CN109411254B - Novel on-load voltage-regulating tapping switch - Google Patents
Novel on-load voltage-regulating tapping switch Download PDFInfo
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- CN109411254B CN109411254B CN201811518699.5A CN201811518699A CN109411254B CN 109411254 B CN109411254 B CN 109411254B CN 201811518699 A CN201811518699 A CN 201811518699A CN 109411254 B CN109411254 B CN 109411254B
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- 238000010079 rubber tapping Methods 0.000 title abstract description 20
- 230000007246 mechanism Effects 0.000 claims abstract description 89
- 230000001105 regulatory effect Effects 0.000 claims description 56
- 230000000712 assembly Effects 0.000 claims description 8
- 238000000429 assembly Methods 0.000 claims description 8
- 230000009471 action Effects 0.000 claims description 5
- 230000033001 locomotion Effects 0.000 claims description 5
- 230000007704 transition Effects 0.000 claims description 5
- 238000013461 design Methods 0.000 abstract description 9
- 238000010586 diagram Methods 0.000 description 7
- 238000009826 distribution Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- MYLBTCQBKAKUTJ-UHFFFAOYSA-N 7-methyl-6,8-bis(methylsulfanyl)pyrrolo[1,2-a]pyrazine Chemical compound C1=CN=CC2=C(SC)C(C)=C(SC)N21 MYLBTCQBKAKUTJ-UHFFFAOYSA-N 0.000 description 2
- 230000008033 biological extinction Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 241000283973 Oryctolagus cuniculus Species 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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
- 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
- H01H9/0011—Voltage selector switches
-
- 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
- H01H9/0016—Contact arrangements for tap changers
-
- 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
- H01H9/0027—Operating mechanisms
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention relates to a novel on-load voltage-regulating tapping switch, which comprises three voltage-regulating modules, a permanent magnet mechanism and a voltage-regulating rotating shaft, wherein each voltage-regulating module comprises a gear selection mechanism and a circuit switching mechanism, a plurality of selection fixed contacts and selection movable contacts matched with the selection fixed contacts are arranged on the gear selection mechanism, the voltage-regulating rotating shaft penetrates through the circuit switching mechanisms of the three voltage-regulating modules, the second permanent magnet mechanism drives the voltage-regulating rotating shaft to rotate, the circuit switching mechanism comprises a second main mounting plate, a second auxiliary mounting plate, a plurality of second switching contact mechanisms and a second vacuum tube, the second switching contact mechanisms are fixed on the second auxiliary mounting plate, the second vacuum tube is fixed on the second main mounting plate, the voltage-regulating rotating shaft drives the second vacuum tube to be closed or opened, and the voltage-regulating rotating shaft drives the second switching contact mechanisms to synchronously move. The novel on-load voltage-regulating tapping switch adopts a modularized design, and is convenient to assemble, stable in structure and low in cost.
Description
Technical Field
The invention relates to a tapping switch, in particular to a novel on-load voltage-regulating tapping switch.
Background
The vacuum arc extinction is reliable, the service life of the contact is long, and oil pollution and rabbit maintenance are avoided. At present, partial domestic manufacturers are exploring to adopt vacuum OLTC as voltage regulation in a small-capacity oil-immersed on-load voltage regulation distribution transformer. However, vacuum OLTC is still unsatisfactory in structural performance. The vacuum OLTC of the cylinder type mounting mode adopts a mechanical transmission mechanism for quickly releasing spring energy storage, the structure is a composite type selective switch structure, the voltage regulating range can meet the requirements of linear 9 tapping positions (+ -4 multiplied by 2.5%), but the vacuum OLTC has the defects of multiple use of one switch oil chamber, higher manufacturing cost, and larger occupation because the vacuum OLTC is vertically arranged on one side of a distribution transformer. The vacuum voltage-regulating OLTC of the horizontal installation mode has less occupation space in the distribution transformer, and can also adopt a permanent magnet mechanism for vacuum switching, but is limited by the fact that the permanent magnet mechanism can only operate reciprocally, the number of tapping positions of the voltage-regulating OLTC is too small, and the requirement of the voltage-regulating range of GB/T6451 standard cannot be met only at 3-5 tapping positions. The invention technology of the oil-immersed on-load voltage regulating tapping switch, which is developed by Zhejiang Tenglong electric appliance Co, in 2016, adopts a single-resistance single-vacuum switching circuit creatively, realizes 9 tapping positions (+ -4 multiplied by 2.5%), and better meets the intelligent development requirement of a distribution transformer.
However, the prior vacuum permanent magnet OLTC has the defects of large overall dimension of the switch due to complex circuit principle and switch structure, and still occupies large space inside the transformer, thereby influencing the design layout of the transformer and restricting the improvement of the economy of the on-load vacuum air-conditioning transformer.
Therefore, the vacuum permanent magnet needs to be redesigned, the volume of the switch is reduced, and particularly, the height of the switch is reduced, so that the height of a transformer oil tank is reduced, the manufacturing cost of the transformer can be effectively reduced, and the economical efficiency is improved.
In view of the above, zhejiang Tenglong electric appliance limited company develops a novel vacuum permanent magnet OLTC (oil immersed on-load tap changer invention technology: invention patent number 201611155045.1) with smaller volume and simpler installation based on the original vacuum permanent magnet OLTC, and is suitable for a 10kV small-capacity distribution transformer.
Disclosure of Invention
In order to solve the technical problems, the invention aims to provide a novel on-load voltage-regulating tap switch which is modularized, convenient to assemble and small in size.
In order to achieve the above object, the present invention adopts the following technical scheme:
The utility model provides a novel on-load voltage regulation tapping switch, includes three voltage regulation module, permanent magnetism mechanism and voltage regulation pivot, and every voltage regulation module includes gear selection mechanism and circuit switching mechanism, be provided with a plurality of selection fixed contacts and the selection movable contact piece of complex with it on the gear selection mechanism, the voltage regulation pivot runs through the circuit switching mechanism of three voltage regulation module of group, and second permanent magnetism mechanism drives the voltage regulation pivot and rotates, circuit switching mechanism includes second main mounting panel, the vice mounting panel of second, a plurality of second switching contact mechanism and a second vacuum tube, and second switching contact mechanism is fixed on the vice mounting panel of second, and the second vacuum tube is fixed on the second main mounting panel, and the switching pivot drives the closure or the disconnection of second vacuum tube, and a plurality of second switching contact mechanism synchronous motion of voltage regulation pivot drive simultaneously.
As a preferable scheme: the second switching contact mechanism comprises a clamping type fixed contact assembly and a movable contact piece, the clamping type fixed contact assemblies are fixed on one side of the second mounting plate in an arc shape, the movable contact piece is sleeved on the voltage regulating rotating shaft, the movable contact piece is in an arc shape, and is always contacted with one of the clamping type fixed contact assemblies, and the movable contact piece moves along with the voltage regulating rotating shaft to be switched among the other clamping type fixed contact assemblies.
As a preferable scheme: the pressure regulating pivot is last to be equipped with three cams, and one side of every cam still is equipped with lever assembly, lever assembly includes the lever of fixing on the mounting panel through the fulcrum and fixes the pull rod in lever one end, the other end of lever is contacted with the cam, cam drive pull rod motion opens or closes the second vacuum tube.
As a preferable scheme: the lever is L-shaped, and one end of the lever, which is contacted with the cam, is also provided with a roller.
As a preferable scheme: and the second mounting plate is also provided with a pressure regulating right-angle support plate, and the pull rod penetrates through the pressure regulating right-angle support plate.
As a preferable scheme: the gear selection mechanism further comprises a selection support arranged at one end of the second main mounting plate and selection movable contact pieces positioned at two sides of the selection support, a plurality of selection fixed contacts are arranged at two sides of one end of the selection support at circular arc intervals respectively, the positions of the selection fixed contacts at two sides are staggered with each other, one end of the selection support is also provided with a normally closed fixed contact piece, the two selection movable contact pieces are fixed with the selection rotating shaft, one end of the selection movable contact piece is in contact with the normally closed fixed contact piece, and the other end of the selection movable contact piece is switched among a plurality of other selection fixed contact pieces along with the movement of the selection rotating shaft.
As a preferable scheme: the selection support is integrally formed with the second main mounting plate, and is integrally disc-shaped, and the selection movable contact piece is double-layer clamping piece type.
As a preferable scheme: one end of the pressure regulating rotating shaft is also provided with a gear, the second permanent magnet mechanism drives the gear on the pressure regulating rotating shaft to rotate through a rack, and the cam arranged on the pressure regulating rotating shaft rotates to complete the combined action of the pressure regulating vacuum tube.
As a preferable scheme: the circuit switching mechanism comprises two second mounting plates and two second switching contact mechanisms, wherein a second vacuum tube is fixed on one surface of one second mounting plate, a transition resistor is also fixed on the other surface of the other second mounting plate, and the two second switching contact mechanisms are respectively fixed on the two surfaces of the other second mounting plate.
The invention adopts a single-resistance single-vacuum circuit, and can realize full-vacuum arc extinction by only adopting one vacuum tube for each phase, thereby greatly reducing the consumption of the vacuum tube and improving the economical efficiency of products; the invention adopts a modularized design, and each phase of the switch is designed into an independent module. Meanwhile, the modularized manufacturing and assembling processes are adopted, so that the production and manufacturing cost of the switch is effectively reduced, and the economical efficiency is improved.
The invention relates to an action mechanism design: the voltage regulating module adopts a combined design, a selector is driven by a gear motor to select gears, and then a change-over switch is driven by a permanent magnet operating mechanism to realize gear switching. The second switching contact mechanism adopts novel clamping piece type design, reasonable design contact layout structure, miniaturized design and smaller contact volume with the same current carrying capacity.
Drawings
FIG. 1 is a schematic diagram of an explosion structure of a pressure regulating device of the present invention;
FIG. 2 is a schematic diagram of an explosion structure of the voltage regulating module of the present invention;
FIG. 3 is a schematic diagram of a voltage regulating module according to the present invention;
FIG. 4 is a schematic diagram of a front structure of a voltage regulating module according to the present invention;
FIG. 5 is a schematic diagram of the top structure of the voltage regulating module of the present invention;
FIG. 6 is a diagram showing the operation process of the circuit switching mechanism of the voltage regulating module according to the present invention;
fig. 7 is a timing diagram of a circuit switching mechanism of the voltage regulating module according to the present invention.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
The novel on-load voltage-regulating tapping switch as shown in fig. 1 to 5 comprises three voltage-regulating modules, a permanent magnet mechanism 12 and a voltage-regulating rotating shaft 104, wherein each voltage-regulating module comprises a gear selection mechanism and a circuit switching mechanism, a plurality of selection fixed contacts 101 and a circuit switching mechanism with selection movable contact pieces 102 are arranged on the gear selection mechanism, the voltage-regulating rotating shaft 104 penetrates through the circuit switching mechanisms of the three groups of voltage-regulating modules, the second permanent magnet mechanism 12 drives the voltage-regulating rotating shaft 104 to rotate, the circuit switching mechanism comprises a second main mounting plate 1051, a second auxiliary mounting plate 105, a plurality of second switching contact mechanisms and a second vacuum tube 106, the second switching contact mechanisms are fixed on the second auxiliary mounting plate, the second vacuum tube is fixed on the second main mounting plate, the voltage-regulating rotating shaft 104 drives the second vacuum tube 106 to be closed or opened, and the voltage-regulating rotating shaft 104 drives the second switching contact mechanisms to synchronously move.
The second switching contact mechanism comprises a clamping type fixed contact component and a movable contact piece, the clamping type fixed contact components are fixed on one side of the second mounting plate 105 in an arc shape, and the movable contact piece is sleeved on the voltage regulating rotating shaft 104.
The movable contact piece of the second switching contact mechanism, that is, the voltage-regulating movable contact piece 109 is arc-shaped, and the voltage-regulating movable contact piece 109 is always in contact with one of the voltage-regulating clip type fixed contact assemblies 108, and the voltage-regulating movable contact piece 109 moves along with the voltage-regulating rotating shaft to switch among the other voltage-regulating clip type fixed contact assemblies 108.
The pressure regulating pivot 104 is provided with three cams 202, one side of each cam 202 is also provided with a lever assembly, the lever assembly comprises a lever 204 fixed on the mounting plate through a fulcrum and a pull rod 209 fixed at one end of the lever, the other end of the lever 204 is in contact with the cams 202, and the cams 202 drive the pull rod 209 to move to open or close the second vacuum tube 106. The lever 204 is L-shaped, and the end of the lever 204 contacting the cam 22 is also provided with a roller. The second mounting plate is further provided with a pressure-regulating right-angle support plate 107, and the pull rod 209 penetrates through the pressure-regulating right-angle support plate 107.
The voltage regulating device further comprises a selection rotating shaft 19 and an electric mechanism 13, wherein the selection rotating shaft 19 penetrates through gear selection mechanisms of the three groups of voltage regulating modules 11, the electric mechanism 13 drives the selection rotating shaft 19 to rotate, the gear selection mechanism further comprises a selection support 103 arranged at one end of a second main mounting plate and selection movable contacts arranged at two sides of the selection support, a plurality of selection fixed contacts 101 are arranged at two sides of one end of the selection support 103 at circular arc intervals respectively, the positions of the selection fixed contacts 101 at two sides are staggered with each other, one end of the selection support 103 is further provided with a normally closed contact, the two selection movable contacts are fixed with the selection rotating shaft, one end of each selection movable contact is in contact with the normally closed fixed contact 110, and the other end of each selection movable contact moves along with the selection rotating shaft 19 to be switched among the other plurality of selection fixed contacts 101.
The selection support is integrally formed with the second main mounting plate, the whole selection support is disc-shaped, and the selection movable contact 102 is of a double-layer clamping type.
One end of the pressure regulating rotating shaft is also provided with a gear 14, the second permanent magnet mechanism drives the gear 14 on the pressure regulating rotating shaft 104 to rotate through a pressure regulating rack 15, and a cam arranged on the pressure regulating rotating shaft rotates to complete the combined action of the pressure regulating vacuum tube.
The circuit switching mechanism comprises two second mounting plates and two second switching contact mechanisms, wherein a second vacuum tube is fixed on one surface of one second mounting plate, a transition resistor 210 is also fixed on the other surface, and the two second switching contact mechanisms are respectively fixed on two surfaces of the other second mounting plate.
The bottom of the pressure regulating device is provided with a fixed plate 18, two ends of the pressure regulating device are provided with side plates 16, a middle partition plate 17 is arranged among the electric mechanism, the second permanent magnetic mechanism and the pressure regulating module,
The bistable permanent magnet mechanism is adopted for realizing vacuum operation, so that the structure is simple, and the vacuum tube is reliably opened and closed in place; the pressure regulating device adopts a miniature electric mechanism with a speed reducing device to carry out electric selection and a combined structure of a second permanent magnet mechanism. The selection and switching are each of independent module designs. The gear selection mechanism can meet the selection of multiple tapping positions (earth 4 multiplied by 2.5%), and the circuit switching mechanism is structurally composed of two second switching contact mechanisms, including one group of isolated switching contact K contacts and the other group of current output contact M contacts. The two groups of contacts are converted under no load, and after voltage regulation is completed, the K contact and the M contact are finally guided to the working branch joint to play a role in separating single and double tapping intervals.
The voltage regulating device is provided with an interlocking device for the operation of the second permanent magnet mechanism and the electric mechanism, and once the second permanent magnet mechanism fails to operate, an alarm signal is immediately sent out. Meanwhile, an interlocking device operated by the second permanent magnet mechanism and the electric mechanism is further started, so that the occurrence of pre-selected burning tap accidents of the tap selector contact under load is prevented, and the reliability of the voltage regulating switch is improved.
Description of the Voltage regulating operation of the invention
The pressure regulating device can only adopt a miniature electric mechanism with a speed reducing device to carry out electric selection and a combined structure of the second permanent magnetic mechanism under the restriction of the working conditions of two stations of the permanent magnetic mechanism. The structure is arranged to mutually independent the selection of tapping position and the switching of the transition circuit.
After receiving the voltage regulating instruction, the voltage regulating device starts the miniature electric mechanism to drive the mechanical coupler of the tapping selector and the sheave mechanism, so that the roller of the groove pulling piece drives the sheave, the sheave rotates to drive the selection movable contact 102 to preselect the single and double tapping fixed contacts under no load according to the progressive control principle, gear transmission can be adopted between the miniature electric mechanism and the selection rotating shaft, and once preselection is finished, a signal is sent to instruct the second permanent magnet mechanism to act, the voltage regulating rack on the second permanent magnet mechanism drives the gear on the voltage regulating rotating shaft to rotate, and the cam is arranged on the voltage regulating rotating shaft to rotate, so that the second vacuum tube completes the combined action.
Description of operation of pressure regulator
As shown in fig. 6 and 7, the circuit switching mechanism of the voltage regulating device is structurally composed of two second switching contact mechanisms, including a group of isolation switching contact K contact, K i contact, K ii contact and another group of current output contact M contact, M iii contact, M iv contact, the voltage regulating rotating shaft of the circuit switching mechanism synchronously acts according to the voltage regulating action change program diagram, and the steps are as follows:
1. And the tapping 1 works, the second vacuum tube V is closed, the K contact is communicated with the K I contact, and the M contact is communicated with the M III contact.
2. The K contact is kept on with the K I contact, the M contact is kept on with the M III contact, the second vacuum tube V is disconnected, and the transition resistor R is connected.
3. And after the K contact is switched and the K contact is disconnected from the K I contact, the K contact is conducted with the K II contact, the M contact is conducted with the M III contact, and the second vacuum tube V is disconnected.
4. Tap 1 and tap 2 bridge, the K contact is in conduction with the kii contact, the M contact is in conduction with the mbii contact, and the second vacuum tube V is closed.
5. The M contact is bridged with the MIII contact and the MIV contact, the K contact is opened with the KII contact, and the second vacuum tube V is closed.
6. The M contact is disconnected with the MIII contact, the M contact is kept on with the MIV contact, the K contact is disconnected with the KII contact, and the second vacuum tube V is closed.
7. And the tapping 2 works, the M contact is disconnected with the MIV contact, the K contact is connected with the KII contact, and the second vacuum tube V is disconnected.
The voltage regulating rotating shaft is driven to complete the conversion operation once every turn. Once the vacuum OLTC is reversed (n→1) to the conversion operation, the tap selector is not moved and only the change-over switch is completed.
It should be noted that the above embodiments are merely representative examples of the present invention. Many variations of the invention are possible. Any simple modification, equivalent variation and modification of the above embodiments according to the principles of the present invention should be considered to fall within the scope of the present invention.
Claims (7)
1. An on-load voltage regulation tap changer, characterized in that: the circuit switching mechanism comprises a second main mounting plate, a second auxiliary mounting plate, a plurality of second switching contact mechanisms and a second vacuum tube, wherein the second switching contact mechanisms are fixed on the second auxiliary mounting plate, the second vacuum tube is fixed on the second main mounting plate, the voltage regulating rotating shaft drives the second vacuum tube to be closed or opened, and the voltage regulating rotating shaft drives the second switching contact mechanisms to synchronously move;
The second switching contact mechanism comprises a clamping type fixed contact assembly and a movable contact piece, the clamping type fixed contact assemblies are fixed on one side of the second auxiliary mounting plate in an arc shape, the movable contact piece is sleeved on the voltage regulating rotating shaft, the movable contact piece is in an arc shape, and is always contacted with one of the clamping type fixed contact assemblies, and the movable contact piece moves along with the voltage regulating rotating shaft to be switched among the other clamping type fixed contact assemblies;
the gear selection mechanism further comprises a selection support arranged at one end of the second main mounting plate and selection movable contact pieces positioned at two sides of the selection support, a plurality of selection fixed contacts are arranged at two sides of one end of the selection support at circular arc intervals respectively, the positions of the selection fixed contacts at two sides are staggered with each other, one end of the selection support is also provided with a normally closed fixed contact piece, the two selection movable contact pieces are fixed with the selection rotating shaft, one end of the selection movable contact piece is in contact with the normally closed fixed contact piece, and the other end of the selection movable contact piece is switched among a plurality of other selection fixed contact pieces along with the movement of the selection rotating shaft.
2. The on-load tap changer of claim 1, wherein: the pressure regulating pivot is last to be equipped with three cams, and one side of every cam still is equipped with lever assembly, lever assembly includes the lever of fixing on the mounting panel through the fulcrum and fixes the pull rod in lever one end, the other end of lever is contacted with the cam, cam drive pull rod motion opens or closes the second vacuum tube.
3. An on-load tap changer as claimed in claim 2, wherein: the lever is L-shaped, and one end of the lever, which is contacted with the cam, is also provided with a roller.
4. An on-load tap changer as claimed in claim 2, wherein: and the second main mounting plate is also provided with a pressure regulating right-angle support plate, and the pull rod penetrates through the pressure regulating right-angle support plate.
5. The on-load tap changer of claim 1, wherein: the selection support is integrally formed with the second main mounting plate, and is integrally disc-shaped, and the selection movable contact piece is double-layer clamping piece type.
6. The on-load tap changer of claim 1, wherein: one end of the pressure regulating rotating shaft is also provided with a gear, the second permanent magnet mechanism drives the gear on the pressure regulating rotating shaft to rotate through a rack, and the cam arranged on the pressure regulating rotating shaft rotates to complete the combined action of the pressure regulating vacuum tube.
7. The on-load tap changer of claim 1, wherein: the circuit switching mechanism comprises two second mounting plates and two second switching contact mechanisms, wherein a second vacuum tube is fixed on one surface of one second mounting plate, a transition resistor is also fixed on the other surface of the other second mounting plate, and the two second switching contact mechanisms are respectively fixed on the two surfaces of the other second mounting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811518699.5A CN109411254B (en) | 2018-12-12 | 2018-12-12 | Novel on-load voltage-regulating tapping switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811518699.5A CN109411254B (en) | 2018-12-12 | 2018-12-12 | Novel on-load voltage-regulating tapping switch |
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| Publication Number | Publication Date |
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| CN109411254A CN109411254A (en) | 2019-03-01 |
| CN109411254B true CN109411254B (en) | 2024-08-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811518699.5A Active CN109411254B (en) | 2018-12-12 | 2018-12-12 | Novel on-load voltage-regulating tapping switch |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110660596A (en) * | 2019-09-28 | 2020-01-07 | 保定市鑫通电器设备有限公司 | Compact-transmission vacuum on-load tap-changer |
| CN112201532B (en) * | 2020-08-26 | 2023-01-24 | 广东电网有限责任公司佛山供电局 | On-load tap-changer control device |
| DE102020122453A1 (en) * | 2020-08-27 | 2022-03-03 | Maschinenfabrik Reinhausen Gmbh | on-load tap-changer module |
| 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 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106409549A (en) * | 2016-12-14 | 2017-02-15 | 浙江腾龙电器有限公司 | Horizontal bar-shaped combined type vacuum on-load tap switch |
| CN209418348U (en) * | 2018-12-12 | 2019-09-20 | 浙江腾龙电器有限公司 | A kind of novel on-load tap changer |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106409549A (en) * | 2016-12-14 | 2017-02-15 | 浙江腾龙电器有限公司 | Horizontal bar-shaped combined type vacuum on-load tap switch |
| CN209418348U (en) * | 2018-12-12 | 2019-09-20 | 浙江腾龙电器有限公司 | A kind of novel on-load tap changer |
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