CN200956361Y - Outdoor high-voltage AC drop-out fuse - Google Patents
Outdoor high-voltage AC drop-out fuse Download PDFInfo
- Publication number
- CN200956361Y CN200956361Y CN 200620065439 CN200620065439U CN200956361Y CN 200956361 Y CN200956361 Y CN 200956361Y CN 200620065439 CN200620065439 CN 200620065439 CN 200620065439 U CN200620065439 U CN 200620065439U CN 200956361 Y CN200956361 Y CN 200956361Y
- Authority
- CN
- China
- Prior art keywords
- link rod
- fusion tube
- base
- travel switch
- outdoor high
- 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
Links
Abstract
The utility model discloses an outdoor high-voltage AC lapse fuse, which includes an upper static contact seat, a lower contact seat, a support insulator, a fuse tube, an upper movable contact head and a lower movable contact head. An insulation link pole is arranged between the fuse tube and the seat and near the lower contact seat. On end of the link pole is arranged at the contact crutch wheel of the contact travel switch of the seat, and the other end is contacted with the fuse tube. The fuse tube is interlocked with the link pole. When the fuse tube is released, the link pole will also be released under the force of a spring, actuating the travel switch and giving out a short-phase signal. The utility model solves the problem of that fusing of a single phase of the breaker may lead to short-phase operation of the main transformer without alarming. The utility model is characterized in simple structure, rapid response, reliable short-phase protection and more effective protection of power equipments.
Description
Technical field
The utility model relates to the short circuit and the overload protection arrangement of Allocation transformer system, particularly a kind of outdoor high-voltage alternating current fuse switch.
Background technology
Present normally used outdoor high-voltage alternating current fuse switch; break down mutually when making fuse blows in certain of electric line A in service, B, C three-phase; the two-phase fuse does not fuse in addition; cause the transformer phase-deficient operation, have a strong impact on electric line safety and power supply quality, the patent No. is the patent of 98231809.X; a kind of outdoor high-voltage open phase protection fuse switch has also been proposed; but the patented product complex structure, sensitivity are not high, and transmission mechanism damages easily.
Summary of the invention
The purpose of this utility model is to provide a kind of improved outdoor high-voltage alternating current fuse switch, solves the problem that the single-phase fusing of fuse causes the main transformer phase-deficient operation and can't report to the police; simple in structure; be quick on the draw, open phase protection is reliable, more effectively protects power equipment.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of outdoor high-voltage alternating current fuse switch, comprise two ends be positioned at static contact seat and down touch base fusion tube, be fixed in the post insulator of base, be provided with an insulation link rod at close touch base place down between fusion tube and the base, link rod one end is positioned at the shake-up of base contacting travel switch and turns wheel, other end contact fusion tube is provided with one and makes the link rod lower end break away from the spring that wheel is turned in shake-up when fusion tube gets loose on the link rod.
The beneficial effects of the utility model are: by the insulation link rod is set; one end in contact of fusion tube and link rod, wheel is turned in the shake-up of link rod other end contacting travel switch, and fusion tube and link rod form interaction relation; when fusion tube is thrown off; under the spring force effect, getting loose of link rod can make the travel switch action, sends phase failure signal; simple in structure; be quick on the draw, open phase protection is reliable, more effectively protects power equipment.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is that A-A of the present utility model is to view;
Among the figure 1, base, 2, post insulator, 3, upper connecting terminal, 4, go up static contact seat, 5, go up moving contact, 6, fusion tube, 7, lower moving contact, 8, touch base down, 9, lower connecting terminal, 10, spring, 11, support plate, 12, link rod, 13, protective cover, 14, the shaft shoulder.
Embodiment
As shown in Figure 1, the utility model embodiment comprises static contact seat 4, following touch base 8, two post insulators 2, fusion tube 6, last moving contact 5, lower moving contact 7, one end of two post insulators 2 is fixed on above the base of making of channel-section steel 1, the fixing respectively static contact seat 4 of going up of the other end of two post insulators 2 reaches touch base 8 down, last static contact seat 4 reaches down, and touch base 8 is fuse pipe assemblies---fusion tube 6, last moving contact 5, the fixed installation position and the contact position of lower moving contact 7, last static contact seat 4 is connected with upper connecting terminal 3, following touch base 8 is connected with lower connecting terminal 9, the fuse pipe assembly is compressed by the spring force of last static contact seat 4, be provided with an insulation link rod 12 at close touch base 8 places down between fusion tube 6 and the base 1, link rod 12 1 ends are positioned at the shake-up of base 1 contacting travel switch and turn wheel, other end contact fusion tube 6, link rod 12 these ends pass the perforation on the support plate 11 that is fixed in post insulator 2, flexibly connect with support plate 11, link rod 12 has a shaft shoulder 14 near fusion tube 6 places, between the shaft shoulder 14 and support plate 11, be with a spring 10 on the link rod 12, push fusion tube 6 open when normal condition lower spring power is unlikely, and this spring can make the disengaging shake-up of link rod 12 lower ends turn wheel when fusion tube 6 gets loose.Travel switch place protective cover 13 the insides and be fixed on together base 1 channel-section steel below.
When the utility model uses, 6 pairs of link rod 12 1 ends of fusion tube are exerted pressure, making link rod 12 other ends and the shake-up of travel switch turn wheel contacts, spring 10 pressurizeds shrink, when being subjected to the fuse circuit fusing of external force effect or fusion tube 6 the insides, fusion tube will fall, releasing is to the pressure of link rod 12, spring 10 is owing to the pressure releasing produces resilience, cause link rod 12 under the active force of spring 10, wheel is turned in the shake-up that link rod 12 other ends break away from the travel switch, touches and turns the normally-closed contact closure that wheel resets and makes the travel switch connection circuit, send sub-gate signal for on-load switch or circuit breaker, make on-load switch or breaker open operation locking.Travel switch of the present utility model can be the travel switch of JLXK1-111 model.
Claims (4)
1, a kind of outdoor high-voltage alternating current fuse switch, comprise two ends be positioned at static contact seat (4) and down touch base (8) fusion tube (6), be fixed in the post insulator (2) of base (1), it is characterized in that locating to be provided with an insulation link rod (12) at close touch base (8) down between fusion tube (6) and the base (1), link rod (12) one ends are positioned at the shake-up of base (1) contacting travel switch and turn wheel, other end contact fusion tube (6) is provided with one and breaks away from the spring (10) that wheel is turned in shake-up when fusion tube (6) makes link rod (12) lower end when getting loose on the link rod (12).
2, outdoor high-voltage alternating current fuse switch according to claim 1, it is characterized in that link rod (12) contact fusion tube (6) one ends pass the perforation on the support plate (11) that is fixed in post insulator (2), flexibly connect with support plate (11), link rod (12) locates to have a shaft shoulder (14) near fusion tube (6), and link rod (12) is gone up and be with a spring (10) between the shaft shoulder (14) and support plate (11).
3, outdoor high-voltage alternating current fuse switch according to claim 1 and 2, it is characterized in that travel switch place protective cover (13) the inside and be fixed on together base (1) below.
4, outdoor high-voltage alternating current fuse switch according to claim 3 is characterized in that travel switch can be the travel switch of JLXK1-111 model.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620065439 CN200956361Y (en) | 2006-10-10 | 2006-10-10 | Outdoor high-voltage AC drop-out fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620065439 CN200956361Y (en) | 2006-10-10 | 2006-10-10 | Outdoor high-voltage AC drop-out fuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200956361Y true CN200956361Y (en) | 2007-10-03 |
Family
ID=38774945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620065439 Expired - Fee Related CN200956361Y (en) | 2006-10-10 | 2006-10-10 | Outdoor high-voltage AC drop-out fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200956361Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107022661A (en) * | 2017-06-21 | 2017-08-08 | 重庆科技学院 | A kind of blast furnace collapses protector |
-
2006
- 2006-10-10 CN CN 200620065439 patent/CN200956361Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107022661A (en) * | 2017-06-21 | 2017-08-08 | 重庆科技学院 | A kind of blast furnace collapses protector |
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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 |