CN103163921A - Cable trench intelligent management system - Google Patents
Cable trench intelligent management system Download PDFInfo
- Publication number
- CN103163921A CN103163921A CN2013100802648A CN201310080264A CN103163921A CN 103163921 A CN103163921 A CN 103163921A CN 2013100802648 A CN2013100802648 A CN 2013100802648A CN 201310080264 A CN201310080264 A CN 201310080264A CN 103163921 A CN103163921 A CN 103163921A
- Authority
- CN
- China
- Prior art keywords
- cable duct
- management system
- intelligent management
- data analysis
- cable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The invention provides a cable trench intelligent management system. The cable trench intelligent management system comprises a weather information collecting device, a cable trench internal environment collecting device, a data analyzing and control device, a drainage device, a heating device, a cable trench opening device and a main controller. The drainage device, the electric heating device and the cable trench opening device are parallel and connected with the data analyzing and control device respectively, and the weather information collecting device and the cable trench internal environment collecting device are parallel and connected with the data analyzing and control device respectively. The able trench intelligent management system collects information through the weather information collecting device and the cable trench internal environment collecting device and feeds back the information to the data analyzing and control device, opens the drainage device, the heating device or the cable trench opening device through the data analyzing and control device, and displays obtained information on a displayer, prompts workers through an alarm when faults happen, processes the faults times, and guarantees stable running of the system. The cable trench intelligent management system is simple in structure, simple and convenient to operate and worthy to be popularized and applied and improves working efficiency.
Description
Technical field
The invention belongs to Regulation maintenance equipment technology field, be specifically related to a kind of cable duct intelligent management system.
Background technology
cable duct of substation mainly lays the power equipment secondary cable, control cables, power cable and communication cable, these cables go wrong directly affects the power equipment safety operation, cable trench water collecting, moist, sultry environment has a direct impact the insulation of cable, cable insulation destroys and causes ground short circuit, the accident such as catch fire happens occasionally, but can not natural ventilation in cable duct, humidity over limit, the difficult row of ponding is the universal phenomenon in substation management work, for the cable duct inner cable is operated in the dry environment that ventilates, we regularly raise cable channel cover plate ventilation dehumidifying, in 500 kilovolts of large-scale substations, four or five thousand cable channel cover plates are arranged, a cable channel cover plate foot has 150 jin of weights, ventilate to cable duct for a long time, the Chaoyang, the work of dehumidifying has become operations staff's headache thing.A kind of cable duct Auto-drainage warning device is disclosed in CN 202433053 U, have submersible pump and control circuit, wherein: described submersible pump is arranged in the cable duct gully, described control circuit has liquid level relay, the normally open contact that liquid level relay connects A.C. contactor is connected in the start-up circuit of submersible pump, described liquid level relay is connected with the water level sampling probe, described water level sampling probe is arranged on cable channel cover plate by insulating material preparation, and the inside of cable duct gully is stretched in described water level sampling probe test side.Compared with prior art, have simple in structurely, easy to use, the ponding in can the Automatic Extraction cable duct has guaranteed the aeration-drying in cable duct, and has had warning function, immediately understands the ponding situation, has ensured the safety of electric system.Yet the mode that it has only taked to draw water has been taken out the ponding in cable duct, fail to realize ventilation, dehumidifying to cable duct, disclose in CN 202564900 U and a kind ofly can carry out the conduit line dehumidifying cover plate that removal function was tested and possessed to humiture to conduit line.The present invention solves mainly that conduit line humidity, ventilation condition are poor, the staff patrols and examines the large problem of workload.Technical scheme of the present invention is: a kind of conduit line dehumidifying cover plate, comprise head end lid and tail end cover, an inspection cover is respectively established in outside at head end lid and tail end cover, a metal filter is respectively established in inside at head end lid and tail end cover, be positioned at the metal filter in head end lid inside and be provided with a flow fan, be positioned at the metal filter in tail end cover inside and be provided with a Hygrothermograph, the present invention has advantages of that workload is little, efficiency is high; Yet it still requires the staff to make an inspection tour the unlatching cowling, ventilate, and this cable channel cover plate of One's name is legion has also increased maintenance cost, so need a kind of system that can automatically open ventilation, dehumidifying, draining, can complete the environmental aspect in automatic monitoring ditch, automatically select the suitable method of operation, realize ventilating, heating dehumidifying or open water pump drainage, liberate a large amount of labours, can increase work efficiency, guaranteed the safe and stable operation of equipment.
Summary of the invention
The invention provides a kind of cable duct intelligent management system of simple to operate, high efficiency.
The technical scheme that adopts to achieve these goals: a kind of cable duct intelligent management system, it comprises environment harvester, data analysis control device, drainage arrangement, heating arrangement, cable duct opening device and master controller in Weather information harvester, cable duct, described drainage arrangement, electric heater unit and cable duct opening device all are connected with the data analysis control device side by side, and described Weather information harvester all is connected with the data analysis control device side by side with the interior environment harvester of cable duct.
Described Weather information harvester comprises optical sensor, rain sensor and wind power collecting device, and in described cable duct, the environment harvester comprises temperature sensor, humidity sensor and level sensor.
Described data analysis control device comprises data processing equipment and data analysis set-up, and described data processing equipment is data switching exchane, and described data analysis set-up is the computer data analyzer.
Described master controller comprises alarm and display.
Described cable duct opening device is the cable channel cover plate opening device.
Described drainage arrangement is unwatering pump.
Described heating arrangement comprises the warm lamp of electric heater, exhaust blower and electricity, and described electric heater is arranged on below the cable duct sidewall, on described electric heater, bucker is set, and the warm lamp of described electricity is arranged on above the cable duct sidewall, and described exhaust blower is arranged in cable duct.
The present invention passes through the sensor Information Monitoring by the cable duct intelligent management system is set with cable duct ventilation, dehumidifying, draining, carries out data analysis by data analysis set-up, provides information indicating by controller to the staff; The Weather information harvester gathers illumination, rainfall and the wind behaviour of the external environment of cable duct, and the information exchange that gathers is crossed wire transmission to data analysis set-up; In cable duct, the environment harvester gathers and the information exchange that gathers is crossed wire transmission to data analysis set-up temperature, humidity and the water level of cable duct, by data analysis set-up, environment in Weather information and cable duct is compared, when in the fine ditch of weather during high humidity, send instruction for the cable channel cover plate opening device, automatically open cable channel cover plate and advance to ventilate, at this moment autoshutdown when humidity, illumination, wind-force, rainfall have a condition not satisfy; High humidity in cable duct when weather conditions are bad, according to the humidity of cable duct water level inside and setting, adopt corresponding type of heating and opens exhaust blower; Or open simultaneously vent flap when weather conditions are good, and when not satisfying, condition closes vent flap, and heating arrangement works on to humidity and satisfies condition; When in ditch, ponding being arranged and when not satisfying the cable duct unlocking condition, automatically start suction pump, when water level is down to corresponding condition, turn on the warm lamp of exhaust blower and electric heater or electricity; By data analysis set-up, the operating condition of environmental aspect, external environment condition and device in whole cable duct is sent to master controller; Can remind the staff by alarm when breaking down, make the staff can find out the position of fault on display, in time process, guarantee the stable operation of whole system; The present invention is simple in structure, intelligent high, easy and simple to handle, has improved work efficiency, has brought into play to greatest extent its practical value under equal resources supplIes, is worthy of promotion and application.
Description of drawings
The invention will be further described below in conjunction with accompanying drawing:
Fig. 1 is structural representation of the present invention.
Embodiment
As shown in Figure 1: the invention discloses a kind of cable duct intelligent management system, it comprises environment harvester 7, data analysis control device 6, drainage arrangement 1, heating arrangement 2, cable duct opening device 3 and master controller 4 in Weather information harvester 5, cable duct, described drainage arrangement 1, electric heater unit 2 and cable duct opening device 3 all are connected with data analysis control device 6 side by side, and described Weather information harvester 5 all is connected with data analysis control device 6 side by side with the interior environment harvester 7 of cable duct.
Described Weather information harvester 5 comprises optical sensor, rain sensor and wind power collecting device, and in described cable duct, environment harvester 7 comprises temperature sensor, humidity sensor and level sensor.
Described data analysis control device 6 comprises data processing equipment and data analysis set-up, described data processing equipment is changed the information of being collected and is compressed by data switching exchane and then passes to data analysis set-up, described data analysis set-up is the computer data analyzer, and corresponding feedback is analyzed and made to the information of data switching exchane transmission.
Described master controller comprises alarm and display.
Described cable duct opening device 3 is the cable channel cover plate opening device.
Described drainage arrangement 1 is unwatering pump.
Described heating arrangement 2 comprises the warm lamp of electric heater, exhaust blower and electricity, and described electric heater is arranged on below the cable duct sidewall, on described electric heater, bucker is set, and the warm lamp of described electricity is arranged on above the cable duct sidewall, and described exhaust blower is arranged in cable duct.
The present invention passes through the sensor Information Monitoring by the cable duct intelligent management system is set with cable duct ventilation, dehumidifying, draining, carries out data analysis by data analysis set-up, provides information indicating by controller to the staff; The Weather information harvester gathers illumination, rainfall and the wind behaviour of the external environment of cable duct, and the information exchange that gathers is crossed wire transmission to data analysis set-up; In cable duct, the environment harvester gathers and the information exchange that gathers is crossed wire transmission to data analysis set-up temperature, humidity and the water level of cable duct, by data analysis set-up, environment in Weather information and cable duct is compared, when in the fine ditch of weather during high humidity, send instruction for the cable channel cover plate opening device, automatically open cable channel cover plate and advance to ventilate, at this moment autoshutdown when humidity, illumination, wind-force, rainfall have a condition not satisfy; High humidity in cable duct when weather conditions are bad, according to the humidity of cable duct water level inside and setting, adopt corresponding type of heating and opens exhaust blower; Or open simultaneously vent flap when weather conditions are good, and when not satisfying, condition closes vent flap, and heating arrangement works on to humidity and satisfies condition; When in ditch, ponding being arranged and when not satisfying the cable duct unlocking condition, automatically start suction pump, when water level is down to corresponding condition, turn on the warm lamp of exhaust blower and electric heater or electricity; By data analysis set-up, the operating condition of environmental aspect, external environment condition and device in whole cable duct is sent to master controller.
Data analysis set-up is analyzed the information that gathers, and controls corresponding device operation according to feedack, comes the operation conditions of management cable ditch, and following table is data analysis set-up to the condition of making a response and the unlatching situation of sensor information:
Annotate: 0 for not differentiating, and 1 be necessary condition, and 2 is the reference conditions condition of differentiation 2 (under satisfied 1 all conditions)
Can find out the condition of the required unlatching of corresponding intrument by upper table, the necessary data that above data need when being single the unlatching, can take appropriate measures voluntarily according to sensor information, install accordingly when satisfying corresponding conditions, can move voluntarily, can remind the staff by alarm simultaneously when breaking down, make the staff can find out the position of fault on display, in time process, guarantee the stable operation of whole system; The present invention is simple in structure, intelligent high, easy and simple to handle, has improved work efficiency, has brought into play to greatest extent its practical value under equal resources supplIes, is worthy of promotion and application.
Claims (7)
1. cable duct intelligent management system, it is characterized in that: it comprises environment harvester, data analysis control device, drainage arrangement, heating arrangement, cable duct opening device and master controller in Weather information harvester, cable duct, described drainage arrangement, electric heater unit and cable duct opening device all are connected with the data analysis control device side by side, and described Weather information harvester all is connected with the data analysis control device side by side with the interior environment harvester of cable duct.
2. cable duct intelligent management system according to claim 1, it is characterized in that: described Weather information harvester comprises optical sensor, rain sensor and wind power collecting device, and in described cable duct, the environment harvester comprises temperature sensor, humidity sensor and level sensor.
3. cable duct intelligent management system according to claim 1, it is characterized in that: described data analysis control device comprises data processing equipment and data analysis set-up, described data processing equipment is data switching exchane, and described data analysis set-up is the computer data analyzer.
4. cable duct intelligent management system according to claim 1, it is characterized in that: described master controller comprises alarm and display.
5. cable duct intelligent management system according to claim 1, it is characterized in that: described cable duct opening device is the cable channel cover plate opening device.
6. cable duct intelligent management system according to claim 1, it is characterized in that: described drainage arrangement is unwatering pump.
7. cable duct intelligent management system according to claim 1, it is characterized in that: described heating arrangement comprises the warm lamp of electric heater, exhaust blower and electricity, described electric heater is arranged on below the cable duct sidewall, on described electric heater, bucker is set, the warm lamp of described electricity is arranged on above the cable duct sidewall, and described exhaust blower is arranged in cable duct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100802648A CN103163921A (en) | 2013-03-14 | 2013-03-14 | Cable trench intelligent management system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100802648A CN103163921A (en) | 2013-03-14 | 2013-03-14 | Cable trench intelligent management system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103163921A true CN103163921A (en) | 2013-06-19 |
Family
ID=48587092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013100802648A Pending CN103163921A (en) | 2013-03-14 | 2013-03-14 | Cable trench intelligent management system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103163921A (en) |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103558886A (en) * | 2013-11-12 | 2014-02-05 | 国家电网公司 | Intelligent damp expelling system and damp expelling method thereof |
| CN103986107A (en) * | 2014-05-23 | 2014-08-13 | 国家电网公司 | Intelligent control system for transformer substation cable trench see-through safeguard device |
| CN104007731A (en) * | 2014-06-03 | 2014-08-27 | 国家电网公司 | Intelligent control system for transformer substation facility |
| CN104503385A (en) * | 2014-11-27 | 2015-04-08 | 国网河南省电力公司平顶山供电公司 | Unattended transformer station cable trench remote monitoring system |
| CN104820445A (en) * | 2015-04-07 | 2015-08-05 | 国家电网公司 | Cable trench water level monitoring alarm system |
| CN105155657A (en) * | 2015-09-29 | 2015-12-16 | 国网浙江临海市供电公司 | Drainage system |
| CN105696689A (en) * | 2014-11-27 | 2016-06-22 | 国网河南省电力公司南阳供电公司 | Automatic drainage system for cable trench of transformer substation |
| CN105839668A (en) * | 2016-06-08 | 2016-08-10 | 国网辽宁省电力有限公司抚顺供电公司 | Underground structure environment management and control system |
| CN106020061A (en) * | 2016-07-22 | 2016-10-12 | 国网河南禹州市供电公司 | Substation cable trench monitoring and alarming system |
| CN106229932A (en) * | 2016-09-23 | 2016-12-14 | 国网江苏省电力公司南京供电公司 | A kind of power distribution room cable channel cover plate |
| CN107479599A (en) * | 2017-08-25 | 2017-12-15 | 国家电网公司 | Cable duct water discharge control method and system |
| CN108710394A (en) * | 2018-05-23 | 2018-10-26 | 国网四川省电力公司乐山供电公司 | A kind of substation control system and method |
| CN109491427A (en) * | 2018-11-06 | 2019-03-19 | 山西丰信电力工程有限公司 | A kind of cable duct environmental monitoring system |
| CN110738289A (en) * | 2019-11-04 | 2020-01-31 | 新疆信息产业有限责任公司 | Multi-dimensional linkage comprehensive studying and judging device for electric power operation standardization and using method thereof |
| CN111900653A (en) * | 2020-08-06 | 2020-11-06 | 国网山东省电力公司莱芜供电公司 | Automatic ventilation and dust prevention device and method for transformer substation cable interlayer |
| CN114069536A (en) * | 2021-11-11 | 2022-02-18 | 国网新疆电力有限公司乌鲁木齐供电公司 | Intelligent damp-dispelling ventilation system and method for outdoor cable trench of transformer substation |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201051152Y (en) * | 2007-01-29 | 2008-04-23 | 深圳先进技术研究院 | A weather comfort intelligent monitoring device |
| CN101470694A (en) * | 2007-12-28 | 2009-07-01 | 英业达股份有限公司 | Apparatus and method for suggesting clothes-dressing by mirror |
| CN201972515U (en) * | 2011-01-20 | 2011-09-14 | 重庆交通大学 | Wind, humidity and light control automatic window with intelligent closing and opening |
| CN202237733U (en) * | 2011-06-29 | 2012-05-30 | 山东亿玛信诺电气有限公司 | Electric cabinet dehumidifying device |
| CN202331231U (en) * | 2011-11-23 | 2012-07-11 | 山东泰莱电气有限公司 | Automatic dehumidification device of box-type transformer substation |
| CN202424083U (en) * | 2011-12-09 | 2012-09-05 | 河南省电力公司濮阳供电公司 | Double-layer cable channel cover plate |
| CN202433053U (en) * | 2011-12-13 | 2012-09-12 | 河南省电力公司南阳供电公司 | Automatic drainage alarm device of cable trenches |
| CN102778008A (en) * | 2012-07-11 | 2012-11-14 | 四川省电力公司绵阳电业局 | Forced ventilating system of cable chute |
| CN202550479U (en) * | 2012-03-08 | 2012-11-21 | 郭源生 | Humidity monitoring protection apparatus of switch reluctance machine controller |
-
2013
- 2013-03-14 CN CN2013100802648A patent/CN103163921A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201051152Y (en) * | 2007-01-29 | 2008-04-23 | 深圳先进技术研究院 | A weather comfort intelligent monitoring device |
| CN101470694A (en) * | 2007-12-28 | 2009-07-01 | 英业达股份有限公司 | Apparatus and method for suggesting clothes-dressing by mirror |
| CN201972515U (en) * | 2011-01-20 | 2011-09-14 | 重庆交通大学 | Wind, humidity and light control automatic window with intelligent closing and opening |
| CN202237733U (en) * | 2011-06-29 | 2012-05-30 | 山东亿玛信诺电气有限公司 | Electric cabinet dehumidifying device |
| CN202331231U (en) * | 2011-11-23 | 2012-07-11 | 山东泰莱电气有限公司 | Automatic dehumidification device of box-type transformer substation |
| CN202424083U (en) * | 2011-12-09 | 2012-09-05 | 河南省电力公司濮阳供电公司 | Double-layer cable channel cover plate |
| CN202433053U (en) * | 2011-12-13 | 2012-09-12 | 河南省电力公司南阳供电公司 | Automatic drainage alarm device of cable trenches |
| CN202550479U (en) * | 2012-03-08 | 2012-11-21 | 郭源生 | Humidity monitoring protection apparatus of switch reluctance machine controller |
| CN102778008A (en) * | 2012-07-11 | 2012-11-14 | 四川省电力公司绵阳电业局 | Forced ventilating system of cable chute |
Non-Patent Citations (1)
| Title |
|---|
| TERUIER: ""智能型电缆沟排风除潮装置"", 《HTTP://WENKU.BAIDU.COM/LINK?URL=DGQ-C2ASMI2A4UPCYMPHINFAYF65YNUUVC9BMTIDLGOSRLKTKZNOZ1LKF9CU60D4N6NUCPGFI_TTK3D4Z1KMQGQMFXNL3JWISN3NVE93ZGW》 * |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103558886A (en) * | 2013-11-12 | 2014-02-05 | 国家电网公司 | Intelligent damp expelling system and damp expelling method thereof |
| CN103986107A (en) * | 2014-05-23 | 2014-08-13 | 国家电网公司 | Intelligent control system for transformer substation cable trench see-through safeguard device |
| CN104007731A (en) * | 2014-06-03 | 2014-08-27 | 国家电网公司 | Intelligent control system for transformer substation facility |
| CN104503385A (en) * | 2014-11-27 | 2015-04-08 | 国网河南省电力公司平顶山供电公司 | Unattended transformer station cable trench remote monitoring system |
| CN105696689A (en) * | 2014-11-27 | 2016-06-22 | 国网河南省电力公司南阳供电公司 | Automatic drainage system for cable trench of transformer substation |
| CN104820445A (en) * | 2015-04-07 | 2015-08-05 | 国家电网公司 | Cable trench water level monitoring alarm system |
| CN105155657A (en) * | 2015-09-29 | 2015-12-16 | 国网浙江临海市供电公司 | Drainage system |
| CN105839668A (en) * | 2016-06-08 | 2016-08-10 | 国网辽宁省电力有限公司抚顺供电公司 | Underground structure environment management and control system |
| CN106020061A (en) * | 2016-07-22 | 2016-10-12 | 国网河南禹州市供电公司 | Substation cable trench monitoring and alarming system |
| CN106229932A (en) * | 2016-09-23 | 2016-12-14 | 国网江苏省电力公司南京供电公司 | A kind of power distribution room cable channel cover plate |
| CN107479599A (en) * | 2017-08-25 | 2017-12-15 | 国家电网公司 | Cable duct water discharge control method and system |
| CN108710394A (en) * | 2018-05-23 | 2018-10-26 | 国网四川省电力公司乐山供电公司 | A kind of substation control system and method |
| CN109491427A (en) * | 2018-11-06 | 2019-03-19 | 山西丰信电力工程有限公司 | A kind of cable duct environmental monitoring system |
| CN110738289A (en) * | 2019-11-04 | 2020-01-31 | 新疆信息产业有限责任公司 | Multi-dimensional linkage comprehensive studying and judging device for electric power operation standardization and using method thereof |
| CN111900653A (en) * | 2020-08-06 | 2020-11-06 | 国网山东省电力公司莱芜供电公司 | Automatic ventilation and dust prevention device and method for transformer substation cable interlayer |
| CN111900653B (en) * | 2020-08-06 | 2022-04-29 | 国网山东省电力公司莱芜供电公司 | Automatic ventilation and dust prevention device and method for transformer substation cable interlayer |
| CN114069536A (en) * | 2021-11-11 | 2022-02-18 | 国网新疆电力有限公司乌鲁木齐供电公司 | Intelligent damp-dispelling ventilation system and method for outdoor cable trench of transformer substation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103163921A (en) | Cable trench intelligent management system | |
| CN105610072A (en) | Moisture-proof dehumidification device for high-voltage chamber of substation | |
| CN205489180U (en) | Automatic dehydrating unit in transformer substation high -voltage switch room | |
| CN205724429U (en) | A kind of high-tension switch cabinet with dehumidification function | |
| CN104078857A (en) | Moisture-proof condensed water guiding device | |
| CN108134327A (en) | It is a kind of air-cooled except condensation system and its except condensation method | |
| CN112947652A (en) | GIS overhauls and removes dustless workshop | |
| CN205212285U (en) | Energy -concerving and environment -protective type block terminal | |
| CN210669225U (en) | Monitoring device for ring main unit | |
| CN202771290U (en) | Automatic control device of composite insulator water boiling test equipment | |
| CN210094408U (en) | Intelligent young silkworm co-breeding room | |
| CN207994443U (en) | Ring main unit hybrid power dehumidification device | |
| CN103363628B (en) | Portable intelligent power distribution tube well maintenance ventilation device | |
| CN208637891U (en) | A kind of intelligent AC low-voltage distribution cabinet | |
| CN207853399U (en) | A kind of intelligent type low-voltage bus duct | |
| CN207884158U (en) | A kind of dehumidification system for electric cabinet | |
| CN109004744B (en) | Intelligent management and control system for monitoring state of distributed substation | |
| CN209786518U (en) | HGIS moisture-proof control cubicle | |
| CN206422624U (en) | A kind of motor bucker | |
| CN112504774A (en) | Wireless remote control portable greenhouse gas bottle sampling method and sampling device thereof | |
| CN216052783U (en) | GIS overhauls and removes dustless workshop | |
| CN113625077B (en) | Corrosion-resistant power grid transmission detection equipment and detection method thereof | |
| CN205690590U (en) | Intelligent leakage hydrogen automatic air interchanger | |
| CN214543256U (en) | Cubical switchboard intelligence dehydrating unit | |
| CN220732050U (en) | Intelligent condensation dehumidification system for transformer busbar channel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130619 |
|
| RJ01 | Rejection of invention patent application after publication |