CN105185665A - Intelligent residual current reclosing circuit breaker - Google Patents
Intelligent residual current reclosing circuit breaker Download PDFInfo
- Publication number
- CN105185665A CN105185665A CN201510560045.9A CN201510560045A CN105185665A CN 105185665 A CN105185665 A CN 105185665A CN 201510560045 A CN201510560045 A CN 201510560045A CN 105185665 A CN105185665 A CN 105185665A
- Authority
- CN
- China
- Prior art keywords
- connects
- zero
- conductive
- circuit breaker
- residual current
- 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
Links
- 239000004020 conductor Substances 0.000 claims abstract description 16
- 230000003068 static effect Effects 0.000 abstract 2
- 230000005611 electricity Effects 0.000 description 4
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/08—Terminals; Connections
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
- H01H83/14—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by imbalance of two or more currents or voltages, e.g. for differential protection
Landscapes
- Breakers (AREA)
Abstract
The invention discloses an intelligent residual current reclosing circuit breaker. An electromotor (10), four conductive static contacts (2) and a zero-sequence mutual inductor (11) are arranged in a shell (13) of the intelligent residual current reclosing circuit breaker, external circuits A, B, C and N are respectively connected with the four static contacts (2), the electromotor (10) is connected with a gear assembly (9), the gear assembly (9) is connected with a connection rod assembly (8), the connection rod assembly (8) is connected with a handle (5), the handle (5) is connected with four conductive movable contacts (3), each conductive movable contact (3) is connected with a conductive conductor (7), each conductive conductor (7) is connected with an output terminal (12), the zero-sequence mutual inductor (11) is arranged next to the four conductive conductors (7), the conductive movable contacts (3) are connected with a spring (4), the spring (4) is connected with a tripper (6), and an intelligent control panel (1) is connected with the zero-sequence mutual inductor (11), the electromotor (10) and the tripper (6) respectively. The intelligent residual current reclosing circuit breaker has the advantages of small volume, a compact structure, high breaking capability and switching safety, and the reliability is improved.
Description
Technical field:
The present invention relates to a kind of intelligent residual current reclosing breaker, belong to power industry low-voltage supply line technical field.
Background technology:
National grid clear stipulaties adopts residual current circuit breaker in 400V low-voltage circuit, as the measure of indirect protection person electrical shock safety.When there being electric leakage in circuit, the automatic disjunction protection of circuit breaker.
For ensureing residential electricity consumption, the transformation platform district that look for novelty carries out dual transformer and powers, and the capacity of every platform transformer can meet the electricity consumption in whole district.But two transformers, from two 10KV power supplys, are equipped with double-power supply switching device between two step down sides.Usually, every platform transformer is operated in halfload state, improves operational reliability, and the further dilatation in Ye Weitai district leaves the backup surplus of restructuring.Once there be a transformer lines to break down power failure, double-power supply switching device, automatically by the load of power failure transformer, is transferred in the output loop of intact transformer, ensures platform district safe power supply.
But, the intelligent leakage circuit breaker adopted on the market at present point, close a floodgate time, only divide A/B/C tri-live wires, closing operation, the zero line N of input and output is in UNICOM's state always.In the low-voltage platform area circuit adopting Dual-power automatic switching, because zero line N does not cut off, easily produce temporary over-current, damage intelligent leakage circuit breaker, cause power supply area to have a power failure.
Summary of the invention:
The object of the invention is to overcome the deficiency of above-mentioned prior art and provide a kind of volume little, compact conformation, breaking capacity is strong, handover security, the intelligent residual current reclosing breaker that reliability improves.
Object of the present invention can be reached by following measure: a kind of intelligent residual current reclosing breaker, it comprises shell, it is characterized in that being provided with motor in shell, four conduction fixed contacts, zero-sequence transformer, outside line A, B, C, N connects four fixed contacts respectively, motor connects gear assembly, gear assembly connects link assembly, link assembly connects handle, handle connects four conductive moving contacts, each conductive moving contact all connects an electric conductor, each electric conductor all connects a lead-out terminal, zero-sequence transformer is located at four electric conductor sides, conductive moving contact linking springs, spring connects release, Intelligent control board connects zero-sequence transformer respectively, motor, release.
The present invention can produce following good effect compared with the prior art: the present invention original only point, close A/B/C tri-live wires, change that zero line N and A/B/C three live wires divide together, closing operation into, adopt in the low-voltage platform area circuit of Dual-power automatic switching and adopt this intelligent leakage circuit breaker, temporary over-current can not be produced, handover security, reliability improves, the fault caused when can effectively avoid duplicate supply to switch.
Accompanying drawing illustrates:
Fig. 1 is structural representation of the present invention;
Fig. 2 is cross sectional side view of the present invention;
Fig. 3 is electrical schematic diagram of the present invention.
Embodiment: the specific embodiment of the present invention is elaborated below in conjunction with accompanying drawing:
Embodiment: a kind of intelligent residual current reclosing breaker (see Fig. 1-Fig. 3), it comprises shell 13, motor 10 is provided with in shell 13, four conduction fixed contacts 2, zero-sequence transformer 11, outside line A, B, C, N accesses four fixed contacts 2 of circuit breaker respectively, motor 10 connects gear assembly 9, gear assembly 9 connects link assembly 8, link assembly 8 connects handle 5, handle 5 connects four conductive moving contacts 3, each conductive moving contact 3 all connects an electric conductor 7, each electric conductor 7 all connects a lead-out terminal 12, zero-sequence transformer 11 is located at four electric conductor 7 sides, conductive moving contact 3 linking springs 4, spring 4 connects release 6 Intelligent control board 1 and connects zero-sequence transformer 11 respectively, motor 10, release 6.
Outside line A, B, C, N access four fixed contacts 2 of circuit breaker respectively; when after breaker closing; four fixed contacts 2 are connected with four moving contacts 3 respectively; by three-phase four-wire power A, B, C, N of outside line; by four fixed contacts 2, be connected respectively to four moving contacts 3, then be connected respectively to electric conductor 7; be connected respectively to lead-out terminal 12, provide the three-phase and four-line 380V power supply with creepage protection function to outside line.Zero-sequence transformer 11 is arranged on four electric conductor 7 sides, is obtained the electric leakage signal of outlet line, provide line electrical leakage criterion to Intelligent control board 1 by electromagnetic induction.
Basic functional principle:
Intelligent control board 1, by detecting the electric leakage data of zero-sequence transformer 11, when outlet line does not leak electricity, export control signal to rotate to motor 10, by gear assembly 9, drivening rod assembly 8 promotes handle 5 and travels forward, and compressing conductive moving contact 3 closes with conduction fixed contact 2.Circuit breaker is in closure state, and the electric current in incoming line is by conducting electricity fixed contact 2, conductive moving contact 3, electric conductor 7, lead-out terminal 12, supply load.
When Intelligent control board 1, by detect zero-sequence transformer 11 obtain in circuit have electric leakage data time, export control signal power up to release 6; spring 4 is rebounded, and conductive moving contact 3 is separated with conduction fixed contact 2, breaker open operation; lead-out terminal 12 no-voltage electric current exports, and plays leakage protection.
The present invention is four groups can add electric conductor by disjunction conductive contact, realizes zero line N and A/B/C three live wires of input and zero line N and A/B/C three live wires controlled point, closing operation simultaneously of output.
Claims (1)
1. an intelligent residual current reclosing breaker, it comprises shell (13), it is characterized in that being provided with motor (10) in shell (13), four conductions fixed contact (2), zero-sequence transformer (11), outside line A, B, C, N connects four fixed contacts (2) respectively, motor (10) connects gear assembly (9), gear assembly (9) connects link assembly (8), link assembly (8) connects handle (5), handle (5) connects four conductive moving contacts (3), each conductive moving contact (3) all connects an electric conductor (7), each electric conductor (7) all connects a lead-out terminal (12), , zero-sequence transformer (11) is located at four electric conductor (7) sides, conductive moving contact (3) linking springs (4), spring (4) connects release (6), Intelligent control board (1) connects zero-sequence transformer (11) respectively, motor (10), release (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510560045.9A CN105185665A (en) | 2015-09-07 | 2015-09-07 | Intelligent residual current reclosing circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510560045.9A CN105185665A (en) | 2015-09-07 | 2015-09-07 | Intelligent residual current reclosing circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105185665A true CN105185665A (en) | 2015-12-23 |
Family
ID=54907675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510560045.9A Pending CN105185665A (en) | 2015-09-07 | 2015-09-07 | Intelligent residual current reclosing circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105185665A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107622921A (en) * | 2016-07-13 | 2018-01-23 | 上海置信电气股份有限公司 | A kind of reclosing breaker |
| CN111044896A (en) * | 2019-12-23 | 2020-04-21 | 云南恒协科技有限公司 | Strut type circuit breaker on-line monitoring system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080136567A1 (en) * | 2006-12-12 | 2008-06-12 | Schneider Electric Industries Sas | Auxiliary device and data transmission method, auxiliary unit and electrical circuit breaker comprising said device |
| JP2010009919A (en) * | 2008-06-26 | 2010-01-14 | Mitsubishi Electric Corp | Earth leakage breaker |
| CN202502967U (en) * | 2011-11-28 | 2012-10-24 | 太原斯利德电子技术有限公司 | Residual current breaker |
| CN203134736U (en) * | 2013-03-25 | 2013-08-14 | 浙江西屋电气有限公司 | Automatic reclosing residual current motion protection breaker |
| CN203260542U (en) * | 2013-05-30 | 2013-10-30 | 浙江诚通电力科技有限公司 | Residual current operated circuit breaker |
| CN204885052U (en) * | 2015-09-07 | 2015-12-16 | 国网山东烟台市福山区供电公司 | Intelligence residual current recloses circuit breaker |
-
2015
- 2015-09-07 CN CN201510560045.9A patent/CN105185665A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080136567A1 (en) * | 2006-12-12 | 2008-06-12 | Schneider Electric Industries Sas | Auxiliary device and data transmission method, auxiliary unit and electrical circuit breaker comprising said device |
| JP2010009919A (en) * | 2008-06-26 | 2010-01-14 | Mitsubishi Electric Corp | Earth leakage breaker |
| CN202502967U (en) * | 2011-11-28 | 2012-10-24 | 太原斯利德电子技术有限公司 | Residual current breaker |
| CN203134736U (en) * | 2013-03-25 | 2013-08-14 | 浙江西屋电气有限公司 | Automatic reclosing residual current motion protection breaker |
| CN203260542U (en) * | 2013-05-30 | 2013-10-30 | 浙江诚通电力科技有限公司 | Residual current operated circuit breaker |
| CN204885052U (en) * | 2015-09-07 | 2015-12-16 | 国网山东烟台市福山区供电公司 | Intelligence residual current recloses circuit breaker |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107622921A (en) * | 2016-07-13 | 2018-01-23 | 上海置信电气股份有限公司 | A kind of reclosing breaker |
| CN111044896A (en) * | 2019-12-23 | 2020-04-21 | 云南恒协科技有限公司 | Strut type circuit breaker on-line monitoring system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151223 |