CN103269018A - Intelligent ring main unit with voltage protective function - Google Patents
Intelligent ring main unit with voltage protective function Download PDFInfo
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- CN103269018A CN103269018A CN2013102366249A CN201310236624A CN103269018A CN 103269018 A CN103269018 A CN 103269018A CN 2013102366249 A CN2013102366249 A CN 2013102366249A CN 201310236624 A CN201310236624 A CN 201310236624A CN 103269018 A CN103269018 A CN 103269018A
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- Prior art keywords
- rotating shaft
- control device
- main unit
- isolation
- ring main
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- 230000009993 protective function Effects 0.000 title abstract 2
- 238000002955 isolation Methods 0.000 claims description 43
- 208000036829 Device dislocation Diseases 0.000 claims description 9
- 229910000906 Bronze Inorganic materials 0.000 claims description 4
- 239000010974 bronze Substances 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 230000003068 static effect Effects 0.000 abstract description 2
- 238000004146 energy storage Methods 0.000 description 19
- 238000010586 diagram Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention discloses an intelligent ring main unit with a voltage protective function. The intelligent ring main unit comprises a ring main unit body, wherein an electromagnetic operating mechanism, an upper isolating fracture and a vacuum arc extinguish chamber are arranged in the ring main unit body; a lower isolating grounding switch is connected at the lower end of the vacuum arc extinguish chamber; the upper isolating fracture comprises an isolating rotary shaft, an upper isolating static contact head and an upper isolating movable contact head, wherein the isolating rotary shaft is connected with the upper isolating movable contact head; the vacuum arc extinguish chamber comprises an arc extinguish chamber rotary shaft, an arc extinguish chamber fixed end and an arc extinguish chamber movable end, wherein the arc extinguish chamber rotary shaft is connected with the arc extinguish chamber movable end; the electromagnetic operating mechanism comprises a rocker arm, wherein the rocker arm is respectively connected with the isolating rotary shaft and the arc extinguish chamber rotary shaft by an isolating rotary shaft crank arm and an arc extinguish chamber rotary shaft crank arm. The electromagnetic operating mechanism is used for realizing linkage of the upper isolating fracture at the vacuum arc extinguish chamber without time lag, so that the brake is switched on while being electrified.
Description
Technical field
The present invention relates to a kind of middle ring main unit of pressing, relate in particular to a kind of intelligent ring main unit with voltage protection function.
Background technology
At present, pressing ring main unit in known is to adopt spring operating mechanism basically mostly, and electromagnetic operating mechanism is because switching current is big, uses lessly at present, still uses in some old transformer and distribution stations.
Spring operating mechanism of the prior art is a kind of with the mechanical type operating mechanism of spring as energy-storage travelling wave tube.The energy storage of spring is finished by deceleration device by motor, and remains on the energy storage state through fastener system.When cut-offfing, spring releases energy, and makes the contact motion through the mechanical transfer unit.Switching-in spring and tripping spring are independently, and energy storage motor is only given the switching-in spring energy storage, and tripping spring generally is by the energy storage of Switch main body feed motion. in closing circuit, be in series with switch energy storage contact.When switch was in gate-dividing state, tripping spring is energy storage not, and switching-in spring is through energy storage motor energy storage.During combined floodgate, switching-in spring releases energy, and gives the tripping spring energy storage simultaneously.When switching-in spring had discharged energy, motor began to the switching-in spring energy storage, and the energy storage of tripping spring this moment is so switch can tripping when fault.
There is following shortcoming at least in above-mentioned prior art:
It is whether the energy storage that relies on energy storage device is finished that spring operating mechanism closes a floodgate, when spring energy storage, mechanism gets electric can the combined floodgate immediately, and energy-stored spring is during energy storage, and it is electric that mechanism gets, and must first energy storage could close a floodgate, the thermal energy storage process of spring probably needs about ten seconds, therefore, switch needs about ten seconds from getting electric finishing to combined floodgate, and switch is electric longer to the deadline of closing a floodgate from getting.
Summary of the invention
The purpose of this invention is to provide a kind of do not have time lag, the electric intelligent ring main unit with voltage protection function that namely closes a floodgate.
The objective of the invention is to be achieved through the following technical solutions:
Intelligent ring main unit with voltage protection function of the present invention comprises the ring main unit body, is provided with electromagnetic operating mechanism in the described ring main unit body, goes up isolation fracture and vacuum interrupter, and the lower end of described vacuum interrupter is connected to down isolation earthing switch;
Described go up isolation fracture comprise isolate rotating shaft, on isolate fixed contact, on isolate moving contact, described isolation rotating shaft is connected with the described isolation moving contact of going up;
Described vacuum interrupter comprises arc control device rotating shaft, the quiet end of arc control device, arc control device moved end, and described arc control device rotating shaft is connected with described arc control device moved end;
Described electromagnetic operating mechanism comprises rocking arm, and rotating shaft is connected described rocking arm with arc control device with described isolation rotating shaft with arc control device rotating shaft connecting lever by isolating the rotating shaft connecting lever respectively.
As seen from the above technical solution provided by the invention; the intelligent ring main unit with voltage protection function that the embodiment of the invention provides; owing to comprise electromagnetic operating mechanism, last isolation fracture, vacuum interrupter, following isolation earthing switch; realize to go up isolation fracture by electromagnetic operating mechanism and link at vacuum interrupter, no time lag, electric i.e. combined floodgate.
Description of drawings
The general structure schematic diagram of the intelligent ring main unit with voltage protection function that Fig. 1 provides for the embodiment of the invention;
The internal structure schematic diagram of the intelligent ring main unit with voltage protection function that Fig. 2 provides for the embodiment of the invention;
Fig. 3 a is the perspective view one of operating mechanism in the embodiment of the invention;
Fig. 3 b is the perspective view two of operating mechanism in the embodiment of the invention;
The operation principle schematic diagram of the intelligent ring main unit with voltage protection function that Fig. 4 provides for the embodiment of the invention.
Among the figure:
1, air chamber, 2, pressure releasing chamber, 3, secondary chamber, 4, the mechanism chamber, 5, cable vault, 6, on isolate fixed contact, 7, on isolate moving contact, 8, the arc control device rotating shaft, 9, isolate rotating shaft, 10, be flexible coupling, 11, vacuum interrupter, 12, arc control device rotating shaft connecting lever, 13, rocking arm, 14, deciliter indication, 15, mechanism's handle hole, 16, moving iron core, 17, isolate the rotating shaft connecting lever, 18, coil, 19, following isolation earthing switch, 20, bus.
Embodiment
To be described in further detail the embodiment of the invention below.
Intelligent ring main unit with voltage protection function of the present invention, its preferable embodiment is:
Comprise the ring main unit body, be provided with electromagnetic operating mechanism in the described ring main unit body, go up isolation fracture and vacuum interrupter that the lower end of described vacuum interrupter is connected to down isolation earthing switch;
Described go up isolation fracture comprise isolate rotating shaft, on isolate fixed contact, on isolate moving contact, described isolation rotating shaft is connected with the described isolation moving contact of going up;
Described vacuum interrupter comprises arc control device rotating shaft, the quiet end of arc control device, arc control device moved end, and described arc control device rotating shaft is connected with described arc control device moved end;
Described electromagnetic operating mechanism comprises rocking arm, and rotating shaft is connected described rocking arm with arc control device with described isolation rotating shaft with arc control device rotating shaft connecting lever by isolating the rotating shaft connecting lever respectively.
The described isolation fixed contact of going up comprises two beryllium-bronze contact blades, and the outside of two beryllium-bronze contact blades is respectively equipped with the contact stage clip.
The described moving contact of go up isolating is connected with conductive clip by being flexible coupling, and described conductive clip and described arc control device moved end are by being threaded.
Described isolation earthing switch down is isolation earthing switch under three stations.
Intelligent ring main unit with voltage protection function of the present invention has solved middle pressure ring main unit and has got the problem that electric combined floodgate lags behind.
Specific embodiment:
As shown in Figure 1 and Figure 2, comprise ring main unit body construction, bus connecting mode, vacuum interrupter and last isolation fracture linkage structure, following isolation earthing switch structure, electromagnetic operating mechanism etc.Electromagnetic operating mechanism when electric, utilize electric magnetisation, magnetic is given birth to the principle of power, and switch is closed a floodgate immediately, switching current is below 17A, closing a floodgate keeps electric current being not more than 0.5A, gets electric closing time and is not more than 180ms.
Ring main unit adopts vacuum interrupter and last isolation fracture linkage structure, realizes going up isolation fracture by electromagnetic operating mechanism and divide back 10ms action before vacuum interrupter closes.Isolation earthing switch under termination three stations under the vacuum interrupter.Last isolation fixed contact adopts the beryllium-bronze structure, and the contact stage clip is installed in the contact blade outside, increases contact pressure, reduces contact resistance.Dynamic/static contact adopts the face way of contact, increases contact area.Last isolation moving contact is connected with conductive clip by being flexible coupling, and conductive clip and arc control device moved end are by being threaded, and the quiet end of arc control device is by being threaded on the stationary contact headstock, and the stationary contact headstock is fixed on insulation and supports.
Shown in Fig. 3 a, Fig. 3 b, vacuum interrupter and deciliter interlock of last isolation fracture are rotated realization by the rocking arm of electromagnetic operating mechanism, the arc control device rotating shaft connecting lever of control vacuum interrupter all is connected on the rocking arm by roller and pin with the isolation rotating shaft connecting lever of control isolation fracture, when the electromagnetic operating mechanism breaking-closing operating; rocking arm rotates; drive arc control device rotating shaft connecting lever and isolate the rotation of rotating shaft connecting lever, thereby realized the interlock of last isolation fracture and vacuum interrupter.
The operation principle of ring main unit is as shown in Figure 4:
Vacuum interrupter adopts electromagnetic operating mechanism to realize vacuum interrupter and the interlock of last isolation fracture.When electromagnetic operating mechanism gets, travel switch 1CK is normally closed closed, relay J DQ energising, its normally opened contact closure, closing coil is by the direct current through rectifying block 4DX full-wave rectification, and the iron core adhesive drives the electromagnetic operating mechanism rocking arm and rotates; rocking arm drives arc control device rotating shaft connecting lever and isolates the rotation of rotating shaft connecting lever, thereby realizes that switch closes a floodgate.Behind the combined floodgate, the normally closed point of electromagnetic operating mechanism travel switch 1CK disconnects, relay electric-loss, and its contact disconnects.This moment, holding circuit changed into: through the 5DX halfwave rectifier, through parallel resistance, hold-in winding BQ and closing coil HQ form the loop.
The beneficial effect that the present invention brings is:
Ring main unit has last isolation fracture and following isolation earthing switch, has realized the interlock function of last isolation fracture and vacuum interrupter, gets electric closing function no time lag, and switching current is not more than 17A, keeps electric current about 0.45A.Vacuum interrupter deciliter rotates by rotating shaft and realizes, has reduced driving member.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claims.
Claims (4)
1. the intelligent ring main unit with voltage protection function comprises the ring main unit body, it is characterized in that, is provided with electromagnetic operating mechanism in the described ring main unit body, goes up isolation fracture and vacuum interrupter, and the lower end of described vacuum interrupter is connected to down isolation earthing switch;
Described go up isolation fracture comprise isolate rotating shaft, on isolate fixed contact, on isolate moving contact, described isolation rotating shaft is connected with the described isolation moving contact of going up;
Described vacuum interrupter comprises arc control device rotating shaft, the quiet end of arc control device, arc control device moved end, and described arc control device rotating shaft is connected with described arc control device moved end;
Described electromagnetic operating mechanism comprises rocking arm, and rotating shaft is connected described rocking arm with arc control device with described isolation rotating shaft with arc control device rotating shaft connecting lever by isolating the rotating shaft connecting lever respectively.
2. the vacuum load switch of band isolating switch interlock according to claim 1 is characterized in that, the described isolation fixed contact of going up comprises two beryllium-bronze contact blades, and the outside of two beryllium-bronze contact blades is respectively equipped with the contact stage clip.
3. the vacuum load switch of band isolating switch according to claim 2 interlock is characterized in that, described going up isolated moving contact and be connected with conductive clip by being flexible coupling, and described conductive clip and described arc control device moved end are by being threaded.
4. according to the vacuum load switch of claim 1,2 or 3 described band isolating switch interlocks, it is characterized in that described isolation earthing switch down is isolation earthing switch under three stations.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310236624.9A CN103269018B (en) | 2013-06-14 | 2013-06-14 | There is the intelligent ring main unit of voltage protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310236624.9A CN103269018B (en) | 2013-06-14 | 2013-06-14 | There is the intelligent ring main unit of voltage protection function |
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| Publication Number | Publication Date |
|---|---|
| CN103269018A true CN103269018A (en) | 2013-08-28 |
| CN103269018B CN103269018B (en) | 2016-02-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310236624.9A Active CN103269018B (en) | 2013-06-14 | 2013-06-14 | There is the intelligent ring main unit of voltage protection function |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10050138C2 (en) * | 2000-10-11 | 2003-01-30 | Felten & Guilleaume Ag | Drive for electrical switches |
| CN201112160Y (en) * | 2007-10-23 | 2008-09-10 | 珠海许继电气有限公司 | Single spring electromagnetic operation mechanism |
| CN101620946A (en) * | 2009-08-17 | 2010-01-06 | 余翔 | High-pressure tuner-type disconnection switch |
| CN201498869U (en) * | 2009-09-02 | 2010-06-02 | 江苏帝一集团有限公司 | Vacuum ring main unit |
| CN102938543A (en) * | 2012-10-28 | 2013-02-20 | 安徽省歙县科祺电力设备有限公司 | Intelligent all-insulating full-closing inflatable ring main unit |
| CN203423090U (en) * | 2013-06-14 | 2014-02-05 | 北京合纵科技股份有限公司 | Intelligent ring main unit with voltage protection function |
-
2013
- 2013-06-14 CN CN201310236624.9A patent/CN103269018B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10050138C2 (en) * | 2000-10-11 | 2003-01-30 | Felten & Guilleaume Ag | Drive for electrical switches |
| CN201112160Y (en) * | 2007-10-23 | 2008-09-10 | 珠海许继电气有限公司 | Single spring electromagnetic operation mechanism |
| CN101620946A (en) * | 2009-08-17 | 2010-01-06 | 余翔 | High-pressure tuner-type disconnection switch |
| CN201498869U (en) * | 2009-09-02 | 2010-06-02 | 江苏帝一集团有限公司 | Vacuum ring main unit |
| CN102938543A (en) * | 2012-10-28 | 2013-02-20 | 安徽省歙县科祺电力设备有限公司 | Intelligent all-insulating full-closing inflatable ring main unit |
| CN203423090U (en) * | 2013-06-14 | 2014-02-05 | 北京合纵科技股份有限公司 | Intelligent ring main unit with voltage protection function |
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| Publication number | Publication date |
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| CN103269018B (en) | 2016-02-24 |
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Effective date of registration: 20240318 Address after: 410000, Room 401-16, Building 2, Xincheng Science and Technology Park, No. 588 Yuelu West Avenue, Dongfanghong Street, Xiangjiang New District, Changsha City, Hunan Province Patentee after: Hezong Technology Co.,Ltd. Country or region after: China Address before: 100085, D, building 9, Ka Wah building, 1211 3rd Street, Beijing, Haidian District Patentee before: BEIJING HEZONG SCIENCE & TECHNOLOGY Co.,Ltd. Country or region before: China |