CN105448548A - Transformer on-load tap changer - Google Patents
Transformer on-load tap changer Download PDFInfo
- Publication number
- CN105448548A CN105448548A CN201510974624.8A CN201510974624A CN105448548A CN 105448548 A CN105448548 A CN 105448548A CN 201510974624 A CN201510974624 A CN 201510974624A CN 105448548 A CN105448548 A CN 105448548A
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- CN
- China
- Prior art keywords
- branch road
- vacuum interrupter
- permanent magnet
- specified
- magnet mechanism
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Classifications
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- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F29/00—Variable transformers or inductances not covered by group H01F21/00
- H01F29/02—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings
- H01F29/04—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings having provision for tap-changing without interrupting the load current
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention discloses a transformer on-load tap changer. Each phase of the transformer on-load tap changer comprises a rated branch, a boosting branch, a step-down branch and a transition branch, wherein the rated branch, the boosting branch, the step-down branch and the transition branch are respectively provided with a vacuum arc-extinguishing chamber; the transition branch is connected with the rated branch in parallel; and the transition branch comprises a transition vacuum arc-extinguishing chamber which is connected with a resistor in series, a boosting permanent magnet mechanism which is used for driving the vacuum arc-extinguishing chamber in the three-phase boosting branch to open or close, a step-down permanent magnet mechanism which is used for driving the vacuum arc-extinguishing chamber in the three-phase step-down branch to open or close, and a rated permanent magnet mechanism which is used for driving the vacuum arc-extinguishing chambers in the three-phase rated branch and the transition branch to open or close.
Description
Technical field
The invention belongs to power industry technical field of transformer equipment, particularly relate to a kind of on-load voltage regulating switch on transformer.
Background technology
In " distribution network construction transformation action plan (2015 ~ 2020) " that National Energy Board issues, saving energy and reduce the cost of power distribution station, power supply quality, intelligent, reliabilities etc. all require to have greatly improved, and it is also day by day urgent that distribution transformer has on-load voltage regulation function.
At present, existing distribution transformer is commonplace uses compound on-load voltage regulating switch, there is following shortcoming in this switch: in the process of switching branch joint, contact easily forms electric arc, this causes contact impaired, makes oil very easily deterioration occur, and needs regularly to have a power failure maintenance of changing oil, transfer the files continuously and oil temperature can be caused to raise, unsuitable frequent pressure regulation; Moreover it uses motor to rotate to spring energy agency energy storage, the mode that then dead point discharges suddenly excessively drives point contact head to carry out the switching of voltage gear.This driving mechanism structure is complicated, and part is many, and failure rate is high, and reliability is low, and shunting switch responsiveness is slow, and the response time is long.
Summary of the invention
For the problems referred to above, this patent provides that a kind of structure is simple, the life-span long, the three-phase three-gear position on-load voltage regulating switch of non-maintaining, applied range.
To achieve these goals, this patent is by the following technical solutions: a kind of on-load tap-changer of transformer, each comprises the specified branch road being respectively equipped with a vacuum interrupter mutually, boosting branch road, the transition branch road of step-down branch road and one and described specified branch circuit parallel connection, described transition branch road comprises the transition vacuum interrupter being serially connected with resistance, also comprise for driving the vacuum interrupter in three-phase voltage increasing branch road to disconnect or closed boosting permanent magnet mechanism, the step-down permanent magnet mechanism disconnected for driving the vacuum interrupter in three-phase step-down branch road or close and the specified permanent magnet mechanism for driving each vacuum interrupter in the specified branch road of three-phase and transition branch road to disconnect or close, often carry out a pressure regulation, each permanent magnet mechanism drives respective vacuum interrupter to carry out following action: first specified permanent magnet mechanism drives transition vacuum interrupter to close, then the permanent magnet mechanism corresponding to existing gear drives its vacuum interrupter to disconnect, then the permanent magnet mechanism corresponding to be switched gear drives its vacuum interrupter to close, and last specified permanent magnet mechanism drives transition vacuum interrupter to disconnect.The present invention adopts permanent magnet mechanism as driving mechanism, and instead of the motor spring energy agency that prior art uses, operational reliability significantly improves; And, the present invention is a set of permanent magnet mechanism of branch road, step-down branch road and each separate configurations of specified branch road that boosts, the vacuum interrupter often overlapping each branch road of permanent magnet mechanism drive carries out the action of closed and disconnected, every bar branch road independent operating, make overall structure simple, switching time significantly improves, generally within 10ms; Every bar branch road all adopts vacuum interrupter, efficiently solves arc extinguishing problem, achieves in the lifetime of transformer non-maintaining, applied widely, and dry type and oil-filled transformer all can be applied.
As preferably, described boosting permanent magnet mechanism drives the vacuum interrupter in described boosting branch road to carry out action by boosting transmission mechanism, once, described boosting transmission mechanism drives all vacuum interrupters in the boosting branch road of described three-phase to carry out action to the every action of boosting permanent magnet mechanism simultaneously; Step-down permanent magnet mechanism drives the vacuum interrupter in described step-down branch road to carry out action by step-down transmission mechanism, and once, step-down transmission mechanism drives all vacuum interrupters in the step-down branch road of described three-phase to carry out action to the every action of step-down permanent magnet mechanism simultaneously.Three-phase voltage increasing branch road, three-phase step-down branch road and the specified branch road of three-phase share a set of permanent magnet mechanism respectively, and more compact structure, synchronism is better.
Further, described specified permanent magnet mechanism drives the vacuum interrupter in the specified branch road of described three-phase and three-phase transition branch road to carry out action by specified transmission mechanism, the every action of specified permanent magnet mechanism once, transition vacuum interrupter in specified transmission mechanism drive three-phase transition branch road switches to closure state by original off-state and switches back off-state again, drives the vacuum interrupter in the specified branch road of three-phase switch to off-state by original closure state or switch to closure state by original off-state simultaneously; A set of specified permanent magnet mechanism meets the work requirements of the vacuum interrupter in three-phase transition branch road and the specified branch road of three-phase simultaneously.
As preferably, described specified transmission mechanism comprises three vacuum interrupters respectively in branch road specified with three-phase and to match the first connector, three the second connectors matched with the vacuum interrupter in three-phase transition branch road respectively and the actuator that matches with described first connector, the second connector.Specified branch road and transition branch road share a permanent magnet mechanism, and connect respectively by different connectors, permanent magnet mechanism action once, can realize two branch roads vacuum interrupter separately and carry out different actions.
Further, described second connector comprises the sliding part be slidably matched with actuator and the curved portions coordinated with vacuum interrupter activity.The setting of curved portions, achieves the every action of permanent magnet mechanism once, and its corresponding vacuum interrupter can be closed again to off-state from being disconnected to.
Or further, described second connector comprises the connecting portion be connected with actuator and the curved portions coordinated with vacuum interrupter activity; Also can be that one end of actuator and the second connector is connected, move left and right by it knee-action driving vacuum interrupter moving contact.
Further again, described second connector comprises the connecting portion coordinated with vacuum interrupter and the curved portions coordinated with actuator activity.Also curved portions and actuator can being carried out activity to coordinate, driving vacuum interrupter to realize from being disconnected to by the left and right action of actuator closed again to the state disconnected.
Described first connector and the second connector are matched with corresponding vacuum interrupter by an insulator respectively; By the electrical isolation effect of insulator, the first connector and the second connector is made to adopt metal structure.
Three pressure regulation branch roads of the present invention and a transition branch road constitute gear switch system, and three pressure regulation branch roads comprise: specified branch road, boosting branch road and step-down branch road, transition branch road and specified branch circuit parallel connection; Article three, pressure regulation branch road respectively comprises a vacuum interrupter, and transition branch road comprises the transition resistance of a transition vacuum interrupter and series connection with it;
Three vacuum interrupters in three vacuum interrupters in the transition branch road of three-phase and the specified branch road of three-phase share a sets of transmission mechanism, and share a permanent magnet mechanism; The every action of permanent magnet mechanism once, drives its transmission mechanism to make these vacuum interrupters carry out the action of separating brake or combined floodgate by the sequential designed.
Three vacuum interrupters in the boosting branch road of three-phase share a sets of transmission mechanism, share a permanent magnet mechanism, composition booster system; The every action of permanent magnet mechanism once, drives its transmission mechanism to make these vacuum interrupters carry out the action of separating brake or combined floodgate by the sequential designed.
Three vacuum interrupters in the step-down branch road of three-phase share a sets of transmission mechanism, share a permanent magnet mechanism, composition depressurizing system; The every action of permanent magnet mechanism once, drives its transmission mechanism to make these vacuum interrupters carry out the action of separating brake or combined floodgate by the sequential designed.
Transformer initial condition is in specified shelves, and namely the vacuum interrupter of specified branch road closes a floodgate, and all vacuum interrupters of other branch roads are all in gate-dividing state.The pressure regulation process of being boosted by initial condition is as follows: when low-pressure side output voltage is lower than setting, controller sends instruction and is energized to rating system and booster system simultaneously, the permanent magnet mechanism of two cover systems drives respective vacuum interrupter by following sequential action simultaneously: specified permanent magnet mechanism passes through one-off, the transition vacuum interrupter of transition branch road is first driven to close, then vacuum interrupter corresponding in specified branch road is driven to disconnect, then the permanent magnet mechanism that boosts drives the vacuum interrupter in boosting branch road to close, last specified permanent magnet mechanism drives the transition vacuum interrupter in transition branch road to disconnect, namely the conversion of present gear to be switched gear is completed, otherwise then step is contrary.In whole handoff procedure, the action of specified permanent magnet mechanism once, can complete drive transition vacuum interrupter by off-state to closure state again to a process of off-state, complete the specified vacuum interrupter of driving by the process of closure state to off-state simultaneously; And specified permanent magnet mechanism and boosting permanent magnet mechanism link between two, namely both need the beginning action that is simultaneously energized, and just in respective action process once, the action sequence of the vacuum interrupter driven has successively.
In handoff procedure, first connect transition branch road and ensure that not power-off in gear transfer process, the transition resistance restriction load current of transition branch road series connection does not allow it have large change, also plays the effect (having coil loop to miscarry when transition branch road and to be switched gear are connected simultaneously raw) of limiting coil circulation.
Step-down shelves are switched to by specified shelves, its step-down pressure regulation process is as follows: when low-pressure side output voltage is lower than setting, controller sends instruction and is energized to rating system and depressurizing system simultaneously, the permanent magnet mechanism of Liang Tao mechanism drives described vacuum interrupter by following sequential action simultaneously: specified permanent magnet mechanism passes through one-off, the transition vacuum interrupter in transition branch road is first driven to close, then vacuum interrupter corresponding in specified branch road is driven to disconnect, then step-down permanent magnet mechanism drives the vacuum interrupter in step-down branch road to connect, last specified permanent magnet mechanism disconnects the transition vacuum interrupter in transition branch road, complete the conversion of specified gear to step-down gear, otherwise then step is contrary.In whole handoff procedure, the action of specified permanent magnet mechanism once, can complete drive transition vacuum interrupter by off-state to closure state again to a process of off-state, complete the specified vacuum interrupter of driving by the process of closure state to off-state simultaneously; And specified permanent magnet mechanism and step-down permanent magnet mechanism link between two, namely both need the beginning action that is simultaneously energized, and just in respective action process once, the action sequence of the vacuum interrupter driven has successively.
In sum, the invention has the beneficial effects as follows: with multiple permanent magnet mechanism as driving mechanism, replace the motor spring energy agency that prior art uses, structure is simple, and reliability is high, switches rapidly (within 10ms); Gear switch system vacuum interrupter forms, and efficiently solves arc extinguishing problem, achieves in the lifetime of transformer non-maintaining, applied widely, and dry type and oil-filled transformer all can be applied, and entirety is more safe and reliable.
Accompanying drawing explanation
Fig. 1 is the basic circuit schematic diagram of this patent.
Fig. 2 is the structural representation of rating system of the present invention.
Fig. 3 is the structural representation of boosting of the present invention and depressurizing system.
Fig. 4 is the partial structurtes schematic diagram of Fig. 2.
Fig. 5 is the action timing diagram of each vacuum interrupter under specified permanent magnet mechanism of the present invention drives.
Fig. 6 is the action timing diagram of each vacuum interrupter under boosting permanent magnet mechanism of the present invention drives.
Fig. 7 be step-down permanent magnet mechanism of the present invention drive under each vacuum interrupter action timing diagram.
Wherein, K1 represents the vacuum interrupter in boosting branch road; K2 represents the vacuum interrupter in step-down branch road; Kg represents the vacuum interrupter in transition branch road; Kn represents the vacuum interrupter in specified branch road; Symbol "
day" represent that vacuum interrupter is in "on" position, symbol "
order" represent that vacuum interrupter is in gate-dividing state; R represents transition resistance; T represents the time; Un represents rated voltage.
Embodiment
In order to make those skilled in the art person better understand the present invention program, below in conjunction with the accompanying drawing in the embodiment of the present invention, clear, complete description is carried out to the technical scheme in the embodiment of the present invention.
As shown in figs. 1-7, a kind of on-load tap-changer of transformer, often comprise a specified branch road, a boosting branch road, a step-down branch road and one and the transition branch road of described specified branch circuit parallel connection in A, B, C three-phase mutually respectively, specified branch road, boost branch road, step-down branch road are provided with a vacuum interrupter respectively; Described transition branch road comprises the resistance and transition vacuum interrupter that are mutually connected in series;
The present invention also comprises and also comprises a set of boosting permanent magnet mechanism 1, a set of step-down permanent magnet mechanism 2 and a set of specified permanent magnet mechanism 3; Boosting permanent magnet mechanism 1 is for driving the vacuum interrupter 11 in three-phase voltage increasing branch road to disconnect or close simultaneously, step-down permanent magnet mechanism 2 is for driving the vacuum interrupter 21 in three-phase step-down branch road to disconnect or close simultaneously, specified permanent magnet mechanism 3 is not only for driving the disconnection of each vacuum interrupter 33 of the specified branch road of three-phase or closed simultaneously, and each vacuum interrupter 32 simultaneously driven in three-phase transition branch road is closed again to the action disconnected by being disconnected to.
Often carry out a pressure regulation, each permanent magnet mechanism drives respective vacuum interrupter to carry out following action: first specified permanent magnet mechanism drives transition vacuum interrupter closed by being disconnected to, then the permanent magnet mechanism corresponding to existing gear drives its vacuum interrupter to disconnect, then the permanent magnet mechanism corresponding to be switched gear drives its vacuum interrupter to close, and last specified permanent magnet mechanism drives transition vacuum interrupter to disconnect.It should be explained that, each pressure regulation, the action of each rating agencies once, specified permanent magnet mechanism need when action once meet two cover vacuum interrupters and carry out different course of action, concrete sequential is as schemed as illustrated in figs. 5-7, wherein Fig. 6 is the sequential chart of boosting branch road, Fig. 7 is the sequential chart of step-down branch road, during each pressure regulation, that Fig. 5 and Fig. 6 coordinates or Fig. 5 and Fig. 7 coordinates appearance, two rating agencies are energized simultaneously, link between two, permanent magnet mechanism action time decomposition is once become T1, T2, T3, tetra-little stages of T4, each stage, the action situation of each arc control device will be carried out according to the requirement on sequential chart, the present invention adopts permanent magnet mechanism as power source, and be provided with three cover power sources, the i.e. a set of permanent magnet mechanism of each self-configuring of every bar branch road, during each pressure regulation, only needs specified permanent magnet mechanism and other a set of permanent magnet mechanism to link between two to realize switching, the traditional linked manner of respective configuration driven mechanism simplifying, discard tradition completely rotate mode, drive adopt be up and down or left and right orthoscopic drive, structure is ingenious, non-maintaining, belong to a great change in tap changer field.
Concrete, described boosting permanent magnet mechanism drives the vacuum interrupter in described boosting branch road to carry out action by boosting transmission mechanism, the every action of boosting permanent magnet mechanism once, drives described boosting transmission mechanism to drive all vacuum interrupters in the boosting branch road of described three-phase to carry out action simultaneously; Step-down permanent magnet mechanism drives the vacuum interrupter in described step-down branch road to carry out action by step-down transmission mechanism, the every action of step-down permanent magnet mechanism once, drives step-down transmission mechanism to drive all vacuum interrupters in the step-down branch road of described three-phase to carry out action simultaneously.
Described specified permanent magnet mechanism drives the vacuum interrupter in the specified branch road of described three-phase and three-phase transition branch road to carry out action by specified transmission mechanism, the every action of specified permanent magnet mechanism once, transition vacuum interrupter in specified transmission mechanism drive three-phase transition branch road switches to closure state by original off-state and switches back off-state again, drive the vacuum interrupter in the specified branch road of three-phase switch to off-state by original closure state or switch to closure state by original off-state simultaneously, namely the vacuum interrupter in specified branch road completes by being closed into off-state or by being disconnected to closure state during this period of time, transition vacuum interrupter in transition branch road then completes and switches to by original off-state the process that closure state switches back off-state again.The assurance of this time, mainly the special construction of specified transmission mechanism brings, and specified transmission mechanism will realize this effect, there is multiple implementation, in the present embodiment, the following structure of main employing: concrete, described specified transmission mechanism comprises three the first connectors 41, three the second connectors 42, an actuator 31 and support 48, actuator is can be the Metallic rod of rod-like structure, concrete, three vacuum interrupters in the specified branch road of three-phase coordinate the first connector 41 described in respectively separately, this first connector can be a metal arm, and the moving contact lower end of vacuum interrupter is fixedly connected with an insulator 38, insulator plays electrical isolation effect, and the lower end of insulator connects the first described connector 41 rotationally, and the other end of the first connector 41 and actuator are rotatably connected, when actuator 31 swings under the driving of specified permanent magnet mechanism, first connector drives the moving contact of vacuum interrupter to move up or down, and then realizes the closed and disconnected of vacuum interrupter,
Three transition vacuum interrupters in three-phase transition branch road coordinate the second connector 42 described in respectively separately, in like manner, in order to carry out electrical equipment isolation processing, an insulator is all connected below the moving contact of three transition vacuum interrupters, the lower end of insulator is rotatably connected the second described connector, and described second connector 42 comprises the sliding part 421 be slidably matched with actuator 31 and the curved portions 422 coordinated with the activity of transition vacuum interrupter, concrete, sliding part 421 is a chute or protuberance, because the lower end of connector rotatably coordinates with support 48, and actuator drives the second connector to swing by this chute or protuberance, so the moving contact of vacuum interrupter is then drive by curved portions 422 and moves up and down,
The place sidewall of support 48 corresponding to the first connector and the second connector is equipped with groove 481, and this groove 481 plays a spacing effect, defines the position range that actuator moves left and right;
If specified permanent magnet mechanism is horizontally disposed with, then directly can be connected with actuator, and when specified permanent magnet mechanism is vertically placed, needs to connect actuator by arranging a set of swing arm 33, thus the knee-action of permanent magnet mechanism be converted to swinging of actuator;
Obviously, the structure of described second connector can be various, only need realize the every action of specified permanent magnet mechanism once, first connector, second connector drives respective vacuum interrupter to carry out action according to the sequential chart of Fig. 5, two kinds of implementations are enumerated again in addition in the present embodiment, the first: described second connector 42 can be connected with actuator integrative-structure or actuator 31, it comprises connecting portion and curved portions 422, curved portions is identical with the structure of foregoing description, also be deep-slotted chip breaker, this mode needs to arrange a pulley at insulator end and reduces the friction with curved portions, actuator directly drives the second connector to swing, in swing process, drive insulator knee-action,
Second connector 42 of another kind of structure comprises the connecting portion coordinated with vacuum interrupter and the curved portions 422 coordinated with actuator 31 activity, namely, turn the second connector around setting, curved portions coordinates with actuator, connecting portion and insulator are connected, and can realize actuator equally in the process of swinging, drive insulator to move up and down.
In the present embodiment, shown step-down transmission mechanism is identical with the structure of boosting transmission mechanism, be provided with as the actuator in nominal drive mechanism and the first connector, actuator and the first connector rotatably coordinate, the other end of the first connector rotatably coordinates with vacuum interrupter, the swinging of actuator drives moving up and down of the moving contact of vacuum interrupter, as Fig. 3, shown in 4, its structure is relatively simple, because step-down permanent magnet mechanism and the every action of boosting permanent magnet mechanism are once, its each self-driven all vacuum interrupters are all synchronization actions, or close simultaneously, or disconnect simultaneously.
Obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, should belong to the scope of protection of the invention.
Claims (8)
1. an on-load tap-changer of transformer, each comprises the specified branch road being respectively equipped with a vacuum interrupter mutually, boosting branch road, the transition branch road of step-down branch road and one and described specified branch circuit parallel connection, described transition branch road comprises the transition vacuum interrupter being serially connected with resistance, it is characterized in that: also comprise for driving the vacuum interrupter in three-phase voltage increasing branch road to disconnect or closed boosting permanent magnet mechanism (1), the step-down permanent magnet mechanism (2) disconnected for driving the vacuum interrupter in three-phase step-down branch road or close and the specified permanent magnet mechanism (3) for driving each vacuum interrupter in the specified branch road of three-phase and transition branch road to disconnect or close, often carry out a pressure regulation, each permanent magnet mechanism drives respective vacuum interrupter to carry out following action: first specified permanent magnet mechanism drives transition vacuum interrupter to close, then the permanent magnet mechanism corresponding to existing gear drives its vacuum interrupter to disconnect, then the permanent magnet mechanism corresponding to be switched gear drives its vacuum interrupter to close, and last specified permanent magnet mechanism drives transition vacuum interrupter to disconnect.
2. on-load tap-changer of transformer according to claim 1, it is characterized in that: described boosting permanent magnet mechanism drives the vacuum interrupter in described boosting branch road to carry out action by boosting transmission mechanism, once, described boosting transmission mechanism drives all vacuum interrupters in the boosting branch road of described three-phase to carry out action to the every action of boosting permanent magnet mechanism simultaneously; Step-down permanent magnet mechanism drives the vacuum interrupter in described step-down branch road to carry out action by step-down transmission mechanism, and once, step-down transmission mechanism drives all vacuum interrupters in the step-down branch road of described three-phase to carry out action to the every action of step-down permanent magnet mechanism simultaneously.
3. on-load tap-changer of transformer according to claim 1 and 2, it is characterized in that: described specified permanent magnet mechanism drives the vacuum interrupter in the specified branch road of described three-phase and three-phase transition branch road to carry out action by specified transmission mechanism, the every action of specified permanent magnet mechanism once, transition vacuum interrupter in specified transmission mechanism drive three-phase transition branch road switches to closure state by original off-state and switches back off-state again, drive the vacuum interrupter in the specified branch road of three-phase switch to off-state by original closure state or switch to closure state by original off-state simultaneously.
4. on-load tap-changer of transformer according to claim 3, is characterized in that: described specified transmission mechanism comprises three vacuum interrupters respectively in branch road specified with three-phase and to match the first connector (41), three the second connectors (42) matched with the vacuum interrupter in three-phase transition branch road respectively and the actuator (31) that matches with described first connector, the second connector.
5. on-load tap-changer of transformer according to claim 4, is characterized in that: described second connector (42) comprises the sliding part (421) be slidably matched with actuator (31) and the curved portions (422) coordinated with vacuum interrupter activity.
6. on-load tap-changer of transformer according to claim 4, is characterized in that: described second connector (42) comprises the connecting portion be connected with actuator (31) and the curved portions (422) coordinated with vacuum interrupter activity.
7. on-load tap-changer of transformer according to claim 4, is characterized in that: described second connector (42) comprises the connecting portion coordinated with vacuum interrupter and the curved portions (422) coordinated with actuator (31) activity.
8. the on-load tap-changer of transformer according to any one of claim 3-5, is characterized in that: described first connector and the second connector are matched with corresponding vacuum interrupter by an insulator (38) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510974624.8A CN105448548B (en) | 2015-12-21 | 2015-12-21 | On-load tap-changer of transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510974624.8A CN105448548B (en) | 2015-12-21 | 2015-12-21 | On-load tap-changer of transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105448548A true CN105448548A (en) | 2016-03-30 |
| CN105448548B CN105448548B (en) | 2018-01-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510974624.8A Active CN105448548B (en) | 2015-12-21 | 2015-12-21 | On-load tap-changer of transformer |
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| CN (1) | CN105448548B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112201496A (en) * | 2020-11-16 | 2021-01-08 | 浙江宝威电气有限公司 | Driving device for transformer voltage regulating switch operating mechanism |
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| CN2253042Y (en) * | 1996-04-09 | 1997-04-23 | 沈阳变压器组件开发中心 | Vacuum loaded shunting switch |
| CN2268299Y (en) * | 1997-05-06 | 1997-11-19 | 哈尔滨腾远有载分接开关厂 | Dry box-shape vacuum loaded tap-off switching device |
| CN2278288Y (en) * | 1996-06-26 | 1998-04-08 | 国营双城有载分接开关厂 | Dry type vacuum load dividing intermediate voltage-regulating switch |
| DE19847745C1 (en) * | 1998-10-16 | 2000-01-05 | Reinhausen Maschf Scheubeck | Tapping switch for interruption-free switchover between different winding tappings of a tapped transformer |
| CN2446643Y (en) * | 2000-09-15 | 2001-09-05 | 张庆祥 | Single coherence type vacuum loaded tap changer |
| DE102004046926B3 (en) * | 2004-09-28 | 2006-01-19 | Maschinenfabrik Reinhausen Gmbh | Device for regulating the electrical voltage |
| CN201181639Y (en) * | 2008-04-28 | 2009-01-14 | 上海华明电力设备制造有限公司 | Direct action type switch |
| CN205428722U (en) * | 2015-12-21 | 2016-08-03 | 浙江宝威电气有限公司 | Transformer on -load voltage regulating switch |
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2015
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2253042Y (en) * | 1996-04-09 | 1997-04-23 | 沈阳变压器组件开发中心 | Vacuum loaded shunting switch |
| CN2278288Y (en) * | 1996-06-26 | 1998-04-08 | 国营双城有载分接开关厂 | Dry type vacuum load dividing intermediate voltage-regulating switch |
| CN2268299Y (en) * | 1997-05-06 | 1997-11-19 | 哈尔滨腾远有载分接开关厂 | Dry box-shape vacuum loaded tap-off switching device |
| DE19847745C1 (en) * | 1998-10-16 | 2000-01-05 | Reinhausen Maschf Scheubeck | Tapping switch for interruption-free switchover between different winding tappings of a tapped transformer |
| CN2446643Y (en) * | 2000-09-15 | 2001-09-05 | 张庆祥 | Single coherence type vacuum loaded tap changer |
| DE102004046926B3 (en) * | 2004-09-28 | 2006-01-19 | Maschinenfabrik Reinhausen Gmbh | Device for regulating the electrical voltage |
| CN201181639Y (en) * | 2008-04-28 | 2009-01-14 | 上海华明电力设备制造有限公司 | Direct action type switch |
| CN205428722U (en) * | 2015-12-21 | 2016-08-03 | 浙江宝威电气有限公司 | Transformer on -load voltage regulating switch |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112201496A (en) * | 2020-11-16 | 2021-01-08 | 浙江宝威电气有限公司 | Driving device for transformer voltage regulating switch operating mechanism |
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| Publication number | Publication date |
|---|---|
| CN105448548B (en) | 2018-01-09 |
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