CN2772009Y - High-voltage tripolar vacuum contactor - Google Patents
High-voltage tripolar vacuum contactor Download PDFInfo
- Publication number
- CN2772009Y CN2772009Y CN 200520068548 CN200520068548U CN2772009Y CN 2772009 Y CN2772009 Y CN 2772009Y CN 200520068548 CN200520068548 CN 200520068548 CN 200520068548 U CN200520068548 U CN 200520068548U CN 2772009 Y CN2772009 Y CN 2772009Y
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- voltage
- pull bar
- conducting rod
- moving
- contact
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Abstract
The utility model relates to a vacuum contactor, particularly a high-voltage tripolar vacuum contactor which is suitable for high-power frequently switching. According to the design proposal offered by the utility model, a drawing rod is connected to a conductive rod of a vacuum switch tube, and the lower end of the drawing rod is connected with a split-combination board, the other end of which is connected with a moving armature in an L-shaped structure. Besides, the split-combination board and a connecting part of the moving armature are hinged on a rotating shaft, and the other end of the moving armature is connected with a branch gate spring, the other end of which is connected with a fixed armature arranged on a casing or the casing. An iron core is connected with the fixed armature, and the outside of the iron core is provided with a coil. The moving armature is positioned at the other end of the iron core. The utility model can be used for enlarging the range of application of the contactor, and the mechanical service life can be prolonged.
Description
Technical field
The utility model relates to vacuum contactor, specifically a kind of high-voltage three-pole vacuum contactor that is applicable to high-power frequent switching.
Background technology
In the capacitive load of 40.5KV grade, the most frequent with the filter capacitor switching of steel-making intermediate frequency furnace, because at present therefore the vacuum contactor rated operational voltage of producing, adopts the circuit breaker control of 40.5KV generally all below 10KV basically.The capacitive load of circuit breaker, switching performance are relatively good, but its disadvantage is that the life-span is short, especially can't adapt to a large amount of frequent switchings.
Summary of the invention
The purpose of this utility model is to design a kind of high-voltage three-pole vacuum contactor, to enlarge the scope of application of contactor, the useful life of prolonged mechanical.
According to design provided by the utility model, cylinder lever connecting rod on the conducting rod of vacuum switch tube, the lower end of pull bar connects divides plywood, divides the other end and the moving armature of plywood to connect into L type structure, and, divide the connecting portion of plywood and moving armature to be articulated in the rotating shaft, the other end of moving armature connects tripping spring, and the other end of tripping spring is connected with static gag bit or case on being installed on case, connects iron core on static gag bit, coil is arranged outside iron core, and moving armature is positioned at the other end of iron core.
Overlap touch spring on pull bar, the lower end of touch spring contacts with the spring packing ring that touches on being installed on pull bar, and upper end and conducting rod or the packing ring that is installed on the conducting rod lower end or is installed on pull bar top contact.Upper surface at minute plywood and pull bar connecting portion is provided with spherical, this spherical with touch the following of spring packing ring and contact.
Install on pull bar or conducting rod and be flexible coupling, the other end that is flexible coupling is connected with moving electricity row on being installed on vacuum switch tube or case.The upper end of conducting rod is positioned at vacuum switch tube, connects moving contact, the fixed contact that the corresponding position setting in vacuum switch tube can contact with moving contact in the upper end of conducting rod.Holding connector bank on case.
The utility model can be applicable to the control of common electric equipment, also can be used for the frequent switching of high pressure low volume electric capacity.The most frequent with the filter capacitor switching of steel-making intermediate frequency furnace in the capacitive load of 40.5KV grade at present, be to control basically in existing scheme with the circuit breaker of 40.5KV, though circuit breaker is incomparable in the performance of capacitive load switching, but its maximum shortcoming is that the life-span is short, be unable to cope with a large amount of frequent switchings, and the utility model just in time adapts to the frequent control mode of this kind, has the long outstanding advantage that is fit to frequent switching mechanical endurance.
1.JCZ3-40.5KV/630A light and handy, the reliable operation of type high-voltage three-pole vacuum contactor design.In electric power system, be applicable to occasions such as frequent operation, control.Structurally every independently frame structure that is designed to mutually, every alternate safety air interval that has, also be unlikely to cause phase fault just in case there is phase vacuum switch tube gas leakage that restrike of arc takes place, and general mesolow vacuum contactor mostly is the general frame structure, and just very easily burning framework causes phase fault in case there is phase vacuum switch tube gas leakage that restrike of arc takes place.Operating current can be to 630A in the electric power system of common 40.5KV for this contactor.
2. structurally adopted coil clapper-type version, this relatively simple for structure, and reliable operation.
3. the dynamic/static contact of critical piece vacuum switch tube is opened apart from reaching more than 15 millimeters in this contactor, its rated operational voltage of vacuum contactor that present domestic enterprise is produced is all below 12KV, dynamic/static contact is opened apart from h1 below 7 millimeters, see Fig. 3, the h among Fig. 2 is for dividing the excess of stroke of 12 of plywood 11 and separation-integration washers.
4. this contactor electric clearance is greater than 300 millimeters, and creepage distance is greater than 810 millimeters, and the electric clearance of the vacuum contactor of rated operational voltage 12KV is 125 millimeters, 240 millimeters of creepage distances.
5. the main insulating part of this contactor has adopted high pressure SMC long fibre moulded plastic press forming, and in order to obtain smaller volume satisfying under the prerequisite of electric property, the insulating part profile all is processed into corrugated.
6. the vacuum switch tube external insulation adopts undulatory silicon rubber to seal admittedly, and the volume of vacuum switch tube is greatly reduced, thereby can make the whole height of vacuum contactor design lowlyer.
Description of drawings
Fig. 1 is a structure chart of the present utility model.
Fig. 2 is the contact condition schematic diagram of moving contact and fixed contact.
Fig. 3 is the released state schematic diagram of moving contact and fixed contact.
Embodiment
As shown in the figure: cylinder lever connecting rod 8 on the conducting rod 14 of vacuum switch tube 5, the lower end of pull bar 8 connects divides plywood 11, divide the other end and the moving armature 1 of plywood 11 to connect into L type structure, and, divide the plywood 11 and the connecting portion of moving armature 1 to be articulated in the rotating shaft 17, the other end of moving armature 1 connects tripping spring 4, the other end of tripping spring 4 is connected with static gag bit 3 or case 13 on being installed on case 13, on static gag bit 3, connect iron core 21, coil 2 is arranged outside iron core 21, and moving armature 1 is positioned at the other end of iron core 2.
Among the figure 18 is framework, and 12 is separation-integration washer.
When needs are separated from each other moving contact 20 and fixed contact 19, disconnect the power supply of coil 2, L shaped moving armature 1 disappears with the magnetic force that divides plywood 11 because of coil 2, under the effect of tripping spring 4,17 clockwise rotate around the shaft, divide the outer end of plywood 11 that pull bar 8 is past drop-down, pull bar 8 drives conducting rod 14 and moves down, and the moving contact 20 that is positioned at conducting rod 14 upper ends is separated with fixed contact 19.
When needs moving contact 20 and fixed contact 19 closures, the power supply of closing coil 2, the magnetic force that coil and iron core produce 17 rotates counterclockwise moving armature 1 around the shaft, the outer end pushing drawing rod 8 of branch plywood 11 is moved up, pull bar 8 drives conducting rod 14 and moves up, and makes moving contact 20 and fixed contact 19 closures.
Claims (6)
1, the high-voltage three-pole vacuum contactor, it is characterized in that: the conducting rod (14) in vacuum switch tube (5) is gone up cylinder lever connecting rod (8), the lower end of pull bar (8) connects divides plywood (11), divide the other end and the moving armature (1) of plywood (11) to connect into L type structure, and, divide the plywood (11) and the connecting portion of moving armature (1) to be articulated in the rotating shaft (17), the other end of moving armature (1) connects tripping spring (4), the other end of tripping spring (4) is connected with static gag bit (3) or case (13) on being installed on case (13), go up connection iron core (21) at static gag bit (3), coil (2) is arranged outside iron core (21), and moving armature (1) is positioned at the other end of iron core (21).
2, according to the described high-voltage three-pole vacuum contactor of claim 1, it is characterized in that: go up cover touch spring (9) at pull bar (8), the lower end of touch spring (9) contacts with the spring packing ring (16) that touches on being installed on pull bar (8), and upper end and conducting rod (14) or the packing ring that is installed on conducting rod (14) lower end or is installed on pull bar (8) top contact.
3, according to claim 1 or 2 described high-voltage three-pole vacuum contactors, it is characterized in that: the upper surface at a minute plywood (11) and pull bar (8) connecting portion is provided with spherical (15), this spherical (15) and following contact of touching spring packing ring (16).
4, according to the described high-voltage three-pole vacuum contactor of claim 1, it is characterized in that: be flexible coupling (7) at pull bar (8) or last installation of conducting rod (14), the other end of be flexible coupling (7) is arranged (6) with the moving electricity on being installed on vacuum switch tube (5) or case (13) and is connected.
5, according to the described high-voltage three-pole vacuum contactor of claim 1, it is characterized in that: the upper end of conducting rod (14) is positioned at vacuum switch tube (5), upper end at conducting rod (14) connects moving contact (20), the fixed contact (19) that the corresponding position setting in vacuum switch tube (5) can contact with moving contact (20).
6, according to the described high-voltage three-pole vacuum contactor of claim 1, it is characterized in that: go up holding connector bank (10) at case (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520068548 CN2772009Y (en) | 2005-01-22 | 2005-01-22 | High-voltage tripolar vacuum contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520068548 CN2772009Y (en) | 2005-01-22 | 2005-01-22 | High-voltage tripolar vacuum contactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2772009Y true CN2772009Y (en) | 2006-04-12 |
Family
ID=36705799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520068548 Expired - Fee Related CN2772009Y (en) | 2005-01-22 | 2005-01-22 | High-voltage tripolar vacuum contactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2772009Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101604582A (en) * | 2008-06-13 | 2009-12-16 | 施耐德电器工业公司 | The device that is used for controlling and applying contact pressure that is used for the electric switch unit |
| CN101826413B (en) * | 2010-05-14 | 2012-12-12 | 无锡市凯驰电气有限公司 | High-pressure vacuum contactor |
-
2005
- 2005-01-22 CN CN 200520068548 patent/CN2772009Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101604582A (en) * | 2008-06-13 | 2009-12-16 | 施耐德电器工业公司 | The device that is used for controlling and applying contact pressure that is used for the electric switch unit |
| CN101604582B (en) * | 2008-06-13 | 2014-02-26 | 施耐德电器工业公司 | Device for controlling and pressurising a switch for an electric cut-off device |
| CN101826413B (en) * | 2010-05-14 | 2012-12-12 | 无锡市凯驰电气有限公司 | High-pressure vacuum contactor |
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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: 20060412 Termination date: 20140122 |