CN203983830U - A kind of solid insulation ring main unit - Google Patents

A kind of solid insulation ring main unit Download PDF

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Publication number
CN203983830U
CN203983830U CN201420432187.8U CN201420432187U CN203983830U CN 203983830 U CN203983830 U CN 203983830U CN 201420432187 U CN201420432187 U CN 201420432187U CN 203983830 U CN203983830 U CN 203983830U
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CN
China
Prior art keywords
epoxy resin
switch
insulating sleeve
cabinet
switch module
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.)
Withdrawn - After Issue
Application number
CN201420432187.8U
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Chinese (zh)
Inventor
谭珍忠
粟立祥
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.)
CHENZHOU DONGTANG ELECTRIC EQUIPMENT Co Ltd
Original Assignee
CHENZHOU DONGTANG ELECTRIC EQUIPMENT Co Ltd
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Filing date
Publication date
Application filed by CHENZHOU DONGTANG ELECTRIC EQUIPMENT Co Ltd filed Critical CHENZHOU DONGTANG ELECTRIC EQUIPMENT Co Ltd
Priority to CN201420432187.8U priority Critical patent/CN203983830U/en
Application granted granted Critical
Publication of CN203983830U publication Critical patent/CN203983830U/en
Withdrawn - After Issue legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a kind of solid insulation ring main unit.Comprise the cabinet of being assembled by sheet metal; Operating mechanism and insulating sleeve are installed in cabinet from top to bottom successively and are solidified switch module (1); What insulating sleeve solidified switch module has insulation and obturation bus (2) to connect on loop; Insulating sleeve solidifies switch module (1) and comprises epoxy resin poured body (3), vacuum load switch and three station vacuum arc extinguish chambers; Described insulation and obturation bus comprises hollow copper tubing, in the surperficial compression moulding of hollow copper tubing, has one deck silicon rubber, and the appearance of silastic-layer is also planted and is embedded with one deck conduction or semiconductive shielding layer.The utility model can be realized modularized design, can independent assortment between each functional unit cabinet, if scene once road or a phase pole go wrong, can change on the spot easily.Looped network cabinet loop number can increase and decrease at the scene, simple in structure, volume is little.

Description

A kind of solid insulation ring main unit
Technical field
The utility model relates to supply network ring main unit, especially a kind of solid insulation ring main unit.
Background technology
The insulation mode of the isolated switchgear on existing ring main unit high-voltage switch unit mainly contains air insulation, SF 6three kinds of forms of gas-insulated and solid insulation.Air-insulated ring main unit, it is comprised of low-voltage compartment and high pressure compartment; As long as low-voltage compartment the inside is some secondary meters of dress and control protection component etc.; High pressure compartment the inside is provided with the elements such as isolating switch, on-load switch, fuse and earthed switch.Another is SF 6insulation ring main unit, due to the gas SF adopting 6carrying out having toxicity after arc extinguishing, and easily leaking, metal device casing is long-pending large, high to sealing requirements, processing technology is complicated, causes casing cost high, safeguards that detection is more complicated, degree of protection is also inadequate, and electrified body is exposed, be subject to the erosion of air, dust, easily cause the corrosion of electrified body, the grade that has reduced insulation, very easily causes human casualty accident.The features such as solid insulation switch is to adopt solid insulating material as the switchgear of main insulation medium, and it is little that solid insulation switch has volume, and dielectric strength is high, environmentally friendly are the mains direction of studying of isolated switchgear later.
At present both at home and abroad Jun You many enterprises are at research and development solid insulation ring main unit, have by type approval test, and in the various places hanging net operation several years.Solid insulation ring main unit from the market can find out, at present, the structure of solid insulation ring main unit mainly contains following several: 1 only has the solid insulation switch of major loop vacuum circuit-breaker, as U.S. G & W company.2 vacuum circuit-breakers+air-insulated, three stations isolation, earthed switch, as electric in Eton, Shenyang is vast and boundless really, Beijing is two outstanding etc.The three station isolation of 3 vacuum circuit-breakers+vacuum, earthed switch, as ABB, FDAC etc.Wherein, the scheme that electric and Shenyang, Eton sky really adopts is: upper isolation, upper ground connection+vacuum circuit-breaker, and isolation, ground connection adopt is spiral direct dynamic structure.Beijing is two outstanding, and what adopt is vacuum circuit-breaker+lower isolation, lower ground connection, and isolation, ground connection adopt is rotation disconnecting link formula structure.
Wherein, on October 23rd, 2013, Chinese invention patent application publication No. CN103368096A, a kind of solid insulation ring main unit is disclosed, comprise high-voltage switch gear unit, high-voltage switch gear unit comprises vacuum interrupter and isolation earthing switch device, isolation earthing switch device comprises insulation cavity, insulation cavity is provided with leading-out terminal, earth terminal and the end of incoming cables being electrically connected with described moving conductive rod, in insulation cavity or outside is installed with earthy vacuum switch tube, fixed contact and the earth terminal of earthy vacuum switch tube are electrically connected, its moving contact has ground connection wire connecting portion, the moving contact upper driving of earthy vacuum switch tube is connected with ground connection operating mechanism, in insulation cavity, be also provided with isolation switch, one end of isolation switch is the hinged end being hinged on leading-out terminal, the other end is contact jaw, isolation switch upper driving is connected with driving mechanism.By controlling the on off operating mode of dynamic and static contact in the swing of isolation switch and earthy vacuum switch tube, realize isolation earthing switch device in different operating modes.But the vacuum interrupter of this switch, according to current interruption and safety requirements, takes up room larger, cannot realize volume little, and dielectric strength is high, eco-friendly target.
Utility model content
The purpose of this utility model is to provide a kind of solid insulation ring main unit, and to solve, in prior art, volume is large, insulating capacity is poor, degree of protection is lower, have the not enough problem of potential safety hazard.
The utility model solves the technical scheme that its technical problem adopts:
A solid insulation ring main unit, comprises the cabinet of being assembled by sheet metal, operating mechanism and insulating sleeve is installed in described cabinet from top to bottom successively and is solidified switch module; What insulating sleeve solidified switch module has insulation and obturation bus to connect on loop; Described insulating sleeve solidifies switch module and comprises epoxy resin poured body, vacuum load switch and three station vacuum arc extinguish chambers; The moving contact of vacuum load switch is the cylinder copper rod of electroplate, and fixed contact is that the silver-plated round copper pipe of inner surface is contained in epoxy resin poured body; The combined floodgate cam, the switching-in spring that in epoxy resin poured body, also have dynamic and static Contact Breaking/Making Operations; In operating mechanism, establish energy storage main shaft, energy storage motor connects energy-storage crank arm and connecting lever spring by energy storage main shaft one end, and another end, by vacuum switch tube jack, is inserted drive combined floodgate cam in epoxy resin poured body; In above-mentioned three station vacuum arc extinguish chambers, be provided with polylith grizzly bar projection, and side has 400mm at least on the lower 2the wall of area, its epoxy resin poured body thickness is 2-3mm; The appearance of above-mentioned three station vacuum arc extinguish chambers is planted and is embedded with one deck conduction or semiconductive shielding layer direct reliable ground.
Described insulation and obturation bus comprises hollow copper tubing, in the surperficial compression moulding of hollow copper tubing, has one deck silicon rubber, and the appearance of silastic-layer is also planted and is embedded with one deck conduction or semiconductive shielding layer.
The beneficial effects of the utility model are mainly manifested in: can realize modularized design, can independent assortment between each functional unit cabinet, if scene once road or a phase pole go wrong, can change on the spot easily.Looped network cabinet loop number can increase and decrease at the scene, simple in structure, volume is little.Specific as follows:
1. the utility model has fully phased out SF on structural principle 6gas and corresponding gas tank parts, adopt insulating sleeve to solidify switch block, by insulation and obturation bus, connects each loop, and integral body realizes totally-enclosed all insulation.From manufacturing, phase and phase is separated; From electric, alternate can short circuit.It does not have pressure gas tank, slip-proofing device etc., has really realized non-maintaining.Compare SF 6ring main unit has outstanding anti-adverse environment ability, and under the adverse circumstances such as severe cold, plateau, humidity, high wind sand, adaptability is with the obvious advantage.
2. the on-load switch that the utility model insulating sleeve solidifies in switch module adopts three-stations load switch, adopt cylinder copper rod moving contact and round copper pipe static contact structure, utilize the blow-out of the polylith grizzly bar projection in three station vacuum arc extinguish chambers to coordinate, can realize the instantaneous disjunction of on-load switch, for multistage distribution automation provides safeguard.The utility model is provided with and has 400mm at least in three station vacuum arc extinguish chambers 2the thin-wall face of area, its epoxy resin poured body thickness is 2-3mm; Even if solid insulation ring main unit environmental change produces air pressure, its thin-walled portion is equivalent to relief valve, plays explosion-proof, has guaranteed the safe operation of solid insulation ring main unit.
3. the utlity model has assembling combination structure, flexibility is very strong, has the advantage of Inflatable ring main unit and unit ring main unit concurrently.In service, ring main unit generation problem, can design loop change scheme in time arbitrarily, carries out loop replacing then and there, to user's use, provides great convenience and flexibility, reduces client's operation and maintenance cost.
4. the utility model is also planted and is buried conduction or semiconductive shielding layer in the appearance of three station vacuum arc extinguish chambers, insulation and obturation bus.Be conducive to Electric Field Distribution even, can avoid partial discharge phenomenon, thereby improve the insulation property of solid switch.
Accompanying drawing explanation
Fig. 1 is that insulating sleeve of the present utility model solidifies switch module structural representation.
Fig. 2 is Fig. 1 left view.
Fig. 3 is Fig. 1 vertical view.
Fig. 4 is Fig. 1 upward view.
Fig. 5 is insulation and obturation bus structure schematic diagram of the present utility model.
Fig. 6 is the cross-sectional TV structure enlarged diagram of Fig. 5.
In figure: 1 insulating sleeve solidifies switch module; 2 insulation and obturation buses; 3 epoxy resin poured body; 4 thin-wall face; 5 hollow copper tubings; 6 silastic-layers; 7 conduction or semiconductive shielding layers.
Embodiment
An embodiment for solid insulation ring main unit, comprises the cabinet of being assembled by sheet metal; Operating mechanism and insulating sleeve are installed in described cabinet from top to bottom successively and are solidified switch module 1.
As shown in Fig. 1, Fig. 3, Fig. 4, what insulating sleeve solidified switch module has insulation and obturation bus 2 to connect on loop; Described insulating sleeve solidifies switch module 1 and comprises epoxy resin poured body 3, vacuum load switch and three station vacuum arc extinguish chambers.
The moving contact of described vacuum load switch is the cylinder copper rod of electroplate, and fixed contact is that the silver-plated round copper pipe of inner surface is contained in epoxy resin poured body 3; The combined floodgate cam, the switching-in spring that in epoxy resin poured body 3, also have dynamic and static Contact Breaking/Making Operations; In operating mechanism, establish energy storage main shaft, energy storage motor connects energy-storage crank arm and connecting lever spring by energy storage main shaft one end, and another end, by vacuum switch tube jack, is inserted the interior drive combined floodgate of epoxy resin poured body 3 cam; In above-mentioned three station vacuum arc extinguish chambers, be provided with polylith grizzly bar projection, and as shown in Figure 2, side has 400mm at least on the lower 2the thin-wall face 4 of area, its epoxy resin poured body 3 thickness are 2-3mm; The appearance of above-mentioned three station vacuum arc extinguish chambers is planted and is embedded with one deck conduction or semiconductive shielding layer direct reliable ground.
As shown in Figure 5, Figure 6, described insulation and obturation bus 2 comprises hollow copper tubing 5, in the surperficial compression moulding of hollow copper tubing, has one deck silicon rubber 6, and the appearance of silastic-layer 6 is also planted and is embedded with one deck conduction or semiconductive shielding layer 7.

Claims (2)

1. a solid insulation ring main unit, comprises the cabinet of being assembled by sheet metal; It is characterized in that: operating mechanism and insulating sleeve are installed in described cabinet from top to bottom successively and are solidified switch module (1); What insulating sleeve solidified switch module has insulation and obturation bus (2) to connect on loop; Described insulating sleeve solidifies switch module (1) and comprises epoxy resin poured body (3), vacuum load switch and three station vacuum arc extinguish chambers; The moving contact of vacuum load switch is the cylinder copper rod of electroplate, and fixed contact is that the silver-plated round copper pipe of inner surface is contained in epoxy resin poured body (3); The combined floodgate cam, the switching-in spring that in epoxy resin poured body (3), also have dynamic and static Contact Breaking/Making Operations; In operating mechanism, establish energy storage main shaft, energy storage motor connects energy-storage crank arm and connecting lever spring by energy storage main shaft one end, and another end, by vacuum switch tube jack, is inserted drive combined floodgate cam in epoxy resin poured body (3); In above-mentioned three station vacuum arc extinguish chambers, be provided with polylith grizzly bar projection, and side has 400mm at least on the lower 2the thin-wall face of area (4), its epoxy resin poured body (3) thickness is 2-3mm; The appearance of above-mentioned three station vacuum arc extinguish chambers is planted and is embedded with one deck conduction or semiconductive shielding layer direct reliable ground.
2. a kind of solid insulation ring main unit according to claim 1, it is characterized in that: described insulation and obturation bus (2) comprises hollow copper tubing (5), surperficial compression moulding at hollow copper tubing has one deck silicon rubber (6), and the appearance of silastic-layer (6) is also planted and is embedded with one deck conduction or semiconductive shielding layer (7).
CN201420432187.8U 2014-08-02 2014-08-02 A kind of solid insulation ring main unit Withdrawn - After Issue CN203983830U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420432187.8U CN203983830U (en) 2014-08-02 2014-08-02 A kind of solid insulation ring main unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420432187.8U CN203983830U (en) 2014-08-02 2014-08-02 A kind of solid insulation ring main unit

Publications (1)

Publication Number Publication Date
CN203983830U true CN203983830U (en) 2014-12-03

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420432187.8U Withdrawn - After Issue CN203983830U (en) 2014-08-02 2014-08-02 A kind of solid insulation ring main unit

Country Status (1)

Country Link
CN (1) CN203983830U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104112999A (en) * 2014-08-02 2014-10-22 郴州市东塘电气设备有限公司 Solid insulation ring main unit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104112999A (en) * 2014-08-02 2014-10-22 郴州市东塘电气设备有限公司 Solid insulation ring main unit
CN104112999B (en) * 2014-08-02 2016-03-16 郴州市东塘电气设备有限公司 A kind of solid insulation ring main unit

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Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
AV01 Patent right actively abandoned

Granted publication date: 20141203

Effective date of abandoning: 20160316

C25 Abandonment of patent right or utility model to avoid double patenting