CN2325898Y - Fixation and sealing type switch cabinet - Google Patents
Fixation and sealing type switch cabinet Download PDFInfo
- Publication number
- CN2325898Y CN2325898Y CN 97234408 CN97234408U CN2325898Y CN 2325898 Y CN2325898 Y CN 2325898Y CN 97234408 CN97234408 CN 97234408 CN 97234408 U CN97234408 U CN 97234408U CN 2325898 Y CN2325898 Y CN 2325898Y
- Authority
- CN
- China
- Prior art keywords
- cabinet
- bus bar
- main
- circuit breaker
- disconnecting link
- 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 fixed sealing switch cabinet of an alternating current switching device. A main bus, a main bus knife switch, a circuit breaker and a current transformer are arranged in a main cabinet; a by-pass bus, a by-pass knife switch, an outlet line knife switch, a cable and an outlet line overhead bracket are arranged in an auxiliary cabinet; the main bus, the main bus knife switch, the circuit breaker, the current transformer, the by-pass bus, the by-pass knife switch, the outlet line knife switch are connected in series through aluminum buses. The utility model has the advantages that when the circuit breaker of the main bus breaks down, the by-pass bus can continuously supply power.
Description
The utility model relates to the switchgear of alternating current, is particularly useful for the switchgear of 35KV alternating current.
Original handcart switch cabinet, its fixed contact and circuit breaker are fixed on the handcart.Roller is equipped with in the handcart bottom, and roller is shelved on the long rails.When handcart promoted forward, dynamic and static contact engaged.Owing to be subjected to the influence of ground level, the joint dimension of dynamic/static contact, requires to be difficult to guarantee to the good interchangeability of moving contact with control when need are changed handcart.Handcart switch cabinet has single busbar connection supply line merely, and when circuit breaker broke down, the switch cubicle of this circuit breaker then can not move.
The purpose of this utility model is to provide a kind of fixed closed switch cabinet in order to overcome above-mentioned weak point, and circuit breaker is directly installed in the switch cubicle, is not provided with dynamic and static contact, does not have the problem of interchangeability difference, does not also have the loose contact problem; Fixed switch cubicle after be interval with hospital bus bar, when the main bus bar circuit breaker broke down, the back was gone up at interval hospital bus bar and is continued power supply, thereby has reduced the loss that brings because of maintenance.
Description of the present utility model is as follows: this switch cubicle is made up of main cabinet and secondary cabinet two large divisions.Main bus bar, main bus bar disconnecting link, circuit breaker and current transformer are housed in main cabinet.The three-phase main bus bar at main cabinet top, is equipped with main bus bar disconnecting link in position, main cabinet upper back by the supporting insulator reversal of the natural order of things, and circuit breaker is installed in main cabinet space before, and current transformer is installed in the back lower place near circuit breaker.Main bus bar, main bus bar disconnecting link, circuit breaker and current transformer are together in series by aluminium busbar.Hospital bus bar, by-pass knife switch, outlet disconnecting link, cable, overhead outlet support are housed in secondary cabinet.Hospital bus bar and by-pass knife switch are installed in the first half of secondary cabinet, and the latter half is equipped with outlet disconnecting link and cable bearer, and the overhead outlet support is installed in behind the secondary cabinet apart from the position of ground more than 2.6 meters.Hospital bus bar, by-pass knife switch, outlet disconnecting link are cascaded by the current transformer in aluminium busbar and the main cabinet, thereby constitute a piece electrical loop.Main female cutter, outlet cutter, other female cutter carry out branch, closing operation by operating mechanism by connecting rod.Under the normal condition, the main bus bar electric current by the main bus bar disconnecting link to circuit breaker again through current transformer to the outlet disconnecting link toward outdoor power supply, circuit breaker plays a part to connect, cuts off, the protection major loop.When circuit breaker met fault and maybe need overhaul, because hospital bus bar directly is connected on the bypass supply, whole outlet power supply changed bypass power supply thus into, promptly electric current directly by hospital bus bar through by-pass knife switch toward outdoor power supply.In this process, circuit is not subjected to the protection of circuit breaker, only is an interim supply power mode.
Description of drawings:
Figure is the structure chart of fixed closed switch cabinet of the present utility model, among the figure: 1-insulator, 2-main bus bar, 3-main bus bar disconnecting link, 4-master's cabinet, 5-insulating barrier, the 6-insulating sleeve, the 7-circuit breaker, 8-supporting insulator, 9-current transformer 10-outlet disconnecting link, the secondary cabinet of 11-, the 12-outlet, 13-by-pass knife switch, 14-hospital bus bar.
With the switch cubicle of 35KV alternating current as embodiment of the present utility model.Fixed closed switch cabinet constitutes cabinet by angle bar and steel plate.The cabinet height is 3300mm, long 3800mm, and wide 1800mm, cabinet was formed by main cabinet (4), secondary cabinet (11) are both most of.The long 2000mm of main cabinet, the long 1800mm of secondary cabinet.Main paying in (4) main bus bar (2), main bus bar disconnecting link (3), circuit breaker (7) and current transformer (9) are housed.Three-phase main bus bar (2) is by the top of insulator (1) reversal of the natural order of things in main cabinet (4).Main bus bar adopts 80 * 10 aluminium row, in position, main cabinet upper back main bus bar disconnecting link (3) is housed, main line line disconnecting link adopts GN27-35 (F), and circuit breaker (7) is installed in main cabinet 4) space before, circuit breaker adopts ZN23-35, and current transformer (9) is together in series by aluminium busbar.Hospital bus bar (14), by-pass knife switch (13), outlet disconnecting link (10), cable rack are housed in secondary cabinet (11) vacate line bracket.Hospital bus bar (14) and by-pass knife switch (13) are installed in the first half of secondary cabinet.Hospital bus bar adopts 80 * 10 aluminium row, and hospital bus bar is connected on the bypass supply.By-pass knife switch adopts GN27-35 (F), and secondary cabinet (11) the latter half is equipped with outlet disconnecting link (10) and cable bearer.The overhead outlet support is installed in secondary cabinet (11) back apart from the position more than the 2600mm of ground, hospital bus bar (14), by-pass knife switch (13), outlet disconnecting link (10) are associated in space before current transformer (9) by aluminium busbar, thereby constitute an electric loop.
Advantage of the present utility model: fixed closed switch cabinet dependable performance, simultaneously because after be interval with other bus, work as the master When the bus breaker broke down, hospital bus bar still can continue power supply, has reduced the loss that brings because of maintenance.
Claims (3)
1. fixed closed switch cabinet that relates to the alternating current switchgear, it is characterized in that in main cabinet, being equipped with main bus bar, main bus bar disconnecting link, circuit breaker and current transformer, main bus bar, main bus bar disconnecting link, circuit breaker and current transformer are together in series by aluminium busbar, hospital bus bar, bypass lock, outlet disconnecting link, cable, overhead outlet support are housed in secondary cabinet, and hospital bus bar, by-pass knife switch, outlet disconnecting link are by the inductance mutual inductor serial in aluminium busbar and the main cabinet together.
2. fixed closed switch cabinet according to claim 1, it is characterized in that main bus bar is hung upside down at main cabinet top by insulator, the main bus bar disconnecting link is contained in position, main cabinet upper back, circuit breaker is installed in main cabinet space before, current transformer is installed in the back lower place near circuit breaker, hospital bus bar and by-pass knife switch are installed in the first half of secondary cabinet, and outlet disconnecting link and cable bearer are installed in the latter half of secondary cabinet.
3. fixed closed switch cabinet according to claim 1 is characterized in that the overhead outlet support is installed in apart from the position of ground more than 2.6 meters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97234408 CN2325898Y (en) | 1997-04-28 | 1997-04-28 | Fixation and sealing type switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97234408 CN2325898Y (en) | 1997-04-28 | 1997-04-28 | Fixation and sealing type switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2325898Y true CN2325898Y (en) | 1999-06-23 |
Family
ID=33945772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97234408 Expired - Fee Related CN2325898Y (en) | 1997-04-28 | 1997-04-28 | Fixation and sealing type switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2325898Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104051177A (en) * | 2013-03-11 | 2014-09-17 | 台达电子工业股份有限公司 | Electrical device and manually operated bypass cabinet, and manually operated isolation knife switch thereof |
-
1997
- 1997-04-28 CN CN 97234408 patent/CN2325898Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104051177A (en) * | 2013-03-11 | 2014-09-17 | 台达电子工业股份有限公司 | Electrical device and manually operated bypass cabinet, and manually operated isolation knife switch thereof |
| CN104051177B (en) * | 2013-03-11 | 2016-06-01 | 台达电子工业股份有限公司 | Electric installation, manual bypass cabinet and manual isolation knife lock thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |