CN2472336Y - Automatic vacuum voltage load switch on post - Google Patents
Automatic vacuum voltage load switch on post Download PDFInfo
- Publication number
- CN2472336Y CN2472336Y CN 01213082 CN01213082U CN2472336Y CN 2472336 Y CN2472336 Y CN 2472336Y CN 01213082 CN01213082 CN 01213082 CN 01213082 U CN01213082 U CN 01213082U CN 2472336 Y CN2472336 Y CN 2472336Y
- Authority
- CN
- China
- Prior art keywords
- load switch
- operating mechanism
- seal case
- vacuum interrupter
- voltage
- 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 a switch, belonging to a vacuum automatic load switch of voltage pole-arranged, which is characterized in that the output of a current transformer (CT) is connected in parallel with a resistance (R1) and meanwhile connected with the input of a rectifier (Rf2); the output of the rectifier (Rf2) is connected with a closing coil (CC) of an operating mechanism; the operating mechanism is connected with an insulating axis; the operating mechanism, a vacuum interrupter driving separation-integration circuit and a vacuum interrupter are all fixed in a sealed box filling with zero pressure SF6 gas; the outer of a load switch sealing box is fixedly connected with an arrester electrically connected with each phase. The utility model has the advantages of high reliability, good sealing performance; meanwhile, the device can reduce accident and avoid lightning strike effectively.
Description
The utility model is a kind of automatic load switch of the 10KV of being used for feeder line, particularly a kind of voltage-type pole vacuum automatic load switch.
The 10KV vacuum automatic load switch adopts manual operation more in the prior art, can grasp by electricity individually, switch is taked to close, switching winding is controlled respectively, and operating mechanism and switch partial installation, be unfavorable for the sealing of switch and mechanism, do not possess the measure of the on-load switch of preventing mistake disjunction short circuit current.Serious accident may take place when operating a switch in the short circuit current mistake occurring greatly, and heat-stable current only reaches 12.5KA usually, and 2 seconds, limit breaking current 2KA, no lightning Protection measure is difficult to reach the instructions for use of distribution feeder automation system.
The purpose of this utility model is to overcome the defective of above-mentioned existence, proposes a kind of voltage-type pole vacuum automatic load switch, its reliability height, and good seal performance can the minimizing accident take place, and can effectively protect thunderbolt.
The technical solution of the utility model is: a kind of voltage-type pole vacuum automatic load switch, it comprises operating mechanism, current transformer, seal case, vacuum interrupter, zero gauge pressure SF6 gas, lightning arrester, insulation axle, voltage transformer, control interface, it is characterized in that: the output-parallel resistance R 1 of current transformer, be connected with rectifier bridge Rf2 input simultaneously, rectifier bridge Rf2 output is connected with the closing coil CC of operating mechanism; Operating mechanism connects the insulation axle, close the branch circuit to drive vacuum interrupter, operating mechanism, driving vacuum interrupter close branch circuit and vacuum interrupter, in the seal case of the gauge pressure that zeroizes in all being fixed on SF6 gas, be connected with and the lightning arrester that respectively is electrically connected in the external stability of on-load switch seal case.
Described on-load switch seal case both sides are fixedly connected with voltage transformer, gathering line voltage distribution, and provide operating power for switch and controller; In on-load switch seal case bottom the special-purpose control interface of reservation is arranged.
Advantage of the present utility model:
1, operating mechanism, driving vacuum interrupter close branch circuit and vacuum interrupter, and in the seal case of the gauge pressure that zeroizes in all being fixed on SF6 gas, overall tightness is good, effectively prevent the moisture intrusion, improve the reliability of complete machine.
Not disjunction when 2, utilizing the current transformer feedback technique to make on-load switch flow through the 2KA short circuit current avoids the unexpected mistake of on-load switch to divide the serious accident that short circuit current caused.
3, the outside every phase configuration lightning arrester of on-load switch casing effectively protects indirect lightning strike.
4, voltage transformer is installed in the on-load switch both sides, is convenient to gather voltage and provides the operation energy for on-load switch.
5, the gauge pressure SF6 gas that zeroizes in the on-load switch casing, the vacuum interrupter arc extinguishing, the dielectric strength height, the load interrupting performance is superior, heat-stable current 16KA, 4S, life-span 10000 times.
6, reserve the power distribution automation interface, for the flexible Application of structural design and modular construction provides condition.
Below in conjunction with the embodiment accompanying drawing the utility model being done a step describes.
Accompanying drawing 2 is vertical views of embodiment.
Accompanying drawing 3 is embodiment control loop structural representations.
Among the figure: 1, lightning arrester; 2, current transformer CT; 3, zero gauge pressure SF6 gas; 4, seal case; 5, vacuum interrupter; 6, voltage transformer; 7, insulation axle; 8, control interface; 9, operating mechanism; 10, rectifier bridge RF2; 11, closing coil CC.
As shown in Figure 3, the current transformer 2 that each is provided with mutually, by secondary side parallel resistance R1, input to the closing coil 11 of operating mechanism 9 through rectifier bridge 10, when this main circuit of load switch A, B, C flow through the above short circuit current of 2KA and control loop terminal A, B decompression arbitrarily mutually, keep the on-load switch closure non-shut-brake.As shown in Figures 2 and 3: operating mechanism 9 is fixed in this on-load switch seal case 4, close the branch circuit by what insulation axle 7 drove vacuum interrupters 5, and the seal case 4 of the gauge pressure SF6 gas 3 that zeroizes in whole the placing, overall tightness is good like this, effectively prevent the moisture intrusion, the outside lightning arrester 1 that respectively is provided with mutually is to do the indirect lightning strike protection, seal case 4 both sides of switch are provided with voltage transformer 6 and gather line voltage distribution, and provide operating power for switch and controller, special-purpose control interface 8 is reserved in seal case 4 bottoms of switch, for the flexible Application of structural design and modular construction provides condition.Apply control voltage between terminal A, B, closing coil 11 gets electric, and switch closes a floodgate, charged maintenance, decompression separating brake.
Claims (2)
1, a kind of voltage-type pole vacuum automatic load switch, it comprises operating mechanism, current transformer, seal case, vacuum interrupter, zero gauge pressure SF6 gas, lightning arrester, insulation axle, voltage transformer, control interface, it is characterized in that: the output-parallel resistance (R1) of current transformer (CT), be connected with rectifier bridge (Rf2) input simultaneously, rectifier bridge (Rf2) output is connected with the closing coil (CC) of operating mechanism; Operating mechanism connects the insulation axle, close the branch circuit to drive vacuum interrupter, operating mechanism, driving vacuum interrupter close branch circuit and vacuum interrupter, in the seal case of the gauge pressure that zeroizes in all being fixed on SF6 gas, be connected with and the lightning arrester that respectively is electrically connected in the external stability of on-load switch seal case.
2, a kind of voltage-type pole vacuum automatic load switch according to claim 1 is characterized in that: described on-load switch seal case both sides are fixedly connected with voltage transformer, gathering line voltage distribution, and provide operating power for switch and controller; In on-load switch seal case bottom the special-purpose control interface of reservation is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01213082 CN2472336Y (en) | 2001-02-28 | 2001-02-28 | Automatic vacuum voltage load switch on post |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01213082 CN2472336Y (en) | 2001-02-28 | 2001-02-28 | Automatic vacuum voltage load switch on post |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2472336Y true CN2472336Y (en) | 2002-01-16 |
Family
ID=33632136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01213082 Expired - Lifetime CN2472336Y (en) | 2001-02-28 | 2001-02-28 | Automatic vacuum voltage load switch on post |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2472336Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101814400A (en) * | 2010-03-22 | 2010-08-25 | 郑逸扬 | Automatic high-voltage circuit breaker |
| CN101635224B (en) * | 2009-01-07 | 2012-05-09 | 浙江中意电气有限公司 | Manual and electrical integral operating mechanism of 10KV vacuum circuit breaker |
| CN101635223B (en) * | 2009-01-07 | 2012-07-18 | 浙江中意电气有限公司 | 10KV vacuum circuit breaker |
| CN102915869A (en) * | 2012-09-28 | 2013-02-06 | 宁波鑫鑫鑫寅电气有限公司 | Milliampere-level current release |
| CN104538243A (en) * | 2015-01-27 | 2015-04-22 | 浙江群力电气有限公司 | Vacuum load switch |
-
2001
- 2001-02-28 CN CN 01213082 patent/CN2472336Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101635224B (en) * | 2009-01-07 | 2012-05-09 | 浙江中意电气有限公司 | Manual and electrical integral operating mechanism of 10KV vacuum circuit breaker |
| CN101635223B (en) * | 2009-01-07 | 2012-07-18 | 浙江中意电气有限公司 | 10KV vacuum circuit breaker |
| CN101814400A (en) * | 2010-03-22 | 2010-08-25 | 郑逸扬 | Automatic high-voltage circuit breaker |
| CN102915869A (en) * | 2012-09-28 | 2013-02-06 | 宁波鑫鑫鑫寅电气有限公司 | Milliampere-level current release |
| CN102915869B (en) * | 2012-09-28 | 2015-11-18 | 宁波鑫鑫鑫寅电气有限公司 | A kind of milliampere level current release |
| CN104538243A (en) * | 2015-01-27 | 2015-04-22 | 浙江群力电气有限公司 | Vacuum load 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 | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20110228 Granted publication date: 20020116 |