CN105656016A - Magnetic-valve-type controllable arc suppression coil structure - Google Patents
Magnetic-valve-type controllable arc suppression coil structure Download PDFInfo
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- CN105656016A CN105656016A CN201610117037.1A CN201610117037A CN105656016A CN 105656016 A CN105656016 A CN 105656016A CN 201610117037 A CN201610117037 A CN 201610117037A CN 105656016 A CN105656016 A CN 105656016A
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- China
- Prior art keywords
- arc suppression
- suppression coil
- phase
- winding
- grounding transformer
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/08—Limitation or suppression of earth fault currents, e.g. Petersen coil
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Abstract
A magnetic-valve-type controllable arc suppression coil structure comprises a grounding transformer adopting a three-phase three-column coil structure and an arc suppression coil adopting a single-phase four-column structure, the connection symbol of the grounding transformer is ZN, coils of each phase are wound on two magnetic columns respectively, and zero sequence fluxes generated by windings of two phases are mutually counteracted; the arc suppression coil utilizes the magnetic-valve-type controllable inductor principle, the capacity and reactance of the arc suppression coil are changed by controlling a silicon controlled rectifier conduction angle, and a single-phase grounding current is automatically compensated; the grounding transformer and the arc suppression coil are a whole and are fixed in a same oil tank; the grounding transformer comprises an innermost layer winding, inner windings and outer windings, wherein three-phase outgoing lines of the outer windings are connected with electricity transmission lines respectively, and the outgoing line of the innermost layer winding is a direct-current output power supply; the arc suppression coil comprises main windings on the innermost layer and control windings on the outer upper layer and the outer lower layer. The magnetic-valve-type controllable arc suppression coil structure has the advantages of being convenient to repair and maintain, capable of simplifying connection circuits and enhancing whole attractiveness and the like.
Description
Technical field
The present invention relates to a kind of magnet valve controlled arc suppression coil structure being widely used in power system transmission line small current neutral grounding system, belong to power system corollary equipment technical field.
Background technology
The 10KV distribution of China is isolated neutral system, when single-phase earthing (electric capacity) electric current reaches more than 10A, just need to install arc suppression coil in neutral point. Long-term operating experience fully proves, singlephase earth fault rate reaches more than 65%, and arc suppression coil motional success rate is high, is substantially reduce failure on-off number of times and ensure important measures of electric power netting safe running.
Magnetic control arc suppression coil integrated apparatus, as the functional apparatus of power system, is with a wide range of applications, and in arc suppression coil field, advantage is fairly obvious. Owing to distribution is isolated neutral system, use and need during arc suppression coil to coordinate grounding transformer, individually join a grounding transformer and wiring and in-site installation are all inconvenient for, therefore, arc suppression coil and grounding transformer are integrated gasifying device, it is possible to reduce cost, it is simple to install.
Summary of the invention
It is an object of the invention to the deficiency overcoming prior art to exist, and a kind of integrated design that adopts is provided, compact conformation, it is simple to repair and maintenance, connection line can be simplified, strengthen the magnet valve controlled arc suppression coil structure of overall appearance.
It is an object of the invention to complete by following technical solution, a kind of magnet valve controlled arc suppression coil structure, it includes the grounding transformer adopting three-phase three-limb loop construction and the arc suppression coil adopting single-phase four posts, the connection group of described grounding transformer is ZN, phase coil is wound on two magnetic posts respectively, and makes the zero sequence fluxes that two phase windings produce cancel out each other; Described arc suppression coil is to utilize magnetic valve type controllable reactor principle, by controlling thyristor operating angle, to change arc suppression coil capacity and reactance, and automatically compensates single-phase-to-ground current;Described grounding transformer and arc suppression coil are as a whole and be fixed in same fuel tank.
As preferably: described grounding transformer includes innermost layer winding, interior winding and outer winding, the three-phase outlet of wherein said outer winding connects power transmission line respectively, and innermost layer winding outlet is DC output power; Described arc suppression coil includes the control winding of the main winding of innermost layer, outer upper strata and outer lower floor, and the outlet wherein controlled on winding is connected to magnetic control means, and the X end points ground connection of main winding, Y end points is connected to the neutral point of grounding transformer.
The method have the benefit that:
1) grounding transformer coil adopts three-phase three-limb structure, and connection group is ZN(yn11), phase coil is wound on two magnetic posts respectively, the zero sequence fluxes that two phase windings produce is cancelled out each other, grounding transformer zero sequence fluxes is only small, and open circuit loss is low, and transformer capacity utilization rate is high;
2) arc suppression coil adopts magnet controlled single-phase reactor structure, utilizes magnetic valve type controllable reactor principle, by controlling thyristor operating angle, changes arc suppression coil capacity and reactance, automatically compensates single-phase-to-ground current;
3) grounding transformer and arc suppression coil are as a whole, it is not necessary to additionally independent grounding transformer, simple in construction, easy-to-connect, it is simple to in-site installation, safeguard.
Accompanying drawing explanation
The magnet valve controlled arc suppression coil that Fig. 1 is the present invention arranges schematic diagram.
Fig. 2 is the magnet valve controlled arc suppression coil wiring schematic diagram of the present invention.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail. Fig. 1, shown in 2, a kind of magnet valve controlled arc suppression coil structure of the present invention, it includes the grounding transformer 11 adopting three-phase three-limb loop construction and the arc suppression coil 12 adopting single-phase four posts, the connection group of described grounding transformer 11 is ZN(yn11), phase coil is wound on two magnetic posts respectively, and makes the zero sequence fluxes that two phase windings produce cancel out each other; Described arc suppression coil 12 is to utilize magnetic valve type controllable reactor principle, by controlling thyristor operating angle, to change arc suppression coil capacity and reactance, and automatically compensates single-phase-to-ground current; Described grounding transformer 11 and arc suppression coil 12 are as a whole and be fixed in same fuel tank 13.
Shown in Fig. 2, grounding transformer of the present invention includes innermost layer winding, interior winding and outer winding, and three-phase outlet A, B, C of wherein said outer winding connects power transmission line A, B, C respectively, and innermost layer winding outlet S0, S1, S2 are DC output power; Described arc suppression coil includes the control winding of the main winding of innermost layer, outer upper strata and outer lower floor, and the outlet K1, K2, D1, the D2 that wherein control on winding are connected to magnetic control means, and the X end points ground connection of main winding, Y end points is connected to the neutral point D of grounding transformer.
The present invention adopts a fuel tank that grounding transformer and magnet valve controlled arc suppression coil are assembled into a device, and the DC source needed for control system is directly in body tap power taking, and then tapped line is connected to control system, substitutes the original external power source needed; It is by integrated for a whole automatic tracking and compensating complexes entirety, and monnolithic case is succinct, facilitates in-site installation.
Claims (2)
1. a magnet valve controlled arc suppression coil structure, it includes the grounding transformer adopting three-phase three-limb loop construction and the arc suppression coil adopting single-phase four posts, it is characterized in that the connection group of described grounding transformer (11) is ZN, phase coil is wound on two magnetic posts respectively, and makes the zero sequence fluxes that two phase windings produce cancel out each other;Described arc suppression coil (12) is to utilize magnetic valve type controllable reactor principle, by controlling thyristor operating angle, to change arc suppression coil capacity and reactance, and automatically compensates single-phase-to-ground current; Described grounding transformer (11) and arc suppression coil (12) are as a whole and be fixed in same fuel tank (13).
2. magnet valve controlled arc suppression coil structure according to claim 1, it is characterized in that described grounding transformer (11) includes innermost layer winding, interior winding and outer winding, the three-phase outlet (A, B, C) of wherein said outer winding is corresponding connects power transmission line (A, B, C), innermost layer winding outlet (S0, S1, S2) for DC output power; Described arc suppression coil (12) includes the control winding of the main winding of innermost layer, outer upper strata and outer lower floor, the outlet (K1, K2, D1, D2) wherein controlled on winding is connected to magnetic control means, the X end points ground connection of main winding, Y end points is connected to the neutral point (D) of grounding transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610117037.1A CN105656016A (en) | 2016-03-02 | 2016-03-02 | Magnetic-valve-type controllable arc suppression coil structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610117037.1A CN105656016A (en) | 2016-03-02 | 2016-03-02 | Magnetic-valve-type controllable arc suppression coil structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105656016A true CN105656016A (en) | 2016-06-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610117037.1A Pending CN105656016A (en) | 2016-03-02 | 2016-03-02 | Magnetic-valve-type controllable arc suppression coil structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106877306A (en) * | 2017-03-08 | 2017-06-20 | 内蒙古电力(集团)有限责任公司内蒙古电力科学研究院分公司 | Arc suppression coil of power distribution network distributed compensation device integrated with distribution transformer |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2273072Y (en) * | 1996-07-25 | 1998-01-21 | 魏书庆 | Electro-control earthing arc extinguishing arrangement |
| CN201146386Y (en) * | 2008-01-21 | 2008-11-05 | 丹东欣泰电气股份有限公司 | Magnetic valve type continuation adjustable arc-suppression coil |
| CN201549890U (en) * | 2009-10-20 | 2010-08-11 | 丹东欣泰电气股份有限公司 | Magnet valve controlled arc suppression coil |
| CN203434619U (en) * | 2013-09-16 | 2014-02-12 | 天津市东宝电气科技有限公司 | Novel transformer neutral-point ground resistor cabinet apparatus |
| CN103762578A (en) * | 2014-01-14 | 2014-04-30 | 青岛世驰电气有限公司 | Intelligent tuning compensation package unit |
| CN104992823A (en) * | 2015-07-20 | 2015-10-21 | 国网辽宁省电力有限公司鞍山供电公司 | Integral connection method and apparatus for grounding transformer and arc suppression coil |
| CN205565723U (en) * | 2016-03-02 | 2016-09-07 | 国网浙江桐乡市供电公司 | Controllable arc suppressing coil structure of magnet valve formula |
-
2016
- 2016-03-02 CN CN201610117037.1A patent/CN105656016A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2273072Y (en) * | 1996-07-25 | 1998-01-21 | 魏书庆 | Electro-control earthing arc extinguishing arrangement |
| CN201146386Y (en) * | 2008-01-21 | 2008-11-05 | 丹东欣泰电气股份有限公司 | Magnetic valve type continuation adjustable arc-suppression coil |
| CN201549890U (en) * | 2009-10-20 | 2010-08-11 | 丹东欣泰电气股份有限公司 | Magnet valve controlled arc suppression coil |
| CN203434619U (en) * | 2013-09-16 | 2014-02-12 | 天津市东宝电气科技有限公司 | Novel transformer neutral-point ground resistor cabinet apparatus |
| CN103762578A (en) * | 2014-01-14 | 2014-04-30 | 青岛世驰电气有限公司 | Intelligent tuning compensation package unit |
| CN104992823A (en) * | 2015-07-20 | 2015-10-21 | 国网辽宁省电力有限公司鞍山供电公司 | Integral connection method and apparatus for grounding transformer and arc suppression coil |
| CN205565723U (en) * | 2016-03-02 | 2016-09-07 | 国网浙江桐乡市供电公司 | Controllable arc suppressing coil structure of magnet valve formula |
Non-Patent Citations (1)
| Title |
|---|
| 张全元: "《变电站运行现场技术问答第三版》", 28 February 2013, 中国电力出版社出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106877306A (en) * | 2017-03-08 | 2017-06-20 | 内蒙古电力(集团)有限责任公司内蒙古电力科学研究院分公司 | Arc suppression coil of power distribution network distributed compensation device integrated with distribution transformer |
| CN106877306B (en) * | 2017-03-08 | 2020-05-08 | 内蒙古电力(集团)有限责任公司内蒙古电力科学研究院分公司 | Distribution network arc suppression coil and distribution transformer integrated distributed compensation device |
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Application publication date: 20160608 |
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| RJ01 | Rejection of invention patent application after publication |