生凝露，在柜体高湿度和凝露的环境下，电控柜体内电控器件容易出现短路、失效的问题，影响电控柜的正常运行，甚至引发安全事故。The devices in the electric control cabinet are more sensitive to humidity and condensation. When the electric control cabinet operates in a humid environment, the high humidity will cause condensation inside the cabinet. In the environment of high humidity and condensation of the cabinet , The electronic control devices in the electric control cabinet are prone to short circuit and failure problems, which affect the normal operation of the electric control cabinet and even cause safety accidents.
风力发电机组经常运行在恶劣的自然环境中，风力发电机组的变流器柜等电控柜的湿度控制系统可能会在未有效除湿时出现高湿度环境，这时已有的除湿方案往往不能保护好电气设备。Wind turbines often operate in harsh natural environments. The humidity control system of the electric control cabinet such as the converter cabinet of the wind turbine may appear in a high humidity environment without effective dehumidification. At this time, the existing dehumidification scheme often cannot protect Good electrical equipment.
实用新型内容Utility model content
本实用新型实施例提供一种柜体湿度监控系统及风力发电机组的电控柜，以保障柜体内电气设备的运行安全。The embodiment of the utility model provides a cabinet humidity monitoring system and an electric control cabinet of a wind power generating set, so as to ensure the safe operation of the electrical equipment in the cabinet.
本实用新型的一方面提供一种柜体湿度监控系统，所述柜体湿度监控系统包括安装在柜体内的除湿机和第一控制器，所述第一控制器分别与所述除湿机的控制端和所述柜体的电源控制部相连。One aspect of the utility model provides a cabinet humidity monitoring system, the cabinet humidity monitoring system includes a dehumidifier installed in the cabinet and a first controller, the first controller is connected with the control of the dehumidifier respectively The end is connected with the power control part of the cabinet.
进一步地，所述柜体湿度监控系统还包括安装在所述柜体内的湿度采集器，所述湿度采集器与所述第一控制器相连。Further, the cabinet humidity monitoring system further includes a humidity collector installed in the cabinet, and the humidity collector is connected to the first controller.
进一步地，所述湿度采集器包括第一湿度开关和第二湿度开关，所述第一湿度开关和第二湿度开关分别与所述第一控制器相连。Further, the humidity collector includes a first humidity switch and a second humidity switch, and the first humidity switch and the second humidity switch are respectively connected to the first controller.
进一步地，所述柜体湿度监控系统还包括安装在所述柜体内的第一加热器，所述第一控制器与所述第一加热器相连。Further, the cabinet humidity monitoring system further includes a first heater installed in the cabinet, and the first controller is connected to the first heater.
进一步地，所述柜体湿度监控系统还包括安装在所述柜体外的第二加热器和穿过所述柜体的水冷管道，所述第一控制器与所述第二加热器相连，所述第二加热器加热所述水冷管道；或者，所述柜体湿度监控系统还包括安装在所述柜体外的第二加热器和第二控制器以及穿过所述柜体的水冷管道，所述第一控制器与所述第二控制器通信连接，所述第二控制器与所述第二加热器相连，所述第二加热器加热所述水冷管道。Further, the cabinet humidity monitoring system also includes a second heater installed outside the cabinet and a water-cooling pipeline passing through the cabinet, the first controller is connected to the second heater, and the The second heater heats the water-cooled pipeline; or, the cabinet humidity monitoring system also includes a second heater and a second controller installed outside the cabinet and a water-cooled pipeline passing through the cabinet, so The first controller is connected in communication with the second controller, the second controller is connected with the second heater, and the second heater heats the water-cooled pipeline.
进一步地，所述柜体湿度监控系统还包括湿度报警器，所述第一控制器还与所述湿度报警器相连。Further, the cabinet humidity monitoring system further includes a humidity alarm, and the first controller is also connected to the humidity alarm.
进一步地，所述柜体湿度监控系统还包括可视化面板，所述可视化面板与所述湿度报警器相连。Further, the cabinet humidity monitoring system further includes a visualization panel connected to the humidity alarm.
进一步地，所述柜体湿度监控系统还包括安装在所述柜体内的风扇和温度传感器，所述温度传感器与所述第一控制器相连，所述第一控制器与所述风扇相连。Further, the cabinet humidity monitoring system further includes a fan and a temperature sensor installed in the cabinet, the temperature sensor is connected to the first controller, and the first controller is connected to the fan.
本实用新型提供的柜体湿度监控系统采用第一控制器，可控制除湿机工作并在需要时切断柜体电源，相比较现有技术，可有效保障柜体内电气设备的运行安全。The cabinet humidity monitoring system provided by the utility model adopts the first controller, which can control the operation of the dehumidifier and cut off the power supply of the cabinet when needed. Compared with the prior art, it can effectively guarantee the operation safety of the electrical equipment in the cabinet.
本实用新型的另一方面提供一种风力发电机组的电控柜，所述电控柜内设置网侧断路器和如上述技术方案所述的任一种柜体湿度监控系统，所述柜体湿度监控系统通过所述网侧断路器与电网侧输电线路相连，所述网侧断路器为所述柜体的电源控制部。Another aspect of the utility model provides an electric control cabinet for a wind power generating set, in which a grid-side circuit breaker and any cabinet humidity monitoring system as described in the above technical solution are arranged, and the cabinet The humidity monitoring system is connected to the grid-side power transmission line through the grid-side circuit breaker, and the grid-side circuit breaker is the power control part of the cabinet.
进一步地，所述第一控制器包括与风力发电机组的主控系统连接的通信接口。Further, the first controller includes a communication interface connected with the main control system of the wind power generating set.
本实用新型提供的风力发电机组的电控柜包括柜体湿度监控系统，该柜体湿度监控系统可控制除湿机工作并在需要时切断柜体电源，相比较现有技术，可有效保障柜体内电气设备的运行安全。The electric control cabinet of the wind power generating set provided by the utility model includes a cabinet humidity monitoring system. The cabinet humidity monitoring system can control the operation of the dehumidifier and cut off the power supply of the cabinet when needed. Safe operation of electrical equipment.
附图说明Description of drawings
图1为本实用新型实施例一中的柜体湿度监控系统的结构示意图；Fig. 1 is a schematic structural diagram of a cabinet humidity monitoring system in Embodiment 1 of the present invention;
图2为本实用新型实施例二中的柜体湿度监控系统的结构示意图。FIG. 2 is a schematic structural diagram of a cabinet humidity monitoring system in Embodiment 2 of the present invention.
附图标记说明：Explanation of reference signs:
1、电控柜；2、第一控制器；3、除湿机；4、第一湿度开关；5、第二湿度开关；6、温度传感器；7、风扇；8、空水换热器；9、电控器件；10、第一加热器；11、主循环泵；12、水冷泵控制器；13、第二加热器；14、湿度采集器。1. Electric control cabinet; 2. First controller; 3. Dehumidifier; 4. First humidity switch; 5. Second humidity switch; 6. Temperature sensor; 7. Fan; 8. Air-water heat exchanger; 9 1. Electric control device; 10. First heater; 11. Main circulation pump; 12. Water cooling pump controller; 13. Second heater; 14. Humidity collector.
具体实施方式detailed description
下面结合附图对本实用新型实施例的柜体湿度监控系统及风力发电机组的电控柜进行详细描述。The cabinet humidity monitoring system and the electric control cabinet of the wind power generating set according to the embodiment of the present invention will be described in detail below with reference to the accompanying drawings.
实施例一Embodiment one
如图1所示，本实用新型实施例提供的柜体湿度监控系统包括安装在柜体内的除湿机3和第一控制器2，第一控制器2分别与除湿机3的控制端和柜体的电源控制部相连。As shown in Figure 1, the cabinet humidity monitoring system provided by the embodiment of the utility model includes a dehumidifier 3 and a first controller 2 installed in the cabinet, and the first controller 2 is connected with the control terminal of the dehumidifier 3 and the cabinet respectively. connected to the power control unit.
本实用新型提供的柜体湿度监控系统采用第一控制器2，可控制除湿机3工作并在需要时切断柜体电源，相比较现有技术，可有效保障柜体内电气设备的运行安全。The cabinet humidity monitoring system provided by the utility model adopts the first controller 2, which can control the operation of the dehumidifier 3 and cut off the power supply of the cabinet when needed. Compared with the prior art, it can effectively guarantee the operation safety of the electrical equipment in the cabinet.
此外，柜体湿度监控系统还包括安装在柜体内的湿度采集器14，湿度采集器14与第一控制器2相连。In addition, the cabinet humidity monitoring system also includes a humidity collector 14 installed in the cabinet, and the humidity collector 14 is connected to the first controller 2 .
湿度采集器14用于监测柜体内的湿度值，当柜体内的湿度影响柜体内的电气设备的正常运行时(具体可以在大于等于第一湿度阈值时确定影响柜体内的电气设备正常运行)，第一控制器2控制除湿机3工作，以降低柜体内湿度，保证电气设备在相对干燥的环境中运行，降低柜体凝露风险；当柜体内的湿度严重危害柜体内的电气设备时(具体可以在大于等于第二湿度阈值时确定严重危害柜体内的电气设备正常运行)，第一控制器2通过切断柜体电源控制柜体内的电气设备停止运行。The humidity collector 14 is used to monitor the humidity value in the cabinet, when the humidity in the cabinet affects the normal operation of the electrical equipment in the cabinet (specifically, it can be determined to affect the normal operation of the electrical equipment in the cabinet when it is greater than or equal to the first humidity threshold value), The first controller 2 controls the operation of the dehumidifier 3 to reduce the humidity in the cabinet, ensure that the electrical equipment operates in a relatively dry environment, and reduce the risk of condensation in the cabinet; when the humidity in the cabinet seriously endangers the electrical equipment in the cabinet (specifically It can be determined that the normal operation of the electrical equipment in the cabinet is seriously endangered when it is greater than or equal to the second humidity threshold), and the first controller 2 controls the electrical equipment in the cabinet to stop running by cutting off the power supply of the cabinet.
此外，湿度采集器14包括第一湿度开关4和第二湿度开关5，第一湿度开关4和第二湿度开关5分别与所述第一控制器2相连。In addition, the humidity collector 14 includes a first humidity switch 4 and a second humidity switch 5 , and the first humidity switch 4 and the second humidity switch 5 are respectively connected to the first controller 2 .
具体地，第一湿度开关4在小于第一湿度阈值时断开并且在大于等于第一湿度阈值时闭合，第二湿度开关5在小于第二湿度阈值时断开并且在大于等于第二湿度阈值时闭合。Specifically, the first humidity switch 4 is disconnected when it is less than the first humidity threshold and is closed when it is greater than or equal to the first humidity threshold, and the second humidity switch 5 is disconnected when it is less than the second humidity threshold and is greater than or equal to the second humidity threshold. when closed.
可选地，第一湿度开关4可以在小于第一湿度阈值和大于等于第一湿度阈值的不同情况下发送不同的开关量信号，第二湿度开关5可以在小于第二湿度阈值和大于等于第二湿度阈值的不同情况下发送不同的开关量信号。Optionally, the first humidity switch 4 can send different switching signals when it is less than the first humidity threshold and greater than or equal to the first humidity threshold, and the second humidity switch 5 can send different switching signals when it is less than the second humidity threshold and greater than or equal to the first humidity threshold. Two different switching signals are sent under different humidity thresholds.
在本实用新型实施例中，第一湿度阈值小于第二湿度阈值。第一湿度阈值为影响正常电气设备工作的湿度阈值，第二湿度阈值为严重危害电气设备工作的湿度阈值，根据第一湿度开关4和第二湿度开关5的通断情况或者发送的开关量信号，第一控制器2在柜体内湿度增大使湿度达到第一湿度阈值时，首先启动除湿机3以降低湿度，如果此时由于周围环境的影响湿度继续增大，并达到第二湿度阈值，则需要控制柜体内的电气设备停止工作，以保护柜体内电气设备。In the embodiment of the present invention, the first humidity threshold is smaller than the second humidity threshold. The first humidity threshold is the humidity threshold that affects the normal operation of electrical equipment, and the second humidity threshold is the humidity threshold that seriously endangers the operation of electrical equipment. , the first controller 2 first starts the dehumidifier 3 to reduce the humidity when the humidity in the cabinet increases so that the humidity reaches the first humidity threshold. If the humidity continues to increase due to the influence of the surrounding environment and reaches the second humidity threshold, then It is necessary to control the electrical equipment in the cabinet to stop working to protect the electrical equipment in the cabinet.
此外，第一湿度阈值和第二湿度阈值的大小可以调整，根据不同的柜体工作环境调整第一湿度阈值和第二湿度阈值的大小，可以保证柜体安全运行。In addition, the first humidity threshold and the second humidity threshold can be adjusted. Adjusting the first humidity threshold and the second humidity threshold according to different working environments of the cabinet can ensure safe operation of the cabinet.
此外，柜体湿度监控系统还包括湿度报警器(图中未示出)，第一控制器2还与湿度报警器相连。In addition, the cabinet humidity monitoring system also includes a humidity alarm (not shown in the figure), and the first controller 2 is also connected to the humidity alarm.
当柜体内的湿度大于等于第二湿度阈值时，第一控制器2在切断柜体电源的同时发出报警信号并传送给湿度报警器，湿度报警器通过指示灯或者喇叭等方式进行过湿报警，以提醒柜体运行维护人员。When the humidity in the cabinet is greater than or equal to the second humidity threshold, the first controller 2 sends an alarm signal while cutting off the power supply of the cabinet and transmits it to the humidity alarm, and the humidity alarm performs an over-humidity alarm through an indicator light or a horn, etc. To remind the cabinet operation and maintenance personnel.
此外，柜体湿度监控系统还包括可视化面板(图中未示出)，可视化面板与湿度报警器相连。可视化面板可以通过显示故障名称进行过湿报警，使过湿报警内容更加具体。In addition, the cabinet humidity monitoring system also includes a visual panel (not shown in the figure), which is connected to the humidity alarm. The visual panel can perform an over-humidity alarm by displaying the fault name, making the content of the over-humidity alarm more specific.
此外，柜体湿度监控系统还包括安装在柜体内的第一加热器10，第一控制器2与第一加热器10相连。In addition, the cabinet humidity monitoring system also includes a first heater 10 installed in the cabinet, and the first controller 2 is connected to the first heater 10 .
除湿机3工作的环境温度较高或较低，都会影响除湿机3的除湿效率。在柜体温度较低时，采用第一加热器10升温可以提高除湿机3的除湿效率。The dehumidification efficiency of the dehumidifier 3 will be affected if the ambient temperature of the dehumidifier 3 is high or low. When the temperature of the cabinet body is low, the dehumidification efficiency of the dehumidifier 3 can be improved by using the first heater 10 to raise the temperature.
此外，柜体湿度监控系统还包括安装在柜体内的风扇7和温度传感器6，温度传感器6与第一控制器2相连，第一控制器2与风扇7相连。In addition, the cabinet humidity monitoring system also includes a fan 7 and a temperature sensor 6 installed in the cabinet, the temperature sensor 6 is connected to the first controller 2 , and the first controller 2 is connected to the fan 7 .
风扇7可为柜体内水冷系统的空水换热器8降温，进而降低水冷管道内的冷却液的温度，随着冷却液在柜体内的水冷管道内的流动，达到为柜体降温的目的。The fan 7 can cool down the air-water heat exchanger 8 of the water-cooling system in the cabinet, and then reduce the temperature of the cooling liquid in the water-cooling pipeline. Along with the flow of the cooling liquid in the water-cooling pipeline in the cabinet, the purpose of cooling the cabinet is achieved.
温度传感器6采集柜体内的实时温度数据并传送给第一控制器2，当柜体内的温度高于第一温度阈值时，第一控制器2根据该实时温度数据控制风扇7启动，为柜体降温，以提高除湿机3的除湿效率。当柜体内的温度低于预设温度阈值时，第一控制器2根据该实时温度数据控制第一加热器10启动，为柜体升温，以提高除湿机3的除湿效率。The temperature sensor 6 collects the real-time temperature data in the cabinet and transmits it to the first controller 2. When the temperature in the cabinet is higher than the first temperature threshold, the first controller 2 controls the fan 7 to start according to the real-time temperature data, thereby providing a high temperature for the cabinet. Lower the temperature to increase the dehumidification efficiency of the dehumidifier 3. When the temperature in the cabinet is lower than the preset temperature threshold, the first controller 2 controls the first heater 10 to start according to the real-time temperature data to heat up the cabinet to improve the dehumidification efficiency of the dehumidifier 3 .
本实用新型实施例中的柜体湿度监控系统可以应用在电控柜中，当柜体湿度监控系统应用在电控柜中时，柜体即为电控柜体。The cabinet humidity monitoring system in the embodiment of the utility model can be applied in an electric control cabinet. When the cabinet humidity monitoring system is applied in an electric control cabinet, the cabinet is an electric control cabinet.
实施例二Embodiment two
本实用新型实施例在实施例一的基础上，将设置在柜体内的加热器改为设置在柜体外。如图2所示，本实用新型实施例中的柜体湿度监控系统还包括安装在柜体外的第二加热器13和穿过柜体的水冷管道(图中未标示)，第一控制器2与第二加热器13相连，第二加热器13加热水冷管道。In the embodiment of the present invention, on the basis of the first embodiment, the heater arranged inside the cabinet is changed to be arranged outside the cabinet. As shown in Figure 2, the cabinet humidity monitoring system in the embodiment of the present invention also includes a second heater 13 installed outside the cabinet and a water cooling pipeline (not shown) passing through the cabinet, the first controller 2 It is connected with the second heater 13, and the second heater 13 heats the water cooling pipeline.
第二加热器13可与水冷管道直接相连，也可以设置在水冷管道附近，作用均为加热水冷管道。The second heater 13 can be directly connected to the water-cooling pipeline, and can also be arranged near the water-cooling pipeline, both for heating the water-cooling pipeline.
电控柜体内一般使用水冷系统散热，上述穿过柜体的水冷管道与柜体外的主循环泵11连接，第二加热器13可以为柜体外的水冷管道中的冷却液加热，随着冷却液在柜体内的水冷管道内的流动，达到为柜体升温的目的。The electric control cabinet generally uses a water cooling system to dissipate heat. The above-mentioned water cooling pipe passing through the cabinet is connected to the main circulation pump 11 outside the cabinet. The second heater 13 can heat the coolant in the water cooling pipe outside the cabinet. The flow in the water-cooling pipeline in the cabinet achieves the purpose of heating the cabinet.
可选的，第二加热器13可由位于柜体外的第二控制器(图中未示出)控制，该第二控制器与第一控制器2通信连接，可以从第一控制器2获取柜体内的实时温度数据，并根据该实时温度数据控制第二加热器13为水冷系统的水冷管道加热。Optionally, the second heater 13 can be controlled by a second controller (not shown in the figure) located outside the cabinet, the second controller communicates with the first controller 2, and the cabinet can be obtained from the first controller 2 real-time temperature data in the body, and control the second heater 13 to heat the water-cooling pipes of the water-cooling system according to the real-time temperature data.
在本实用新型实施例中，第二控制器为水冷泵控制器12，其可以根据电控柜体内温度的情况对电控柜体内的水冷系统的主循环泵11进行控制，在温度较高时启动水冷系统的主循环泵11并在温度较低时将主循环泵11关闭。该设置可以使电控柜体内温度降低，提高除湿机3的除湿效率。In this utility model embodiment, the second controller is a water-cooled pump controller 12, which can control the main circulation pump 11 of the water-cooling system in the electric control cabinet according to the temperature in the electric control cabinet. Start the main circulation pump 11 of the water cooling system and close the main circulation pump 11 when the temperature is low. This setting can reduce the temperature inside the electric control cabinet and improve the dehumidification efficiency of the dehumidifier 3 .
本实用新型提供的柜体湿度监控系统采用第一控制器2，可控制除湿机3工作并在需要时切断柜体电源，相比较现有技术，可有效保障柜体内电气设备的运行安全。The cabinet humidity monitoring system provided by the utility model adopts the first controller 2, which can control the operation of the dehumidifier 3 and cut off the power supply of the cabinet when needed. Compared with the prior art, it can effectively guarantee the operation safety of the electrical equipment in the cabinet.
实施例三Embodiment Three
本实用新实施例还提供一种风力发电机组的电控柜，所述电控柜内设置网侧断路器和如实施例一或实施例二中的柜体湿度监控系统，所述柜体湿度监控系统通过网侧断路器与电网侧输电线路相连，所述网侧断路器为所述柜体的电源控制部，所述电网侧输电线路向所述电控柜提供电源。The embodiment of the present utility model also provides an electric control cabinet for a wind power generating set, in which a grid-side circuit breaker and a cabinet humidity monitoring system as in Embodiment 1 or Embodiment 2 are arranged, and the cabinet humidity The monitoring system is connected to the grid-side transmission line through a grid-side circuit breaker, the grid-side circuit breaker is the power control unit of the cabinet, and the grid-side transmission line provides power to the electric control cabinet.
网侧断路器与电控柜1内的电控器件9连接，当柜体的湿度大于等于第二湿度阈值时，柜体湿度监控系统的第一控制器2控制网侧断路器断开，以切断柜体电源。The grid-side circuit breaker is connected to the electric control device 9 in the electric control cabinet 1. When the humidity of the cabinet body is greater than or equal to the second humidity threshold, the first controller 2 of the cabinet humidity monitoring system controls the grid-side circuit breaker to be disconnected, so as to Cut off power to the cabinet.
本实用新型提供的风力发电机组的电控柜包括柜体湿度监控系统，该柜体湿度监控系统可控制除湿机3工作并在需要时切断柜体电源，相比较现有技术，可有效保障柜体内电气设备的运行安全。The electric control cabinet of the wind power generating set provided by the utility model includes a cabinet humidity monitoring system. The cabinet humidity monitoring system can control the dehumidifier 3 to work and cut off the power supply of the cabinet when needed. Compared with the prior art, it can effectively protect the cabinet Safe operation of electrical equipment in the body.
此外，第一控制器2包括与风力发电机组的主控系统连接的通信接口。In addition, the first controller 2 includes a communication interface connected with the main control system of the wind power generating set.
通过该通信接口，柜体内的湿度大于等于第二湿度阈值时，第一控制器2向主控系统传输报警信号，以便主控系统进行处理。第一控制器2切断柜体电源的命令也可以通过主控系统发出。Through the communication interface, when the humidity in the cabinet is greater than or equal to the second humidity threshold, the first controller 2 transmits an alarm signal to the main control system, so that the main control system can process it. The command for the first controller 2 to cut off the power supply of the cabinet can also be sent by the main control system.
以上，仅为本实用新型的具体实施方式，但本实用新型的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本实用新型揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本实用新型的保护范围之内。因此，本实用新型的保护范围应以权利要求的保护范围为准。The above are only specific embodiments of the present utility model, but the scope of protection of the present utility model is not limited thereto. Anyone familiar with the technical field can easily think of changes or replacements within the technical scope disclosed in the present utility model. All should be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be based on the protection scope of the claims.
Claims (10)
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620518731.XU CN205665601U (en) | 2016-05-31 | 2016-05-31 | Cabinet body wetness monitoring system and wind generating set's automatically controlled cabinet |
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| CN201620518731.XU CN205665601U (en) | 2016-05-31 | 2016-05-31 | Cabinet body wetness monitoring system and wind generating set's automatically controlled cabinet |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107544592A (en) * | 2017-09-14 | 2018-01-05 | 国家电网公司 | Temperature and humidity control device |
| CN112527032A (en) * | 2019-09-17 | 2021-03-19 | 北京金风科创风电设备有限公司 | Method, device and system for monitoring humidity of electric control cabinet |
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2016
- 2016-05-31 CN CN201620518731.XU patent/CN205665601U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107544592A (en) * | 2017-09-14 | 2018-01-05 | 国家电网公司 | Temperature and humidity control device |
| CN112527032A (en) * | 2019-09-17 | 2021-03-19 | 北京金风科创风电设备有限公司 | Method, device and system for monitoring humidity of electric control cabinet |
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