CN203014181U - Expandable looped network cabinet unit capable of not interrupting power supply at single side - Google Patents
Expandable looped network cabinet unit capable of not interrupting power supply at single side Download PDFInfo
- Publication number
- CN203014181U CN203014181U CN 201320017036 CN201320017036U CN203014181U CN 203014181 U CN203014181 U CN 203014181U CN 201320017036 CN201320017036 CN 201320017036 CN 201320017036 U CN201320017036 U CN 201320017036U CN 203014181 U CN203014181 U CN 203014181U
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- China
- Prior art keywords
- bus
- power supply
- looped network
- expanded
- network cabinet
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- Expired - Lifetime
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Abstract
The utility model relates to an expandable looped network cabinet unit capable of not interrupting power supply at a single side. The expandable looped network cabinet unit is applied to distribution lines which have realized looped network power supply, and has the characteristics of full seal, full insulation, expandability and the like. The looped network cabinet is internally provided with a base bus, a bus to be expanded and a three-position switch, wherein the bus to be expanded is arranged at the other end of the base bus through the three-position switch, the bus to be expanded is connected with a moving contact of the three-position switch, and a static contact of the three-position switch is connected with the base bus. When electrical cabinets are put together, the three-position switch is powered off and the moving contact is struck to a grounding position through switching operation under the condition of not interrupting the power supply, the bus to be expanded and an outgoing line side of the looped network cabinet are ensured not to be electrified and ensured to be grounded reliably, and the electrical cabinets are put together by connecting a bus of the looped network cabinet required to be expanded with the bus to be expanded. Under the condition of an existing distribution network, the expandable looped network cabinet unit provided by the utility model can improve the reliability of power supply, save the investment cost of the distribution network, and provide a high voltage power supply for an emergency bypass operating vehicle.
Description
Technical field
The utility model relates to a kind of switchgear, refers in particular to a kind of one-sided uninterrupted power supply expandable type ring main unit unit.
Background technology
As shown in Figure 1, current ring main unit is all the unit that only has simple function, and operating ring main unit must have a power failure when expansion could spell the cabinet operation.Power failure operation must increase amount when having a power failure, and is unfavorable for the raising of reliability index.According to statistics, the needed interruption duration of spelling cabinet construction that has a power failure accounts for 7% of total interruption duration, and causes that along with ring main unit uses more widely with other conditions in the continuous situation about reducing of time of power failure, its proportion will rise year by year.Therefore, need a kind of uninterrupted power supply of exploitation can expand the novel expandable type ring main unit of spelling the cabinet operation.
According to existing distribution planning, generally all need to reserve 4-6 face distribution reserve tank of the same type at power distribution room, so that industry expansion or net change in engineering and use afterwards, will cause the larger wasting of resources like this.
10kV (20kV) emergency bypass Operation Van is difficult to access 10kV (20kV) high voltage source at power distribution room when operation, certainly will increase difficulty for operation.
Existing power distribution room area and shape vary, and power distribution cabinet of a great variety must be developed a kind of novel one-sided uninterrupted power supply expandable type ring main unit unit and could be satisfied current demand.
Summary of the invention
The purpose of this utility model is to provide a kind of one-sided uninterrupted power supply expandable type ring main unit unit, and it can overcome the deficiencies in the prior art, can not interrupt normal power supply when carrying out one-sided spelling cabinet operation; Can adapt to existing power distribution room area and shape varies, miscellaneous situation of power distribution cabinet; And do not need to reserve distribution reserve tank, escapable cost; And can be 10kV (20kV) emergency bypass Operation Van high voltage source easily is provided.
The purpose of this utility model is achieved in that
A kind of one-sided uninterrupted power supply expandable type ring main unit unit, it is characterized in that, be provided with basic bus, one section in it and treat expansion bus and a three-station, treat that expansion bus is located at the other end of basic bus by three-station, treat that expansion bus is connected with the three-station moving contact, the fixed contact of three-station is connected with basic bus.Do not connect any switch on the bus of basis, basic bus plays the effect that is connected with other conventional buses.
Preferably, described three-station is three-stations load switch.
Preferably, describedly treat that the outer end of expansion bus is provided with sleeve pipe, and adopt the sealing of insulation plug.
Preferably, the outer end of described basic bus is provided with sleeve pipe, and adopts the sealing of insulation plug.
One-sided uninterrupted power supply expandable type ring main unit unit is one-sided treats that the outer tube of expansion bus seals with the insulation plug, confirm that the moving contact of this ring main unit three-station beats after earthing position, take the outer tube insulator seal plug for the treatment of expansion bus apart, then complete the expansion operation.
The utility model compared with prior art has following beneficial effect:
1, one-sided uninterrupted power supply expandable type ring main unit unit possesses looped network function and bus section function simultaneously.
2, three-stations load switch is not only as the ring-main unit switch while but also as busbar sectional izing switch.
3, can carry out the ring main unit expansion under the uninterrupted power supply condition, power supply reliability is improved approximately 7%, need to not reserve again 4-6 face power distribution cabinet at power distribution station, optimized distribution planning, material cost, construction cost and maintenance cost have been saved to greatest extent, avoid the wasting of resources, greatly improved the flexibility that in the power distribution room, distribution net equipment is arranged and the retractility in space.
4, be applicable to existing power distribution room area and shape varies, miscellaneous present situation of power distribution cabinet.Make the switch of all various combinations all indirectly have the extendible function of uninterrupted power supply.
5, can be used as the emergent comprehensive bypass operation overall height voltage source " socket " of 10kV (20kV), solve its temporary source and access problem, provide more power supply selection scheme for protecting power supply, having solved in the past, power distribution room can't provide for protecting the emergent comprehensive operation vehicle of power supply the difficult problem of power supply.
Description of drawings
Fig. 1 is the circuit diagram after the expansion of prior art ring main unit;
Fig. 2 is the circuit diagram before the one-sided uninterrupted power supply expandable type of the utility model ring main unit unit extensions;
Fig. 3 is the circuit diagram in the one-sided uninterrupted power supply expandable type of the utility model ring main unit unit extensions;
Fig. 4 is the circuit diagram after the one-sided uninterrupted power supply expandable type of the utility model ring main unit unit extensions;
Fig. 5 is the one-sided uninterrupted power supply expandable type ring main unit of the utility model unit as the circuit diagram of the power supply " socket " of 10kV (20kV) emergency bypass Operation Van.
Embodiment
As shown in Figure 2 to Figure 3, the one-sided uninterrupted power supply expandable type ring main unit of the utility model unit, be provided with basic bus 11, one section in it and treat expansion bus 12 and three-station 13, treat expansion bus 12 by three-station 13 be located at basic bus 11 the other end, treat that expansion bus 12 is connected with the moving contact of three-station 13, the fixed contact of three-station 13 is connected with basic bus 11.Three-station 13 also is provided with ground connection station 17.Do not connect any switch on the bus of basis, basic bus plays the effect that is connected with other conventional buses.Before installation, the outer end of basic bus is provided with sleeve pipe, and adopts the sealing of insulation plug.Not only can be connected different switch combinations according to the operation needs and connect in this one-sided uninterrupted power supply expandable type ring main unit unit with same model, also can by the different switch combinations connections of excessive cabinet from other models, have larger adaptability and flexibility.
When spelling the cabinet operation; pass through grid switching operation; in the situation that uninterrupted power supply; three-station 13 is had a power failure and moving contact is beaten at earthing position; that guarantees that ring main unit treats the extension side treats all not charged and reliable grounds of expansion bus and outgoing line side; take the outer tube insulator seal plug for the treatment of expansion bus apart, then complete the expansion operation.In this preferred embodiment, described three-station 13 is three-stations load switch.
For ease of expanding new ring main unit, describedly treat that the outer end of expansion bus 12 is provided with sleeve pipe, and adopt the sealing of insulation plug.
Described one-sided uninterrupted power supply expandable type ring main unit unit can be seen a line unit cabinet with bus section function as, so its operation is consistent with common three-stations load switch, five anti-functions are also identical with existing equipment, just when it also holds concurrently as extension cabinet as outlet, must confirm especially line end and treat that expansion bus is not charged before splice grafting ground, pass switch, perhaps can configure the generation that live locking earthing function is stopped this possibility misoperation.
On-the-spot expansion practical operation is divided into two kinds of situations and considers: one, the expansion practical operation situation when uninterrupted power supply expandable type ring main unit unit during as reserve tank; Its two, the expansion practical operation situation when uninterrupted power supply expandable type ring main unit unit as outgoing line cabinet (charged).
One, the expansion practical operation situation when uninterrupted power supply expandable type ring main unit unit during as reserve tank
When 1) normally moving, one-sidedly treat that expansion bus is not charged, this reserve tank treat the expansion bus outer tube with the sealing of insulation plug, 13 dozens of reserve tank three-stations are at earthing position.
2) when expansion, confirming that 13 dozens of reserve tank ring main unit three-stations after earthing position, take apart and originally treat expansion bus outer tube insulator seal plug, newly-increased bus and newly-increased switch cubicle and cable are installed.
3) with 13 dozens of reserve tank three-stations at open position, connect testing equipment, new clothes equipment is carried out major loop resistance and insulation resistance test.Withstand voltage test and cable testing can also first carried out separately before cabinet.
4) test complete after, the reserve tank three-station 13 that closes, then power transmission one by one, whole expansion project is complete.
Its two, the expansion practical operation situation when uninterrupted power supply expandable type ring main unit unit as outgoing line cabinet (charged)
When 1) normally moving, all switches all are in closing position, three-station 13 also is in "on" position, and described ring main unit front sleeve pipe cable outlet is charged, and the one-sided outer tube for the treatment of expansion bus 12 is with insulation plug sealing (operational mode as shown in Figure 2).
2) before the expansion, first separate this ring main unit load switch 13, and the other end on-load switch of outlet cable separately, confirmation without electricity after, with 13 dozens of three-stations at earthing position, take apart and treat extension side bus outer tube insulator seal plug, newly-increased bus and newly-increased switch cubicle and outlet cable (operational mode as shown in Figure 3) are installed.
3) with 13 dozens of three-stations at open position, connect testing equipment, new clothes equipment is carried out major loop resistance and insulation resistance test.Withstand voltage test and cable testing can also first carried out separately before cabinet.
4) test complete after, by grid switching operation, recover original operational mode, the three-station 13 that closes, then power transmission one by one, whole expansion project complete (operational mode is as shown in Figure 4).
As shown in Figure 5, they can also be as emergent comprehensive bypass operation car 15 power supplys " socket " of 10kV.But interim ring main unit 16 can be connected with the extension side of one-sided uninterrupted power supply, has the uninterrupted power supply extendable functions, provides high voltage source easily for the emergent comprehensive bypass operation car of 10kV (20kV) carries out various operations.
The above embodiment has only expressed several execution mode of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.Should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection range of patent of the present invention should be as the criterion with claims.
Claims (4)
1. one-sided uninterrupted power supply expandable type ring main unit unit, it is characterized in that, be provided with basic bus, one section in it and treat expansion bus and a three-station, treat that expansion bus is located at the other end of basic bus by three-station, treat that expansion bus is connected with the three-station moving contact, the fixed contact of three-station is connected with described basic bus.
2. one-sided uninterrupted power supply expandable type ring main unit according to claim 1 unit, is characterized in that, described three-station is three-stations load switch.
3. one-sided uninterrupted power supply expandable type ring main unit according to claim 1 unit, is characterized in that, describedly treats that the outer end of expansion bus is provided with sleeve pipe, and adopt the sealing of insulation plug.
4. one-sided uninterrupted power supply expandable type ring main unit according to claim 1 unit, is characterized in that, the outer end of described basic bus is provided with sleeve pipe, and adopt the sealing of insulation plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320017036 CN203014181U (en) | 2012-12-28 | 2013-01-11 | Expandable looped network cabinet unit capable of not interrupting power supply at single side |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220740453 | 2012-12-28 | ||
| CN201220740453.4 | 2012-12-28 | ||
| CN 201320017036 CN203014181U (en) | 2012-12-28 | 2013-01-11 | Expandable looped network cabinet unit capable of not interrupting power supply at single side |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203014181U true CN203014181U (en) | 2013-06-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320017036 Expired - Lifetime CN203014181U (en) | 2012-12-28 | 2013-01-11 | Expandable looped network cabinet unit capable of not interrupting power supply at single side |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203014181U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103066504A (en) * | 2012-12-28 | 2013-04-24 | 广州供电局有限公司 | One-side no-break power supply extendable type ring main unit |
-
2013
- 2013-01-11 CN CN 201320017036 patent/CN203014181U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103066504A (en) * | 2012-12-28 | 2013-04-24 | 广州供电局有限公司 | One-side no-break power supply extendable type ring main unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: ORMAZABAL Y CiA, S.L.U. Assignor: GUANGZHOU POWER SUPPLY Co.,Ltd. Contract record no.: 2015440000565 Denomination of utility model: One-side no-break power supply extendable type ring main unit Granted publication date: 20130619 License type: Exclusive License Record date: 20150817 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200921 Address after: 510620 Tianhe District, Guangzhou, Tianhe South Road, No. two, No. 2, No. Patentee after: Guangzhou Power Supply Bureau of Guangdong Power Grid Co.,Ltd. Address before: 510620 Tianhe District, Guangzhou, Tianhe South Road, No. two, No. 2, No. Patentee before: GUANGZHOU POWER SUPPLY Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130619 |
|
| CX01 | Expiry of patent term |