CN107680332A - One kind prevents high-tension switch cabinet maloperation alarming device - Google Patents
One kind prevents high-tension switch cabinet maloperation alarming device Download PDFInfo
- Publication number
- CN107680332A CN107680332A CN201710906041.0A CN201710906041A CN107680332A CN 107680332 A CN107680332 A CN 107680332A CN 201710906041 A CN201710906041 A CN 201710906041A CN 107680332 A CN107680332 A CN 107680332A
- Authority
- CN
- China
- Prior art keywords
- switch
- contact
- change
- auxiliary reclay
- phase line
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/20—Bus-bar or other wiring layouts, e.g. in cubicles, in switchyards
Abstract
The invention discloses one kind to prevent high-tension switch cabinet maloperation alarming device, belongs to electrical equipment security technology area.The present invention includes fuse, auxiliary reclay, change-over switch, alarm window, infrared sensing switch, audible-visual annunciator, control power supply phase line, control mains neutral line and terminals, change-over switch, alarm window, infrared sensing switch and audible-visual annunciator and is arranged on device panel；Device input switch amount contact is quoted from the main circuit breaker auxiliary contact and switch cabinet handcart testing position contact closed in switch cubicle；Auxiliary reclay coil control circuit is electrically connected in series change-over switch；Auxiliary reclay output contact circuit in series electrically connects alarm window；Infrared sensing switch output contact circuit in series electrically connects acoustic-optic alarm；The present invention is fixedly mounted on high-voltage switch gear, the alarm window display switch inspecting state carried by device, and is aided with alarm and speech prompting system and is given the prompting of vision and the sense of hearing, is played active warning function, is avoided maloperation.
Description
Technical field
The present invention relates to electrical equipment security technology area, prevents high-tension switch cabinet from grasping by mistake more specifically to one kind
Make alarming device.
Background technology
In power supply-distribution system, the transmission line circuit of 10kV and system above high-tension switch cabinet is substantially transformer or high pressure
The equipment such as motor, and electrical equipment and high-voltage board are not arranged on same place, when equipment interruption maintenance, conventional does
Method is suspension " overhaul of the equipments, No switching on " direction board on switch cubicle, but because certain reason may cause direction board to fall
Or the direction board that operating personnel not to be noted hang, so as to cause switch cubicle false switching, cause equipment and personal injury.
The content of the invention
1st, to solve the problems, such as
The problem of existing for prior art and deficiency, the invention provides one kind to prevent high-tension switch cabinet maloperation from warning
Device, the device are fixedly mounted on high-voltage switch gear, the alarm window display switch inspecting state carried by device, and are aided with report
Alert and speech prompting system gives the prompting of vision and the sense of hearing, plays active warning function, avoids maloperation.
2nd, technical scheme
To reach above-mentioned purpose, technical scheme provided by the invention is：
One kind of the present invention prevents high-tension switch cabinet maloperation alarming device, including fuse, auxiliary reclay, conversion are opened
Pass, alarm window, infrared sensing switch, audible-visual annunciator, control power supply phase line, control mains neutral line and terminals, it is described
Change-over switch, alarm window, infrared sensing switch and audible-visual annunciator are arranged on device panel；It is described auxiliary reclay, molten
Disconnected device is arranged on inside device；Described binding post is arranged in the back side of device；Described control power supply phase line and device electricity
The phase line electrical connection in source；Described control mains neutral line electrically connects with the neutral conductor of installation's power source；Described device input is opened
Contact is measured quoted from the main circuit breaker auxiliary contact and switch cabinet handcart testing position contact closed in switch cubicle in pass；Described centre
Relay coil control loop is electrically connected in series change-over switch；Described auxiliary reclay output contact circuit in series electrical connection light
Word board；Described infrared sensing switch output contact circuit in series electrical connection acoustic-optic alarm；
Two pairs of contact one end of described change-over switch are connected with installation's power source phase line, and the change-over switch other end with drawing away outside
Pass amount contact is connected；The described outer contact other end that draws electrically connects auxiliary reclay；The output of described auxiliary reclay is normal
Open contact one end arrangements of electric connection power supply phase line, other end electrical connection alarm window；Another pair of contact one of described change-over switch
End is connected with installation's power source phase line, and the other end of change-over switch electrically connects with infrared sensing switch coil；Described sound and light alarm
The output contact of one end electrical connection infrared sensing switch of device；The neutrality of the other end electric connection of power supply of described audible-visual annunciator
Line.
As a further improvement on the present invention, it is provided with fuse in described control power supply phase line.
As a further improvement on the present invention, described maintenance alarming device is fixedly installed on high-tension switch cabinet.
As a further improvement on the present invention, described maintenance alarming device outlet can send computer background to show and close
Lock closing circuit.
3rd, beneficial effect
Compared to prior art, beneficial effects of the present invention are：
(1) one kind of the invention prevents high-tension switch cabinet maloperation alarming device, and the invention device can be prevented effectively
Computer background false switching during overhaul of the equipments, equipment and personal safety can be effectively ensured.
(2) one kind of the invention prevents high-tension switch cabinet maloperation alarming device, and the invention device is simple in construction, is easy to pacify
Dress and maintenance, reduce amiss possibility.
Brief description of the drawings
Fig. 1 is the control principle schematic diagram of the present invention；
Fig. 2 is the outline structural diagram of the present invention.
In figure：1st, fuse；2nd, auxiliary reclay；3rd, change-over switch；4th, alarm window；5th, infrared sensing switch；6th, acousto-optic
Alarm；7th, power supply phase line is controlled；8th, mains neutral line is controlled；9th, switch cabinet handcart testing position contact；10th, breaker aids in
Contact.
Embodiment
The present invention is further described below with reference to specific embodiments and the drawings：
Embodiment 1
As shown in Figure 1-2, one kind of the present embodiment prevents high-tension switch cabinet maloperation alarming device, including fuse 1, in
Between relay 2, change-over switch 3, alarm window 4, infrared sensing switch 5, audible-visual annunciator 6, control power supply phase line 7, control power supply
The neutral conductor 8 and terminals, change-over switch 3, alarm window 4, infrared sensing switch 5 and audible-visual annunciator 6 are arranged on device panel；
Auxiliary reclay 2, fuse 1 are arranged on inside device, and binding post is arranged in the back side of device；Above-mentioned control power supply phase line
7 electrically connect with the phase line of installation's power source, and control mains neutral line 8 electrically connects with the neutral conductor of installation's power source；Above-mentioned device is defeated
Enter switching value contact quoted from the main circuit breaker auxiliary contact 10 and switch cabinet handcart testing position contact 9 closed in switch cubicle；Institute
The coil control circuit of auxiliary reclay 2 stated is electrically connected in series change-over switch 3, the output contact circuit in series of auxiliary reclay 2 electricity
Connect alarm window 4, the output contact circuit in series of infrared sensing switch 5 electrical connection acoustic-optic alarm 6.
One kind of the present embodiment prevents high-tension switch cabinet maloperation alarming device, two pairs of contact one end of change-over switch 3 with
Installation's power source phase line connects, and the other end of change-over switch 3 is connected with drawing switching value contact outside, draws outside in the electrical connection of the contact other end
Between relay 2, output normal opened contact one end arrangements of electric connection power supply phase line of above-mentioned auxiliary reclay 2, the other end electrical connection
Alarm window 4；Another pair of contact one end of described change-over switch 3 is connected with installation's power source phase line, the other end of change-over switch 3 with
The coil of infrared sensing switch 5 electrically connects, the output contact of one end electrical connection infrared sensing switch 5 of audible-visual annunciator 6, acousto-optic report
The neutral conductor of the other end electric connection of power supply of alert device 6.Fuse 1, maintenance warning dress are provided with above-mentioned control power supply phase line 7
Put and be fixedly installed on high-tension switch cabinet, can avoid falling, cause maloperation, the outlet of maintenance alarming device can send computer
Backstage display and locking closing circuit, avoid false switching.
The operating procedure of the device is as follows：S1：When high-tension apparatus overhauls, breaker of switch cabinet separating brake, breaker opened point
Closure, in switch cabinet handcart testing position 9, now, when change-over switch 3 is in maintenance position, audible-visual annunciator 6 opens automatically
It is dynamic；S2：When equipment orderly closedown, rather than during inspecting state, change-over switch 3 is in orderly closedown state, and maintenance warning device is not
Start；S3：Normal device can not hang interim " interruption maintenance, No switching on " direction board when overhauling, can pass through the smooth word
Board 4 is shown " overhaul of the equipments No switching on "；S4：Only when someone is close to inspection switch cabinet, described infrared sensing switch 5 is dynamic
Make, audible-visual annunciator 6 starts, and plays reminding effect., can be by turning when maintainer is engaged in service work in switch gear room
Change the releasing sound and light alarm of switch 3 and only retain alarm window 4 and show " the static combined floodgate of overhaul of the equipments ".
One kind of the present embodiment prevents high-tension switch cabinet maloperation alarming device, and the first duplexure change-over switch 3 switchs
Contact SA-1 and SA-7 electrically connects with power supply phase line, and change-over switch 3 contact SA-2 and SA-8 is auxiliary with high-voltage board inner breaker respectively
Adjuvant grafting point 10 and switch cabinet handcart testing position contact 9 are connected, breaker auxiliary contact 10 and switch cabinet handcart testing position
Another termination coil of auxiliary reclay 2 of contact 9, the coil other end electric connection of power supply neutral conductor of auxiliary reclay 2.Control loop
Two duplexures are followed successively by auxiliary reclay 2 and alarm window 4 from control power supply phase line 7 to control mains neutral line 8.Control loop
3rd duplexure is followed successively by contact SA-3 and the SA-4 contact of change-over switch 3 from control power supply phase line 7 to control mains neutral line 8
And infrared sensing switch 5.The duplexure of control loop the 4th is followed successively by red from control power supply phase line to control mains neutral line
The outer auxiliary contact of inductive switch 5 and audible-visual annunciator 6.The output contact normally closed contact of auxiliary reclay 2 breaks for latch switch cabinet
Road device closing circuit, the output contact normal opened contact of auxiliary reclay 2 is shown for computer system state or closing circuit logic
Locking.Audible-visual annunciator therein can be arranged to commonly alarm buzz and voice message sound according to user preferences.In order to protect
Control loop is protected, fuse 1 is provided with before being located at all branch roads in the phase line being connected with control loop.
When high-tension switch cabinet transmission line circuit institute band electrically needs interruption maintenance, breaker of switch cabinet separating brake, normally closed is disconnected
Road device auxiliary contact 10 closes, and positioned at switch cabinet handcart testing position contact 9, the auxiliary contact of handcart testing position contact 9 closes,
Now high-tension switch cabinet maloperation alarming device change-over switch 3 is prevented to be placed in maintenance position, SA-7 and SA- by provided by the invention
8 contacts turn on, auxiliary reclay 2 it is electric, auxiliary reclay 2 aid in normal opened contact closure, alarm window 4 it is electric, display " equipment examine
Repair No switching on "；The normally closed point of auxiliary reclay 2 disconnects simultaneously, and locking closing circuit, breaker can not close a floodgate, to computer
The opened point of auxiliary reclay 2 conducting of platform, computer system shows that the switch cubicle is in inspecting state, meanwhile, change-over switch 3 in
During " maintenance " position, contact SA-3 and SA-4 conducting, infrared sensing switch 5 must be electric, now if having sensed that personnel are close, then
Output contact is turned on, and audible-visual annunciator 6 is opened, and while flashing and sends voice message, warning related personnel should not
Maloperation.If maintainer needs inspection switch cabinet in itself or needs height to match somebody with somebody office work, change-over switch 3 can be placed in
" releasing sound and light alarm " position, now SA-1 and SA-2 conductings, the normally display " overhaul of the equipments No switching on " of alarm window 4, simultaneously
The normally closed point of auxiliary reclay 4 disconnects, and locking closing circuit, breaker can not close a floodgate, and the auxiliary reclay 2 to computer background is normal
Conducting is prescribed, computer system shows that the switch cubicle is in inspecting state, but because SA-3 and SA-4 disconnects, audible-visual annunciator 6
It is not turned on.When switch cubicle normally has a power failure, change-over switch 3 is placed in " orderly closedown " position, prevents high-tension switch cabinet maloperation
Alarming device is out of service.
One kind of the present embodiment prevents high-tension switch cabinet maloperation alarming device, and the device is fixedly mounted on high-voltage switch gear
On, the alarm window display switch inspecting state that is carried by device, and be aided with alarm and speech prompting system give vision and
The prompting of the sense of hearing, active warning function is served, avoids maloperation.
Schematically the present invention and embodiments thereof are described above, this describes no restricted, institute in accompanying drawing
What is shown is also one of embodiments of the present invention, and actual structure is not limited thereto.So if common skill of this area
Art personnel are enlightened by it, without departing from the spirit of the invention, without designing and the technical scheme for creativeness
Similar frame mode and embodiment, protection scope of the present invention all should be belonged to.
Claims (4)
1. one kind prevents high-tension switch cabinet maloperation alarming device, it is characterised in that：Including fuse (1), auxiliary reclay
(2), change-over switch (3), alarm window (4), infrared sensing switch (5), audible-visual annunciator (6), control power supply phase line (7), control
Mains neutral line (8) and terminals, described change-over switch (3), alarm window (4), infrared sensing switch (5) and audible-visual annunciator
(6) it is arranged on device panel；Described auxiliary reclay (2), fuse (1) are arranged on inside device；Described terminals
Son is arranged in the back side of device；Described control power supply phase line (7) electrically connects with the phase line of installation's power source；Described control power supply
The neutral conductor (8) electrically connects with the neutral conductor of installation's power source；Described device input switch amount contact in switch cubicle quoted from closing
Main circuit breaker auxiliary contact (10) and switch cabinet handcart testing position contact (9)；Described auxiliary reclay (2) coil controls back
Road is electrically connected in series change-over switch (3)；Described auxiliary reclay (2) output contact circuit in series electrical connection alarm window (4)；Institute
Infrared sensing switch (5) the output contact circuit in series electrical connection acoustic-optic alarm (6) stated；
Two pairs of contact one end of described change-over switch (3) are connected with installation's power source phase line, and change-over switch (3) other end with drawing outside
Switching value contact is connected；The described outer contact other end that draws electrically connects auxiliary reclay (2)；Described auxiliary reclay (2)
Output normal opened contact one end arrangements of electric connection power supply phase line, the other end electrical connection alarm window (4)；Described change-over switch (3)
Another pair of contact one end be connected with installation's power source phase line, the other end of change-over switch (3) and infrared sensing switch (5) coil electricity
Connection；The output contact of one end electrical connection infrared sensing switch (5) of described audible-visual annunciator (6)；Described sound and light alarm
The neutral conductor of the other end electric connection of power supply of device (6).
2. one kind according to claim 1 prevents high-tension switch cabinet maloperation alarming device, it is characterised in that：Described control
Fuse (1) is provided with power supply phase line (7) processed.
3. one kind according to claim 1 prevents high-tension switch cabinet maloperation alarming device, it is characterised in that：Described inspection
Alarming device is repaiied to be fixedly installed on high-tension switch cabinet.
4. one kind according to claim 1 prevents high-tension switch cabinet maloperation alarming device, it is characterised in that：Described inspection
Repairing alarming device outlet can send computer background to show and locking closing circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710906041.0A CN107680332B (en) | 2017-09-29 | 2017-09-29 | Warning device for preventing misoperation of high-voltage switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710906041.0A CN107680332B (en) | 2017-09-29 | 2017-09-29 | Warning device for preventing misoperation of high-voltage switch cabinet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107680332A true CN107680332A (en) | 2018-02-09 |
| CN107680332B CN107680332B (en) | 2020-05-08 |
Family
ID=61137707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710906041.0A Active CN107680332B (en) | 2017-09-29 | 2017-09-29 | Warning device for preventing misoperation of high-voltage switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107680332B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109149516A (en) * | 2018-10-23 | 2019-01-04 | 烟台东方威思顿电气有限公司 | A kind of high-voltage power supply security protection system |
| CN111754734A (en) * | 2020-05-22 | 2020-10-09 | 金鑫 | Intelligent alarm device for electric switch |
| CN113436410A (en) * | 2021-06-02 | 2021-09-24 | 内蒙古蒙电华能热电股份有限公司乌海发电厂 | False opening alarm device of high tension switchgear backplate |
Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87215323U (en) * | 1987-11-10 | 1988-08-10 | 国营哈尔滨第一机器制造厂 | Automatic alarm high-tension switch gear cabinet by misoperation |
| CN2349708Y (en) * | 1998-10-30 | 1999-11-17 | 王德发 | Error operation proof device for electric switchcabinet |
| CN2731602Y (en) * | 2004-07-30 | 2005-10-05 | 王伯典 | Speech indicating security tag for power system |
| CN2836283Y (en) * | 2005-07-14 | 2006-11-08 | 杭州电器开关有限公司 | Armored central enclosed AC metal switch apparatus |
| CN201122807Y (en) * | 2007-12-07 | 2008-09-24 | 安徽鑫龙电器股份有限公司 | Switch cabinet status indicator |
| CN101692534A (en) * | 2009-06-24 | 2010-04-07 | 张敬敏 | Blocking against misoperation, alarming and protecting device of high-voltage switch cabinet |
| CN202276193U (en) * | 2011-10-13 | 2012-06-13 | 西安众恒科技有限公司 | Intelligent switch cabinet integrating intelligent operation and control and microcomputer protection |
| CN202888633U (en) * | 2012-09-29 | 2013-04-17 | 福建通用恒泰电气设备有限公司 | Comprehensive distribution box capable of preventing misoperation |
| CN203276485U (en) * | 2013-05-30 | 2013-11-06 | 江苏徐塘发电有限责任公司 | Anti-misoperation alarm device of high voltage switch cabinet |
| CN203351999U (en) * | 2013-07-08 | 2013-12-18 | 合肥虹光开关厂 | Anti-error type high tension switchgear |
| CN103872610A (en) * | 2012-12-11 | 2014-06-18 | 烟台史密得机电设备制造有限公司 | Metal armored intermediate withdrawable switch cabinet |
| CN204304453U (en) * | 2014-12-28 | 2015-04-29 | 国网山东省电力公司日照供电公司 | A kind of interlock protection structure of water-cooling type SVG equipment |
| CN204706818U (en) * | 2015-06-18 | 2015-10-14 | 国网安徽省电力公司培训中心 | A kind of high-tension switch cabinet switching-off device |
| CN205141497U (en) * | 2015-11-17 | 2016-04-06 | 江苏省水利勘测设计研究院有限公司 | Commutation isolated wheelbarrow |
| JP2016157588A (en) * | 2015-02-24 | 2016-09-01 | 株式会社ノーリツ | Fuel battery power generation system |
| CN205863677U (en) * | 2016-07-08 | 2017-01-04 | 国家电网公司 | High-tension switch cabinet on-line checking and display system |
| CN206331560U (en) * | 2016-12-29 | 2017-07-14 | 国网山东省电力公司日照供电公司 | Switch cabinet of converting station safety alarm device |
| CN107086667A (en) * | 2017-06-08 | 2017-08-22 | 国电大渡河流域水电开发有限公司 | A kind of outlet breaker closing circuit structure and its method of work |
-
2017
- 2017-09-29 CN CN201710906041.0A patent/CN107680332B/en active Active
Patent Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87215323U (en) * | 1987-11-10 | 1988-08-10 | 国营哈尔滨第一机器制造厂 | Automatic alarm high-tension switch gear cabinet by misoperation |
| CN2349708Y (en) * | 1998-10-30 | 1999-11-17 | 王德发 | Error operation proof device for electric switchcabinet |
| CN2731602Y (en) * | 2004-07-30 | 2005-10-05 | 王伯典 | Speech indicating security tag for power system |
| CN2836283Y (en) * | 2005-07-14 | 2006-11-08 | 杭州电器开关有限公司 | Armored central enclosed AC metal switch apparatus |
| CN201122807Y (en) * | 2007-12-07 | 2008-09-24 | 安徽鑫龙电器股份有限公司 | Switch cabinet status indicator |
| CN101692534A (en) * | 2009-06-24 | 2010-04-07 | 张敬敏 | Blocking against misoperation, alarming and protecting device of high-voltage switch cabinet |
| CN202276193U (en) * | 2011-10-13 | 2012-06-13 | 西安众恒科技有限公司 | Intelligent switch cabinet integrating intelligent operation and control and microcomputer protection |
| CN202888633U (en) * | 2012-09-29 | 2013-04-17 | 福建通用恒泰电气设备有限公司 | Comprehensive distribution box capable of preventing misoperation |
| CN103872610A (en) * | 2012-12-11 | 2014-06-18 | 烟台史密得机电设备制造有限公司 | Metal armored intermediate withdrawable switch cabinet |
| CN203276485U (en) * | 2013-05-30 | 2013-11-06 | 江苏徐塘发电有限责任公司 | Anti-misoperation alarm device of high voltage switch cabinet |
| CN203351999U (en) * | 2013-07-08 | 2013-12-18 | 合肥虹光开关厂 | Anti-error type high tension switchgear |
| CN204304453U (en) * | 2014-12-28 | 2015-04-29 | 国网山东省电力公司日照供电公司 | A kind of interlock protection structure of water-cooling type SVG equipment |
| JP2016157588A (en) * | 2015-02-24 | 2016-09-01 | 株式会社ノーリツ | Fuel battery power generation system |
| CN204706818U (en) * | 2015-06-18 | 2015-10-14 | 国网安徽省电力公司培训中心 | A kind of high-tension switch cabinet switching-off device |
| CN205141497U (en) * | 2015-11-17 | 2016-04-06 | 江苏省水利勘测设计研究院有限公司 | Commutation isolated wheelbarrow |
| CN205863677U (en) * | 2016-07-08 | 2017-01-04 | 国家电网公司 | High-tension switch cabinet on-line checking and display system |
| CN206331560U (en) * | 2016-12-29 | 2017-07-14 | 国网山东省电力公司日照供电公司 | Switch cabinet of converting station safety alarm device |
| CN107086667A (en) * | 2017-06-08 | 2017-08-22 | 国电大渡河流域水电开发有限公司 | A kind of outlet breaker closing circuit structure and its method of work |
Non-Patent Citations (2)
| Title |
|---|
| YU CHEN等: "research and design of high-voltage electronic power equipment monitor system based on wireless communication technology", 《POWER AND ENERGY ENGINEERING CONFERENCE》 * |
| 蒋丽娟: "10KV开关站设备与运行", 《中国优秀硕士学位论文全文数据工程科技Ⅱ辑》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109149516A (en) * | 2018-10-23 | 2019-01-04 | 烟台东方威思顿电气有限公司 | A kind of high-voltage power supply security protection system |
| CN109149516B (en) * | 2018-10-23 | 2024-03-08 | 烟台东方威思顿电气有限公司 | High-voltage source safety protection system |
| CN111754734A (en) * | 2020-05-22 | 2020-10-09 | 金鑫 | Intelligent alarm device for electric switch |
| CN113436410A (en) * | 2021-06-02 | 2021-09-24 | 内蒙古蒙电华能热电股份有限公司乌海发电厂 | False opening alarm device of high tension switchgear backplate |
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|---|---|
| CN107680332B (en) | 2020-05-08 |
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