CN103326248B - A kind of switch cubicle of built-in A.C. contactor protective device - Google Patents
A kind of switch cubicle of built-in A.C. contactor protective device Download PDFInfo
- Publication number
- CN103326248B CN103326248B CN201310206812.7A CN201310206812A CN103326248B CN 103326248 B CN103326248 B CN 103326248B CN 201310206812 A CN201310206812 A CN 201310206812A CN 103326248 B CN103326248 B CN 103326248B
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- Prior art keywords
- contactor
- built
- triple line
- access
- fast recovery
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- 230000001681 protective effect Effects 0.000 title claims abstract description 12
- 238000011084 recovery Methods 0.000 claims abstract description 20
- 239000002184 metal Substances 0.000 claims abstract description 9
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000000696 magnetic material Substances 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The invention discloses a kind of switch cubicle of built-in A.C. contactor protective device; include cabinet; A.C. contactor is built-in with in cabinet; on A.C. contactor, triple line has access to threephase switch; threephase switch is fixed with metal pedestal; two fast recovery diodes, a resistance that protection branch road is one another in series, and be connected in parallel on ohmically electromagnet formation, electromagnet is arranged on the position relative with metal pedestal on threephase switch.The present invention can replace fuse, and need not change after playing a protective role, and can continue to use, and solves and changes the complicated problem of fuse work.
Description
Technical field
The present invention relates to switch cubicle field, be specially a kind of switch cubicle of built-in A.C. contactor protective device.
Background technology
Switch cubicle is conventional alternating current transmission equipment, and its built-in various electric component, as A.C. contactor etc.In the switch cubicle that prior art has, the triple line of A.C. contactor access accesses fuse, and to prevent, voltage is excessive to cause damage to A.C. contactor.The switch cubicle of this structure is as run into the excessive situation of voltage, and fuse disconnects, and need to open switch cubicle replacing fuse and just can continue to use, repair is comparatively complicated.
Summary of the invention
The object of this invention is to provide a kind of switch cubicle of built-in A.C. contactor protective device, with solve prior art switch cubicle A.C. contactor insure silk disconnect after the comparatively complicated problem of repair.
In order to achieve the above object, the technical solution adopted in the present invention is:
A kind of switch cubicle of built-in A.C. contactor protective device, include cabinet, A.C. contactor is built-in with in cabinet, A.C. contactor has access to triple line, it is characterized in that: triple line has access to threephase switch, threephase switch is fixed with metal pedestal, also include protection branch road, route two fast recovery diodes are propped up in described protection, a resistance, be connected in parallel on ohmically electromagnet to form, the wherein live wire of first fast recovery diode negative pole access triple line, the positive pole of first fast recovery diode is accessed in resistance one end, the resistance other end accesses second fast recovery diode positive pole, the zero line of second fast recovery diode negative pole access triple line, described electromagnet is arranged on the position relative with metal pedestal on threephase switch.
The switch cubicle of described a kind of built-in A.C. contactor protective device; it is characterized in that: described protection branch road, threephase switch are arranged in the housing that exhausted magnetic material makes; housing sidewall is provided with two groups respectively for the three-phase binding post of triple line, A.C. contactor access, described threephase switch two ends are connected with two groups of three-phase binding posts respectively by the triple line arranged in the housing.
In the present invention; threephase switch is in closure state at ordinary times, and in protection branch road, two fast recovery diode interlockings, make whole protection branch road be in cut-off state; when in triple line, voltage peak is excessive; the breakdown short circuit of two fast recovery diodes, resistance produces voltage, thus makes to be connected in parallel on ohmically electromagnet generation magnetic force; metal pedestal on absorption threephase switch; threephase switch is disconnected, and in triple line during voltage resume, fast recovery diode can fast quick-recovery voluntarily.The present invention can replace fuse, and need not change after playing a protective role, and can continue to use, and solves and changes the complicated problem of fuse work.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
As shown in Figure 1.A kind of switch cubicle of built-in A.C. contactor protective device, include cabinet 1, A.C. contactor 2 is built-in with in cabinet 1, A.C. contactor 2 has access to triple line 3, triple line 3 has access to threephase switch 4, threephase switch 4 is fixed with metal pedestal 5, also include protection branch road, protection route two fast recovery diodes 6, 7, a resistance 8, the electromagnet 9 be connected in parallel on resistance 8 is formed, the wherein live wire of first fast recovery diode 6 negative pole access triple line 3, the positive pole of first fast recovery diode 6 is accessed in resistance 8 one end, resistance 8 other end accesses second fast recovery diode 7 positive pole, the zero line of second fast recovery diode 7 negative pole access triple line 3, electromagnet 9 is arranged on the position relative with metal pedestal 5 on threephase switch 4.
Protection branch road, threephase switch 4 are arranged in the housing 10 that exhausted magnetic material makes; housing 10 sidewall is provided with two groups respectively for the three-phase binding post 11,12 that triple line, A.C. contactor 2 access, threephase switch 4 two ends are connected with two groups of three-phase binding posts 11,12 respectively by the triple line arranged in the housing 10.
Claims (2)
1. the switch cubicle of a built-in A.C. contactor protective device, include cabinet, A.C. contactor is built-in with in cabinet, A.C. contactor has access to triple line, it is characterized in that: triple line has access to threephase switch, threephase switch is fixed with metal pedestal, also include protection branch road, route two fast recovery diodes are propped up in described protection, a resistance, be connected in parallel on ohmically electromagnet to form, the wherein live wire of first fast recovery diode negative pole access triple line, the positive pole of first fast recovery diode is accessed in resistance one end, the resistance other end accesses second fast recovery diode positive pole, the zero line of second fast recovery diode negative pole access triple line, described electromagnet is arranged on the position relative with metal pedestal on threephase switch.
2. the switch cubicle of a kind of built-in A.C. contactor protective device according to claim 1; it is characterized in that: described protection branch road, threephase switch are arranged in the housing that exhausted magnetic material makes; housing sidewall is provided with two groups respectively for the three-phase binding post of triple line, A.C. contactor access, described threephase switch two ends are connected with two groups of three-phase binding posts respectively by the triple line arranged in the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310206812.7A CN103326248B (en) | 2013-05-29 | 2013-05-29 | A kind of switch cubicle of built-in A.C. contactor protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310206812.7A CN103326248B (en) | 2013-05-29 | 2013-05-29 | A kind of switch cubicle of built-in A.C. contactor protective device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103326248A CN103326248A (en) | 2013-09-25 |
| CN103326248B true CN103326248B (en) | 2015-12-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310206812.7A Active CN103326248B (en) | 2013-05-29 | 2013-05-29 | A kind of switch cubicle of built-in A.C. contactor protective device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103326248B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2832113A1 (en) * | 1978-07-21 | 1980-01-31 | Juergen Olschewski | Three=phase current lines automatic phase protection box - uses fault current protection switches, automatic safety fuses and signal test lamps for each monitored line |
| US4724502A (en) * | 1983-12-16 | 1988-02-09 | Mitsubishi Denki Kabushiki Kaisha | Power transmission system with current limiting devices |
| CN201219177Y (en) * | 2008-06-11 | 2009-04-08 | 中国石油辽阳石油化纤公司 | Low-voltage distribution main konode system |
| CN101593936A (en) * | 2009-04-07 | 2009-12-02 | 湖南中科电气股份有限公司 | Digital non-contact electromagnetic control device |
| CN201556842U (en) * | 2009-11-20 | 2010-08-18 | 宁国鑫辰工贸有限公司 | Low-pressure comprehensive protective compensation metering box |
| CN202268691U (en) * | 2011-08-26 | 2012-06-06 | 北开电气集团有限公司 | Overvoltage absorbing device of mid-mounted switch cabinet |
-
2013
- 2013-05-29 CN CN201310206812.7A patent/CN103326248B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2832113A1 (en) * | 1978-07-21 | 1980-01-31 | Juergen Olschewski | Three=phase current lines automatic phase protection box - uses fault current protection switches, automatic safety fuses and signal test lamps for each monitored line |
| US4724502A (en) * | 1983-12-16 | 1988-02-09 | Mitsubishi Denki Kabushiki Kaisha | Power transmission system with current limiting devices |
| CN201219177Y (en) * | 2008-06-11 | 2009-04-08 | 中国石油辽阳石油化纤公司 | Low-voltage distribution main konode system |
| CN101593936A (en) * | 2009-04-07 | 2009-12-02 | 湖南中科电气股份有限公司 | Digital non-contact electromagnetic control device |
| CN201556842U (en) * | 2009-11-20 | 2010-08-18 | 宁国鑫辰工贸有限公司 | Low-pressure comprehensive protective compensation metering box |
| CN202268691U (en) * | 2011-08-26 | 2012-06-06 | 北开电气集团有限公司 | Overvoltage absorbing device of mid-mounted switch cabinet |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103326248A (en) | 2013-09-25 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 231600, Feidong, Hefei County, Anhui Province on the north side of latitude three road Patentee after: ANHUI YONGCHUAN ELECTRICAL EQUIPMENT CO.,LTD. Address before: 231600, Feidong, Hefei County, Anhui Province on the north side of latitude three road Patentee before: ANHUI YONGCHUAN ELECTRIC EQUIPMENT Co.,Ltd. |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A switchgear with built-in AC contactor protection device Granted publication date: 20151223 Pledgee: Industrial Bank Limited by Share Ltd. Hefei branch Pledgor: ANHUI YONGCHUAN ELECTRICAL EQUIPMENT CO.,LTD. Registration number: Y2024980000879 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |