CN105185665A - Intelligent residual current reclosing circuit breaker - Google Patents

Intelligent residual current reclosing circuit breaker Download PDF

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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
Application number
CN201510560045.9A
Other languages
Chinese (zh)
Inventor
陈志刚
姜全红
刘春晓
姜晓妍
朱豪
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fushan District Yantai City Guo Wang Shandong Electric Co
State Grid Corp of China SGCC
Yantai Power Supply Co of State Grid Shandong Electric Power Co Ltd
Original Assignee
Fushan District Yantai City Guo Wang Shandong Electric Co
State Grid Corp of China SGCC
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fushan District Yantai City Guo Wang Shandong Electric Co, State Grid Corp of China SGCC filed Critical Fushan District Yantai City Guo Wang Shandong Electric Co
Priority to CN201510560045.9A priority Critical patent/CN105185665A/en
Publication of CN105185665A publication Critical patent/CN105185665A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/08Terminals; Connections
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/14Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by unbalance of two or more currents or voltages, e.g. for differential protection

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

A kind of intelligent residual current reclosing breaker
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).
CN201510560045.9A 2015-09-07 2015-09-07 Intelligent residual current reclosing circuit breaker Pending CN105185665A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (6)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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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C10 Entry into substantive examination
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WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20151223

WD01 Invention patent application deemed withdrawn after publication