CN105140791A - Connection type ring main unit structure - Google Patents
Connection type ring main unit structure Download PDFInfo
- Publication number
- CN105140791A CN105140791A CN201510567146.9A CN201510567146A CN105140791A CN 105140791 A CN105140791 A CN 105140791A CN 201510567146 A CN201510567146 A CN 201510567146A CN 105140791 A CN105140791 A CN 105140791A
- Authority
- CN
- China
- Prior art keywords
- load switch
- bypass
- distribution line
- connecting port
- main unit
- 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
Abstract
The invention relates to the technical field of line maintenance, particularly to a connection type ring main unit structure. The connection type ring main unit structure includes a cabinet body, the cabinet body is internally provided with a busbar chamber, load switches connected with bypass connection ports, load switches connected with distribution network lines, earthing switches, an instrument chamber and an operating mechanism, an outer wall of the cabinet body is provided with a separator plate locking mechanism, the separator plate locking mechanism is arranged corresponding to the load switches connected with the bypass connection ports and the load switches connected with the distribution network lines, a busbar in the busbar chamber is electrically connected with the load switches connected with the bypass connection ports and the load switches connected with the distribution network lines, and the load switches connected with the bypass connection ports and the load switches connected with the distribution network lines are electrically connected to the earthing switches. By adoption of such structural arrangement, flow of bypass operation is effectively reduced, power outage time is shortened, and a locking operation mode is adopted, thereby increasing safety of an operation process.
Description
Technical field
The present invention relates to line maintenance technical field, refer in particular to a kind of overlap-connected ring main unit structure.
Background technology
Along with urbanization paces are accelerated, the application of cable in urban distribution network is also further extensive, because cable line fault has paroxysmal feature, once fault will cause regional power failure, brings very large impact to power supply reliability and good service work.How fast processing is carried out to failure cable, restore electricity as early as possible and become electric company of basic unit demand urgent at present.In order to solve the problem, Chinese patent CN102403779A discloses a kind of bypass uninterrupted operation electric power system, described bypass power supply cable builds temporary transmission circuit by fast insert-pull T connector, fast insert-pull transition joint, bypass cable, cross-over connection Awaiting Overhaul and fault wire section, operated by on-load switch, make former circuit and by-pass line parallel running, then disconnect former line power, the service work under making client enter power down mode under the state do not had a power failure or have a power failure in short-term.But this operating process need be carried out load separating brake, contact of earth, unlatching casing, insert the sequence of operations such as fast insert-pull T connector ring main unit, then carries out corresponding actions to bypass load-switch, and operation is too complicated, bothers very much.
Summary of the invention
For above problem, the invention provides a kind of overlap-connected ring main unit structure, it reduces the flow process of bypass operation by equipment connection modes, shortens interruption duration, and adopts lock operation mode, increases the fail safe of operating process.
To achieve these goals, the technical solution used in the present invention is as follows:
A kind of overlap-connected ring main unit structure, comprise cabinet, bus-bar room is provided with in cabinet, connect the on-load switch of bypass connecting port, connect the on-load switch of distribution line, earthed switch, control room and operating mechanism, cabinet outer wall is provided with dividing plate blocking mechanism, dividing plate blocking mechanism is arranged with the on-load switch connecting bypass connecting port is corresponding with the on-load switch connecting distribution line respectively, the bus of bus-bar room is electrically connected on the on-load switch and the on-load switch being connected distribution line that connect bypass connecting port, the on-load switch connecting bypass connecting port is electrically connected on earthed switch with the on-load switch being connected distribution line.
According to above scheme, described dividing plate blocking mechanism is provided with stainless steel separator and bypass cable and plugs into jack, the on-load switch connecting bypass connecting port is connected to bypass cable by bypass cable jack of plugging into, and the on-load switch connecting distribution line is connected to distribution cable by bypass cable jack of plugging into.
According to above scheme, the on-load switch of described connection bypass connecting port is fuse combined electric apparatus with the on-load switch being connected distribution line.
According to above scheme, upper inner chamber and lower inner cavity is become by baffle for separating in described cabinet, bus-bar room and control room are located at inner chamber on cabinet, connect the on-load switch of bypass connecting port, the on-load switch connecting distribution line, earthed switch and operating mechanism and are located at cabinet lower inner cavity.
According to above scheme, described dividing plate is provided with interface, and the bus of bus-bar room is electrically connected on the on-load switch and the on-load switch being connected distribution line that connect bypass connecting port by interface.
According to above scheme, described cabinet outer wall is also provided with charged display and cabinet intraoral illumination button.
Beneficial effect of the present invention:
1, the present invention is connected to the on-load switch of connection bypass connecting port and the on-load switch being connected distribution line by utilizing the earthed switch in cabinet, the on-load switch connecting bypass connecting port is electrically connected on bus and the bypass cable of bus-bar room, connect bus and distribution cable that the on-load switch of distribution line is electrically connected on bus-bar room, thus realize not having a power failure or interruption maintenance in short-term of distribution cable;
2, the present invention is provided with stainless steel separator and bypass cable and plugs into jack on dividing plate blocking mechanism, utilizes corrosion resistant plate to isolate, and inserting after bypass cable joint can operational load switch connection bus and bypass cable, effectively avoids mispluging pulling out;
3, the present invention has shovel to reduce the flow process of bypass operation, shortens interruption duration, and adopts lock operation mode, increase the fail safe of operating process.
Accompanying drawing explanation
Fig. 1 is overall structure figure of the present invention;
Fig. 2 is the on-load switch combined floodgate schematic diagram that the present invention connects bypass connecting port;
Fig. 3 is the on-load switch combined floodgate schematic diagram that the present invention connects distribution line.
1, bus-bar room; 2, the on-load switch of bypass connecting port is connected; 3, the on-load switch of distribution line is connected; 4, earthed switch; 5, control room; 6, operating mechanism; 7, dividing plate blocking mechanism; 8, cabinet intraoral illumination button; 9, dividing plate; 10, cabinet.
Embodiment
Below in conjunction with accompanying drawing and embodiment, technical scheme of the present invention is described.
As shown in Figure 1, the overlap-connected ring main unit structure of one of the present invention, comprise cabinet 10, bus-bar room 1 is provided with in cabinet 10, connect the on-load switch 2 of bypass connecting port, connect the on-load switch 3 of distribution line, earthed switch 4, control room 5 and operating mechanism 6, cabinet 10 outer wall is provided with dividing plate blocking mechanism 7, dividing plate blocking mechanism 7 is arranged with the on-load switch 2 connecting bypass connecting port is corresponding with the on-load switch 3 connecting distribution line respectively, the bus of bus-bar room 1 is electrically connected on the on-load switch 2 and the on-load switch 3 being connected distribution line that connect bypass connecting port, the on-load switch 2 connecting bypass connecting port is electrically connected on earthed switch 4 with the on-load switch 3 being connected distribution line.
The above forms basic structure of the present invention.
The on-load switch 2 of connection bypass connecting port of the present invention, the on-load switch 3 connecting distribution line, earthed switch 4 all adopt PLC to control.
As shown in Figure 2, the 2-in-1 lock of on-load switch of connection bypass connecting port of the present invention has three grades of lockings, when dividing plate blocking mechanism 7 be in plug into state time, open first order locking, a-signal is in high level, after earthed switch 4 closes a floodgate, open second level locking, B signal is in high level, when earthed switch 4 is in gate-dividing state, open third level locking, C signal is in high level, when A/B/C tri-road signal is all in high level, is now operatively connected the 2-in-1 lock of on-load switch of bypass connecting port; On-load switch 2 separating brake connecting bypass connecting port has one-level locking, during earthed switch 4 gate-dividing state, opens locking, is now operatively connected on-load switch 2 separating brake of bypass connecting port.
As shown in Figure 3, the on-load switch 3 of connection distribution line of the present invention closes a floodgate and has secondary locking, first order locking is opened after earthed switch 4 closes a floodgate, B signal is in high level, when earthed switch 4 is in gate-dividing state, open second level locking, C signal is in high level, when B/C bis-road signal is all in high level, the on-load switch 3 being now operatively connected distribution line closes a floodgate, on-load switch 3 separating brake connecting distribution line has one-level locking, when earthed switch 4 is in gate-dividing state, open locking, now be operatively connected on-load switch 3 separating brake of distribution line.
Earthed switch 4 of the present invention is when the on-load switch 2 connecting bypass connecting port is all in gate-dividing state with the on-load switch 3 being connected distribution line, and side can carry out separating brake and closing operation.
Operation principle of the present invention: when Quick overhaul operation will be carried out, first bypass operation cable is inserted to dividing plate blocking mechanism 7, sub-switching operation is carried out to the on-load switch 3 connecting distribution line, earthed switch 4 closes a floodgate, and then separating brake, on-load switch 2 locking now connecting bypass connecting port is all opened, and can carry out closing operation, transfer a load onto on bypass cable, the service work of distribution network cable can be carried out.
More specifically, described dividing plate blocking mechanism 7 is provided with stainless steel separator and bypass cable and plugs into jack, the on-load switch 2 connecting bypass connecting port is connected to bypass cable by bypass cable jack of plugging into, and the on-load switch 3 connecting distribution line is connected to distribution cable by bypass cable jack of plugging into.
More specifically, the on-load switch 2 of described connection bypass connecting port is fuse combined electric apparatus with the on-load switch 3 being connected distribution line.
More specifically, upper inner chamber and lower inner cavity is separated into by dividing plate 9 in described cabinet 10, bus-bar room 1 and control room 5 are located at inner chamber on cabinet 10, connect the on-load switch 2 of bypass connecting port, the on-load switch 3 connecting distribution line, earthed switch 4 and operating mechanism 6 and are located at cabinet 10 lower inner cavity.
More specifically, described dividing plate 9 is provided with interface, and the bus of bus-bar room 1 is electrically connected on the on-load switch 2 and the on-load switch 3 being connected distribution line that connect bypass connecting port by interface.
More specifically, described cabinet 10 outer wall is also provided with charged display and cabinet intraoral illumination button 8.Adopt such vibrational power flow, easy access.
Be more than the present invention's preferably execution mode, those skilled in the art in the invention can also change above-mentioned execution mode and revise.Therefore, the present invention is not limited to above-mentioned embodiment, and any apparent improvement that every those skilled in the art do on basis of the present invention, replacement or modification all belong to protection scope of the present invention.
Claims (6)
1. an overlap-connected ring main unit structure, comprise cabinet (10), it is characterized in that: in described cabinet (10), be provided with bus-bar room (1), connect the on-load switch (2) of bypass connecting port, connect the on-load switch (3) of distribution line, earthed switch (4), control room (5) and operating mechanism (6), described cabinet (10) outer wall is provided with dividing plate blocking mechanism (7), described dividing plate blocking mechanism (7) respectively with connect the on-load switch (2) of bypass connecting port and connect that the on-load switch (3) of distribution line is corresponding to be arranged, the bus of described bus-bar room (1) is electrically connected on the on-load switch (2) and the on-load switch (3) being connected distribution line that connect bypass connecting port, the on-load switch (2) of described connection bypass connecting port is electrically connected on earthed switch (4) with the on-load switch (3) being connected distribution line.
2. a kind of overlap-connected ring main unit structure according to claim 1, it is characterized in that: described dividing plate blocking mechanism (7) is provided with stainless steel separator and bypass cable and plugs into jack, the on-load switch (2) of described connection bypass connecting port is connected to bypass cable by bypass cable jack of plugging into, and the on-load switch (3) of described connection distribution line is connected to distribution cable by bypass cable jack of plugging into.
3. a kind of overlap-connected ring main unit structure according to claim 1, is characterized in that: the on-load switch (2) of described connection bypass connecting port is fuse combined electric apparatus with the on-load switch (3) being connected distribution line.
4. a kind of overlap-connected ring main unit structure according to claim 1, it is characterized in that: in described cabinet (10), be separated into inner chamber and lower inner cavity by dividing plate (9), described bus-bar room (1) and control room (5) are located at the upper inner chamber of cabinet (10), and the on-load switch (2) of described connection bypass connecting port, the on-load switch (3) connecting distribution line, earthed switch (4) are located at cabinet (10) lower inner cavity with operating mechanism (6).
5. a kind of overlap-connected ring main unit structure according to claim 4, it is characterized in that: described dividing plate (9) is provided with interface, the bus of described bus-bar room (1) is electrically connected on the on-load switch (2) and the on-load switch (3) being connected distribution line that connect bypass connecting port by interface.
6. a kind of overlap-connected ring main unit structure according to claim 1, is characterized in that: described cabinet (10) outer wall is also provided with charged display and cabinet intraoral illumination button (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510567146.9A CN105140791B (en) | 2015-09-08 | 2015-09-08 | A kind of overlap-connected looped network cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510567146.9A CN105140791B (en) | 2015-09-08 | 2015-09-08 | A kind of overlap-connected looped network cabinet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105140791A true CN105140791A (en) | 2015-12-09 |
| CN105140791B CN105140791B (en) | 2018-03-16 |
Family
ID=54726054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510567146.9A Active CN105140791B (en) | 2015-09-08 | 2015-09-08 | A kind of overlap-connected looped network cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105140791B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2646915Y (en) * | 2003-09-02 | 2004-10-06 | 上海丰凯电气设备有限公司 | Sulfur hexafluoride ring main unit with visible isolation fracture |
| KR20040092600A (en) * | 2003-04-24 | 2004-11-04 | 엘지산전 주식회사 | Toggle type earthing switch of ring main unit |
| CN201113291Y (en) * | 2007-06-15 | 2008-09-10 | 北京电研华源电力技术有限公司 | Outdoor common box type sulfur hexafluoride multi-loop ring net cabinet |
| CN201994571U (en) * | 2010-12-29 | 2011-09-28 | 福建森源电力设备有限公司 | Combined type integral structure of ring main unit |
| CN103036149A (en) * | 2012-12-28 | 2013-04-10 | 上海市电力公司 | Non-power-outage operated bypass connection device used between two European-style ring main units |
| CN204947362U (en) * | 2015-09-08 | 2016-01-06 | 云南电网有限责任公司昭通供电局 | A kind of overlap-connected ring main unit structure |
-
2015
- 2015-09-08 CN CN201510567146.9A patent/CN105140791B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040092600A (en) * | 2003-04-24 | 2004-11-04 | 엘지산전 주식회사 | Toggle type earthing switch of ring main unit |
| CN2646915Y (en) * | 2003-09-02 | 2004-10-06 | 上海丰凯电气设备有限公司 | Sulfur hexafluoride ring main unit with visible isolation fracture |
| CN201113291Y (en) * | 2007-06-15 | 2008-09-10 | 北京电研华源电力技术有限公司 | Outdoor common box type sulfur hexafluoride multi-loop ring net cabinet |
| CN201994571U (en) * | 2010-12-29 | 2011-09-28 | 福建森源电力设备有限公司 | Combined type integral structure of ring main unit |
| CN103036149A (en) * | 2012-12-28 | 2013-04-10 | 上海市电力公司 | Non-power-outage operated bypass connection device used between two European-style ring main units |
| CN204947362U (en) * | 2015-09-08 | 2016-01-06 | 云南电网有限责任公司昭通供电局 | A kind of overlap-connected ring main unit structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105140791B (en) | 2018-03-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204179552U (en) | Intelligent ring main unit | |
| CN104333118A (en) | Spare power automatic switching system with self-adaptive switching intermediate resistance grounding mode, and operation method thereof | |
| CN107294073B (en) | Control protection system of hybrid topology direct current circuit breaker | |
| CN103078268A (en) | Uninterrupted power overhauling method of 10kV cables between two annular net cabinets | |
| CN103236362A (en) | PLC-based (programmable logic controller-based) knife switch control method and system | |
| CN101246783B (en) | Intelligent locking method of outdoor looped network cabinet wire spacing ground switch | |
| CN105633917A (en) | Unified power flow controller-based fault processing method and system | |
| CN201789272U (en) | Relay protection circuit preventing transformer differential protection malfunction | |
| CN204947362U (en) | A kind of overlap-connected ring main unit structure | |
| CN108923524A (en) | A kind of off-line UPS power control system | |
| CN107769162A (en) | Generator protection tripgear based on 3/2 wiring condition power plant | |
| CN203086118U (en) | 10kV cable network feeder automation device | |
| CN105140791A (en) | Connection type ring main unit structure | |
| CN110556794B (en) | Bus bar protection configuration method of multi-end hybrid direct current system | |
| CN205610208U (en) | Fault handling system based on unified power flow controller | |
| CN201860172U (en) | Automatic looped network type distribution network based on reclosers | |
| CN209448232U (en) | A kind of controller switching equipment and distribution system | |
| CN208706465U (en) | A kind of universal change-over switch with aviation plug | |
| CN201877879U (en) | Dual-power supply device for large-scale control system | |
| CN205195050U (en) | Cubical switchboard of reliable power supply | |
| CN105098646B (en) | A kind of indoor intelligence 10kV demarcation circuit breaker switchgears with communication function | |
| CN110165658A (en) | Optical-fibre channel stand-by heat route in-put of spare power supply method based on main transformer control | |
| CN204858514U (en) | Conventional circuit -breaker from power transmission device | |
| CN203014181U (en) | Expandable looped network cabinet unit capable of not interrupting power supply at single side | |
| CN214411647U (en) | 0.4kV cable quick access device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |