CN201149965Y - 18kV and lower lever high-voltage switchgear - Google Patents
18kV and lower lever high-voltage switchgear Download PDFInfo
- Publication number
- CN201149965Y CN201149965Y CNU2007201872169U CN200720187216U CN201149965Y CN 201149965 Y CN201149965 Y CN 201149965Y CN U2007201872169 U CNU2007201872169 U CN U2007201872169U CN 200720187216 U CN200720187216 U CN 200720187216U CN 201149965 Y CN201149965 Y CN 201149965Y
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- China
- Prior art keywords
- handcart
- cart
- circuit breaker
- cabinet
- current
- 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 - Fee Related
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Abstract
The utility model relates to a high-voltage switching device with 18 KV and below, which comprises a cabinet body, a main circuit and a movable cart (8) are arranged in the cabinet body, a circuit breaker is installed on the cart (8), a bolt is used to fixedly connect the circuit breaker and the main circuit on the cart after the cart (8) moves to the right position along a guide rail in the cabinet body, and simultaneously, the position of the cart (8) in the cabinet body is fixed. During the moving, the circuit breaker on the cart is fixedly connected with the main circuit, so that the connection is reliable, the connecting state is visible, the strong capacity of peak withstand current, dropout current, closing current and 4s (3s) short-time withstand current can be borne, the switching current can reach 2.75 times of the short-time withstand current. During the overhaul process, after the bolt for fixing the cart is dissembled, the cart can be pulled out, so that the overhaul is convenient.
Description
Technical field
The utility model relates to high voltage switchgear, and particularly 18kV reaches with subordinate's high voltage switchgear.
Background technology
Current middle and high voltage switching station mainly contains fixed and two kinds of handcart-types.
The major advantage of fixed switchgear is: main components and parts all are fixedly installed in the cabinet, the connection of major loop directly is connected bus with main components and parts with bolt, connect reliable, the peak withstand current that can bear, drop-out current, making current and short time withstand current ability are strong, and it is clear to be used to observe the isolation fracture whether major loop connect.The defective that fixed switchgear exists is: after the circuit breaker fixed installation, be unfavorable for maintenance, have certain risk when overhauling in the maintainer enters cabinet, and the space be narrow and small in the cabinet, be unfavorable for operation, maintainer's labour intensity is big.
The major advantage of handcart-type switch equipment is: circuit breaker is installed on movably on the handcart, forms isolation fracture by moving of handcart, and the handcart equipment of pulling out can conveniently overhaul during maintenance.The defective that handcart-type switch equipment exists is: do not have obvious visible isolation fracture, the reliability that major loop connects need just can reach through meticulous adjustment, during overload operation, the possibility that touch spring lost efficacy under the thermal effect effect increases, unfavorable to the operation of equipment and system, therefore to safeguarding and maintainer's requirement height.
The utility model content
The utility model mainly provides a kind of in conjunction with fixed and handcart-type advantage, connects reliably, and maintenance is convenient, is fit to the switchgear that 18KV and following high-tension circuit use.
The technical scheme of the utility model number employing is: a kind of 18kV reaches with subordinate's high voltage switchgear, comprise cabinet, main loop circuit is arranged in the cabinet, also has movably handcart, circuit breaker is placed on the handcart, handcart is fixed together circuit breaker on the handcart and major loop with bolt after the operation of handcart guide rail puts in place in cabinet, simultaneously the position of handcart in cabinet is fixed.
The utility model circuit breaker and major loop on the handcart when operation is fixedly connected, therefore major loop connects reliable, connection status is directly perceived, the peak withstand current that can bear, drop-out current, making current and 4s (3s) short time withstand current ability is strong, and its switching current can reach 2.75 times of short time withstand current.In when maintenance fixedly after the disassembling bolts of handcart, handcart can be pulled out, maintenance is convenient.
Description of drawings
Fig. 1 is placed in the arrangement at switchgear middle part for handcart.
Fig. 2 is placed in the arrangement of switchgear bottom for handcart.
Mark among the figure: 1-connecting bolt, 2-circuit breaker, 3-connecting bolt, 4-connecting bolt, 5-set bolt, 6-handcart roller, 7-set bolt, 8-handcart.
Embodiment
As shown in Figure 1 and Figure 2, the circuit breaker 2 of switchgear is placed in movably on the handcart 8, handcart 8 is suitable with the handcart guide rail on the cabinet by roller 6, when handcart 8 arrives the service position along guide rail movement, just in time suitable by keeper on the handcart and the keeper on the cabinet, with set bolt 5,7 handcart 8 is fixed, with connecting bolt 1 circuit breaker on the handcart 82 is communicated with major loop simultaneously, circuit breaker 2 is fixed on the handcart 8 by connecting bolt 3, and connecting bolt 4 is communicated with circuit breaker with output loop.The position of handcart 8 in cabinet is fixing, and circuit breaker 2 also is to be connected with bolt with major loop, at this moment promptly enters operating state, and the utility model is equivalent to a fixed switchgear.
When this switchgear need overhaul, can unclamp connecting bolt 1,4 earlier, cut-off breaker 2 is connected with major loop; Pull down set bolt 5,7 again, remove being fixedly connected of handcart 8 and cabinet, handcart 8 can move on the handcart guide rail of cabinet, with handcart 8 pull out cabinet just easily switching devices overhaul, at this moment this switchgear is equivalent to a handcart-type switch equipment again.
Fig. 1 is the arrangement that handcart 8 is placed in the equipment middle part, and Fig. 2 is the arrangement that handcart 8 is placed in device bottom.Circuit breaker 2 on the handcart 8 with guaranteed accurate connection of major loop by high-precision handcart guide rail, in order to meet the requirements of precision, add man-hour at guide rail, earlier, go up grinding machine then, up to meeting the requirements of precision with milling machine processing.When guide rail was installed, guide rail and cabinet were made the location hole mode and are guaranteed that guide rail reaches status requirement by joining.When handcart 8 is placed in equipment when middle part, guide rail will have enough rigidity to guarantee guide rail with thicker steel plate processing, handcart 8 not flexural deformation in the above the time.
Protection range of the present utility model is not limited to above specific embodiment, as long as used above structure, all belongs to protection range of the present utility model.
Claims (6)
1. a 18kV reaches with subordinate's high voltage switchgear, comprise cabinet, main loop circuit is arranged in the cabinet, also has movably handcart, circuit breaker (2) is placed on the handcart (8), it is characterized in that: after handcart (8) put in place along handcart guide rail operation in cabinet, the circuit breaker (2) on the handcart (8) was fixed together with major loop, simultaneously the position of handcart (8) in cabinet is fixed.
2. 18kV according to claim 1 reaches with subordinate's high voltage switchgear, it is characterized in that: described switchgear unclamps bolt (1,4,5,7) when maintenance can pull out this equipment with handcart (8).
3. 18kV according to claim 1 reaches with subordinate's high voltage switchgear, and it is characterized in that: the circuit breaker on the described handcart (2) is to be connected with bolt (1,4) with the fixedly connected of major loop.
4. 18kV according to claim 1 reaches with subordinate's high voltage switchgear, and it is characterized in that: the position of described handcart (8) in cabinet fixed with bolt (5,7).
5. 18kV according to claim 1 reaches with subordinate's high voltage switchgear, it is characterized in that:
Described handcart (8) is positioned at the middle part of switchgear.
6. 18kV according to claim 1 reaches with subordinate's high voltage switchgear, and it is characterized in that: described handcart (8) is positioned at the bottom of switchgear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201872169U CN201149965Y (en) | 2007-12-18 | 2007-12-18 | 18kV and lower lever high-voltage switchgear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201872169U CN201149965Y (en) | 2007-12-18 | 2007-12-18 | 18kV and lower lever high-voltage switchgear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201149965Y true CN201149965Y (en) | 2008-11-12 |
Family
ID=40117736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201872169U Expired - Fee Related CN201149965Y (en) | 2007-12-18 | 2007-12-18 | 18kV and lower lever high-voltage switchgear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201149965Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104317238B (en) * | 2014-09-30 | 2017-01-11 | 国家电网公司 | Automatic control system of 10 kV switch cabinet and transfer vehicle |
-
2007
- 2007-12-18 CN CNU2007201872169U patent/CN201149965Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104317238B (en) * | 2014-09-30 | 2017-01-11 | 国家电网公司 | Automatic control system of 10 kV switch cabinet and transfer vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 610213, No. two, section 1158, Washington Avenue, Huayang Town, Chengdu, Sichuan, Shuangliu County Patentee after: Chuankai Electric Co., Ltd. Address before: 610213 No. 1632 Tianfu Road, Huayang Town, Sichuan, Chengdu Patentee before: China Chuan Kai Electric Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081112 Termination date: 20151218 |
|
| EXPY | Termination of patent right or utility model |