CN102946101A - Single-power-supply ring network power supply system - Google Patents
Single-power-supply ring network power supply system Download PDFInfo
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- CN102946101A CN102946101A CN201210463155XA CN201210463155A CN102946101A CN 102946101 A CN102946101 A CN 102946101A CN 201210463155X A CN201210463155X A CN 201210463155XA CN 201210463155 A CN201210463155 A CN 201210463155A CN 102946101 A CN102946101 A CN 102946101A
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Abstract
The invention discloses a single-power-supply ring network power supply system and relates to the technical field of a residential electricity consumption power supply system. A power cord is connected with a power supply bus of a cable distribution box; an outgoing line end in the cable distribution box is connected with a ring network switch in a first box transformer with the ring network switch; the first box transformer with the ring network switch to the Nth box transformer with the ring network switch are sequentially connected in series; and the Nth box transformer with the ring network switch is connected with the other outgoing line end in the cable distribution box, and N is a natural number which is more than 1. According to the system, a ring network power supply manner is formed by a plurality of the box transformers with the ring network switch through single-power-supply power supply; the operation is very flexible; when any one box transformer with the ring network switch and a connection cable have faults, the box transformer and the connection cable can be removed and the power supply of other transformers is not influenced; the influence range is small when the power is off and a complicated construction process is not needed; and the maintenance is convenient and the fault recovering time is short.
Description
Technical field
The present invention relates to residential electricity consumption electric power system technical field, relate in particular to a kind of single supply ring network power supply system.
Background technology
Nowadays along with the development in city, increase sharply in residential quarters, and power supply reliability is an extremely important problem.The supply power mode that adopts in electric power system mainly contains two kinds: emanant and looped network formula.Adopting the radiation supply power mode is a kind of habitual way, so the conventional residential quarter power supply emanant power supply of high-power transformer, the modes of less employing ring network power supply of adopting more.
The advantage of emanant power supply is that wiring is simple, power supply reliability is high, relaying protection is simple and operation is simple.Shortcoming is when adopting cable laying for total system, when cable breaks down relatively difficulty find the fault point, repair time is long, it is long to affect the normal electricity consumption time; In addition, the switch cubicle of relative usage is many, and the cable consumption is many and high-tension switch cabinet quantity is many, and expense is higher.
When emanant power supply was used in residential quarters, the single transformer supply district was large, will cause large-area power-cuts when main equipment breaks down, and equipment fault is long repair time, brings great inconvenience to residential electricity consumption.
Summary of the invention
Technical problem to be solved by this invention provides a kind of single supply ring network power supply system, when any transformer in the described system breaks down, can keep in repair it at once and do not affect the use of other transformer, power failure range is little, and is easy to maintenance.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of single supply ring network power supply system, it is characterized in that power line connects the power source bus of cable distribution box, a leading-out terminal in the cable distribution box connects first with the loop networks switch in the case change of looped network switch by stube cable, the first case with the looped network switch fades to N and becomes with the case of looped network switch and be connected in series successively, N becomes with another leading-out terminal in the cable distribution box with the case of looped network switch and is connected, and N is the natural number greater than 1.
Preferably: the two ends of stube cable are provided with cable joint.
Preferably: the case change with the looped network switch has five.
The beneficial effect that adopts technique scheme to produce is: described system forms the looped network powering mode with the flexible single power supply of crossing of a plurality of casees with the looped network switch, move very flexible, when the transformer in any case with the looped network switch becomes or stube cable break down, can be at once with its excision, do not affect other transformer-supplied, the power failure coverage is little, does not need complicated construction technology, easy to maintenance, failure recovery time is short.In addition, when described system adopted cable laying, cable broke down than being easier to find the fault point, and recovery time is short, and it is short to affect the normal electricity consumption time, and cable is relative with the high-tension switch cabinet consumption less, and cost is relatively low.
Description of drawings
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
Fig. 1 is theory diagram of the present invention;
Wherein: 1, power line 2, cable distribution box 3, power source bus 4, leading-out terminal 5, stube cable 6, the first case change 7, loop networks switch 8, cable joint with the looped network switch.
Embodiment
As shown in Figure 1, a kind of single supply ring network power supply system, power line 1 connects the power source bus 3 of cable distribution box 2, a leading-out terminal 4 in the cable distribution box 2 connects first with the loop networks switch 7 in the case change 6 of looped network switch by stube cable 5, the first case with the looped network switch becomes 6 to the N casees changes with the looped network switch and is connected in series successively, N becomes with another leading-out terminal in the cable distribution box 2 with the case of looped network switch and is connected, and N is the natural number greater than 1, and the value of N is made according to actual conditions.For easy-to-connect is provided with cable joint 8 at the two ends of stube cable 5.
Described system forms the looped network powering mode with the flexible single power supply of crossing of a plurality of casees with the looped network switch, move very flexible, when any transformer or stube cable break down, the loop networks switch that only needs to disconnect in its two adjacent casees changes can keep in repair it, do not affect other transformer-supplied, the power failure coverage is little, and is easy to maintenance, and failure recovery time is short.In addition, when described system adopted cable laying, cable broke down than being easier to find the fault point, and recovery time is short, and it is short to affect the normal electricity consumption time, and cable is relative with the high-tension switch cabinet consumption less, and manufacturing cost is relatively low.
Used specific case herein principle of the present invention and execution mode thereof are set forth, the explanation of above embodiment is just with helping understand method of the present invention and core concept thereof.Should be pointed out that for the person of ordinary skill of the art, can also carry out some improvement and modification to the present invention under the prerequisite that does not break away from the principle of the invention, these improvement and modification also fall in the protection range of claim of the present invention.
Claims (3)
1. single supply ring network power supply system, it is characterized in that power line (1) connects the power source bus (3) of cable distribution box (2), leading-out terminal (4) in the cable distribution box (2) connects first with the loop networks switch (7) in the case change (6) of looped network switch by stube cable (5), first becomes (6) with the case of looped network switch becomes with the case of looped network switch to N and is connected in series successively, N becomes with another leading-out terminal in the cable distribution box (2) with the case of looped network switch and is connected, and N is the natural number greater than 1.
2. a kind of single supply ring network power supply according to claim 1 system is characterized in that the two ends of stube cable (5) are provided with cable joint (8).
3. a kind of single supply ring network power supply according to claim 1 system is characterized in that case with the looped network switch becomes and has five.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210463155XA CN102946101A (en) | 2012-11-16 | 2012-11-16 | Single-power-supply ring network power supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210463155XA CN102946101A (en) | 2012-11-16 | 2012-11-16 | Single-power-supply ring network power supply system |
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| Publication Number | Publication Date |
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| CN102946101A true CN102946101A (en) | 2013-02-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210463155XA Pending CN102946101A (en) | 2012-11-16 | 2012-11-16 | Single-power-supply ring network power supply system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105790240A (en) * | 2016-04-22 | 2016-07-20 | 国网天津市电力公司 | Single power supply ring network-based fault processing and supplementing method |
| CN105896494A (en) * | 2016-04-22 | 2016-08-24 | 国网天津市电力公司 | Complementary method for handling fault in power distribution network based on power guarantee mode |
| CN107450360A (en) * | 2017-08-01 | 2017-12-08 | 江西清华泰豪三波电机有限公司 | Improve positive pole, negative pole and positive pole and the control system of negative pole line conduction reliability |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US5963457A (en) * | 1994-03-18 | 1999-10-05 | Hitachi, Ltd. | Electrical power distribution monitoring system and method |
| CN101005214A (en) * | 2006-12-12 | 2007-07-25 | 广东电网公司江门供电局 | Electric grid system and method for resolving electric grid large area power cut |
| CN101442193A (en) * | 2008-08-29 | 2009-05-27 | 广东吉熙安电缆附件有限公司 | 10kV looped network type double power supply self-casting power cable tapping-off case |
| CN201797311U (en) * | 2010-06-11 | 2011-04-13 | 中铁电气化勘测设计研究院有限公司 | Intelligent protective loop architecture system of power supply looped network |
| CN202888832U (en) * | 2012-11-16 | 2013-04-17 | 沧州供电公司 | Single-power ring network power supply system |
-
2012
- 2012-11-16 CN CN201210463155XA patent/CN102946101A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5963457A (en) * | 1994-03-18 | 1999-10-05 | Hitachi, Ltd. | Electrical power distribution monitoring system and method |
| CN101005214A (en) * | 2006-12-12 | 2007-07-25 | 广东电网公司江门供电局 | Electric grid system and method for resolving electric grid large area power cut |
| CN101442193A (en) * | 2008-08-29 | 2009-05-27 | 广东吉熙安电缆附件有限公司 | 10kV looped network type double power supply self-casting power cable tapping-off case |
| CN201797311U (en) * | 2010-06-11 | 2011-04-13 | 中铁电气化勘测设计研究院有限公司 | Intelligent protective loop architecture system of power supply looped network |
| CN202888832U (en) * | 2012-11-16 | 2013-04-17 | 沧州供电公司 | Single-power ring network power supply system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105790240A (en) * | 2016-04-22 | 2016-07-20 | 国网天津市电力公司 | Single power supply ring network-based fault processing and supplementing method |
| CN105896494A (en) * | 2016-04-22 | 2016-08-24 | 国网天津市电力公司 | Complementary method for handling fault in power distribution network based on power guarantee mode |
| CN107450360A (en) * | 2017-08-01 | 2017-12-08 | 江西清华泰豪三波电机有限公司 | Improve positive pole, negative pole and positive pole and the control system of negative pole line conduction reliability |
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| C06 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 061001 No. 21 West Yongji Road, Hebei, Cangzhou Applicant after: Cangzhou Power Supply Branch Company, State Grid Hebei Electric Power Company Applicant after: State Grid Corporation of China Applicant after: State Grid Hebei Electric Power Company Address before: 061001 No. 21 West Yongji Road, Hebei, Cangzhou Applicant before: Cangzhou Power Supply Co.,Ltd. Applicant before: State Grid Corporation of China Applicant before: Hebei Electric Power Corporation |
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| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: CANGZHOU POWER SUPPLY CO., LTD. TO: CANGZHOU POWER SUPPLY BRANCH COMPANY,STATE GRID HEBEI ELECTRIC POWER COMPANY |
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Application publication date: 20130227 |