CN111628413A - Movable safety isolation structure of power supply and distribution system - Google Patents
Movable safety isolation structure of power supply and distribution system Download PDFInfo
- Publication number
- CN111628413A CN111628413A CN202010459291.6A CN202010459291A CN111628413A CN 111628413 A CN111628413 A CN 111628413A CN 202010459291 A CN202010459291 A CN 202010459291A CN 111628413 A CN111628413 A CN 111628413A
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- China
- Prior art keywords
- power supply
- switch
- isolation structure
- safety isolation
- distribution
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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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Links
- 238000002955 isolation Methods 0.000 title claims abstract description 31
- 238000010586 diagram Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 230000002265 prevention Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
Images
Classifications
-
- 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
- H02B1/24—Circuit arrangements for boards or switchyards
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H27/00—Switches operated by a removable member, e.g. key, plug or plate; Switches operated by setting members according to a single predetermined combination out of several possible settings
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Distribution Board (AREA)
Abstract
The invention provides a mobile safety isolation structure of a power supply and distribution system, which comprises the following components in series connection between a power supply and distribution trunk line 105 and branch lines 106: a first switch and a second switch; the first switch includes: a moving contact 101 and a stationary contact 102; the second switch includes: a moving contact 103 and a stationary contact 104; each branch line 106 is connected to the power supply and distribution trunk line 105 through a mobile safety isolation structure of the power supply and distribution system, or a plurality of branch lines 106 are connected to the power supply and distribution trunk line 105 through a mobile safety isolation structure of the power supply and distribution system. The movable device is arranged between the power supply and distribution trunk line and the branch line, the movable device can be operated by a special tool, the possibility of misoperation is completely eliminated, the safety isolation of the power supply and distribution trunk line and the branch line is ensured, and personal electric shock safety accidents caused by misoperation are enabled to return to zero.
Description
Technical Field
The invention relates to the field of power grids and power distribution, in particular to a movable safety isolation structure of a power supply and distribution system.
Background
Generally, as shown in fig. 1, 2 and 3, a breaker switch a, a fuse switch B and a knife switch C are respectively arranged between the conventional power supply and distribution trunk 105 and the branch 106 to communicate between the power supply and distribution trunk 105 and the branch 106.
The common characteristic of the breaker switch a, the fuse switch B and the knife switch C is that only the opening and closing between the power supply and distribution trunk 105 and the branch 106 can be satisfied, but the safe isolation between the power supply and distribution trunk 105 and the branch 106 cannot be satisfied. Once someone has performed misoperation on the breaker switch a, the fuse switch B and the disconnecting link switch C, the power supply and distribution trunk 105 immediately supplies power to the branch line 106, and if an operation and maintenance person happens to overhaul on the branch line 106 at the moment, an electric shock safety accident may be caused by live working due to sudden power supply.
Therefore, the current power supply system of the independent power distribution cabinet can only meet the requirements of switching on and switching off between the power supply and distribution trunk line 105 and the branch line 106, but cannot meet the requirements of safe power supply between the power supply and distribution trunk line 105 and the branch line 106, which is not a safety hazard and a defect, and personal electric shock safety accidents caused by misoperation of the breaker switch a, the fuse switch B and the disconnecting link switch C between the power supply and distribution trunk line 105 and the branch line 106 are serious potential hazards of public safety in the electrical field.
Disclosure of Invention
In view of the defects in the prior art, the invention aims to provide a mobile safety isolation structure of a power supply and distribution system.
According to the invention, the mobile safety isolation structure of the power supply and distribution system comprises the following components which are connected in series between a power supply and distribution trunk line 105 and a branch line 106: a first switch and a second switch;
the first switch includes: a moving contact 101 and a stationary contact 102;
the second switch includes: a moving contact 103 and a stationary contact 104;
each branch line 106 is connected to the power supply and distribution trunk line 105 through a mobile safety isolation structure of the power supply and distribution system, or a plurality of branch lines 106 are connected to the power supply and distribution trunk line 105 through a mobile safety isolation structure of the power supply and distribution system.
Preferably, the movable contacts 101 and 103 are driven by a driving structure.
Preferably, the drive structure comprises a key lock structure;
the movable contact 101 and the movable contact 103 are connected to a lock cylinder of the key lock structure and driven by a key matched with the lock cylinder.
Preferably, a circuit breaker is further connected in series between the first switch and the second switch.
Preferably, a fuse is further connected in series between the first switch and the second switch.
Preferably, the first switch and the second switch are directly connected through a bus.
Compared with the prior art, the invention has the following beneficial effects:
the movable device is arranged between the power supply and distribution trunk line and the branch line, the movable device can be operated by a special tool, the possibility of misoperation is completely eliminated, the safety isolation of the power supply and distribution trunk line and the branch line is ensured, and personal electric shock safety accidents caused by misoperation are enabled to return to zero.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a first conventional wiring diagram of a supply and distribution trunk and branch;
FIG. 2 is a wiring diagram of a second conventional supply and distribution trunk and branch;
FIG. 3 is a wiring diagram of a third conventional supply and distribution trunk and branch;
FIG. 4 is a schematic structural view of example 1 of the present invention;
FIG. 5 is a schematic structural view of example 2 of the present invention;
fig. 6 is a schematic structural diagram of embodiment 3 of the present invention.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit of the invention. All falling within the scope of the present invention.
Example 1
As shown in fig. 4, the mobile safety isolation structure of the power supply and distribution system provided in this embodiment is provided with a breaker moving device 400 between the power supply and distribution trunk 105 and the branch 106.
The breaker moving device 400 includes a first switch and a second switch.
The first switch includes: a moving contact 101 and a stationary contact 102, and the second switch includes: a moving contact 103 and a stationary contact 104. Each branch 106 is connected to the power supply and distribution trunk 105 through a mobile safety isolation structure of the power supply and distribution system, or a plurality of branches 106 are connected to the power supply and distribution trunk 105 through a mobile safety isolation structure of the power supply and distribution system.
After the circuit breaker moving device 400 is removed, no matter what state the circuit breaker is in, the branch line 106 is not electrified, and the emergency repair operation and maintenance of the branch line 106 are ensured.
In order to achieve better prevention of misoperation, the movable contacts 101 and 103 are driven by a driving structure.
For example, the driving structure includes a key lock structure, and the movable contact 101 and the movable contact 103 are connected to a lock cylinder of the key lock structure and driven by a key matched with the lock cylinder.
In this embodiment, a circuit breaker a is connected between the first switch and the second switch, so as to realize protection functions such as overload and short circuit.
Example 2
As shown in fig. 4, the mobile safety isolation structure of the power supply and distribution system provided in this embodiment is provided with a fuse moving device 500 between the power supply and distribution trunk 105 and the branch 106.
The fuse moving apparatus 500 includes a first switch and a second switch.
The first switch includes: a moving contact 101 and a stationary contact 102, and the second switch includes: a moving contact 103 and a stationary contact 104. Each branch 106 is connected to the power supply and distribution trunk 105 through a mobile safety isolation structure of the power supply and distribution system, or a plurality of branches 106 are connected to the power supply and distribution trunk 105 through a mobile safety isolation structure of the power supply and distribution system.
After the fuse moving device 500 is removed, no matter what state the fuse is, the branch line 106 is not electrified, and the emergency repair operation and maintenance of the branch line 106 are ensured.
In order to achieve better prevention of misoperation, the movable contacts 101 and 103 are driven by a driving structure.
For example, the driving structure includes a key lock structure, and the movable contact 101 and the movable contact 103 are connected to a lock cylinder of the key lock structure and driven by a key matched with the lock cylinder.
In this embodiment, a fuse BO is connected between the first switch and the second switch and blows when the current exceeds a predetermined value.
Example 3
As shown in fig. 4, in the mobile safety isolation structure of the power supply and distribution system provided in this embodiment, a bus bar moving device 600 is disposed between the power supply and distribution trunk line 105 and the branch line 106.
The bus bar moving device 600 includes a first switch and a second switch.
The first switch includes: a moving contact 101 and a stationary contact 102, and the second switch includes: a moving contact 103 and a stationary contact 104. Each branch 106 is connected to the power supply and distribution trunk 105 through a mobile safety isolation structure of the power supply and distribution system, or a plurality of branches 106 are connected to the power supply and distribution trunk 105 through a mobile safety isolation structure of the power supply and distribution system.
After the bus moving device 600 is removed, no matter what state the bus is, the branch line 106 is not electrified, and the emergency repair operation and maintenance of the branch line 106 are ensured.
In order to achieve better prevention of misoperation, the movable contacts 101 and 103 are driven by a driving structure.
For example, the driving structure includes a key lock structure, and the movable contact 101 and the movable contact 103 are connected to a lock cylinder of the key lock structure and driven by a key matched with the lock cylinder.
In this embodiment, the first switch and the second switch are directly connected by a bus CO.
When the movable contacts 101 and 103 are drawn out from the fixed contacts 102 and 104, respectively, under the operation of the special tool, the circuit breaker moving device 400, the fuse moving device 500, and the bus moving device 600 separate the power supply and distribution trunk 105 and the branch 106. At the moment, no matter what states of the breaker A, the fuse BO and the bus CO are, the power supply and distribution trunk line 105 cannot be connected with the branch line 106, and the branch line 106 cannot be powered all the time, so that personal safety electric shock accidents caused by misoperation of a breaker switch, the fuse and a disconnecting link are avoided, and the safe isolation between the power supply and distribution trunk line 105 and the branch line 106 is really realized.
In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.
The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.
Claims (6)
1. A mobile safety isolation structure for power supply and distribution systems, characterized by comprising, in series between a power supply and distribution trunk (105) and a branch (106): a first switch and a second switch;
the first switch includes: a moving contact (101) and a fixed contact (102);
the second switch includes: a moving contact (103) and a fixed contact (104);
wherein each branch line (106) is connected with the power supply and distribution trunk line (105) through a mobile safety isolation structure of the power supply and distribution system, or a plurality of branch lines (106) are connected with the power supply and distribution trunk line (105) through a mobile safety isolation structure of the power supply and distribution system.
2. The mobile safety isolation structure of a power supply and distribution system according to claim 1, wherein the movable contact (101) and the movable contact (103) are driven by a driving structure.
3. The mobile safety isolation structure of a power supply and distribution system of claim 2, wherein the drive structure comprises a key lock structure;
the moving contact (101) and the moving contact (103) are connected to a lock cylinder of the key lock structure and driven by a key matched with the lock cylinder.
4. The mobile safety isolation structure of a power supply and distribution system of claim 1, wherein a circuit breaker is further connected in series between the first switch and the second switch.
5. The mobile safety isolation structure of a power supply and distribution system of claim 1, wherein a fuse is further connected in series between the first switch and the second switch.
6. The mobile safety isolation structure of power supply and distribution system of claim 1, wherein the first switch and the second switch are directly connected by a bus bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010459291.6A CN111628413A (en) | 2020-05-20 | 2020-05-20 | Movable safety isolation structure of power supply and distribution system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010459291.6A CN111628413A (en) | 2020-05-20 | 2020-05-20 | Movable safety isolation structure of power supply and distribution system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111628413A true CN111628413A (en) | 2020-09-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010459291.6A Pending CN111628413A (en) | 2020-05-20 | 2020-05-20 | Movable safety isolation structure of power supply and distribution system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111628413A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3991348A (en) * | 1975-04-01 | 1976-11-09 | S & C Electric Company | Apparatus for controlling access to high voltage metal-enclosed switchgear |
| JPH01255409A (en) * | 1988-04-04 | 1989-10-12 | Toshiba Corp | Gas insulated switchgear |
| KR20050080447A (en) * | 2005-06-22 | 2005-08-12 | (주)서전기전 | Module assembly typed low-voltage distributing board |
| CN200997496Y (en) * | 2006-08-09 | 2007-12-26 | 长春红星电器设备厂 | Movable high-voltage switching closet with shunt |
| WO2008004776A1 (en) * | 2006-07-06 | 2008-01-10 | Kwon, Byoung Seok | Module type power distribution apparatus |
| CN101483322A (en) * | 2008-11-07 | 2009-07-15 | 安徽中安恒宇电气传动有限公司 | Armored withdraw type metal enclosed switch cabinet |
| CN101557083A (en) * | 2009-01-20 | 2009-10-14 | 上海合凯电力保护设备有限公司 | Handcart-type switch arc suppression device |
| CN201623393U (en) * | 2009-11-10 | 2010-11-03 | 上海众飞电力设备有限公司 | Removable arc and resonance suppression device |
| TWM475014U (en) * | 2013-11-01 | 2014-03-21 | Hwa Shih Electric Ind Co Ltd | Rotary cut-off safety lock for no fuse circuit breaker circuit maintenance |
| JP2017099276A (en) * | 2017-01-04 | 2017-06-01 | テンパール工業株式会社 | Removing structure for circuit breaker |
-
2020
- 2020-05-20 CN CN202010459291.6A patent/CN111628413A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3991348A (en) * | 1975-04-01 | 1976-11-09 | S & C Electric Company | Apparatus for controlling access to high voltage metal-enclosed switchgear |
| JPH01255409A (en) * | 1988-04-04 | 1989-10-12 | Toshiba Corp | Gas insulated switchgear |
| KR20050080447A (en) * | 2005-06-22 | 2005-08-12 | (주)서전기전 | Module assembly typed low-voltage distributing board |
| WO2008004776A1 (en) * | 2006-07-06 | 2008-01-10 | Kwon, Byoung Seok | Module type power distribution apparatus |
| CN200997496Y (en) * | 2006-08-09 | 2007-12-26 | 长春红星电器设备厂 | Movable high-voltage switching closet with shunt |
| CN101483322A (en) * | 2008-11-07 | 2009-07-15 | 安徽中安恒宇电气传动有限公司 | Armored withdraw type metal enclosed switch cabinet |
| CN101557083A (en) * | 2009-01-20 | 2009-10-14 | 上海合凯电力保护设备有限公司 | Handcart-type switch arc suppression device |
| CN201623393U (en) * | 2009-11-10 | 2010-11-03 | 上海众飞电力设备有限公司 | Removable arc and resonance suppression device |
| TWM475014U (en) * | 2013-11-01 | 2014-03-21 | Hwa Shih Electric Ind Co Ltd | Rotary cut-off safety lock for no fuse circuit breaker circuit maintenance |
| JP2017099276A (en) * | 2017-01-04 | 2017-06-01 | テンパール工業株式会社 | Removing structure for circuit breaker |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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Application publication date: 20200904 |