CN2802803Y - Box-type high-tension switch cubicle device suitable for 40.5KV class voltage - Google Patents
Box-type high-tension switch cubicle device suitable for 40.5KV class voltage Download PDFInfo
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- CN2802803Y CN2802803Y CN 200520034414 CN200520034414U CN2802803Y CN 2802803 Y CN2802803 Y CN 2802803Y CN 200520034414 CN200520034414 CN 200520034414 CN 200520034414 U CN200520034414 U CN 200520034414U CN 2802803 Y CN2802803 Y CN 2802803Y
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- contact
- support frame
- type high
- isolating switch
- electric pressure
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Abstract
The utility model discloses a box type high-voltage switch cabinet device which is suitable for the voltage level of 40.5KV. In the utility model, the 40.5KV voltage-level switch cabinet uses a contact cutter rotating type isolating switch; separating brake and closing of a switch are consequently realize by rotating a contact cutter. Contact heads are respectively installed on the upper side and the lower side of the switch cabinet, the middle part is separated by a spacer plate, therefore a charged part is completely separated from an uncharged part in the switch cabinet; when high voltage current strikes the air, the switch cabinet can be earthed by an earthing device so as to ensure the safety of maintainers. The spatial structure of the contact cutter rotating type isolating switch is enlarged in order to adapt the 40.5KV voltage-level switch cabinet; insulation levels are improved, the requirement that the 40.5KV voltage-level switch cabinet is used for a transmission and distribution network in a plurality of areas in China is met, and security is improved.
Description
Technical field
The utility model relates to a kind of indoor high-voltage isolating switch device, and particularly relating to a kind of electric pressure is the box type high-voltage control box arrangement of 40.5KV.
Background technology
At present, in electric pressure is in the box type high-voltage switch cubicle of 40.5KV, what adopt is the box-like isolating switch of lock, because this isolating switch does not have earth terminal, connect at certain air of high-tension current puncture in particular cases, safety to the maintainer threatens, and this switch can't play real high pressure isolates.In present domestic box type high-voltage switch cubicle, the isolating switch that generally adopt in its 12KV field is GN30-12 series (old standard GN30-10), and this is a kind of isolating switch that rotates the contact knife formula.Switch main body is to be fixed on the switch underframe upper and lower surfaces by two groups of insulators, is separated fully by the dividing plate that is fixed on the switch frame between the upper and lower surfaces, thereby realizes the separating brake and the combined floodgate of switch by rotating contact knife.Because contact is installed in respectively on the upper and lower surfaces of switch cubicle, its live part and not charged part is separated in switch cubicle fully, thereby guarantee maintenance personal's safety.
Yet the three-phase insulation against ground of this isolating switch of GN30-12 distance and phase insulation distance are less, can not bear 95KV1 minute industrial frequency withstand voltage, the isolation fracture insulation distance is also less, can not bear 105KV1 minute industrial frequency withstand voltage, does not use so be suitable for the electric pressure of 40.5KV.And the box switch cubicle structure of the box switch cubicle of 40.5KV and 12KV is totally different, even if therefore the existing isolating switch that rotates the contact knife formula is improved, also can't directly use in the box type high-voltage switch cubicle of 40.5KV.
In addition, the rotation contact knife and the insulation column upper contact head of the isolating switch of existing rotation contact knife formula are planar structure, and its way of contact is the face contact, if will work the box type high-voltage switch cubicle that is applied to 40.5KV, to bring resistance big, and rotate to turn round and refuse to operate problems such as dumb greatly.
Summary of the invention
It is the security hidden trouble of the box type high-voltage switch cubicle existence of 40.5KV that the utility model is intended at electric pressure, it is the box type high-voltage control box arrangement of 40.5KV that a kind of electric pressure that is applicable to is provided, the utility model improves on the basis of 40.5KV level switch cabinet at control box arrangement, and adopt rotation contact knife formula isolating switch, solved the security hidden trouble that 40.5KV box type high-voltage switch cubicle exists effectively.
For solving the problems of the technologies described above, the technical scheme that the utility model adopted is as follows:
A kind of electric pressure that is applicable to is the box type high-voltage control box arrangement of 40.5KV, its body structure comprises cable vault, breaker chamber, it is characterized in that: the breaker chamber upper end is provided with bus-bar room, the inlet wire of bus-bar room is connected with the end of incoming cables contact of last isolating switch, the leading-out terminal contact is connected with following isolating switch end of incoming cables contact through circuit breaker, the current transformer of breaker chamber, and the leading-out terminal of following isolating switch is connected with lightning arrester with the outlet cable; Described upper and lower isolating switch is a rotary contact formula isolating switch, its structure comprises a support frame, be installed in the support frame upper and lower surface and at the insulation column of the support frame left and right sides, between the insulation column of the left and right sides in the support frame, through the rotation contact knife of rotating shaft and support frame flexible connection, described end of incoming cables contact, leading-out terminal contact are located at insulation column end up and down respectively; Described support frame is provided with grounding contact, is connected with grounding contact when the rotation contact knife rotates to off-state.
The insulation column height of described isolating switch is 300-400mm.
Described insulation column and rotation contact knife are set to three-phase respectively, are arranged side by side on the support frame, and its three-phase spaced apart is 300-500mm.
The arcing distance of described rotation contact knife is 300-400mm.
Described support frame is provided with dividing plate, and bus-bar room and breaker chamber separate through dividing plate.
Described dividing plate is a metallic plate, and described grounding contact is connected with dividing plate.
Described rotation contact knife comprises insulating sleeve and the contact knife that contacts with the insulation column upper contact head, and described contact knife is a cylindricality, bends to a cambered surface respectively outward with two contact front ends of the insulation column contact of its coupling.
The beneficial effects of the utility model show:
The utility model has used rotation contact knife formula isolating switch on 40.5KV electric pressure switch cubicle, switch main body is to be fixed on the switch underframe upper and lower surfaces by two groups of insulators, separate fully by the dividing plate that is fixed on the switch frame between the upper and lower surfaces, thereby realize the separating brake and the combined floodgate of switch by rotating contact knife.Because contact is installed in respectively on the upper and lower surfaces of switch cubicle, the middle part is cut off by dividing plate, and its live part and not charged part are separated in switch cubicle fully, and when high-tension current punctures air, can be by earthing device with its ground connection, thus maintenance personal's safety guaranteed.And in order to adapt to 40.5KV electric pressure switch cubicle, increased rotation contact knife formula isolating switch space structure, improved insulation level, and the structure of switch cubicle has been done corresponding improvement, satisfy the use of the box switch cubicle of 40.5KV in transmission and distribution network of the vast region of China, improved fail safe.
Description of drawings
Fig. 1 is the utility model planar structure schematic diagram
Fig. 2 is rotation contact knife formula isolating switch closure state structural representation
Fig. 3 is rotation contact knife formula isolating switch off-state structural representation
Fig. 4 is rotation contact knife formula isolating switch side structure schematic diagram
Fig. 5 is the plan structure schematic diagram of rotation contact knife and insulation column contact contact condition
Embodiment
The utility model proposes a kind of electric pressure that is applicable to is the box type high-voltage control box arrangement of 40.5KV.As shown in Figure 1, its body structure comprises cable vault 1, bus-bar room 2, breaker chamber 3, the inlet wire of bus-bar room 2 is connected with the end of incoming cables contact of last isolating switch 4, the leading-out terminal contact is connected with following isolating switch 7 end of incoming cables contacts through circuit breaker 5, the current transformer 6 of breaker chamber 3, and the leading-out terminal of following isolating switch 7 is connected with lightning arrester 9 with outlet cable 8; As Fig. 2-shown in Figure 5, described upper and lower isolating switch is a rotary contact formula isolating switch, its structure comprises a support frame 10, be installed in support frame 10 upper and lower surfaces and at the insulation column 11 of the support frame left and right sides, between left and right sides insulation column 11 in the support frame 10, through the rotation contact knife 13 that rotating shaft 12 and support frame 10 flexibly connect, described end of incoming cables contact, leading-out terminal contact are located at insulation column end up and down respectively; Described support frame 10 is provided with grounding contact 14, is connected with grounding contact 14 when rotation contact knife 13 rotates to off-state, and described support frame 10 is provided with dividing plate 15, and bus-bar room 2 separates through dividing plate 15 with breaker chamber 3.Described dividing plate 15 is a metallic plate, and grounding contact 14 is connected with dividing plate 15, and grounding contact is provided with earthed switch 16.Described rotation contact knife comprises insulating sleeve 17 and the contact knife 19 that contacts with insulation column upper contact head 18, and described contact knife is a cylindricality, bends to a cambered surface respectively outward with two contact front ends of the insulation column contact 18 of its coupling, and adopts compression spring 20 fastening.
The utility model changes the shape and structure of former rotation contact knife formula isolating switch.Increase space discharge in insulation distance and improve insulation level, make it can bear 95-105KV1 minute industrial frequency withstand voltage, reach the instructions for use of 40.5KV electric pressure.
Concrete measure is:
(1) changes insulation column height, (H as shown in Figure 2)
GN30-40.5 insulation column height is 300-400mm.
(2) change A.B.C three-phase phase spacing (W as shown in Figure 1)
The GN30-40.5 spaced apart is 300-500mm.
(3) the material end, insulation village that changes rotation contact knife outer wrap fixing arcing distance of the metal parts of contact knife (L as shown in Figure 3) to the rotary main shaft
GN30-40.5 arcing distance 300-400mm
With height above sea level is that 1000 meters instructions for use is an example:
(1) will be highly for 6 branches of insulation column of 350mm be fixedly mounted on the framework both sides for two groups, on edge edge pillar, fixed contact is installed, make A.B.C three-phase spaced apart reach 350mm (as accompanying drawing 1W).
(2) contact knife is installed on the rotating shaft, making contact knife insulating material termination is 350mm to the fixing arcing distance of the rotary main shaft metal parts of contact knife, and the contact knife disjunction is with after earthing conductor is connected, and dividing the distance of fracture is 350mm (as accompanying drawing 3a)
Through above-mentioned setting, after contact knife closes a floodgate,, satisfied the whole insulation against ground requirement of the utility model because of the insulation column height has reached 350mm.Same spaced apart and branch fracture satisfy dimensional requirement, also just satisfy the atmospherical discharges required distance, just can bear 95-105KV1 minute industrial frequency withstand voltage, reach the instructions for use of 40.5KV electric pressure.
And in the support frame plane of rotation contact knife formula isolating switch, dividing plate is set, bus-bar room and breaker chamber is separated (breaker chamber and cable vault only being arranged, no bus-bar room in the existing switch cubicle), on the operating space, realize isolating, guaranteed personal security.
Claims (7)
1, a kind of electric pressure that is applicable to is the box type high-voltage control box arrangement of 40.5KV, its body structure comprises cable vault (1), breaker chamber (3), it is characterized in that: breaker chamber (3) upper end is provided with bus-bar room (2), the inlet wire of bus-bar room is connected with the end of incoming cables contact of last isolating switch (4), the leading-out terminal contact is connected with following isolating switch (7) end of incoming cables contact through circuit breaker (5), the current transformer (6) of breaker chamber (3), and the leading-out terminal of following isolating switch (7) is connected with lightning arrester (9) with outlet cable (8); Described upper and lower isolating switch is a rotary contact formula isolating switch, its structure comprises a support frame (10), be installed in support frame (1) upper and lower surface and be positioned at the support frame left and right sides insulation column (11), be positioned at support frame between the left and right sides insulation column (11), through the rotation contact knife (13) that rotating shaft (12) and support frame flexibly connect, described end of incoming cables contact, leading-out terminal contact are located at insulation column end up and down respectively; Described support frame is provided with grounding contact (14), and rotation contact knife (13) is connected with grounding contact (14) when rotating to off-state.
2, the electric pressure that is applicable to according to claim 1 is the box type high-voltage control box arrangement of 40.5KV, and it is characterized in that: the insulation column height of described isolating switch is 300-400mm.
3, the electric pressure that is applicable to according to claim 1 is the box type high-voltage control box arrangement of 40.5KV, it is characterized in that: described insulation column and rotation contact knife are set to three-phase respectively, be arranged side by side on the support frame, its three-phase spaced apart is 300-500mm.
4, the electric pressure that is applicable to according to claim 1 is the box type high-voltage control box arrangement of 40.5KV, and it is characterized in that: the arcing distance of described rotation contact knife is 300-400mm.
5, the electric pressure that is applicable to according to claim 1 is the box type high-voltage control box arrangement of 40.5KV, and it is characterized in that: described support frame is provided with dividing plate (15), and bus-bar room and breaker chamber separate through dividing plate (15).
6, the electric pressure that is applicable to according to claim 5 is the box type high-voltage control box arrangement of 40.5KV, and it is characterized in that: described dividing plate is a metallic plate, and described grounding contact is connected with dividing plate.
7, the electric pressure that is applicable to according to claim 1 is the box type high-voltage control box arrangement of 40.5KV, it is characterized in that: described rotation contact knife comprises insulating sleeve (17) and the contact knife (19) that contacts with insulation column upper contact head (18), described contact knife is a cylindricality, bend to a cambered surface respectively outward with two contact front ends of the insulation column contact of its coupling, and fastening through compression spring (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520034414 CN2802803Y (en) | 2005-06-08 | 2005-06-08 | Box-type high-tension switch cubicle device suitable for 40.5KV class voltage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520034414 CN2802803Y (en) | 2005-06-08 | 2005-06-08 | Box-type high-tension switch cubicle device suitable for 40.5KV class voltage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2802803Y true CN2802803Y (en) | 2006-08-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520034414 Expired - Fee Related CN2802803Y (en) | 2005-06-08 | 2005-06-08 | Box-type high-tension switch cubicle device suitable for 40.5KV class voltage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2802803Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103430268A (en) * | 2011-03-11 | 2013-12-04 | 西门子公司 | Switch disconnector arrangement |
| CN114974980A (en) * | 2022-06-29 | 2022-08-30 | 浙江杭升电气科技有限公司 | Regulating switch |
-
2005
- 2005-06-08 CN CN 200520034414 patent/CN2802803Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103430268A (en) * | 2011-03-11 | 2013-12-04 | 西门子公司 | Switch disconnector arrangement |
| CN103430268B (en) * | 2011-03-11 | 2016-01-13 | 西门子公司 | Isolation switch device |
| CN114974980A (en) * | 2022-06-29 | 2022-08-30 | 浙江杭升电气科技有限公司 | Regulating switch |
| CN114974980B (en) * | 2022-06-29 | 2024-05-28 | 浙江杭升电气科技有限公司 | Adjusting switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060802 |