CN107464707A - A kind of protection blocking mechanism for high-voltage ring main unit - Google Patents
A kind of protection blocking mechanism for high-voltage ring main unit Download PDFInfo
- Publication number
- CN107464707A CN107464707A CN201610383992.XA CN201610383992A CN107464707A CN 107464707 A CN107464707 A CN 107464707A CN 201610383992 A CN201610383992 A CN 201610383992A CN 107464707 A CN107464707 A CN 107464707A
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- CN
- China
- Prior art keywords
- breaker
- main unit
- connecting rod
- ring main
- voltage ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/22—Interlocking, locking, or latching mechanisms for interlocking between casing, cover, or protective shutter and mechanism for operating contacts
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention discloses a kind of protection blocking mechanism for high-voltage ring main unit, it is characterized in that：Include connecting rod and the chain connecting lever of breaker, wherein connecting rod is in and is longitudinally arranged, and is inserted into guide, and the chain connecting lever of breaker is arranged on the power transmission shaft of the pull operation mechanism of high-voltage ring main unit inner breaker；The upper end of connecting rod and the swinging end of the chain connecting lever of breaker are hinged, and the lower end of connecting rod is fixed with baffle plate, and baffle plate is corresponding with the isolator operation hole being arranged on high-voltage ring main unit door-plate；Stage clip is set with connecting rod, and is provided with spacer pin；The stage clip is arranged between spacer pin and guide；The present invention is simple in construction, ingenious in design, realizes and is protected between isolating-switch locking protection and mistakenly entering into charged isolation, it is ensured that the personal safety of operating personnel and the normal operation of distribution system, is widely used in the switch cubicle type such as fixed switching cabinet, high-voltage metering cubicle.
Description
Technical field
The present invention relates to a kind of blocking mechanism, especially a kind of protection blocking mechanism for high-voltage ring main unit.
Background technology
High-voltage ring main unit is to improve power supply reliability, user is obtained power supply in terms of two, is generally circularized power supply network connection, this power supply mode abbreviation ring network power supply.At present, high-voltage ring main unit is widely used in the distribution system that industrial and mining enterprises, residential quarters, harbour and skyscraper etc. exchange 10KV.
Breaker and disconnecting switch are equipped with high-voltage ring main unit, wherein breaker is closed a floodgate and separating brake by pull operation mechanism actuating, the combined floodgate of disconnecting switch is entered in cabinet with separating brake using operation handle from the isolator operation hole on high-voltage ring main unit door-plate, is realized by the operating shaft of disconnecting switch operation.In general, disconnecting switch is not provided with arc-control device, arc-control device is provided with breaker.For safe distribution of electric power, in transmission line of electricity transmission or not, it is necessary to draw in order, close disconnecting switch, concrete operations are as follows：When carrying out power failure operation, it is necessary to first break breaker, post-tensioning broken string trackside disconnecting switch, then draw bus bar side disconnecting switch, power transmission operation order is opposite with power failure operation order.
But, found during actual use, in high-voltage ring main unit, it is not provided with protecting blocking mechanism between breaker and disconnecting switch, and also it is not provided with interlocking gear between breaker and the cabinet door of high-voltage ring main unit, because breaker is when in "on" position, disconnecting switch can not carry out separating brake, so operating personnel are in the case of unwitting, either disconnecting switch operation, or the cabinet door for opening high-voltage ring main unit carries out other electric operations, all will be extremely dangerous, and will bring significant impact to the normal operation of distribution system.
The content of the invention
It is an object of the invention to provide a kind of protection blocking mechanism for high-voltage ring main unit, during for ensuring that high-voltage ring main unit inner breaker is in "on" position, disconnecting switch can not carry out sub-switching operation, cabinet door can not be opened, and ensure that the personal safety of operating personnel and the normal operation of distribution system.
The present invention concrete scheme be：A kind of protection blocking mechanism for high-voltage ring main unit, it is characterized in that：Include connecting rod and the chain connecting lever of breaker, wherein connecting rod is in and is longitudinally arranged, and is inserted into guide, and the chain connecting lever of breaker is arranged on the power transmission shaft of the pull operation mechanism of high-voltage ring main unit inner breaker；The upper end of connecting rod and the swinging end of the chain connecting lever of breaker are hinged, and the lower end of connecting rod is fixed with baffle plate, and baffle plate is corresponding with the isolator operation hole being arranged on high-voltage ring main unit door-plate；Stage clip is set with connecting rod, and is provided with spacer pin；The stage clip is arranged between spacer pin and guide.
Heretofore described connecting rod is fixedly connected with one end of connector, and the other end of connector is fixed with the lockweight being longitudinally arranged, and latch plate is provided with the back side of high-voltage ring main unit door-plate, obturator hernia is offered in latch plate, obturator hernia is with lockweight in axially corresponding.
The operation principle of the present invention is as follows：
When carrying out power transmission to transmission line of electricity by high-voltage ring main unit, first operation handle is stretched in cabinet from the isolator operation hole on high-voltage ring main unit door-plate, the combined floodgate of disconnecting switch is realized by the operating shaft of disconnecting switch operation；Then, the combined floodgate of breaker is realized by mechanically or electrically moving the pull operation mechanism of control breaker, so as to complete the operation of the power transmission of power network.When the pull operation mechanism of breaker carries out closing operation to breaker, the power transmission shaft rotating band of pull operation mechanism moves the chain connecting lever of breaker and rotated counterclockwise, extended downwardly from so as to press connecting rod, while connecting rod extends downwardly from, stage clip is driven to enter compressive state, baffle plate extends downwardly from blocking from the back side of the cabinet door of high-voltage ring main unit by isolator operation hole, and such operating personnel cannot realize the sub-switching operation to disconnecting switch；At the same time, connecting rod also drives lockweight to extend downwardly into the obturator hernia of latch plate by connector, chain so as to be realized to cabinet door, and the cabinet door that operating personnel can not open high-voltage ring main unit again carries out other electric operations.
When being had a power failure by high-voltage ring main unit to transmission line of electricity, first, the separating brake of breaker is realized by mechanically or electrically moving the pull operation mechanism of control breaker, breaker is while separating brake is carried out, the power transmission shaft rotating band of pull operation mechanism moves the chain connecting lever of breaker and rotated clockwise, so as to which drivening rod moves upwards, wherein stage clip is due to reinstatement and the chain connecting lever drivening rod of auxiliary circuit breaker goes upward to setting position, and then baffle plate is driven to be separated with isolator operation hole, lockweight separates with latch plate, chain between breaker and disconnecting switch and cabinet door releases, thus sub-switching operation can be carried out to disconnecting switch again, and open cabinet door and carry out other electric operations.
The present invention is simple in construction, ingenious in design, in high-voltage ring main unit inner breaker when in "on" position, it ensure that disconnecting switch can not carry out sub-switching operation, now cabinet door can not be opened, it is achieved thereby that protected between isolating-switch locking protection and mistakenly entering into charged isolation, the personal safety of operating personnel and the normal operation of distribution system are ensure that, is widely used in the switch cubicle type such as fixed switching cabinet, high-voltage metering cubicle.
Brief description of the drawings
Fig. 1 is that the present invention is in structural representation when closing a floodgate in breaker；
Fig. 2 is structural representation of the present invention when breaker is in separating brake
Fig. 3 is mounting structure schematic diagram of the present invention in high-voltage ring main unit.
In figure：1-connecting rod, the chain connecting lever of 2-breaker, 3-guide, 4-cabinet, 5-breaker, 6-power transmission shaft, 7-baffle plate, 8-cabinet door, 9-isolator operation hole, 10-stage clip, 11-spacer pin, 12-connector, 13-lockweight, 14-latch plate, 15-disconnecting switch, 16-operating shaft, 17-operation handle.
Embodiment
Referring to Fig. 1, Fig. 2, the present invention includes connecting rod 1 and the chain connecting lever 2 of breaker, wherein connecting rod 1 is in and is longitudinally arranged, and the top and bottom of connecting rod 1 are each inserted into a guide 3, guide 3 is made up of a fixed plate and one or two the horizontally-guided plate being welded in fixed plate, the pilot hole to match with connecting rod 1 is offered on guide plate, the fixed plate of guide 3 is fixedly connected with high-voltage ring main unit；The chain connecting lever 2 of breaker is arranged on the power transmission shaft 6 of the pull operation mechanism of the breaker 5 in the cabinet 4 of high-voltage ring main unit；The swinging end of the upper end connecting lever 2 chain with breaker of the connecting rod 1 is hinged, the lower end of connecting rod 1 is fixed with baffle plate 7, baffle plate 7 is corresponding with the isolator operation hole 9 in the cabinet door 8 for being arranged on high-voltage ring main unit, disconnecting switch 15 is wherein also equipped with the cabinet 4 of high-voltage ring main unit, the operating shaft 16 of disconnecting switch 15 is corresponding in axial direction with isolator operation hole 9；Two stage clips 10 are set with connecting rod 1, and connecting rod 1 is provided with the spacer pin 11 of corresponding each stage clip 10；The stage clip 10 is arranged between spacer pin 11 and guide 3.
Connecting rod 1 described in the present embodiment is fixedly connected with one end of connector 12, the other end of connector 12 is fixed with the lockweight 13 being longitudinally arranged, latch plate 14 is provided with the back side of the cabinet door 8 of high-voltage ring main unit, obturator hernia is offered in latch plate 14, obturator hernia is with lockweight 13 in axially corresponding.
Installation site of the present invention in the cabinet 4 of high-voltage ring main unit is as shown in figure 3, concrete operating principle is as follows：
When carrying out power transmission to transmission line of electricity by high-voltage ring main unit, first operation handle 17 is stretched in cabinet 4 from the isolator operation hole 9 in the cabinet door 8 of high-voltage ring main unit, the combined floodgate of disconnecting switch is realized by the operating shaft 16 of disconnecting switch operation 15；Then, the combined floodgate of breaker is realized by mechanically or electrically moving the pull operation mechanism of control breaker, so as to complete the operation of the power transmission of power network.When the pull operation mechanism by breaker carries out closing operation to breaker 5, the rotating band of power transmission shaft 6 of pull operation mechanism moves the chain connecting lever 2 of breaker to rotate counterclockwise, extended downwardly from so as to press connecting rod 1, while connecting rod 1 extends downwardly from, stage clip 10 is driven to enter compressive state, and baffle plate 7 extends downwardly from blocking isolator operation hole 9 from the back side of the cabinet door 8 of high-voltage ring main unit, it is achieved thereby that isolating-switch locking protects, so operating personnel cannot realize the sub-switching operation to disconnecting switch 15, avoid operating personnel because of maloperation and caused by personal injury；At the same time, connecting rod 1 also drives lockweight 13 to extend downwardly into the obturator hernia of latch plate 14 by connector 12, and chain so as to be realized to cabinet door 8, the cabinet door 8 that operating personnel can not open high-voltage ring main unit again carries out other electric operations, it is achieved thereby that protected between mistakenly entering into charged isolation, referring to Fig. 1.
When being had a power failure by high-voltage ring main unit to transmission line of electricity, first, the separating brake of breaker is realized by mechanically or electrically moving the pull operation mechanism of control breaker, breaker 5 is while separating brake is carried out, the rotating band of power transmission shaft 6 of pull operation mechanism moves the chain connecting lever 2 of breaker to rotate clockwise, so as to which drivening rod 1 moves upwards, wherein stage clip 10 is due to that will restore to the original state and the chain drivening rod 1 of connecting lever 2 of auxiliary circuit breaker goes upward to setting position, and then baffle plate 7 is driven to be separated with isolator operation hole 9, lockweight 13 separates with latch plate 14, chain between breaker 5 and disconnecting switch 15 and cabinet door 8 releases, thus sub-switching operation can be carried out to disconnecting switch 15 again, and open cabinet door 8 and carry out other electric operations, referring to Fig. 2.
Claims (2)
1. a kind of protection blocking mechanism for high-voltage ring main unit, it is characterized in that：Include connecting rod and the chain connecting lever of breaker, wherein connecting rod is in and is longitudinally arranged, and is inserted into guide, and the chain connecting lever of breaker is arranged on the power transmission shaft of the pull operation mechanism of high-voltage ring main unit inner breaker；The upper end of connecting rod and the swinging end of the chain connecting lever of breaker are hinged, and the lower end of connecting rod is fixed with baffle plate, and baffle plate is corresponding with the isolator operation hole being arranged on high-voltage ring main unit door-plate；Stage clip is set with connecting rod, and is provided with spacer pin；The stage clip is arranged between spacer pin and guide.
2. a kind of protection blocking mechanism for high-voltage ring main unit according to claim 1, it is characterized in that：The connecting rod is fixedly connected with one end of connector, and the other end of connector is fixed with the lockweight being longitudinally arranged, and latch plate is provided with the back side of high-voltage ring main unit door-plate, obturator hernia is offered in latch plate, obturator hernia is with lockweight in axially corresponding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610383992.XA CN107464707A (en) | 2016-06-02 | 2016-06-02 | A kind of protection blocking mechanism for high-voltage ring main unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610383992.XA CN107464707A (en) | 2016-06-02 | 2016-06-02 | A kind of protection blocking mechanism for high-voltage ring main unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107464707A true CN107464707A (en) | 2017-12-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610383992.XA Pending CN107464707A (en) | 2016-06-02 | 2016-06-02 | A kind of protection blocking mechanism for high-voltage ring main unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107464707A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108711534A (en) * | 2018-05-28 | 2018-10-26 | 福建中能电气有限公司 | The interlocking mechanism of permanent-magnet breaker |
| CN113675777A (en) * | 2021-08-23 | 2021-11-19 | 江山市鑫源电气有限公司 | Intelligent locking anti-misoperation device and anti-misoperation ring main unit |
| CN117116683A (en) * | 2023-10-23 | 2023-11-24 | 合肥优尔电子科技有限公司 | A fortune detects test device for joining in marriage net equipment |
-
2016
- 2016-06-02 CN CN201610383992.XA patent/CN107464707A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108711534A (en) * | 2018-05-28 | 2018-10-26 | 福建中能电气有限公司 | The interlocking mechanism of permanent-magnet breaker |
| CN113675777A (en) * | 2021-08-23 | 2021-11-19 | 江山市鑫源电气有限公司 | Intelligent locking anti-misoperation device and anti-misoperation ring main unit |
| CN113675777B (en) * | 2021-08-23 | 2023-09-12 | 江山市鑫源电气有限公司 | Intelligent locking error-preventing device and error-preventing ring main unit |
| CN117116683A (en) * | 2023-10-23 | 2023-11-24 | 合肥优尔电子科技有限公司 | A fortune detects test device for joining in marriage net equipment |
| CN117116683B (en) * | 2023-10-23 | 2024-01-12 | 合肥优尔电子科技有限公司 | A fortune detects test device for joining in marriage net equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20171212 |
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| WD01 | Invention patent application deemed withdrawn after publication |