CN111224330A - Anti-misoperation high-voltage switch cabinet - Google Patents
Anti-misoperation high-voltage switch cabinet Download PDFInfo
- Publication number
- CN111224330A CN111224330A CN202010041456.8A CN202010041456A CN111224330A CN 111224330 A CN111224330 A CN 111224330A CN 202010041456 A CN202010041456 A CN 202010041456A CN 111224330 A CN111224330 A CN 111224330A
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- CN
- China
- Prior art keywords
- cabinet door
- voltage switch
- side wall
- motor
- cabinet
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- 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.)
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Classifications
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- 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
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
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- 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
- G08B21/18—Status alarms
- G08B21/185—Electrical failure alarms
-
- 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
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
- H02B1/38—Hinged covers or doors
Abstract
The invention discloses an anti-misoperation high-voltage switch cabinet in the technical field of high-voltage switch cabinets, wherein a cabinet door of a cabinet body is locked by an electromagnetic lock, a control switch of the electromagnetic lock is arranged on a limiting block on the side wall of one surface of a rotating plate, a driven gear is meshed and connected with a driving gear arranged on the inner side wall of the cabinet door, the driving gear is fixedly connected with the output end of a first motor through a transmission shaft, the inner side wall of the cabinet door is provided with a leakage detector, a second motor is connected with a gear arranged in an inner cavity of a shell through a transmission shaft, the gear is meshed and connected with a movable rack vertically and movably arranged in the inner cavity of the shell, one end of a movable block is fixedly connected with the top surface of the cabinet door through an arc-shaped rod, and the inner side wall of the cabinet door is provided with a processor. The use effect is good.
Description
Technical Field
The invention relates to the technical field of high-voltage switch cabinets, in particular to an anti-misoperation high-voltage switch cabinet.
Background
The high-voltage switch cabinet is used for power generation, power transmission, power distribution, electric energy conversion and consumption of an electric power system and plays roles of on-off, control or protection and the like. The high-voltage switch cabinet is used as an electric appliance product with the voltage grade of 3.6 kV-550 kV, a high-voltage isolating switch, a grounding switch, a high-voltage load switch, a high-voltage automatic reclosing and sectionalizing device, a high-voltage operating mechanism, a high-voltage explosion-proof power distribution device, a high-voltage switch cabinet and the like.
High tension switchgear is in the use, when the unexpected condition appears sometimes, the condition of electric leakage may appear, thereby make the internal full current of cabinet, if the staff touches the cabinet body under the condition of unknown the cabinet and opens when cabinet door maloperation, dangerous condition may appear, secondly, when the staff overhauls the high tension switchgear circuit, if other staff do not know the condition, trade close a floodgate maloperation, just probably lead to maintainer's life safety to receive the threat, for this reason, we provide one kind and prevent maloperation high tension switchgear.
Disclosure of Invention
The invention aims to provide an anti-misoperation high-voltage switch cabinet to solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: a high-voltage switch cabinet preventing misoperation comprises a cabinet body, wherein a cabinet door of the cabinet body is locked through an electromagnetic lock, a control switch of the electromagnetic lock is installed on a limiting block on one side wall of a rotating plate, the rotating plate is movably embedded in the cabinet door of the cabinet body, a warning lamp is fixedly installed on the other side wall of the rotating plate, a rotating shaft is fixedly inserted at the top end of the rotating plate, the top of the rotating shaft penetrates through an inner cavity of the cabinet door and is fixed with a driven gear, the driven gear is meshed with a driving gear arranged on the inner side wall of the cabinet door, the driving gear is fixedly connected with the output end of a first motor through a transmission shaft, an electric leakage detector is arranged on the inner side wall of the cabinet door, a shell is arranged on the inner side wall of the cabinet door below the horizontal line of the rotating plate, a second motor, the utility model discloses a safe door, including the casing, cabinet door, movable rack, door inner chamber, movable rack one end fixedly connected with spacing axle, cabinet body inner chamber is provided with the gate, the gate is installed in the protective housing, the protective housing front side articulates there is the chamber door, just the fixed arc slide rail that is provided with of protective housing inner chamber top surface, the activity is provided with the movable block in the arc slide rail, arc pole and chamber door top surface fixed connection are passed through to movable block one end, just movable block top surface level is provided with the dead lever, dead lever tip fixed connection poker rod, with the coplanar incline of arc slide rail is provided with the fixed plate, the fixed plate lateral wall is provided with the contact pick-up, contact pick-up top is provided with the movable rod, cabinet door inside wall.
Further, the output of contact inductor and the treater electric connection of locating the cabinet door inside wall, the output and the wireless signal emission module electric connection of treater, wireless signal emission module and wireless signal receiving module network connection, wireless signal receiving module's output and terminal control equipment electric connection, terminal control equipment's output and total control switch electric connection.
Further, the fixed block lateral wall is provided with infrared emitter, the shell lateral wall is provided with infrared receiver, infrared receiver's output and treater electric connection, the output and the second motor electric connection of treater.
Furthermore, the output end of the leakage detector is electrically connected with the processor, and the output end of the processor is electrically connected with the second motor.
Furthermore, the processor is electrically connected with the alarm module, the processor is electrically connected with the power module in a two-way mode, and the output end of the processor is electrically connected with the warning lamp.
Further, the sweeping surface of the poke rod covers the movable rod, the rotating surface of the movable rod covers the contact sensor, and the central angle of the arc-shaped sliding rail is larger than 90 degrees.
Further, the bottom end of the rotating plate is rotatably connected with the cabinet door through a support shaft, the side wall of the limiting block is provided with a limiting hole matched with the limiting shaft, and the cabinet door is provided with an opening with a size slightly larger than that of the rotating plate.
Further, the warning light is the LED lamp plate, infrared emitter's model is IR333-A, infrared receiver chooses for use with the supporting model of infrared emitter can, the model of first motor and second motor is JGB 37-520.
Furthermore, the box door and the protective box are connected through a buckling structure.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, the leakage condition in the cabinet body is detected in real time through the leakage detector, once the leakage problem occurs, a detection signal is fed back to the processor, the rotating plate is driven by the motor to rotate 180 degrees, so that the control switch for opening the cabinet door rotates to the inner side surface in the cabinet, and meanwhile, the warning lamp rotates out and lights up a warning, so that a worker can clearly observe the abnormal condition, and the misoperation of touching the cabinet body is avoided; the gate is arranged in the protective box, when a circuit of the switch cabinet is maintained, when other unknowing workers open the box door to perform switching-on operation, the rotation of the box door drives the poking rod to rotate, so that the movable rod is in contact with the touch sensor, sensing signals are wirelessly sent to the terminal control equipment, relevant workers check the signals, and when the circuit is maintained, the master control switch is timely cut off, and misoperation switching-on is avoided; the safety of staff's during operation has been improved to and the warning nature of the accident condition appears, excellent in use effect.
Drawings
FIG. 1 is a schematic view of a structure for preventing misoperation in case of leakage current;
FIG. 2 is a schematic diagram of a structure for preventing misoperation during closing;
FIG. 3 is an enlarged view of the structure at A of the present invention;
fig. 4 is a block diagram of the working principle of the present invention.
In the figure: 1. a cabinet body; 2. an electromagnetic lock; 3. a control switch; 4. a rotating plate; 5. a limiting block; 6. a warning light; 7. a processor; 8. an electric leakage detector; 9. a rotating shaft; 10. a driven gear; 11. a driving gear; 12. a first motor; 13. a limiting shaft; 14. a movable rack; 15. a housing; 16. a second motor; 17. an infrared emitter; 18. an infrared receiver; 19. a protective box; 20. a gate; 21. a box door; 22. locking; 23. an arc-shaped slide rail; 24. a movable block; 25. an arcuate bar; 26. fixing the rod; 27. a poke rod; 28. a fixing plate; 29. a movable rod; 30. a contact sensor; 31. a wireless signal transmitting module; 32. a wireless signal receiving module; 33. a terminal control device; 34. a master control switch; 35. an alarm module; 36. and a power supply module.
The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides an anti-misoperation high-voltage switch cabinet, which has the advantages that the operation of mistakenly opening and closing a cabinet door is avoided, the safety of the high-voltage switch cabinet is improved, the life safety of workers is protected, and the use effect is good;
referring to fig. 1, a cabinet door of a cabinet body 1 is locked by an electromagnetic lock 2, the electromagnetic lock 2 is a product of the prior art, and can be directly used by technicians in the field, a control switch 3 of the electromagnetic lock 2 is installed on a limit block 5 on one side wall of a rotating plate 4, the control switch 3 and the electromagnetic lock 2 are of a matched structure, and can be purchased from the market, the control switch 3 can control a switch of the electromagnetic lock 2, specifically, the working principle of the electromagnetic lock 2 can be referred to, the rotating plate 4 is movably embedded in the cabinet door of the cabinet body 1, a warning lamp 6 is fixedly installed on the other side wall of the rotating plate 4, the warning lamp 6 is an LED lamp plate, and when an electric leakage accident occurs, the warning lamp 6 is turned out and turned up, and the workers are reminded of not;
referring to fig. 1, a rotating shaft 9 is fixedly inserted at the top end of the rotating plate 4, the top of the rotating shaft 9 extends into the inner cavity of the cabinet door and is fixed with a driven gear 10, the driven gear 10 is embedded on the cabinet door, one end of the driven gear 10 extends to the outer side of the inner side wall of the cabinet door, the driven gear 10 is meshed with a driving gear 11 arranged on the inner side wall of the cabinet door, the driving gear 11 is fixedly connected with the output end of a first motor 12 through a transmission shaft, when the processor 7 receives a leakage signal of the leakage detector 8, the first motor 12 is controlled to work, the driving gear 11 and the driven gear 10 are driven to rotate, thereby rotating the rotating plate 4 by 180 degrees, exchanging the positions of the control switch 3 and the warning lamp 6, preventing the staff from touching the control switch 3, the working personnel can quickly know the problem of electric leakage by matching with the lighted warning lamp 6, the operation of mistakenly opening the cabinet door is avoided, and the life safety of the working personnel is protected;
referring to fig. 1, an electric leakage detector 8 is disposed on an inner side wall of a cabinet door for monitoring whether an electric leakage condition occurs in a high voltage switch cabinet in real time, a housing 15 is disposed on the inner side wall of the cabinet door below a horizontal line of a rotating plate 4, the housing 15 is fixedly mounted on the inner side wall of the cabinet door through a fixing bolt, a through rack opening is formed in the housing 15, a second motor 16 is disposed on a side wall of the housing 15, the second motor 16 is connected with a gear disposed in an inner cavity of the housing 15 through a transmission shaft, the gear is engaged with a movable rack 14 vertically movably disposed in the inner cavity of the housing 15, a limit shaft 13 is fixedly connected to one end of the movable rack 14, when the rotating plate 4 rotates 180 degrees, a lower infrared receiver 18 receives an infrared signal of an infrared transmitter 17 and feeds the infrared signal back to a processor 7, the second motor 16 is controlled to operate, the gear disposed in the housing 15 is, until the limiting shaft 13 is inserted into the limiting block 5, the limiting and fixing effects are achieved;
referring to fig. 2 and 3, a gate 20 is arranged in the inner cavity of the cabinet body 1, the gate 20 is an electrical component necessary in each high-voltage switch, a current switch in the control cabinet body, the gate 20 is installed in a protective box 19, and a box door 21 is hinged to the front side of the protective box 19;
referring to fig. 2 and 3, an arc-shaped slide rail 23 is fixedly arranged on the top surface of the inner cavity of the protective box 19, a movable block 24 is movably arranged in the arc-shaped slide rail 23, one end of the movable block 24 is fixedly connected with the top surface of the box door 21 through an arc-shaped rod 25, that is, when the box door 21 is opened, the box door 21 rotates, so that the arc-shaped rod 25 extends out of the arc-shaped slide rail 23, the movable block 24 correspondingly moves, the fixed rod 26 and the poke rod 27 are synchronously driven to move, the fixed rod 26 is horizontally arranged on the top surface of the movable block 24, and the;
referring to fig. 2 and 3, a fixed plate 28 is disposed on the same plane as the arc-shaped slide rail, a contact sensor 30 is disposed on the side wall of the fixed plate 28, a movable rod 29 is disposed above the contact sensor 30, and as the box door 21 is gradually opened, the toggle rod 27 continuously rotates to contact the movable rod 29 and drives the movable rod 29 to synchronously rotate until the end of the movable rod 29 contacts the contact sensor 30, and the contact sensor 30 detects a contact signal.
Referring to fig. 4, the output end of the touch sensor 30 is electrically connected to the processor 7 disposed on the inner sidewall of the cabinet door, the touch sensor 30 receives the touch signal, and fed back to the processor 7, the output end of the processor 7 is electrically connected with the wireless signal transmitting module 31, the wireless signal transmitting module 31 is connected with the wireless signal receiving module 32 through a network, the wireless signal transmitting module 31 and the wireless signal receiving module 32 transmit signals, the output end of the wireless signal receiving module 32 is electrically connected with the terminal control device 33, the transmitted signals are reflected on the terminal control device 33, the related staff judges and confirms the condition of line maintenance, the master control switch 34 is cut off in time, forced switching-on is avoided, the condition that the electric shock occurs to the maintainer is caused, and the output end of the terminal control device 33 is electrically connected with the master control switch 34.
Referring to fig. 4, an infrared emitter 17 is disposed on a side wall of the fixed block, an infrared receiver 18 is disposed on a side wall of the housing 15, an output end of the infrared receiver 18 is electrically connected to the processor 7, and an output end of the processor 7 is electrically connected to the second motor 16, when the rotating plate 4 rotates 180 degrees, the infrared receiver 18 receives an infrared signal from the infrared emitter 17 and feeds the infrared signal back to the processor 7, so as to control the second motor 16 to operate.
Referring to fig. 4, the output terminal of the leakage detector 8 is electrically connected to the processor 7, the output terminal of the processor 7 is electrically connected to the second motor 16, and the processor 7 controls the first motor 12 to operate when receiving the leakage signal of the leakage detector 8.
Referring to fig. 4, the processor 7 is electrically connected to the alarm module 35, when the worker closes the switch by mistake, the alarm module 35 plays a role of alarm, the output end of the alarm module 35 is electrically connected to the alarm, the processor 7 is electrically connected to the power module 36 in a bidirectional manner, so as to provide a power source for the processor 7, and the output end of the processor 7 is electrically connected to the warning light 6.
The sweeping surface of the poke rod 27 covers the movable rod 29, the rotating surface of the movable rod 29 covers the contact sensor 30, so that the rotation of the poke rod 27 can drive the movable rod 29 to rotate, the rotation of the movable rod 29 can enable the end part of the movable rod to be in contact with the contact sensor 30, and the central angle of the arc-shaped slide rail 23 is larger than 90 degrees.
The bottom end of the rotating plate 4 is rotatably connected with the cabinet door through a support shaft, the side wall of the limiting block 5 is provided with a limiting hole matched with the limiting shaft 13, the limiting shaft 13 is conveniently and tightly inserted, the limiting and fixing effect is achieved, an opening with a size slightly larger than that of the rotating plate 4 is formed in the cabinet door, and the rotating plate 4 is ensured to smoothly rotate for 180 degrees.
The model of the infrared emitter 17 is IR333-A, the model of the infrared receiver 18 is selected to be matched with the infrared emitter 17, and the models of the first motor 12 and the second motor 16 are JGB 37-520.
The door 21 and the protective box 19 are structurally connected through a lock 22.
The standard parts used in the invention can be purchased from the market, the special-shaped parts can be customized according to the description of the specification and the accompanying drawings, the specific connection mode of each part adopts conventional means such as bolts, rivets, welding and the like mature in the prior art, the machines, the parts and equipment adopt conventional models in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, so that the detailed description is omitted.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides a prevent maloperation high tension switchgear, includes the cabinet body (1), its characterized in that: the cabinet door of the cabinet body (1) is locked through an electromagnetic lock (2), a control switch (3) of the electromagnetic lock (2) is installed on a limiting block (5) on one side wall of a rotating plate (4), the rotating plate (4) is movably embedded in the cabinet door of the cabinet body (1), a warning lamp (6) is fixedly installed on the other side wall of the rotating plate (4), a rotating shaft (9) is fixedly inserted at the top end of the rotating plate (4), the top of the rotating shaft (9) penetrates through the inner cavity of the cabinet door and is fixed with a driven gear (10), the driven gear (10) is meshed with a driving gear (11) arranged on the inner side wall of the cabinet body, the driving gear (11) is fixedly connected with the output end of a first motor (12) through a transmission shaft, an electric leakage detector (8) is arranged on the inner side wall of the cabinet body, and an outer shell (15) is arranged below the horizontal line of the, the side wall of the shell (15) is provided with a second motor (16), the second motor (16) is connected with a gear arranged in an inner cavity of the shell (15) through a transmission shaft, the gear is meshed with a movable rack (14) vertically movably arranged in the inner cavity of the shell (15), one end of the movable rack (14) is fixedly connected with a limiting shaft (13), an inner cavity of the cabinet body (1) is provided with a gate (20), the gate (20) is installed in a protective box (19), the front side of the protective box (19) is hinged with a box door (21), the top surface of the inner cavity of the protective box (19) is fixedly provided with an arc-shaped slide rail (23), a movable block (24) is movably arranged in the arc-shaped slide rail (23), one end of the movable block (24) is fixedly connected with the top surface of the box door (21) through an arc-shaped rod (25), and the top surface of the movable block, dead lever (26) tip fixed connection poker rod (27), with arc slide rail is provided with fixed plate (28) with the plane incline side, fixed plate (28) lateral wall is provided with contact pick up ware (30), contact pick up ware (30) top is provided with movable rod (29), the cabinet door inside wall is provided with treater (7).
2. The anti-misoperation high-voltage switch cabinet according to claim 1, characterized in that: the utility model discloses a cabinet door, including contact inductor (30), treater (7) electric connection of the output of contact inductor (30) and locating the cabinet door inside wall, the output and the radio signal emission module (31) electric connection of treater (7), radio signal emission module (31) and radio signal receiving module (32) internet access, the output and terminal control equipment (33) electric connection of radio signal receiving module (32), the output and the total control switch (34) electric connection of terminal control equipment (33).
3. The anti-misoperation high-voltage switch cabinet according to claim 1, characterized in that: the fixed block lateral wall is provided with infrared transmitter (17), shell (15) lateral wall is provided with infrared receiver (18), the output and treater (7) electric connection of infrared receiver (18), the output and second motor (16) electric connection of treater (7).
4. The anti-misoperation high-voltage switch cabinet according to claim 1, characterized in that: the output end of the electric leakage detector (8) is electrically connected with the processor (7), and the output end of the processor (7) is electrically connected with the second motor (16).
5. The anti-misoperation high-voltage switch cabinet according to claim 1, characterized in that: the alarm device is characterized in that the processor (7) is electrically connected with the alarm module (35), the processor (7) is electrically connected with the power module (36) in a two-way mode, and the output end of the processor (7) is electrically connected with the warning lamp (6).
6. The anti-misoperation high-voltage switch cabinet according to claim 1, characterized in that: the sweeping surface of the poke rod (27) covers the movable rod (29), the rotating surface of the movable rod (29) covers the contact sensor (30), and the central angle of the arc-shaped sliding rail (23) is larger than 90 degrees.
7. The anti-misoperation high-voltage switch cabinet according to claim 1, characterized in that: the bottom end of the rotating plate (4) is rotatably connected with the cabinet door through a support shaft, the side wall of the limiting block (5) is provided with a limiting hole matched with the limiting shaft (13), and the cabinet door is provided with an opening with a size slightly larger than that of the rotating plate (4).
8. The anti-misoperation high-voltage switch cabinet according to claim 1, characterized in that: the warning light (6) is the LED lamp plate, the model of infrared transmitter (17) is IR333-A, infrared receiver (18) choose for use with infrared transmitter (17) supporting model can, the model of first motor (12) and second motor (16) is JGB 37-520.
9. The anti-misoperation high-voltage switch cabinet according to claim 1, characterized in that: the box door (21) and the protective box (19) are structurally connected through a buckle lock (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010041456.8A CN111224330A (en) | 2020-01-15 | 2020-01-15 | Anti-misoperation high-voltage switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010041456.8A CN111224330A (en) | 2020-01-15 | 2020-01-15 | Anti-misoperation high-voltage switch cabinet |
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| Publication Number | Publication Date |
|---|---|
| CN111224330A true CN111224330A (en) | 2020-06-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010041456.8A Pending CN111224330A (en) | 2020-01-15 | 2020-01-15 | Anti-misoperation high-voltage switch cabinet |
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| CN (1) | CN111224330A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140224625A1 (en) * | 2011-11-01 | 2014-08-14 | China Mining Drives & Automation Co. Ltd. | Power-down electrical locking protection device for underground explosion protection frequency converter |
| CN204732720U (en) * | 2015-07-01 | 2015-10-28 | 国网四川省电力公司内江供电公司 | A kind of power distribution cabinet |
| CN207703962U (en) * | 2017-12-24 | 2018-08-07 | 李笑东 | A kind of earth detector for power distribution cabinet |
| CN108616052A (en) * | 2018-06-08 | 2018-10-02 | 赵浩凯 | A kind of power distribution cabinet possessing automatic electric leakage lifting protector |
| CN209266954U (en) * | 2019-02-25 | 2019-08-16 | 江苏中远电气设备有限公司 | A kind of distribution box with electroshock-proof function |
| CN209709474U (en) * | 2019-05-22 | 2019-11-29 | 济南法奥电气有限责任公司 | A kind of distribution box for alarm of leaking electricity |
-
2020
- 2020-01-15 CN CN202010041456.8A patent/CN111224330A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140224625A1 (en) * | 2011-11-01 | 2014-08-14 | China Mining Drives & Automation Co. Ltd. | Power-down electrical locking protection device for underground explosion protection frequency converter |
| CN204732720U (en) * | 2015-07-01 | 2015-10-28 | 国网四川省电力公司内江供电公司 | A kind of power distribution cabinet |
| CN207703962U (en) * | 2017-12-24 | 2018-08-07 | 李笑东 | A kind of earth detector for power distribution cabinet |
| CN108616052A (en) * | 2018-06-08 | 2018-10-02 | 赵浩凯 | A kind of power distribution cabinet possessing automatic electric leakage lifting protector |
| CN209266954U (en) * | 2019-02-25 | 2019-08-16 | 江苏中远电气设备有限公司 | A kind of distribution box with electroshock-proof function |
| CN209709474U (en) * | 2019-05-22 | 2019-11-29 | 济南法奥电气有限责任公司 | A kind of distribution box for alarm of leaking electricity |
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Application publication date: 20200602 |