CN205609368U - Novel on -load voltage regulating switch - Google Patents
Novel on -load voltage regulating switch Download PDFInfo
- Publication number
- CN205609368U CN205609368U CN201620051428.3U CN201620051428U CN205609368U CN 205609368 U CN205609368 U CN 205609368U CN 201620051428 U CN201620051428 U CN 201620051428U CN 205609368 U CN205609368 U CN 205609368U
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- vacuum interrupter
- pressure regulation
- gear
- drive mechanism
- branch road
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- 230000001105 regulatory effect Effects 0.000 title claims abstract description 21
- 230000007246 mechanism Effects 0.000 claims abstract description 59
- 230000007704 transition Effects 0.000 claims abstract description 35
- 230000033001 locomotion Effects 0.000 claims abstract description 8
- 230000009471 action Effects 0.000 claims description 27
- 238000010586 diagram Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000002146 bilateral effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000036772 blood pressure Effects 0.000 description 2
- 230000002085 persistent effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The utility model discloses a novel on -load voltage regulating switch, each includes at least three pressure regulating unit mutually, each pressure regulating unit includes the main break -make branch road and the transition branch road parallelly connected with this main break -make branch road that are equipped with vacuum interrupter, and the branch road that should pass through is including the transition vacuum interrupter who concatenates resistance, each pressure regulating unit still include one set of reciprocating motion with drive main break -make branch road and transition in the branch road vacuum interrupter disconnection or closed actuating mechanism and with this actuating mechanism complex drive mechanism, whenever carry out a pressure regulating, the existing pressure regulating unit that keeps off the position with wait that the actuating mechanism who switches over in the pressure regulating unit that keeps off the position moves once respectively. The utility model discloses a non -maintaining in the life -cycle time of transformer, application scope is wide, and dry -type and oil -immersed transformer all can use, whole safe and reliable more.
Description
Technical field
This utility model belongs to power industry technical field of transformer equipment, particularly relates to a kind of on-load voltage regulating switch on transformator.
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. are desirable that and have greatly improved, and it is the most urgent that distribution transformer has on-load voltage regulation function.
At present, existing distribution transformer is commonplace uses compound on-load voltage regulating switch, this switch has the disadvantage in that during switching branch joint, contact easily forms electric arc, this causes contact impaired, makes oil easily deteriorate, and need periodically to have a power failure maintenance of changing oil, gear shift can cause oil temperature to raise continuously, unsuitable frequently pressure regulation；Furthermore it uses motor rotation to drive tap contact to carry out the switching of voltage gear to spring energy agency energy storage, the mode that then dead point discharges suddenly excessively.This driving mechanism structure is complicated, and part is many, and fault rate is high, and reliability is low, and shunting switch speed of action is slow, and response time is long.
Utility model content
For the problems referred to above, this patent provides a kind of simple in construction, life-span length, non-maintaining, the novel on-load voltage regulating switch of applied range.
To achieve these goals, this patent is by the following technical solutions: a kind of novel on-load voltage regulating switch, each phase includes at least three pressure regulation unit, described each pressure regulation unit includes the transition branch road of a main break-make branch road being provided with vacuum interrupter and and this main break-make branch circuit parallel connection, and this transition branch road includes the transition vacuum interrupter being serially connected with resistance；It is characterized in that: described each pressure regulation unit also includes that a set of reciprocating motion is to drive the drive mechanism that the vacuum interrupter in main break-make branch road and transition branch road is opened or closed and the drive mechanism coordinated with this drive mechanism, often carry out a pressure regulation, show the action respectively of the drive mechanism in the pressure regulation unit of gear and the pressure regulation unit of to be switched gear once:
First the transition vacuum interrupter showing gear first closes a floodgate；
Then the main break-make vacuum interrupter separating brake of gear is showed；
The transition vacuum interrupter of the most to be switched gear closes a floodgate；
Main break-make vacuum interrupter followed by be switched gear closes a floodgate；
The transition vacuum interrupter separating brake of last to be switched gear, i.e. completes one-level pressure regulation.This utility model uses the reciprocating motion of drive mechanism to realize driving the break-make of vacuum interrupter, drive mechanism can be that to pump can also be bilateral reciprocation, in two set pressure regulation unit, the action respectively of respective drive mechanism once can complete a pressure regulation, instead of the motor spring energy agency that prior art uses, operational reliability significantly improves；And, the a set of drive mechanism of this utility model each pressure regulation unit separate configurations, vacuum interrupter in often set drive mechanism independently drives each pressure regulation unit carries out the action of closed and disconnected, each pressure regulation unit independent operating, make overall structure simple, switching time significantly improves, typically within 10ms；Pressure regulation every time, the drive mechanism of existing gear pressure regulation unit and the drive mechanism of to be switched gear pressure regulation unit have only to action respectively once, can realize pressure regulation；Using vacuum interrupter, efficiently solve arc extinguishing problem, it is achieved that non-maintaining in the lifetime of transformator, applied widely, dry type and oil-filled transformer all can be applied.
Further, described drive mechanism is permanent magnet mechanism or electromagnetic mechanism.
Further, electrically, each one end of pressure regulation elementary cell is connected respectively with the tap of voltage regulation coil, and the other end is connected in parallel.
Main break-make vacuum interrupter in each pressure regulation elementary cell and transition vacuum interrupter are under the drive mechanism effect by drive mechanism, and original state is: transition vacuum interrupter always separating brake, main break-make vacuum interrupter or combined floodgate, or separating brake；The every action of drive mechanism is once, the course of action of its two vacuum interrupters of driving is as follows: transition vacuum interrupter is first connected, the most main break-make vacuum interrupter is converted to separating brake (or combined floodgate), last transition vacuum interrupter separating brake by close a floodgate (or separating brake).
Further, after having on-load voltage regulating switch to access voltage regulation coil, original state is as follows: the main break-make vacuum interrupter of specified tap gear is to close a floodgate, the main break-make vacuum interrupter of remaining all tap gear is all separating brake, and on the vacuum interrupter on specified tap gear and other tap gear, the corresponding vacuum interrupter sequential when switching is symmetrical；Transformer, the main break-make vacuum interrupter of the existing gear residing for on-load voltage regulating switch is to close a floodgate, and the main break-make vacuum interrupter of remaining all tap gear is all separating brake.
When tap to be switched to be switched gear by existing gear, the pressure regulation elementary cell of the pressure regulation elementary cell and to be switched gear that only need to show gear distinguishes each action once；Two set drive mechanisms drive each vacuum interrupter by following sequential separating brake or combined floodgate by two sets of transmission mechanism respectively:
The transition vacuum interrupter of existing gear first closes a floodgate；
The main break-make vacuum interrupter separating brake of existing gear；
The transition vacuum interrupter of to be switched gear closes a floodgate；
The main break-make vacuum interrupter of to be switched gear closes a floodgate；
The transition vacuum interrupter separating brake of to be switched gear.Complete gear switching, i.e. complete one-level pressure regulation.
In sum, the beneficial effects of the utility model are: each pressure regulation unit is respectively provided with drive mechanism, and drive mechanism pass through be up and down or the reciprocating manner of left and right realizes driving, and often set permanent magnet mechanism has only to action once, pressure regulation can be realized, instead of the motor spring energy agency that prior art uses, simple in construction, reliability is high, rapidly (within 10ms), the persistent period of the switching overvoltage of generation and the persistent period of voltage waveform distortion are the shortest in switching；Gear switched system vacuum interrupter forms, and efficiently solves arc extinguishing problem, it is achieved that non-maintaining in the lifetime of transformator, and applied widely, 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 of the present utility model by the action timing diagram of each vacuum interrupter during specified gear to boosting gear switching.
Fig. 3 is the action timing diagram of each vacuum interrupter when being switched by specified gear to blood pressure lowering gear of the present utility model.
Wherein, symbol " day " represents that vacuum interrupter is in "on" position, and symbol " mesh " represents that vacuum interrupter is in gate-dividing state；R represents transition resistance；T express time；Un represents rated voltage.
Detailed description of the invention
In order to make those skilled in the art be better understood from this utility model scheme, below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out clear, complete description.
A kind of novel on-load voltage regulating switch, A, B, C three-phase often includes at least three pressure regulation unit the most respectively, as shown in Figure 1, circuit diagram for one of which, in the present embodiment, often being respectively equipped with three pressure regulation unit mutually, described each pressure regulation unit includes the transition branch road 1 of a main break-make branch road 2 being provided with vacuum interrupter and and this main break-make branch circuit parallel connection, and this transition branch road includes the transition vacuum interrupter K being serially connected with resistance R；Electrically, each one end of pressure regulation elementary cell is connected respectively with the tap of voltage regulation coil, and the other end is connected in parallel.
Described each pressure regulation unit also includes a set of drive mechanism for driving the vacuum interrupter in main break-make branch road and transition branch road to be opened or closed and the drive mechanism coordinated with this drive mechanism, and drive mechanism is by up and down or the reciprocating motion of left and right drives the break-make of vacuum interrupter；Can select permanent magnet mechanism or electromagnetic mechanism as drive mechanism, the mechanism of any other bilateral reciprocation that can realize unloading goods；Often carrying out a pressure regulation, the drive mechanism in the existing pressure regulation unit of gear and the pressure regulation unit of to be switched gear need to realize action simultaneously；And two the set every action of drive mechanism once, respective drive mechanism needs to drive each vacuum interrupter to carry out action according to following sequential:
The transition vacuum interrupter of existing gear first closes a floodgate；
The main break-make vacuum interrupter separating brake of existing gear；
The transition vacuum interrupter of to be switched gear closes a floodgate；
The main break-make vacuum interrupter of to be switched gear closes a floodgate；
The transition vacuum interrupter separating brake of to be switched gear, i.e. completes one-level pressure regulation.
Concrete, as shown in Figure 2, action timing diagram for each vacuum interrupter in the present embodiment, when tap is switched to boost gear+2.5%Un by specified gear Un, needing the drive mechanism in the pressure regulation elementary cell of the pressure regulation elementary cell of specified gear and to be switched gear to link two-by-two, the drive mechanism in the most specified gear and boosting gear+2.5%Un need to be energized action simultaneously；It is broken down into six time periods of T1-T6 the movement time of each vacuum interrupter, i.e. once, drive mechanism needs the sequence of movement driving each vacuum interrupter to complete to be in two set drive mechanism simultaneously actions:
The transition vacuum interrupter Kgi first driving specified gear Un is first closed a floodgate by off-state；
The main break-make vacuum interrupter Ki separating brake of the most specified gear Un；
Then boost gear+2.5%Un transition vacuum interrupter Kgi+ close a floodgate；
Subsequently boost gear+2.5%Un main break-make vacuum interrupter Ki+ close a floodgate；
Finally boost the transition vacuum interrupter Kgi+ separating brake of gear+2.5%Un, completes, by the gear switching of specified gear Un to boosting gear+2.5%Un, i.e. to complete one-level pressure regulation.The handoff procedure switched between blood pressure lowering gear-2.5%Un gear by specified gear is similar, and its sequential chart, with reference to Fig. 3, is the same with Fig. 2；During pressure regulation, the course of action of each vacuum interrupter is the same with the sequential in Fig. 2, and here is omitted；
Carrying out pressure regulation, two set drive mechanisms need to start simultaneously at action, and drive mechanism transmits drive force to vacuum interrupter every time, and each vacuum interrupter carries out the time of action to be had successively, as long as it meets above-mentioned sequential (T1-T6)；And the assurance of this time, needing the drive mechanism of two set different structures, this mechanism can be connecting rod or cam structure, will realize this effect, has multiple implementation to use in prior art, and this is not emphasis of the present utility model, therefore repeats no more；
Obviously, two set drive mechanisms successively can also carry out action, and now, the structure of two sets of transmission mechanism can be identical, drive mechanism is existing carries out action only to need two to overlap, setting as movement time, it is referred to Fig. 2, sequential chart in 3, this effect will be realized, prior art has equally multiple implementation can use, this is not emphasis of the present utility model, therefore repeats no more；
Obviously, described embodiment is only a part of embodiment of the present utility model rather than whole embodiments.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, all should belong to the scope of this utility model protection.
Claims (5)
1. a novel on-load voltage regulating switch, each phase includes at least three pressure regulation unit, described each pressure regulation unit includes the transition branch road of a main break-make branch road being provided with vacuum interrupter and and this main break-make branch circuit parallel connection, and this transition branch road includes the transition vacuum interrupter being serially connected with resistance；It is characterized in that: described each pressure regulation unit also includes that a set of reciprocating motion is to drive the drive mechanism that the vacuum interrupter in main break-make branch road and transition branch road is opened or closed and the drive mechanism coordinated with this drive mechanism, often carry out a pressure regulation, once, and each vacuum interrupter carries out action according to following sequential to the action respectively of drive mechanism in the pressure regulation unit of existing gear and the pressure regulation unit of to be switched gear:
The transition vacuum interrupter of existing gear first closes a floodgate；
Then the main break-make vacuum interrupter separating brake of gear is showed；
The transition vacuum interrupter of the most to be switched gear closes a floodgate；
Main break-make vacuum interrupter followed by be switched gear closes a floodgate；
The transition vacuum interrupter separating brake of last to be switched gear, i.e. completes one-level pressure regulation.
The novel on-load voltage regulating switch of one the most according to claim 1, it is characterised in that: often carry out a pressure regulation, the drive mechanism action simultaneously in the described existing pressure regulation unit of gear and the pressure regulation unit of to be switched gear.
The novel on-load voltage regulating switch of one the most according to claim 1, it is characterised in that: often carrying out a pressure regulation, the drive mechanism in the pressure regulation unit of described existing gear is prior to the drive mechanism action in the pressure regulation unit of to be switched gear.
The novel on-load voltage regulating switch of one the most according to claim 1, it is characterised in that: described drive mechanism is permanent magnet mechanism or electromagnetic mechanism.
The novel on-load voltage regulating switch of one the most according to claim 1, it is characterised in that: electrically, each one end of pressure regulation elementary cell is connected respectively with the tap of voltage regulation coil, and the other end is connected in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620051428.3U CN205609368U (en) | 2016-01-19 | 2016-01-19 | Novel on -load voltage regulating switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620051428.3U CN205609368U (en) | 2016-01-19 | 2016-01-19 | Novel on -load voltage regulating switch |
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| Publication Number | Publication Date |
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| CN205609368U true CN205609368U (en) | 2016-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620051428.3U Expired - Fee Related CN205609368U (en) | 2016-01-19 | 2016-01-19 | Novel on -load voltage regulating switch |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105655159A (en) * | 2016-01-19 | 2016-06-08 | 浙江宝威电气有限公司 | Novel on-load tap voltage regulating switch |
| CN107068368A (en) * | 2017-05-11 | 2017-08-18 | 山东电工电气集团智能电气有限公司 | A kind of dry-type on-load tap changer circuit and its capacity transfer and pressure regulation method |
| CN108282121A (en) * | 2018-01-22 | 2018-07-13 | 国网北京市电力公司 | Switching method and switching circuit, the electrical equipment of switching circuit |
-
2016
- 2016-01-19 CN CN201620051428.3U patent/CN205609368U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105655159A (en) * | 2016-01-19 | 2016-06-08 | 浙江宝威电气有限公司 | Novel on-load tap voltage regulating switch |
| CN107068368A (en) * | 2017-05-11 | 2017-08-18 | 山东电工电气集团智能电气有限公司 | A kind of dry-type on-load tap changer circuit and its capacity transfer and pressure regulation method |
| CN107068368B (en) * | 2017-05-11 | 2019-01-29 | 山东电工电气集团智能电气有限公司 | A dry-type on-load tap-changer circuit and method for adjusting capacity and voltage |
| CN108282121A (en) * | 2018-01-22 | 2018-07-13 | 国网北京市电力公司 | Switching method and switching circuit, the electrical equipment of switching circuit |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160928 |