CN2253042Y - Vacuum loaded shunting switch - Google Patents
Vacuum loaded shunting switch Download PDFInfo
- Publication number
- CN2253042Y CN2253042Y CN 96225839 CN96225839U CN2253042Y CN 2253042 Y CN2253042 Y CN 2253042Y CN 96225839 CN96225839 CN 96225839 CN 96225839 U CN96225839 U CN 96225839U CN 2253042 Y CN2253042 Y CN 2253042Y
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- switch
- contact
- utility
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- vacuum
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Abstract
The utility model belongs to a switch with a linear movement operating component, composed of an operating mechanism box, selecting switches and change-over switches. The utility model is suitable for loaded voltage regulating transformers. The utility model is characterized in that the selecting switches and the change-over switches of a same phase are arranged in a switch box. Moreover, a selecting operating rod and a switching operating rod moving along a straight-line are respectively used for selection switching and fast switch over. The operating mechanism box is arranged on a straight-line with switch boxes of every phase. The wire connection of moving contacts of the selecting switches uses a bar-shaped structure. The utility model not only has the advantages of small size and high reliability, but also is suitable for loaded transformers with neutral points or terminal voltage regulation.
Description
The utility model relates to a kind of personal module of power transformer product or claims parts, belongs to the switch with rectilinear motion functional unit again, is applicable to and switches tap and the on-load tap-changing transformer of non-interrupt load electric current.
Existing vacuum on-load operation switch is the switch that belongs to by the angular displacement control of functional unit.Its objective is in static exciter or have and carry out the tap conversion under the state that carries and realize adjusting voltage, i.e. on-load voltage regulation.This switch generally is made up of the control cabinet that contains controller, the transmission mechanism that contains vertical axis and gearcase and trunnion axis, selector switch, diverter switch, quick mechanism etc., and transmission mechanism and selector switch and diverter switch are apart arrangement.Its course of work is: controller is monitored the output voltage of transformer and responsible output order is given motor drive mechanism, and actuating motor slows down after vertical axis, gearcase, trunnion axis drive the machinery conversion mechanism rotation; Machinery conversion mechanism drives the main shaft of selector switch respectively by sheave and gear and the main shaft of diverter switch rotates; At this moment, the moving contact on the selector switch main shaft is to along the concentric insulating cylinder of this main shaft or go the contact of deciding of circle distribution on the support to realize selecting to switch; And diverter switch main shaft drive quick mechanism is finished the quick switching that places the three-phase vacuum contact on the same circumference of insulating cylinder.
The weak point of prior art is:
The three-phase vacuum contact of 1 prior art diverter switch is arranged on the circumference of same insulating cylinder, for guaranteeing the reliability of identical electric insulation, can only strengthen the diameter of insulating cylinder; Simultaneously, the three-phase of selector switch is decided on three circumference that contact is mounted in same insulating cylinder or same pack support, is to guarantee phase insulation distance, the length of can only extend insulating cylinder or support; The control cabinet of prior art, diverter switch and selector switch structurally are apart arrangement.Therefore, not only volume is big, manufacturing cost is high for this switch, and reliability is also low.
2 because the selection of this switch and switching part are the angular displacements of the main shaft by separately realizes, and the moving contact of selector switch places on the main shaft, three-phase moving contact can only be electrically connected together and draw as neutral point, therefore, existing switch only is applicable to the three-phase transformer of star (Y) connection set neutral point pressure regulation, and is not suitable for the transformer of triangle (D) connection set or line end pressure regulation.
The purpose of this utility model is to provide that a kind of volume is little, cost is low, reliability is high, is applicable to the vacuum on-load operation switch of neutral point or line end voltage regulating transformer.
The purpose of this utility model can reach by following measure: it comprises operating mechanism case, selector switch and the diverter switch etc. that contain controller, its special character is: same phase selector switch and diverter switch place in the switch-box, and are selected switching and switched the actuating bar by the selection actuating bar that moves along a straight line respectively to switch fast; The operating mechanism case with each mutually switch-box be that a straight line is arranged, and drive respectively by transmission mechanism and quick mechanism and to select the actuating bar and to switch the actuating bar; The moving contact on line of selector switch can adopt the bus of strip structure.
The utility model is described in further detail below in conjunction with drawings and Examples:
Fig. 1 is the front view of the utility model three-phase embodiment; Fig. 2 is the vertical view of Fig. 1; Fig. 3 is the I-I cutaway view of Fig. 1; Fig. 4 is the utility model-facies principle schematic diagram.
With reference to Fig. 1-4.At base 1 upper edge straight line operating mechanism case 2 and three same switch casees 4 are housed successively, and motor 3 are housed in a side of operating mechanism case 2.Be provided with a phase selector switch 21 and diverter switch 20 in the housing of each switch-box 4.The insulation shell of switch-box 4 by base plate 22, perpendicular to vertical insulating arthropleura 23 of base plate 22, two perpendicular to the horizontal side plate 24 of base plate 22 be fixed on insulating support 9 on the two horizontal side plates 24 etc. and constitute.
Diverter switch 20 in each (phase) switch-box 4 housing is by three vacuum contacts or claim vacuum bubbles 10, lever 8, curve ruler 7, resistance 25 and switching actuating bar 5 etc. to constitute.Three vacuum contacts 10 (K1, K2, K3) are contained in the top of insulating arthropleura plate 23.The lower end hinge of lever 8 is connected the top of insulating support 9, and top is connected with the moving contact 11 of vacuum contact 10, and the upper end is equipped with curve ruler 7.Switching actuating bar 5 runs through and is slidingly connected at two horizontal side plates, 24 tops, and contacts with curve ruler 7.11 of the moving contact of resistance 25 bridge joints between vacuum contact k1 and k2.
Selector switch 21 in each (phase) switch-box 4 housing is decided contact 12 (T1, T3, T5 by odd number ...) even numbers decides contact 13 (T2, T4, T6 ...), odd number moving contact 14, even numbers moving contact 15, odd number bus 16, even numbers bus 17 and select composition such as actuating bar 6.Odd number is decided contact 12 and even numbers and is decided contact 13 and be contained in insulating arthropleura 23 bottoms, odd number bus 16 and even numbers bus 17 are contained on the insulating support 9, be contained in the odd number moving contact 14 selected above the actuating bar 6 and following even numbers moving contact 15 respectively bridge joints decide contact 12 and 16 of odd number buss and even numbers at odd number and decide 17 of contact 13 and even numbers buss, the two ends of selection actuating bar 6 are run through and are slidingly connected on the two horizontal side plates 24.The single, double number of selector switch is decided the number n of the afterbody contact Tn of contact 12,13 and is decided the number of taps of i.e. transformer pressure regulation winding 26 by the pressure regulation level is inferior.
Selection actuating bar 6 on three (phase) switch-boxes 4 and switch actuating bar 5 respectively with operating mechanism case 2 in selection operating mechanism 19 and fast operating mechanism 18 connect.
Operating process of the present utility model is as follows:
When controller sent the adjustment voltage instruction, actuating motor 3 drove selection operating mechanism 19 and quick switching mechanism 18 in the operating mechanism case 2 respectively after slowing down.
At first, selection mechanism 19 drives and selects actuating bar 6 motion to the left or to the right.So just make and selecting odd number moving contact 14 bridge joints on the actuating bar 6 to decide 16 of contact 12 and odd number buss at odd number, or make even numbers moving contact 15 bridge joints decide 17 of contact 13 and even numbers buss in even numbers, make the odd or even number of selector switch 21 moving, fixed contact connects, the selection of finishing switch is switched.After switching was selected to finish, operating mechanism 18 drove and switches actuating bars 5 and top curve ruler 7 high speeds motion to the left or to the right thereof fast.The pressure that lever 8 relies on the moving contact 11 inner elastomeric elements of vacuum contact 10 to produce, and be pressed against on the protruding or concave surface of curve ruler 7, the high-speed motion of curve ruler 7, make lever 8 heads become and be pressed against the groove from being pressed against boss, like this, just make the moving contact 11 that is connected on the lever 8 along with moving forward or backward, finish being switched on or switched off of vacuum contact 10.The vacuum contact of every phase diverter switch 20 is made up of odd number contact k1, transition contacts k2 and even numbers contact k3, and odd number contact k1 and even numbers contact k3 are can only one logical one disconnected.The motion of curve ruler 7 makes that original k1 or k3 are logical, k3 or k1 are disconnected is converted to k3 or k1 is logical, k1 or k3 are disconnected.Vacuum contact 10 is decided contact 12,13 by single, double several buss 16,17 with single, double number and is connected.
Said process has been finished once by list or even numbers contact to two or odd number contact convert task, and just the utility model has been finished the process of once adjusting voltage automatically.
Be not difficult to find out that from above-mentioned compared with the prior art the utility model has the following advantages:
1, owing to the utility model only places same phase change-over switch and selector switch together In the switch-box, so improved the respectively dielectric strength between the phase, make the volume of product Dwindle, cost, the while has been improved again the reliability of product;
2, again since same phase selector switch and change-over switch be arranged in the switch-box, Selector switch movable contact on line adopts bus (16, the 17) structure of stripe shape, this Sample is decided contact (12,13) when the moving contact (14,15) of selecting switch is overlapped on And in the time of between the bus (16,17), just can by bus with moving contact with draw outward Line connects, and the single, double several contact k1 of change-over switch, k3 can distinguish independent lead-out wire, Therefore, the utility model can be connected into various connection sets, satisfies various voltage regulating mode transformations The needs of device;
3, the utility model with the operating mechanism case with each mutually switch-box arrange and not only to be convenient to the mounting, commissioning and maintenance on the transformer in line, and the overall volume of dwindling transformer that can be bigger.
Claims (3)
1. vacuum on-load operation switch, be applicable to on-load tap-changing transformer, comprise operating mechanism case, selector switch and diverter switch, it is characterized in that: same phase selector switch and diverter switch place in the switch-box, and are provided with the selection actuating bar that can move along a straight line and switch the actuating bar;
2. a kind of vacuum on-load operation switch according to claim 1 is characterized in that: the operating mechanism case with each mutually switch-box be that a straight line is arranged, and link to each other with selecting actuating bar and switching actuating bar respectively with quick mechanism by transmission mechanism;
3. a kind of vacuum on-load operation switch according to claim 2 is characterized in that: the moving contact on line of selector switch can adopt the bus of strip structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96225839 CN2253042Y (en) | 1996-04-09 | 1996-04-09 | Vacuum loaded shunting switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96225839 CN2253042Y (en) | 1996-04-09 | 1996-04-09 | Vacuum loaded shunting switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2253042Y true CN2253042Y (en) | 1997-04-23 |
Family
ID=33904402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96225839 Expired - Fee Related CN2253042Y (en) | 1996-04-09 | 1996-04-09 | Vacuum loaded shunting switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2253042Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008031302A1 (en) * | 2006-09-12 | 2008-03-20 | Wuhan Taipu Transformer Changer Co., Ltd. | Non-excited tap-changer with shielding device |
| CN103000443A (en) * | 2011-09-08 | 2013-03-27 | 北京博瑞莱智能科技有限公司 | Single-stage direct actuating low-voltage permanent magnet vacuum load switch |
| CN105448548A (en) * | 2015-12-21 | 2016-03-30 | 浙江宝威电气有限公司 | Transformer on-load tap changer |
| CN106783377A (en) * | 2016-12-30 | 2017-05-31 | 宁波安德奥电力设备有限公司 | Many gear vacuum on-load operation switch |
| CN106876206A (en) * | 2017-03-31 | 2017-06-20 | 宁波安德奥电力设备有限公司 | Dual output straight line is from slide switch |
| CN107039195A (en) * | 2017-03-31 | 2017-08-11 | 宁波安德奥电力设备有限公司 | Linear permanent magnet vacuum load ratio bridging switch |
| CN107293423A (en) * | 2017-03-31 | 2017-10-24 | 宁波安德奥电力设备有限公司 | Linear vacuum has the double gear switch switches of load |
| CN106409549B (en) * | 2016-12-14 | 2018-09-14 | 浙江腾龙电器有限公司 | A kind of horizontal bar shaped composite vacuum load ratio bridging switch |
-
1996
- 1996-04-09 CN CN 96225839 patent/CN2253042Y/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE112007001415B4 (en) * | 2006-09-12 | 2017-04-06 | Wuhan Taipu Transformer Changer Co., Ltd. | Voltage-free tap changer for a cage-type transformer |
| WO2008031302A1 (en) * | 2006-09-12 | 2008-03-20 | Wuhan Taipu Transformer Changer Co., Ltd. | Non-excited tap-changer with shielding device |
| CN103000443A (en) * | 2011-09-08 | 2013-03-27 | 北京博瑞莱智能科技有限公司 | Single-stage direct actuating low-voltage permanent magnet vacuum load switch |
| CN103000443B (en) * | 2011-09-08 | 2015-06-17 | 北京博瑞莱智能科技集团有限公司 | Single-stage direct actuating low-voltage permanent magnet vacuum load switch |
| CN105448548B (en) * | 2015-12-21 | 2018-01-09 | 浙江宝威电气有限公司 | On-load tap-changer of transformer |
| CN105448548A (en) * | 2015-12-21 | 2016-03-30 | 浙江宝威电气有限公司 | Transformer on-load tap changer |
| CN106409549B (en) * | 2016-12-14 | 2018-09-14 | 浙江腾龙电器有限公司 | A kind of horizontal bar shaped composite vacuum load ratio bridging switch |
| CN106783377A (en) * | 2016-12-30 | 2017-05-31 | 宁波安德奥电力设备有限公司 | Many gear vacuum on-load operation switch |
| CN106876206A (en) * | 2017-03-31 | 2017-06-20 | 宁波安德奥电力设备有限公司 | Dual output straight line is from slide switch |
| CN107039195A (en) * | 2017-03-31 | 2017-08-11 | 宁波安德奥电力设备有限公司 | Linear permanent magnet vacuum load ratio bridging switch |
| CN107293423A (en) * | 2017-03-31 | 2017-10-24 | 宁波安德奥电力设备有限公司 | Linear vacuum has the double gear switch switches of load |
| CN107039195B (en) * | 2017-03-31 | 2020-04-21 | 宁波安德奥电力设备有限公司 | Linear permanent magnet vacuum on-load tap-changer |
| CN107293423B (en) * | 2017-03-31 | 2020-07-24 | 宁波安德奥电力设备有限公司 | Linear vacuum on-load double-gear change-over switch |
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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 |