CN201294346Y - Metal-shielding removal metal closed switch apparatus - Google Patents
Metal-shielding removal metal closed switch apparatus Download PDFInfo
- Publication number
- CN201294346Y CN201294346Y CNU200820215720XU CN200820215720U CN201294346Y CN 201294346 Y CN201294346 Y CN 201294346Y CN U200820215720X U CNU200820215720X U CN U200820215720XU CN 200820215720 U CN200820215720 U CN 200820215720U CN 201294346 Y CN201294346 Y CN 201294346Y
- Authority
- CN
- China
- Prior art keywords
- contact box
- circuit breaker
- room
- box mounting
- mounting panel
- 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.)
- Expired - Lifetime
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Abstract
The utility model relates to an armored withdrawable metal sealed switch device, which belongs to the technical field of indoor power distribution devices. The armored withdrawable metal sealed switch device comprises a cabinet body and a withdrawable component, wherein the cabinet body is separated by a clamp plate into a circuit breaker room, a bus bar room, a cable room and an instrument room, a circuit breaker is arranged in the circuit breaker room, contact boxes are arranged between the bus bar room and the circuit breaker room, and between the circuit breaker room and the cable room, valve mechanisms are arranged on vertical columns on two sides of the cabinet body, the armored withdrawable metal sealed switch device is characterized by further comprising a contact box mounting plate, wherein the contact box mounting plate is fixed on the clamp plate and the vertical column, and the middle portion of the contact box mounting plate is convex to the direction far away from the circuit breaker to form a mounting convex surface. The armored withdrawable metal sealed switch device has the advantages that the armored withdrawable metal sealed switch device with the grade of 24KV rated voltage can not generate discharge breakdown phenomena in 65KV power frequency breakdown tests in one minute, and the operation is safe and reliable, and the structure is simple.
Description
Technical field
The utility model relates to a kind of armored withdraw type metal enclosed switchgear; the indoor ac metal closing switch gear of particularly a kind of armored withdraw type of 24kV grade of rated voltage; be used for receiving and distribute electric energy and circuit is protected and detected, belong to the indoor distribution technical field.
Background technology
The indoor ac metal closing switch gear of armored withdraw type of the 24kV grade of rated voltage of domestic production at present, its version all is directly to change from the mid-cabinet of the metal armouring of 10kV grade of rated voltage, promptly bear one minute 50kV power frequency withstand test though can satisfy the IEC standard-required, but when system is an isolated neutral or during through grounding through arc, national standard requires switchgear can bear one minute 65kV power frequency withstand test, and above-mentioned directly changes and the switchgear that comes can not satisfy the 65kV industrial frequency withstand voltage and requires from the mid-cabinet of the metal armouring of 10kV grade of rated voltage.
Summary of the invention
In view of the problem that exists in the above-mentioned prior art, task of the present utility model be to provide a kind of simple in structure, safe and reliable to operation, can satisfy the requirement of 65kV industrial frequency withstand voltage and armored withdraw type metal enclosed switchgear that be applicable to the 24kV grade of rated voltage.
Task of the present utility model is finished like this, a kind of armored withdraw type metal enclosed switchgear, comprise cabinet 1 and can remove the parts two large divisions, described cabinet 1 is separated into breaker chamber 3 by clamping plate 2, bus-bar room 4, cable vault 5, with control room 6, be provided with circuit breaker 31 in the breaker chamber 3, between bus-bar room 4 and the breaker chamber 3, and be provided with the contact box 7 that is used to form conductive channel between breaker chamber 3 and the cable vault 5, and on the column 11 of cabinet 1 two sides, be provided with the valve mechanism 8 that has been used for safe buffer action, be characterized in: also include a contact box mounting panel 9, this contact box mounting panel 9 is fixed on described clamping plate 2 and the column 11, is formed with an installation convex surface 91 that is used to install described contact box 7 to protruding away from the direction of circuit breaker 31 in the centre of contact box mounting panel 9.
The utility model is formed with around described contact box mounting panel 9 and is used for the mounting lug 92 fixing with clamping plate 2, column 11, and offers contact box installing hole 911 on the installation convex surface 91 in the middle of the described contact box mounting panel 9.
The material of guide plate 81 described in the utility model, guide rod 82 is nonmetallic materials.
Nonmetallic materials described in the utility model are epoxies material or SMC insulating material etc.
The beneficial effects of the utility model: because the installation convex surface 91 on the contact box mounting panel 9 protrudes to the direction away from circuit breaker 31, increased the distance between circuit breaker 31 and the contact box installation convex surface 91 like this, improved electric field between the two, the discharge breakdown phenomenon can not take place in the 65kV power frequency withstand test at one minute in the armored withdraw type metal enclosed switchgear that has guaranteed the 24kV grade of rated voltage, and is safe and reliable to operation and simple in structure.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is a contact box mounting panel of the present utility model front scheme of installation.
Fig. 3 is a contact box mounting plates structure schematic diagram of the present utility model.
Fig. 4 is the scheme of installation of circuit breaker of the present utility model, contact box mounting panel and a box that gets an electric shock.
Fig. 5 is electrified body, the contact box on the circuit breaker of the present utility model, the scheme of installation of contact box mounting panel.
Fig. 6 is the structural representation of valve mechanism of the present utility model.
Embodiment
By the description of applicant, will help to understand the present invention more, and good effect of the present utility model is embodied more, but embodiment should not be considered as the restriction to some extent to the utility model scheme embodiment.
See also Fig. 1 and in conjunction with Fig. 2, a kind of armored withdraw type metal enclosed switchgear, comprise cabinet 1 and can remove the parts two large divisions, described cabinet 1 is separated into breaker chamber 3 by clamping plate 2, bus-bar room 4, cable vault 5, with control room 6, be provided with circuit breaker 31 in the breaker chamber 3, between bus-bar room 4 and the breaker chamber 3, and be provided with contact box 7 between breaker chamber 3 and the cable vault 5, can form conductive channel by contact box 7, valve mechanism 8 is installed on the column 11 of cabinet 1 two sides, isolate by the practicable safety of valve mechanism 8, the contact box mounting panel 9 that is used to install contact box 7 is fixed on clamping plate 2 and column 11.
Please continue to consult Fig. 1 and in conjunction with Fig. 3, Fig. 4, Fig. 5, the centre of described contact box mounting panel 9 is formed with an installation convex surface 91 that is used to install contact box 7, this is installed convex surface 91 and protrudes to the direction away from circuit breaker 31, is provided with the contact box installing hole 911 that is used for for contact box 7 insertings between going back on the installation convex surface 91; Be formed with mounting lug 92 around the described contact box mounting panel 9, contact box mounting panel 9 achieves a fixed connection with clamping plate 2, column 11 respectively by mounting lug 92 all around, this version can increase the distance H (as shown in Figure 4) between the installation convex surface 91 of Switch Insulation Cylinder 311 and contact box mounting panel 9, improve electric field between the two, guaranteed in the 65kV power frequency withstand test discharge breakdown phenomenon not to take place, guaranteed safe in utilization at one minute.Simultaneously, guarantee to be installed on the contact box mounting panel 9 contact box 7 near the contact box end face 71 of circuit breaker 31 directions between the installation convex surface 91 of contact box mounting panel 9 apart from M greater than install convex surface 91 to protrude away from circuit breaker 31 directions apart from N, distance L between electrified body on the circuit breaker 312 and the contact box mounting panel 9 is with regard to corresponding growth (as shown in Figure 5) like this, just mean that insulation property between the two are good more and distance is long more, its objective is to increase to enter the electrified body 312 of contact box 7 and the electric clearance between the contact box mounting panel 9, improve security performance.
See also Fig. 1 and in conjunction with Fig. 6, between bus-bar room 4 and the breaker chamber 3, and form conductive channel by contact box 7 between breaker chamber 3 and the cable vault 5, and carry out safe isolation by the valve mechanism on the column 11 that is installed in cabinet 1 two sides 8, valve mechanism 8 is by the guide plate 81 that is installed on the column 11, the guide rod 82 and the valve 83 of movable set on guide rod 82 that are installed on the guide plate 81 constitute, wherein: guide plate 81, the material that guide rod 82 adopts is nonmetallic materials, described nonmetallic materials are epoxies material or SMC insulating material etc., the effect of adopting nonmetallic materials is because guide plate 81, distance between guide rod 82 and the electrified body 312 is closer, if adopt metal material then to be easy to generate electric breakdown phenomena.
Claims (5)
1, a kind of armored withdraw type metal enclosed switchgear, comprise cabinet (1) and can remove the parts two large divisions, described cabinet (1) is separated into breaker chamber (3) by clamping plate (2), bus-bar room (4), cable vault (5), and control room (6), be provided with circuit breaker (31) in the breaker chamber (3), between bus-bar room (4) and the breaker chamber (3), and be provided with the contact box (7) that is used to form conductive channel between breaker chamber (3) and cable vault (5), and on the column (11) of cabinet (1) two sides, be provided with the valve mechanism (8) that has been used for safe buffer action, it is characterized in that also including a contact box mounting panel (9), this contact box mounting panel (9) is fixed on described clamping plate (2) and the column (11), is formed with an installation convex surface (91) that is used to install described contact box (7) to protruding away from the direction of circuit breaker (31) in the centre of contact box mounting panel (9).
2, armored withdraw type metal enclosed switchgear according to claim 1, it is characterized in that being used for and clamping plate (2), the fixing mounting lug (92) of column (11), and on the installation convex surface (91) in the middle of the described contact box mounting panel (9), offer contact box installing hole (911) being formed with all around of described contact box mounting panel (9).
3, armored withdraw type metal enclosed switchgear according to claim 1, it is characterized in that described contact box (7) near the contact box end face (71) of circuit breaker (31) direction between the described installation convex surface (91) apart from M greater than described installation convex surface (91) to protrude away from circuit breaker (31) direction apart from N.
4, armored withdraw type metal enclosed switchgear according to claim 1, it is characterized in that described valve mechanism (8) is made of guide plate (81), guide rod (82) and valve (83), guide plate (81) is installed on the column (11), guide rod (82) is installed on the guide plate (81), and valve (83) is sleeved on that guide rod (82) is gone up and can be up and down.
5, armored withdraw type metal enclosed switchgear according to claim 4 is characterized in that the material of described guide plate (81), guide rod (82) is nonmetallic materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820215720XU CN201294346Y (en) | 2008-11-07 | 2008-11-07 | Metal-shielding removal metal closed switch apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820215720XU CN201294346Y (en) | 2008-11-07 | 2008-11-07 | Metal-shielding removal metal closed switch apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201294346Y true CN201294346Y (en) | 2009-08-19 |
Family
ID=41007827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820215720XU Expired - Lifetime CN201294346Y (en) | 2008-11-07 | 2008-11-07 | Metal-shielding removal metal closed switch apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201294346Y (en) |
-
2008
- 2008-11-07 CN CNU200820215720XU patent/CN201294346Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090819 |