CN112636186A - Join in marriage net low pressure JP cabinet earth connection device - Google Patents
Join in marriage net low pressure JP cabinet earth connection device Download PDFInfo
- Publication number
- CN112636186A CN112636186A CN202011431365.1A CN202011431365A CN112636186A CN 112636186 A CN112636186 A CN 112636186A CN 202011431365 A CN202011431365 A CN 202011431365A CN 112636186 A CN112636186 A CN 112636186A
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- China
- Prior art keywords
- wire
- grounding
- cabinet
- mechanical linkage
- air switch
- 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
- 208000027418 Wounds and injury Diseases 0.000 abstract description 3
- 230000006378 damage Effects 0.000 abstract description 3
- 208000014674 injury Diseases 0.000 abstract description 3
- 238000009413 insulation Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 210000001145 finger joint Anatomy 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
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
- H02B1/16—Earthing arrangements
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/003—Earthing switches
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
- H01H31/04—Interlocking mechanisms
- H01H31/10—Interlocking mechanisms for interlocking two or more switches
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Patch Boards (AREA)
Abstract
The invention discloses a distribution network low-voltage JP cabinet grounding wire device, which comprises: a JP cabinet and a mechanical linkage knife switch mechanism; the JP cabinet is inside through mounting bracket fixed mounting air switch, mechanical linkage plug-in strip mechanism installs in the inside of JP cabinet, and mechanical linkage plug-in strip mechanism includes a plurality of inlet ends, the three-phase live wire that a plurality of outlet ends of air switch are connected is connected with mechanical linkage plug-in strip mechanism inlet end. According to the air switch, the grounding connecting wire is additionally arranged and connected at the wire outlet end of the air switch, the grounding connecting wire and the three-phase live wire combination of the air switch are connected with the mechanical linkage knife switch mechanism, and linkage control with the air switch is realized through the mechanical linkage knife switch mechanism, namely the three-phase live wire is opened and the grounding connecting wire is closed; the three-phase live wire is closed, and the ground connection connecting wire is opened a way, realizes the good ground connection of three-phase live wire, reduces and joins in marriage net fortune dimension personnel work load, reduces and joins in marriage net fortune dimension personnel because of hanging the bodily injury risk that the earth connection leads to.
Description
Technical Field
The invention relates to the technical field of low-voltage JP cabinets, in particular to a grounding wire device of a distribution network low-voltage JP cabinet.
Background
A distribution transformer comprehensive power distribution cabinet is a JP cabinet for short, a large number of JP cabinets are applied to rural power lines and distribution station areas along with continuous deepening of rural power grid transformation, the JP cabinet is designed for meeting the requirements of standardization, miniaturization and outdoor type of rural low-voltage distribution devices, and the JP cabinet integrates power distribution, metering, protection and capacitance reactive compensation into a whole.
The low-voltage side-turn maintenance of the transformer needs to install a grounding wire on a 0.4kV # 1 pole, and particularly, a plurality of loops of lower household wires and optical cables for moving, communicating and telecommunication exist on low-voltage poles and towers in an urban area; some roof racks are mostly used, the situation that the grounding wire cannot be installed exists, the operation difficulty of operators is increased, and the risk of climbing a pole and dropping a person is also existed.
Disclosure of Invention
The invention aims to provide a grounding wire device of a distribution network low-voltage JP cabinet, which is used for solving the defects in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a join in marriage net low pressure JP cabinet and meet line device, includes: a JP cabinet and a mechanical linkage knife switch mechanism;
an air switch is fixedly installed inside the JP cabinet through a mounting frame, the mechanical linkage knife switch mechanism is installed inside the JP cabinet and comprises a plurality of wire inlet ends, a three-phase live wire connected with the plurality of wire outlet ends of the air switch is connected with the wire inlet end of the mechanical linkage knife switch mechanism, a grounding connecting wire is additionally arranged at the wire outlet end of the air switch, and the grounding connecting wire is connected with the wire inlet end of the mechanical linkage knife switch mechanism;
the mechanical linkage knife switch mechanism is assembled between the following two stations for switching, wherein in the first station, a three-phase live wire connected to the mechanical linkage knife switch mechanism is opened, a grounding connecting wire is closed, in the second station, the mechanical linkage knife switch mechanism is connected to the three-phase live wire closed circuit, and the grounding connecting wire is opened.
As a further description of the above technical solution:
mechanical linkage plug-in strip mechanism includes the insulation board, the one end equidistance of insulation board is fixed with three first connecting terminal and first ground terminal, the other end equidistance of insulation board is fixed with three second connecting terminal and second ground terminal, the middle section equidistance of insulation board is provided with four articulated framves, each all rotate on the articulated frame and be connected with the blade, each be connected with the handle between the blade top, it is three first connecting terminal is connected with first electrically conductive connection piece rather than the articulated frame of corresponding position department, be connected with the electrically conductive connection piece of second between the articulated frame of second ground terminal and its corresponding position department.
As a further description of the above technical solution:
the first connecting terminal is used for being connected with a three-phase live wire connected with the air switch outlet end, and the first grounding terminal is used for being connected with a grounding connecting wire additionally arranged on the air switch outlet end.
As a further description of the above technical solution:
and the second grounding terminal is connected with a grounding down lead.
As a further description of the above technical solution:
the handle is also connected with a lock for preventing from being closed by mistake.
As a further description of the above technical solution:
and the first connecting terminal, the first grounding terminal, the second connecting terminal and the second grounding terminal are all provided with tool holders used for being connected with the blades.
As a further description of the above technical solution:
the length of the blade is greater than the distance between the hinge frame and the first connecting terminal.
The invention provides a grounding wire device of a distribution network low-voltage JP cabinet. The method has the following beneficial effects:
the distribution network low-voltage JP cabinet grounding wire device is characterized in that a grounding connecting wire is additionally arranged at a wire outlet end of an air switch, the grounding connecting wire and a three-phase live wire combination of the air switch are connected with a mechanical linkage knife switch mechanism, and linkage control with the air switch is realized through the mechanical linkage knife switch mechanism, namely the three-phase live wire is in an open circuit, and the grounding connecting wire is in a closed circuit; three-phase live wire closed circuit, the ground connection line is opened a way, realize the good ground connection of three-phase live wire, net fortune dimension personnel work load is joined in marriage in the reduction, net fortune dimension personnel are joined in marriage because of hanging the bodily injury risk that the earth connection leads to in the reduction, set up simultaneously and prevent mistake closure lock, satisfy the relevant regulation of preventing mistake closure, air switch can pull open alone promptly, just can with earthing switch after air switch pulls open, air switch can not close after earthing switch closes, earthing switch can not close after air switch closes.
Drawings
Fig. 1 is a schematic overall structure diagram of a distribution network low-voltage JP cabinet ground wire device provided by the invention;
FIG. 2 is a structural diagram illustrating a state in which a three-phase live wire is closed and a grounding connecting wire is open in a mechanical linkage knife mechanism according to the present invention;
fig. 3 is a structural diagram illustrating a state in which a three-phase live wire is open and a grounding connecting wire is closed in the mechanical linkage knife mechanism of the present invention.
Illustration of the drawings:
1. a JP cabinet; 2. a mounting frame; 3. an air switch; 4. a mechanically linked knife mechanism; 41. an insulating plate; 41a, a first connection terminal; 41b, a second connection terminal; 411. a first conductive connection pad; 42a, a first ground terminal; 42b, a second ground terminal; 421. a second conductive connecting sheet; 43. a hinged frame; 44. a blade; 45. a handle; 46. a locking against false closing; 5. a three-phase live wire; 6. a ground connection line; 7. and a down conductor connected to ground.
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.
Referring to fig. 1-3, a join in marriage net low pressure JP cabinet earth connection device includes: a JP cabinet 1 and a mechanical linkage knife switch mechanism 4;
an air switch 3 is fixedly installed inside the JP cabinet 1 through a mounting frame 2, a mechanical linkage knife switch mechanism 4 is installed inside the JP cabinet 1, the mechanical linkage knife switch mechanism 4 comprises a plurality of wire inlet ends, a three-phase live wire 5 connected with the plurality of wire outlet ends of the air switch 3 is connected with the wire inlet end of the mechanical linkage knife switch mechanism 4, a grounding connecting wire 6 is additionally installed at the wire outlet end of the air switch 3, and the grounding connecting wire 6 is connected with the wire inlet end of the mechanical linkage knife switch mechanism 4;
the mechanical linkage knife switch mechanism 4 is assembled between a first station, a three-phase live wire 5 connected to the mechanical linkage knife switch mechanism 4 is opened, a grounding connecting wire 6 is closed, a second station, a three-phase live wire 5 connected to the mechanical linkage knife switch mechanism 4 is closed, and the grounding connecting wire 6 is opened.
Specifically, a grounding connecting wire 6 is additionally arranged at the wire outlet end of the air switch 3, the grounding connecting wire 6 and the three-phase live wire 5 of the air switch 3 are combined and connected with the mechanical linkage knife switch mechanism 4, and linkage control with the air switch 3 is realized through the mechanical linkage knife switch mechanism 4, namely the three-phase live wire 5 is opened and the grounding connecting wire 6 is closed; 5 closed circuits of three-phase live wire, and ground connection 6 opens a way, realizes 5 good ground connections of three-phase live wire, reduces and joins in marriage net fortune dimension personnel work load, reduces and joins in marriage net fortune dimension personnel because of hanging the bodily injury risk that the earth connection leads to.
Mechanical linkage plug-in strip mechanism 4 includes insulation board 41, the one end equidistance of insulation board 41 is fixed with three first connection terminal 41a and first ground terminal 42a, the other end equidistance of insulation board 41 is fixed with three second connection terminal 41b and second ground terminal 42b, the middle section equidistance of insulation board 41 is provided with four articulated framves 43, all rotate on each articulated frame 43 and be connected with blade 44, be connected with handle 45 between each blade 44 top, be connected with first electrically conductive connection piece 411 between three first connection terminal 41a and the articulated frame 43 rather than the corresponding position department, be connected with second electrically conductive connection piece 421 between second ground terminal 42b and the articulated frame 43 rather than the corresponding position department.
Specifically, as shown in fig. 2, when the blades 44 connected to the four hinge brackets 43 rotate downward to close the three second connection terminals 41b and the three second ground terminals 42b, since the first conductive connecting sheet 411 is connected between the three first connection terminals 41a and the hinge brackets 43 at the corresponding positions, the three first connection terminals 41a are in conductive communication with the three second connection terminals 41b, the three-phase live wire 5 connected to the outlet end of the air switch 3 is connected, that is, the three-phase live wire 5 is closed, and the second ground terminal 42b is disconnected from the first ground terminal 42a, that is, the ground connection wire 6 is open;
as shown in fig. 3, when the blades 44 connected to the four hinge brackets 43 rotate upward to close the three first connection terminals 41a and the first ground terminal 42a, since the second conductive connection piece 421 is connected between the second ground terminal 42b and the hinge bracket 43 at the corresponding position, the second ground terminal 42b is in conductive communication with the first ground terminal 42a, i.e., the ground connection line 6 is closed, and the three first connection terminals 41a are disconnected from the three second connection terminals 41b, so that the three-phase live wire 5 connected to the outlet end of the air switch 3 is disconnected, i.e., the three-phase live wire 5 is opened.
The first connection terminal 41a is used for connecting with a three-phase live wire 5 connected with the outlet end of the air switch 3, and the first grounding terminal 41b is used for connecting with a grounding connection wire 6 additionally arranged on the outlet end of the air switch 3.
The second ground terminal 42b is connected to a ground down lead 7.
The handle 45 is also connected with a false-closing prevention lock 46.
The anti-misoperation locking lock 46 is arranged, so that the relevant regulations of anti-misoperation locking are met, namely the air switch 3 can be pulled open independently, the air switch 3 can be pulled open and then connected with the grounding switch, the air switch 3 can not be connected after the grounding switch is connected, and the grounding switch can not be connected after the air switch 3 is connected, wherein the grounding switch is connected and disconnected with the grounding down lead 7 by the finger-joint grounding connecting wire 6.
The first connection terminal 41a, the first ground terminal 42a, the second connection terminal 41b, and the second ground terminal 42b are each provided with a holder for connecting the insert 44.
The blade 44 has a length greater than the interval between the hinge bracket 43 and the first connection terminal 41 a.
By providing the tool holders on the first connection terminal 41a, the first ground terminal 42a, the second connection terminal 41b, and the second ground terminal 42b, the blade 44 can be held when the blade 44 is closed, and stability during closing is improved.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (7)
1. The utility model provides a join in marriage net low pressure JP cabinet and meet line device which characterized in that includes: a JP cabinet (1) and a mechanical linkage knife switch mechanism (4);
an air switch (3) is fixedly installed inside the JP cabinet (1) through a mounting frame (2), the mechanical linkage knife switch mechanism (4) is installed inside the JP cabinet (1), the mechanical linkage knife switch mechanism (4) comprises a plurality of wire inlet ends, a three-phase live wire (5) connected with a plurality of wire outlet ends of the air switch (3) is connected with the wire inlet end of the mechanical linkage knife switch mechanism (4), a grounding connecting wire (6) is additionally arranged at the wire outlet end of the air switch (3), and the grounding connecting wire (6) is connected with the wire inlet end of the mechanical linkage knife switch mechanism (4);
the mechanical linkage knife switch mechanism (4) is assembled between the following two stations for switching, wherein in the first station, a three-phase live wire (5) connected to the mechanical linkage knife switch mechanism (4) is in an open circuit, a grounding connecting wire (6) is in a closed circuit, in the second station, the mechanical linkage knife switch mechanism (4) is connected to the three-phase live wire (5) in the closed circuit, and the grounding connecting wire (6) is in an open circuit.
2. The grounding wire device for the distribution network low-voltage JP cabinet is characterized in that the mechanical linkage knife mechanism (4) comprises an insulating plate (41), three first connecting terminals (41a) and three first grounding terminals (42a) are fixed to one end of the insulating plate (41) at equal intervals, three second connecting terminals (41b) and three second grounding terminals (42b) are fixed to the other end of the insulating plate (41) at equal intervals, four hinge frames (43) are arranged at equal intervals in the middle section of the insulating plate (41), a blade (44) is rotatably connected to each hinge frame (43), a handle (45) is connected between the top ends of the blades (44), a first conductive connecting piece (411) is connected between the three first connecting terminals (41a) and the hinge frames (43) at the corresponding positions, and a second conductive connecting piece (421) is connected between the second grounding terminal (42b) and the hinge frames (43) at the corresponding positions.
3. The distribution network low-voltage JP cabinet grounding wire device as claimed in claim 2, wherein the first connecting terminal (41a) is used for connecting with a three-phase live wire (5) connected with an air switch (3) outlet, and the first grounding terminal (41b) is used for connecting with a grounding connecting wire (6) additionally arranged on the air switch (3) outlet.
4. The grounding wire device of the distribution network low-voltage JP cabinet as claimed in claim 2, wherein a grounding down-lead (7) is connected to the second grounding terminal (42 b).
5. The grounding wire device of a distribution network low-voltage JP cabinet as claimed in claim 2, wherein a locking device (46) for preventing false closing is further connected to the handle (45).
6. The grounding wire device of the distribution network low-voltage JP cabinet as claimed in claim 2, wherein the first connecting terminal (41a), the first grounding terminal (42a), the second connecting terminal (41b) and the second grounding terminal (42b) are provided with tool holders for connecting with a blade (44).
7. Distribution network low pressure JP cabinet ground wire device of claim 1, characterized in that the length of the blade (44) is larger than the distance between the hinge bracket (43) and the first connection terminal (41 a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011431365.1A CN112636186B (en) | 2020-12-09 | 2020-12-09 | Join in marriage net low pressure JP cabinet earth connection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011431365.1A CN112636186B (en) | 2020-12-09 | 2020-12-09 | Join in marriage net low pressure JP cabinet earth connection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112636186A true CN112636186A (en) | 2021-04-09 |
| CN112636186B CN112636186B (en) | 2023-04-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011431365.1A Active CN112636186B (en) | 2020-12-09 | 2020-12-09 | Join in marriage net low pressure JP cabinet earth connection device |
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| Country | Link |
|---|---|
| CN (1) | CN112636186B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1107408A1 (en) * | 1999-12-07 | 2001-06-13 | Kabushiki Kaisha Meidensha | Gas-insulated switchgear |
| CN201667490U (en) * | 2010-04-13 | 2010-12-08 | 渭南供电局 | A grounding device for a low-voltage standard distribution box |
| CN203367955U (en) * | 2013-07-11 | 2013-12-25 | 国家电网公司 | Low voltage power cable isolation device |
| CN203503992U (en) * | 2013-10-22 | 2014-03-26 | 国家电网公司 | A low-voltage reactive power compensation distribution box with a grounding mechanism |
| CN106024481A (en) * | 2016-07-25 | 2016-10-12 | 李亮棠 | Isolated grounding device for power-off overhauling and maintenance at low voltage side |
| CN205666476U (en) * | 2016-06-06 | 2016-10-26 | 国网山东省电力公司高唐县供电公司 | Change summary statement case is joined in marriage to rural power grids with earthing knife -switch |
| CN207282971U (en) * | 2017-09-12 | 2018-04-27 | 国网安徽省电力公司芜湖县供电公司 | Portable tape grounding function power distributing cabinet |
| CN208461233U (en) * | 2018-07-02 | 2019-02-01 | 云南电网有限责任公司临沧供电局 | A kind of JP cabinet |
-
2020
- 2020-12-09 CN CN202011431365.1A patent/CN112636186B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1107408A1 (en) * | 1999-12-07 | 2001-06-13 | Kabushiki Kaisha Meidensha | Gas-insulated switchgear |
| CN201667490U (en) * | 2010-04-13 | 2010-12-08 | 渭南供电局 | A grounding device for a low-voltage standard distribution box |
| CN203367955U (en) * | 2013-07-11 | 2013-12-25 | 国家电网公司 | Low voltage power cable isolation device |
| CN203503992U (en) * | 2013-10-22 | 2014-03-26 | 国家电网公司 | A low-voltage reactive power compensation distribution box with a grounding mechanism |
| CN205666476U (en) * | 2016-06-06 | 2016-10-26 | 国网山东省电力公司高唐县供电公司 | Change summary statement case is joined in marriage to rural power grids with earthing knife -switch |
| CN106024481A (en) * | 2016-07-25 | 2016-10-12 | 李亮棠 | Isolated grounding device for power-off overhauling and maintenance at low voltage side |
| CN207282971U (en) * | 2017-09-12 | 2018-04-27 | 国网安徽省电力公司芜湖县供电公司 | Portable tape grounding function power distributing cabinet |
| CN208461233U (en) * | 2018-07-02 | 2019-02-01 | 云南电网有限责任公司临沧供电局 | A kind of JP cabinet |
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| Publication number | Publication date |
|---|---|
| CN112636186B (en) | 2023-04-14 |
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Effective date of registration: 20230330 Address after: No. 22, Jinlong Road, Yulong County, Lijiang City, Yunnan Province 650000 Applicant after: LIJIANG POWER SUPPLY BUREAU OF YUNNAN POWER GRID Co.,Ltd. Address before: 674300 no.946, Wange Road, Daxing Town, Ninglang Yi Autonomous County, Lijiang City, Yunnan Province Applicant before: Lijiang Ninglang Power Supply Bureau of Yunnan Power Grid Co.,Ltd. |
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