CN200950417Y - Vacuum circuit breaker of solid sealed outdoor high-voltage phase control synchronous permanent-magnetic mechanism - Google Patents
Vacuum circuit breaker of solid sealed outdoor high-voltage phase control synchronous permanent-magnetic mechanism Download PDFInfo
- Publication number
- CN200950417Y CN200950417Y CN 200620127478 CN200620127478U CN200950417Y CN 200950417 Y CN200950417 Y CN 200950417Y CN 200620127478 CN200620127478 CN 200620127478 CN 200620127478 U CN200620127478 U CN 200620127478U CN 200950417 Y CN200950417 Y CN 200950417Y
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- permanent magnet
- magnet mechanism
- fixed
- insulation
- vacuum circuit
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Abstract
The utility model relates to a sealed vacuum circuit breaker for outdoor high-voltage phased sync permanent magnet mechanism. The upper end of the base is provided with three insulation outer shells with the same internal structure, the permanent magnet mechanism is fixed inside on the lower end of the insulation outer shell, one end of the power output shaft of the permanent magnet mechanism is connected with the high-intensity insulation pull rod, the other end of the insulation pull rod is hinged on the moving feeler lever in the vacuum arc extinguish chamber, the moving feeler lever is fixed on the lower output terminal in soft connection, the vacuum arc extinguish chamber is fixed on the upper end of the insulation outer shell and the static contact of the vacuum arc extinguish chamber is electrically connected with the upper input terminal. The base is provided with a bracket on the lower end, the bracket with a control box, the control box with PLC, CPU single-chip-microcomputer, current, a voltage phase detector and a control circuit, and the control circuit is electrically connected with the coil of the permanent magnet mechanism. The utility model can carry out synchronous on and off, avoid inrush current and voltage in operation, shorten the transient process of power system and improve the power quality and the stability of power system.
Description
(1), technical field
The utility model relates to a kind of sealed type outdoor high-tension phase control synchronous permanent magnetic structure vacuum circuit-breaker; be applicable to industrial and mining enterprises, power plant and electric substation's control and protection rated frequency 50Hz; the three-phase alternating current electric capacity load of rated voltage 12kV, 40.5kV, 126kV electric pressure and the usefulness of inductive load are particularly useful for opening-closing capacitor bank, transformer, reactor and other need the occasion of frequent operation.
(2), background technology
At present, the outdoor vacuum circuit breaker of domestic 12kV and above electric pressure adopts the spring energy-storage operating mechanism more, and invests outside the breaker body.Because its mechanism's complexity, middle transmission link is many, in addition can not integral sealing, and make and adhere to dirt or the serious operating mechanism of corrosion easily produces misoperation or " getting stuck " malfunctioning phenomenon, influence normal power supply.A major issue of primary cut-out is exactly when suiting inductive or capacity load, transient voltage can occur and shoves more greatly.This is not only unfavorable to the insulation system of power equipment, can cause that also protective device produces misoperation, influences the stability of electric power system.
(3), summary of the invention
In order to overcome the shortcoming of prior art, the utility model provides a kind of sealed type outdoor high-tension phase control synchronous permanent magnetic structure vacuum circuit-breaker, it can implement synchronous break-make, shoving and overvoltage when avoiding producing operation, shorten the transient process of electric power system, improve the stability of the quality of power supply and electric power system.
The technical scheme in the invention for solving the technical problem is: three insulation crusts are fixed in the upper end of pedestal, the structure of three insulation crust inside is identical, lower end in the insulation crust is permanent magnet mechanism fixedly, one end of the power output shaft of permanent magnet mechanism connects the high strength insulated tension pole, the other end of insulated tension pole is hinged on the movable feeler lever of vacuum interrupter, movable feeler lever is fixed on lower wire end by being flexible coupling, vacuum interrupter is fixed on the upper end in the insulation crust, and the fixed contact of vacuum interrupter fixedly is electrically connected with last end of incoming cables lid; The lower end fixed support of pedestal, fixing control cabinet on the support is equipped with PLC, CPU single-chip microcomputer, electric current, voltage-phase detector and control circuit in the control cabinet, and control circuit is electrically connected with the coil of described permanent magnet mechanism.
Vacuum interrupter and permanent-magnet operating mechanism are coupled as one, encapsulate with solid insulating material, can implement synchronous break-make, this circuit breaker is compact conformation, reliable not only, the deduction and exemption maintenance, and can be at load of different nature, detect the voltage/current phase angle of every phase, adopt PLC and CPV monolithic processor control device, make switch, implement separating brake, combined floodgate the paying good branch most, close the phase angle of predetermined load characteristic.Shoving and overvoltage when this just can be avoided producing operation, the transient process of shortening electric power system improves the stability of the quality of power supply and electric power system.
(4), description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the utility model front view;
Fig. 2 attempts for the utility model left side.
(5), embodiment
As shown in Figure 1, 2, the upper end of pedestal 1 structure of fixing 2, three insulation crust 2 inside of three insulation crusts by upper and lower flange 14,15 is identical.Lower end in every insulation crust 2 is permanent magnet mechanism 5 fixedly, the upper end of the power output shaft 6 of permanent magnet mechanism 5 connects high strength insulated tension pole 7, the upper end of insulated tension pole 7 is hinged on the movable feeler lever 10 of vacuum interrupter 11, and movable feeler lever 10 9 is fixed on lower wire end 8 by being flexible coupling.Vacuum interrupter 11 is fixed on the upper end in the insulation crust 2, and the fixed contact 12 of vacuum interrupter 11 fixedly is electrically connected with last end of incoming cables lid 13.The lower end of described each permanent magnet mechanism 5 is stretched into pedestal 1 and is connected with manual emergency switching-off device 16, and a manual brake separating bar 4 and three divide-shut brake pointers 3 are arranged on the manual emergency switching-off device 16.Under the state of emergency, pull manual brake separating bar 4, control three phase mains can be cut off simultaneously.The lower end fixed support 18 of pedestal 1, fixing control cabinet 17 on the support 18 is equipped with PLC, CPU single-chip microcomputer, electric current, voltage-phase detector and control circuit in the control cabinet 17, and control circuit is electrically connected with the coil of described permanent magnet mechanism.
The material of described insulation crust 2 is resin compounded silicon rubber or high-strength ceramic, and 9 the material of being flexible coupling is silver-plated red copper foil.
Claims (4)
1, a kind of sealed type outdoor high-tension phase control synchronous permanent magnetic structure vacuum circuit-breaker, it is characterized in that: three insulation crusts (2) are fixed in the upper end of pedestal (1), the structure of three insulation crusts (2) inside is identical, lower end in the insulation crust (2) is permanent magnet mechanism (5) fixedly, one end of the power output shaft (6) of permanent magnet mechanism (5) connects high strength insulated tension pole (7), the other end of insulated tension pole (7) is hinged on the movable feeler lever (10) of vacuum interrupter (11), movable feeler lever (10) is fixed on lower wire end (8) by be flexible coupling (9), vacuum interrupter (11) is fixed on the upper end in the insulation crust (2), and the fixed contact (12) of vacuum interrupter (11) covers (13) with last end of incoming cables and fixedly is electrically connected; The lower end fixed support (18) of pedestal (1), support (18) is gone up fixedly control cabinet (17), PLC, CPU single-chip microcomputer, electric current, voltage-phase detector and control circuit are housed in the control cabinet (17), and control circuit is electrically connected with the coil of described permanent magnet mechanism (11).
2, vacuum circuit-breaker according to claim 1 is characterized in that: the lower end of described permanent magnet mechanism (5) is connected with the manual emergency switching-off device, and manual switching-off device has a manual brake separating bar (4) and three divide-shut brake pointers.
3, vacuum circuit-breaker according to claim 1 is characterized in that: the material of described insulation crust (2) is resin compounded silicon rubber or high-strength ceramic.
4, vacuum circuit-breaker according to claim 1 is characterized in that: the material of described be flexible coupling (9) is silver-plated red copper foil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620127478 CN200950417Y (en) | 2006-08-26 | 2006-08-26 | Vacuum circuit breaker of solid sealed outdoor high-voltage phase control synchronous permanent-magnetic mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620127478 CN200950417Y (en) | 2006-08-26 | 2006-08-26 | Vacuum circuit breaker of solid sealed outdoor high-voltage phase control synchronous permanent-magnetic mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200950417Y true CN200950417Y (en) | 2007-09-19 |
Family
ID=38892958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620127478 Expired - Fee Related CN200950417Y (en) | 2006-08-26 | 2006-08-26 | Vacuum circuit breaker of solid sealed outdoor high-voltage phase control synchronous permanent-magnetic mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200950417Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102983017A (en) * | 2012-11-27 | 2013-03-20 | 北京电研华源电力技术有限公司 | Three-position switch |
-
2006
- 2006-08-26 CN CN 200620127478 patent/CN200950417Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102983017A (en) * | 2012-11-27 | 2013-03-20 | 北京电研华源电力技术有限公司 | Three-position 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070919 Termination date: 20120826 |