CN102347177A - Method for operating thermomagnetic circuit breaker - Google Patents
Method for operating thermomagnetic circuit breaker Download PDFInfo
- Publication number
- CN102347177A CN102347177A CN2011102774304A CN201110277430A CN102347177A CN 102347177 A CN102347177 A CN 102347177A CN 2011102774304 A CN2011102774304 A CN 2011102774304A CN 201110277430 A CN201110277430 A CN 201110277430A CN 102347177 A CN102347177 A CN 102347177A
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- circuit breaker
- arc
- electric arc
- static contact
- short
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- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000010891 electric arc Methods 0.000 claims abstract description 21
- 230000003068 static effect Effects 0.000 claims abstract description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 11
- 230000008033 biological extinction Effects 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000002679 ablation Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
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Abstract
The invention relates to a method for operating a thermomagnetic circuit breaker. In the normal operation, a moveable contact and a static contact are closed; when overload takes place, double metal elements facilitate the clockwise rotation of a lock catch in an operating mechanism, and the lock catch is lifted out by a traction rod; a circuit breaker allows the disconnection between the moveable contact and the static contact with the aid of a spring of the operating mechanism; when a short circuit takes place or the tripping operation of the circuit breaker is about to be controlled in a long distance, an overload releaser or an armature of an electromagnetic system at the right side in a short circuit electromagnet system is sucked down by an iron core to release the lock catch; when a negative voltage is generated, the armature is released, and a lock catch rod is also lifted out; under the fault conditions above, the disconnection of the circuit breaker is released freely; when various faults take place, the moveable contact and the static contact are opened, and a strong electric arc is produced between the contacts; a ferruginous grid piece in an arc extinguish chamber is magnetized to generate a suction force, and the electric arc is sucked to the arc extinguish chamber and divided into short arcs; and the electric arc is cooled by utilizing the ferruginous grid piece, so that the resistance and the voltage of the electric arc are increased and the electric arc is finally extinguished. The safety of the circuit can be ensured, and the service life of the circuit can be prolonged.
Description
Technical field
The present invention relates to a kind of method of work of pyromagnetic type circuit breaker.
Background technology
Continuous development along with national economy; Electric network composition and part throttle characteristics are complicated day by day; Be connected the sensitiveness electric loading of electric power system simultaneously; Very easily receive influence from electric power system disturbance in short-term; Like the phenomenon that electric voltage dropping and voltage jump, this has just proposed strict further requirement for the quality of power supply and operational reliability.Therefore need to adopt the method for protective circuit.
Summary of the invention
The technical problem that the present invention will solve provides a kind of method of work of pyromagnetic type circuit breaker of simple in structure, long service life.
For solving the problems of the technologies described above, the present invention adopts following technical scheme: just often, dynamic and static contact closure, when transshipping, bimetallic element clockwise rotates the snap close in the operating mechanism, backs down snap close by draw bar; Circuit breaker allows dynamic/static contact break off under the operating mechanism spring action; When being short-circuited or wanting the far distance controlled circuit breaker trip, the armature of the electromagnetic system on right side breaks off relations snap close under being inhaled by iron core in overload release or the short circuit electromagnet system, when under voltage takes place; Armature discharges, and also backs down locking-bar, and under the above failure condition, the disjunction of circuit breaker all is a trip free;
When various fault occurring, dynamic and static contact is opened, and produces strong electric arc between the contact; Irony grid sheet in the arc control device is magnetized, and produces suction, and electric arc is inhaled to arc control device, and electric arc is divided into short arc; Utilize of the cooling of iron railings sheet, to improve arc resistance and arc voltage, arc extinction the most at last to electric arc.
Further, said overload release is that bimetallic element or stream are pressed release.
The method of work of pyromagnetic type circuit breaker of the present invention because the fuser belt arc control device, can be blown out electric arc, reduces the ablation of electric arc to switch contact, the arc overvoltage when arc extinguishing has also been avoided line switching takes place fast simultaneously and infringement equipment.It can guarantee the safety of circuit, can increase its useful life simultaneously.
Description of drawings
Fig. 1 is the sketch map of the pyromagnetic type circuit breaker of the present invention.
Embodiment
In the present embodiment, as shown in Figure 1, the method for work of this pyromagnetic type circuit breaker, circuit breaker is with making a match, during parallel circuit, relying on and pull its handle (or through external rotating handle) or adopt the motor operating mechanism to make dynamic and static contact 2 closed or disconnections.Under normal circumstances, contact can be connected and the disjunction rated current; When overload (overload) occurring; Bimetallic element is heated, and (or through conduction, radiation or the bimetallic element of its heater element heating nearby connects with heater element heating power) generation is out of shape, bending; Snap close is broken off relations; Bump, the draw bar (release lever) of top circuit breaker; Circuit breaker trip; Like circuit (or motor) short circuit, then the short circuit current of certain value can make overcurrent trip (electromagnet) moving iron core (armature) by adhesive, drive draw bar and make the circuit breaker disjunction.When circuit under voltage, under-voltage release 5 occurred and is lower than 70% rated voltage at voltage, its armature discharged, and touched draw bar; Want the tripping operation of far distance controlled circuit breaker, can adopt shunt release, during the shunt release energising, its armature is moved draw bar by adhesive counterclockwise, and circuit breaker breaks off.
Operation principle: just often, dynamic and static contact 2 closures, when transshipping, bimetallic element clockwise rotates the snap close 3 in the operating mechanism, backs down snap close by draw bar; Circuit breaker allows dynamic/static contact 2 break off under 1 effect of operating mechanism spring; When being short-circuited or wanting the far distance controlled circuit breaker trip, the armature of the electromagnetic system on right side breaks off relations snap close under being inhaled by iron core in overload release or the short circuit electromagnet system 4, when under voltage takes place; Armature discharges, and also backs down locking-bar, and under the above failure condition, the disjunction of circuit breaker all is a trip free.
When various fault occurring, dynamic and static contact 2 is opened, and produces strong electric arc between the contact; Irony grid sheet in the arc control device is magnetized, and produces suction, and electric arc is inhaled to arc control device, and electric arc is divided into short arc; Utilize of the cooling of iron railings sheet, to improve arc resistance and arc voltage, arc extinction the most at last to electric arc.
Wherein, said overload release is that bimetallic element or stream are pressed release.
The method of work of pyromagnetic type circuit breaker of the present invention because the fuser belt arc control device, can be blown out electric arc, reduces the ablation of electric arc to switch contact, the arc overvoltage when arc extinguishing has also been avoided line switching takes place fast simultaneously and infringement equipment.It can guarantee the safety of circuit, can increase its useful life simultaneously.
Below the present invention has been done a detailed description, the above only is the present invention's preferred embodiment, when can not limiting practical range of the present invention, promptly allly does impartially to change and modify according to the application's scope, all should still belong in the covering scope of the present invention.
Claims (2)
1. the method for work of a pyromagnetic type circuit breaker is characterized in that: just often, dynamic and static contact closure, when transshipping, bimetallic element clockwise rotates the snap close in the operating mechanism, backs down snap close by draw bar; Circuit breaker allows dynamic/static contact break off under the operating mechanism spring action; When being short-circuited or wanting the far distance controlled circuit breaker trip, the armature of the electromagnetic system on right side breaks off relations snap close under being inhaled by iron core in overload release or the short circuit electromagnet system, when under voltage takes place; Armature discharges, and also backs down locking-bar, and under the above failure condition, the disjunction of circuit breaker all is a trip free;
When various fault occurring, dynamic and static contact is opened, and produces strong electric arc between the contact; Irony grid sheet in the arc control device is magnetized, and produces suction, and electric arc is inhaled to arc control device, and electric arc is divided into short arc; Utilize of the cooling of iron railings sheet, to improve arc resistance and arc voltage, arc extinction the most at last to electric arc.
2. the method for work of pyromagnetic type circuit breaker according to claim 1 is characterized in that: said overload release is that bimetallic element or stream are pressed release.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102774304A CN102347177A (en) | 2011-09-19 | 2011-09-19 | Method for operating thermomagnetic circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102774304A CN102347177A (en) | 2011-09-19 | 2011-09-19 | Method for operating thermomagnetic circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102347177A true CN102347177A (en) | 2012-02-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102774304A Pending CN102347177A (en) | 2011-09-19 | 2011-09-19 | Method for operating thermomagnetic circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102347177A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104112629A (en) * | 2014-06-30 | 2014-10-22 | 国家电网公司 | Device for preventing reverse charging of secondary side of voltage transformer |
| CN106786346A (en) * | 2017-02-10 | 2017-05-31 | 黑龙江恒讯科技有限公司 | A kind of IP-based miniature circuit breaker |
| CN108335953A (en) * | 2018-03-31 | 2018-07-27 | 浙江奥德克电气科技有限公司 | Breaker |
| CN109767958A (en) * | 2019-02-15 | 2019-05-17 | 黄河科技学院 | A kind of electronic breaker |
| CN110399030A (en) * | 2019-07-31 | 2019-11-01 | 浪潮商用机器有限公司 | A kind of anti-electric current percussion mechanism, method and server master board |
| CN110429489A (en) * | 2019-06-25 | 2019-11-08 | 南安市博铭工业设计有限公司 | A kind of electric power box convenient for fast break |
| CN111584314A (en) * | 2020-05-12 | 2020-08-25 | 湖州南浔上福线缆有限公司 | Drop-out power protection device based on thermal bimetallic strip principle |
| CN112420461A (en) * | 2020-11-09 | 2021-02-26 | 广东电网有限责任公司东莞供电局 | Emergency brake-separating mechanism of circuit breaker |
| CN113241290A (en) * | 2021-05-10 | 2021-08-10 | 国网山东省电力公司莱芜供电公司 | Current overload monitoring device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5233321A (en) * | 1990-11-15 | 1993-08-03 | Telemecanique | Protective switch |
| EP0649157A1 (en) * | 1993-10-15 | 1995-04-19 | Schneider Electric Sa | Electrical protection device with a circuit breaker and an effector |
| CN2485781Y (en) * | 2001-04-09 | 2002-04-10 | 成劭颖 | Overload protecter |
| CN201608505U (en) * | 2010-02-24 | 2010-10-13 | 永州市黎明电器设备有限公司 | Small trip circuit breakage current leakage protector |
-
2011
- 2011-09-19 CN CN2011102774304A patent/CN102347177A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5233321A (en) * | 1990-11-15 | 1993-08-03 | Telemecanique | Protective switch |
| EP0649157A1 (en) * | 1993-10-15 | 1995-04-19 | Schneider Electric Sa | Electrical protection device with a circuit breaker and an effector |
| CN2485781Y (en) * | 2001-04-09 | 2002-04-10 | 成劭颖 | Overload protecter |
| CN201608505U (en) * | 2010-02-24 | 2010-10-13 | 永州市黎明电器设备有限公司 | Small trip circuit breakage current leakage protector |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104112629A (en) * | 2014-06-30 | 2014-10-22 | 国家电网公司 | Device for preventing reverse charging of secondary side of voltage transformer |
| CN106786346A (en) * | 2017-02-10 | 2017-05-31 | 黑龙江恒讯科技有限公司 | A kind of IP-based miniature circuit breaker |
| CN108335953A (en) * | 2018-03-31 | 2018-07-27 | 浙江奥德克电气科技有限公司 | Breaker |
| CN108335953B (en) * | 2018-03-31 | 2024-01-02 | 浙江天为电气科技有限公司 | Circuit breaker |
| CN109767958A (en) * | 2019-02-15 | 2019-05-17 | 黄河科技学院 | A kind of electronic breaker |
| CN110429489B (en) * | 2019-06-25 | 2020-08-25 | 江苏华鹏智能仪表科技股份有限公司 | Power box convenient to cut off power supply fast |
| CN110429489A (en) * | 2019-06-25 | 2019-11-08 | 南安市博铭工业设计有限公司 | A kind of electric power box convenient for fast break |
| CN110399030B (en) * | 2019-07-31 | 2021-03-09 | 浪潮商用机器有限公司 | Current impact prevention device and method and server mainboard |
| CN110399030A (en) * | 2019-07-31 | 2019-11-01 | 浪潮商用机器有限公司 | A kind of anti-electric current percussion mechanism, method and server master board |
| CN111584314A (en) * | 2020-05-12 | 2020-08-25 | 湖州南浔上福线缆有限公司 | Drop-out power protection device based on thermal bimetallic strip principle |
| CN112420461A (en) * | 2020-11-09 | 2021-02-26 | 广东电网有限责任公司东莞供电局 | Emergency brake-separating mechanism of circuit breaker |
| CN112420461B (en) * | 2020-11-09 | 2022-08-09 | 广东电网有限责任公司东莞供电局 | Emergency brake-separating mechanism of circuit breaker |
| CN113241290A (en) * | 2021-05-10 | 2021-08-10 | 国网山东省电力公司莱芜供电公司 | Current overload monitoring device |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 528437 B building, No. 53 West Jiangling Road, torch hi tech Development Zone, Guangdong, Zhongshan Applicant after: GUANGDONG TECCO ELECTRIC Co.,Ltd. Address before: 528437 B building, No. 53 West Jiangling Road, torch hi tech Development Zone, Guangdong, Zhongshan Applicant before: Guangdong Tianfu Electrical Group Co.,Ltd. |
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| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: GUANGDONG TIANFU ELECTRIC GROUP CO., LTD. TO: GUANGDONG TECCO ELECTRIC CO., LTD. |
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| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120208 |