CN101131901A - Torsional spring time-delay pilot switch used for short-time control of high-voltage circuit-breaker - Google Patents
Torsional spring time-delay pilot switch used for short-time control of high-voltage circuit-breaker Download PDFInfo
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- CN101131901A CN101131901A CNA2007100446582A CN200710044658A CN101131901A CN 101131901 A CN101131901 A CN 101131901A CN A2007100446582 A CNA2007100446582 A CN A2007100446582A CN 200710044658 A CN200710044658 A CN 200710044658A CN 101131901 A CN101131901 A CN 101131901A
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- delay
- main shaft
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Abstract
A kind of twisted-spring, time-delay, auxiliary switch used for prolonging short time of high-voltage breaker, and includes dynamic delay contact, passive lock sheet, twisted spring, active lock sheet, baffle, static delay contact, static normal contact, sleeve, spindle, dynamic normal contact, insulating bracket. The spindle is rectangle of its one end and flat of the other side, and long cylinder in central part; the sleeve is set out of the long cylinder of the spindle; the dynamic normal contact and the passive lock sheet are fixed on outside surface of the sleeve; the dynamic normal contact is fixed on the rectangle end of the spindle; the active lock sheet and twisted spring cover the flat end of the spindle; the static delay contact, static normal contact and baffle are fixed on the insulating bracket; delay time is configured by structure parameter of the twisted spring and groove profile parameter of the baffle. The present invention has advantages of simple structure mechanic component, easy to produce, low cost, stable delay, and short time of on-off operation of current high voltage SF6 breaker is effectively controlled.
Description
Technical field
The present invention relates to a kind of time-delay pilot switch of primary cut-out gold short time control, refer to a kind of time-delay pilot switch especially, the control of gold short time when being used for the primary cut-out reclosing with the torque spring energy store tripping mechanism.
Background technology
After the metal short circuit time was meant the circuit breaker reclosing operation, contact closure was separated time of required usefulness to contact for the second time, is called for short " gold short time ".At SF
6In the structure of circuit breaker, be to guarantee the connecting-disconnecting function of second " branchs " in the reclosing, generally require the golden short time to reach certain numerical value, make the operating mode of arc control device have adequate time to change needed state before the separating brake into by making process.Although various switch opening time differences since the golden short time that breadboard equipment adjusted value provides during type approval test at present be 40ms, so dissimilar circuit breakers all is identical to the requirement of gold short time.
Owing to be furnished with the SF of hydraulic actuating mechanism
6The solid minute time of circuit breaker is generally 17ms～20ms, adds system protection 6ms～15ms relay actuation time, adds up to 23ms～35ms.Can't satisfy the requirement of the 40ms that adjusts in the laboratory, require the golden short time of circuit breaker to take reliable measure to realize by circuit breaker self according to state's net, this just requires to realize by concrete mechanical device at circuit breaker itself time-delay of 5ms～17ms.Adopt the torsion spring time-delay pilot switch can satisfy above-mentioned requirements.
Summary of the invention
Technical problem of the present invention is that a kind of prolongation primary cut-out gold short time will be provided, and guarantees high pressure SF
6Circuit breaker closes the golden short time control reliable torsion spring time-delay pilot switch within the limits prescribed of branch operation.
In order to solve above technical problem, the invention provides a kind of torsion spring time-delay pilot switch that is used for the short time control of primary cut-out gold, this switch comprises moving delayed contact, driven card, torsion spring, the active card, baffle plate, quiet delayed contact, quiet common contact, sleeve, main shaft, moving common contact, insulating support, one end of main shaft is square, the other end is cuts flat, the middle part is cylindrical major axis, the cylindrical major axis of main shaft is with a sleeve outward, sleeve outer surface is fixed with moving delayed contact and driven card, the square end of main shaft is fixed with moving common contact, the flat end of cutting of main shaft is with initiatively card and torsion spring, quiet delayed contact, quiet common contact and baffle plate are fixed on the insulating support.
Described quiet delayed contact and described quiet common contact are positioned at the same side of main shaft.
Rotate around main shaft 360 degree described moving delayed contact and moving common contact.
Described baffle plate has at least two draw-in grooves on it, be used for guiding the motion of driven card; Connect for circular arc between two draw-in grooves; Angle between the draw-in groove is 105 degree.
The structural parameters of torsion spring as the draw-in groove parameter of curve of torsion spring diameter, torsion spring steel wire diameter, pitch etc. and baffle plate, as the radius of curvature of circular arc between draw-in groove, have been determined delay time of the present invention.
Auxiliary switch uses very extensive in electrical network, and it is one of crucial element of guaranteeing electric power netting safe running.FK series auxiliary switch can be according to the position, angle of the rotating shaft that connects moving contact of breaker, sends to circuit breaker and is switched on or switched off signal, and interlock protection is switched in the divide-shut brake loop of control circuit breaker.The present invention increases a pair of delayed contact on FK series auxiliary switch, by its mechanical action, reach the effect that time-delay sends the breaker open operation instruction, according to different draw-in groove parameter of curve on the torsion spring of selecting different structural parameters and the baffle plate, control delayed contact about 10ms～17ms connection after the assembling interconnecting closure.
Superior effect of the present invention is: adopt mechanical part simple in structure, easy to make, cost is low, and it is reliable and stable to delay time, and makes to have high pressure SF now
6Circuit breaker closes-and golden short time of minute operation obtains effectively control.
Description of drawings
Fig. 1 is a structure front view of the present invention;
Fig. 2 is an end view of the present invention;
Fig. 3 is a separating brake position view of the present invention;
Fig. 4 is a trigger position schematic diagram of the present invention;
Fig. 5 is a closing position schematic diagram of the present invention;
The number in the figure explanation
1-moves delayed contact; The driven card of 2-;
The 3-torsion spring; 4-is card initiatively;
The 5-baffle plate; The quiet delayed contact of 6-;
The quiet common contact of 7-; The 8-sleeve;
The 9-main shaft; 10-moves common contact;
The 11-insulating support; The 12-draw-in groove.
Embodiment
See also shown in the accompanying drawing, the invention will be further described.
Shown in Fig. 1 structure front view of the present invention and Fig. 2 end view of the present invention, the invention provides a kind of torsion spring time-delay pilot switch that is used for the short time control of primary cut-out gold, this switch comprises moving delayed contact 1, driven card 2, torsion spring 3, active card 4, baffle plate 5, quiet delayed contact 6, quiet common contact 7, sleeve 8, main shaft 9, moving common contact 10, insulating support 11, one end of main shaft 9 is square, the other end is cuts flat, the middle part is cylindrical major axis, the cylindrical major axis of main shaft 9 is with a sleeve outward, sleeve outer surface is fixed with moving delayed contact 1 and driven card 2, the square end of main shaft 9 is fixed with moving common contact 10, the flat end of cutting of main shaft 9 is with initiatively card 4 and torsion spring 3, quiet delayed contact 6, quiet common contact 7 and baffle plate 5 are fixed on the insulating support 11.
Described quiet delayed contact 6 and described quiet common contact 7 are positioned at the same side of main shaft 9.
Described moving delayed contact 1 and moving common contact 10 are made 360 degree around main shaft 9 and are rotated.
Described baffle plate 5 has at least two draw-in grooves 12 on it, be used for guiding the motion of driven card 2; Connect for circular arc between two draw-in grooves 12; Angle between the draw-in groove 12 is 105 degree.
The structural parameters of torsion spring 3 as draw-in groove 12 parameters of curve of torsion spring diameter, torsion spring steel wire diameter, pitch etc. and baffle plate 5, as the radius of curvature of circular arc between draw-in groove, have been determined delay time of the present invention.
Shown in Fig. 3 separating brake position view of the present invention, this moment, quiet delayed contact 6 disconnected, driven card 2 is positioned at the separating brake position draw-in groove 12 of baffle plate 5, during the motion beginning, main shaft 9 drives initiatively, and card 4 moves counterclockwise, rotate thereupon moving common contact 10, in counterclockwise motion process, and torsion spring 3 beginning energy storage; Shown in Fig. 4 trigger position schematic diagram of the present invention, when moving common contact 10 contacts with quiet common contact 7, initiatively card 4 turns over 90 degree and arrives the dropout position, stir the draw-in groove 12 that driven card 2 breaks away from baffle plate 5, torsion spring 3 begins to release energy and does motion clockwise, drives driven card 2 and rotates, driving moving delayed contact 1 contacts with quiet delayed contact 6, driven card 2 enters in another draw-in groove 12 of baffle plate 5, and shown in Fig. 5 closing position schematic diagram of the present invention, the combined floodgate motion process finishes.According to selecting different draw-in groove 12 parameters of curve on the different structural parameters of torsion spring 3 and the baffle plate 5, the closing time of controlling between delayed contact and the common contact is spaced apart 10ms～17ms, has realized controlling the purpose of metal short circuit time.
Claims (6)
1. torsion spring time-delay pilot switch that is used for the control of primary cut-out gold short time, it is characterized in that: this switch comprises moving delayed contact (1), driven card (2), torsion spring (3), active card (4), baffle plate (5), quiet delayed contact (6), quiet common contact (7), sleeve (8), main shaft (9), moving common contact (10), insulating support (11), one end of described main shaft (9) is square, the other end is cuts flat, the middle part is cylindrical major axis, the cylindrical major axis of main shaft (9) is with a sleeve outward, sleeve outer surface is fixed with moving delayed contact (1) and driven card (2), the square end of main shaft (9) is fixed with moving common contact (10), the flat end of cutting of main shaft (9) is with initiatively card (4) and torsion spring (3), quiet delayed contact (6), quiet common contact (7) and baffle plate (5) are fixed on the insulating support (11).
2. by the described a kind of torsion spring time-delay pilot switch that is used for the control of primary cut-out gold short time of claim 1, it is characterized in that: described quiet delayed contact (6) and described quiet common contact (7) are positioned at the same sides of main shaft (9).
3. by the described a kind of torsion spring time-delay pilot switch that is used for the short time control of primary cut-out gold of claim 1, it is characterized in that: described moving delayed contact (1) and moving common contact (10), rotate around main shaft (9).
4. by the described a kind of torsion spring time-delay pilot switch that is used for the short time control of primary cut-out gold of claim 1, it is characterized in that: described baffle plate (5) has at least two draw-in grooves on it.
5. by the described a kind of torsion spring time-delay pilot switch that is used for the short time control of primary cut-out gold of claim 4, it is characterized in that: connect for circular arc between the draw-in groove.
6. by the described a kind of torsion spring time-delay pilot switch that is used for the short time control of primary cut-out gold of claim 4, it is characterized in that: the angle between the draw-in groove is 105 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100446582A CN100559533C (en) | 2007-08-07 | 2007-08-07 | The torsion spring time-delay pilot switch that is used for the control of primary cut-out metal short circuit time |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100446582A CN100559533C (en) | 2007-08-07 | 2007-08-07 | The torsion spring time-delay pilot switch that is used for the control of primary cut-out metal short circuit time |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101131901A true CN101131901A (en) | 2008-02-27 |
| CN100559533C CN100559533C (en) | 2009-11-11 |
Family
ID=39129113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100446582A Expired - Fee Related CN100559533C (en) | 2007-08-07 | 2007-08-07 | The torsion spring time-delay pilot switch that is used for the control of primary cut-out metal short circuit time |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100559533C (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3900810A (en) * | 1974-06-26 | 1975-08-19 | Texas Instruments Inc | Time delay capsule for magnetic circuit breaker |
| US4024482A (en) * | 1975-02-04 | 1977-05-17 | Heinemann Electric Company | Circuit breaker |
-
2007
- 2007-08-07 CN CNB2007100446582A patent/CN100559533C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN100559533C (en) | 2009-11-11 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20091111 Termination date: 20120807 |