CN2437029Y - Switching switch for dry type loaded distributing switch - Google Patents
Switching switch for dry type loaded distributing switch Download PDFInfo
- Publication number
- CN2437029Y CN2437029Y CN00212766U CN00212766U CN2437029Y CN 2437029 Y CN2437029 Y CN 2437029Y CN 00212766 U CN00212766 U CN 00212766U CN 00212766 U CN00212766 U CN 00212766U CN 2437029 Y CN2437029 Y CN 2437029Y
- Authority
- CN
- China
- Prior art keywords
- switch
- vacuum
- transformer
- switch tube
- utility
- 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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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/0005—Tap change devices
- H01H9/0038—Tap change devices making use of vacuum switches
Landscapes
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
The utility model relates to a transfer switch for a vacuum on-load tap changer, which can thoroughly solves the problems of turn-to-turn short circuit and burnt transformer. The utility model has the technical proposal that the utility model is provided with a vacuum switch tube (K1) which is connected with one end of a vacuum switch tube (K2); the other end of the vacuum switch tube (K1) is connected with the moving contact of a transfer switch; a fixed contact of the transfer switch is connected with a conductive wire which is connected with an odd tap of a transformer; the other static contact of the transfer switch is connected with a conductive wire which is connected with an even tap of the transformer. The utility model thoroughly solves the problem of turn-to-turn short circuit of the transformer. The utility model has the advantage of low cost.
Description
The utility model relates to a kind of diverter switch of dry vacuum on-load operation switch.
At present; the diverter switch of existing dry vacuum on-load operation switch adopts three vacuum switch tubes; wherein two vacuum switch tubes break down; the capital causes the transformer turn-to-turn short circuit; burn transformer; one cover overcurrent protective device is installed between two vacuum switch tubes, had both been increased cost and also thoroughly do not dealt with problems.
The purpose of this utility model is to provide a kind of diverter switch that can thoroughly solve the transformer turn-to-turn short circuit, burn the dry vacuum on-load operation switch of transformer problem.
The technical solution of the utility model: a kind of diverter switch of dry vacuum on-load operation switch has a vacuum switch tube K
2, a termination of vacuum switch tube has current-limiting resistance, it is characterized in that: also have one and vacuum switch tube K
2The vacuum switch tube K that one end joins
1, vacuum switch tube K
1The other end connect the conversion switch moving contact, a fixed contact of change over switch is connected to the lead that is connected with transformer odd number tap, another fixed contact of change over switch is connected to the lead that is connected with transformer even numbers tap.
Advantage of the present utility model: can thoroughly solve the transformer turn-to-turn short circuit, burn the transformer problem, every vacuum switch tube and of saving mutually overlaps overcurrent protective device, thereby has reduced cost.
Narrate embodiment of the present utility model in conjunction with the accompanying drawings.
Fig. 1 is a fundamental diagram of the present utility model;
Fig. 2 is the fundamental diagram in the utility model handoff procedure;
Fig. 3 finishes fundamental diagram behind the switch operating for the utility model;
Fig. 4 is a structural representation of the present utility model;
Fig. 5 is the end view of the utility model structural representation.
As shown in Figure 1, has a vacuum switch tube K
2, a termination of vacuum switch tube has current-limiting resistance R, also has one and vacuum switch tube K
2The vacuum switch tube K that one end joins
1, vacuum switch tube K
1The other end connect the conversion switch moving contact G, a fixed contact G of change over switch
1Be connected to the lead that is connected with transformer odd number tap, link to each other with transformer the 3rd tap in the present embodiment, another fixed contact G of change over switch
2Be connected to the lead that is connected with the even numbers tap of transformer.
During work, desire realizes that the 3rd tap is converted to the 4th tap, and operation principle is as follows.
Before a, diverter switch were not moved, electric current I N was through switching tube K
1, contact G, G
1Flow to transformer the 3rd tap;
B, as shown in Figure 2, the even numbers tap is transformed into the 4th tap by second tap, and electric current I N is still through switching tube K
1, contact G, G
1Flow to transformer the 3rd tap.
C, diverter switch action are with switching tube K
2Connect, owing to filter the effect of resistance R, load current IN is still by change over contact G
1, G and vacuum switch tube K
1Flow to transformer the 3rd tap, simultaneously switching tube K
1, K
2Circulation is arranged between the vacuum tube, because the filtration resistance R is arranged, in order to avoid the short circuit of transformer internal wiring burns out transformer.
D, diverter switch continue action, with vacuum switch tube K
1Disconnect change over contact G
1, G disconnects, this moment, load current IN was through vacuum switch tube K
2And resistance R flows out.
E, diverter switch continue action, with contact G
2, G connects, and then with vacuum switch tube K
1Connect, because the metering function of resistance R, at this moment load current is by switching tube K
1, change over contact G
2, G flows out.
F, diverter switch continue action, with vacuum switch tube K
2Disconnect, load current IN is by vacuum switch tube K
1, change over contact G
2, G flows out, the shunting switch action finishes.
Implementing the aforementioned techniques scheme can have multiple structural design, and the concrete structure of present embodiment is, as shown in Figure 4, has a reciprocating insulation axle 1 of energy, and the insulation axle is gone up every 2,3, two cams of two cams that are equipped with mutually of correspondence can drive two vacuum switch tube K
1, K
2Break-make also is equipped with moving contact G, moving contact and fixed contact G on the insulation axle
1, G
2Match, concrete operation principle as previously mentioned.
Claims (2)
1, a kind of diverter switch of dry vacuum on-load operation switch has a vacuum switch tube (K
2), a termination of vacuum switch tube has current-limiting resistance, it is characterized in that: also have one and vacuum switch tube (K
2) vacuum switch tube (K that joins of an end
1), vacuum switch tube (K
1) the other end connect the conversion switch moving contact, a fixed contact of change over switch is connected to the lead that is connected with transformer odd number tap, another fixed contact of change over switch is connected to the lead that is connected with transformer even numbers tap.
2, the diverter switch of vacuum on-load operation switch according to claim 1, it is characterized in that: have one and can turn round reciprocating insulation axle, on the insulation axle two cams that can make two vacuum switch tube break-makes are housed, on the insulation axle moving contact that matches with two fixed contacts are housed also.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00212766U CN2437029Y (en) | 2000-07-24 | 2000-07-24 | Switching switch for dry type loaded distributing switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00212766U CN2437029Y (en) | 2000-07-24 | 2000-07-24 | Switching switch for dry type loaded distributing switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2437029Y true CN2437029Y (en) | 2001-06-27 |
Family
ID=33579208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN00212766U Expired - Fee Related CN2437029Y (en) | 2000-07-24 | 2000-07-24 | Switching switch for dry type loaded distributing switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2437029Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102208265A (en) * | 2011-03-01 | 2011-10-05 | 中国农业大学 | On-load tapping switch of composite switching-type transformer |
| CN104681322A (en) * | 2013-11-27 | 2015-06-03 | Abb研究有限公司 | Tapping point converter |
| CN109243880A (en) * | 2018-10-30 | 2019-01-18 | 浙江腾龙电器有限公司 | Dry type, which has, carries vacuum voltage-regulation tap changer |
| CN112071672A (en) * | 2020-07-22 | 2020-12-11 | 中国电力科学研究院有限公司 | Vacuum on-load tap-changer transition device and switching method of transition device |
-
2000
- 2000-07-24 CN CN00212766U patent/CN2437029Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102208265A (en) * | 2011-03-01 | 2011-10-05 | 中国农业大学 | On-load tapping switch of composite switching-type transformer |
| CN104681322A (en) * | 2013-11-27 | 2015-06-03 | Abb研究有限公司 | Tapping point converter |
| CN109243880A (en) * | 2018-10-30 | 2019-01-18 | 浙江腾龙电器有限公司 | Dry type, which has, carries vacuum voltage-regulation tap changer |
| CN109243880B (en) * | 2018-10-30 | 2024-05-28 | 浙江腾龙电器有限公司 | Dry-type on-load vacuum air-conditioner voltage tapping switch |
| CN112071672A (en) * | 2020-07-22 | 2020-12-11 | 中国电力科学研究院有限公司 | Vacuum on-load tap-changer transition device and switching method of transition device |
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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 |