CN111668005A - Novel CM type on-load tap-changer - Google Patents
Novel CM type on-load tap-changer Download PDFInfo
- Publication number
- CN111668005A CN111668005A CN202010283530.7A CN202010283530A CN111668005A CN 111668005 A CN111668005 A CN 111668005A CN 202010283530 A CN202010283530 A CN 202010283530A CN 111668005 A CN111668005 A CN 111668005A
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- China
- Prior art keywords
- selector
- over switch
- change
- tapping
- novel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 238000010079 rubber tapping Methods 0.000 claims abstract description 29
- 239000004593 Epoxy Substances 0.000 claims abstract description 18
- 230000007246 mechanism Effects 0.000 claims abstract description 18
- 238000009413 insulation Methods 0.000 claims abstract description 12
- 239000003365 glass fiber Substances 0.000 claims abstract description 10
- 238000009434 installation Methods 0.000 claims abstract description 8
- 230000005540 biological transmission Effects 0.000 claims abstract description 7
- 238000001125 extrusion Methods 0.000 claims abstract description 7
- 238000006243 chemical reaction Methods 0.000 claims abstract description 6
- 230000003068 static effect Effects 0.000 claims abstract description 6
- 239000002184 metal Substances 0.000 claims abstract description 5
- 229910052751 metal Inorganic materials 0.000 claims abstract description 5
- 238000010438 heat treatment Methods 0.000 claims abstract description 4
- 230000008859 change Effects 0.000 claims description 15
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 238000003825 pressing Methods 0.000 claims description 5
- 238000004080 punching Methods 0.000 claims description 4
- 239000002131 composite material Substances 0.000 claims description 3
- 229920000642 polymer Polymers 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 239000011521 glass Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 238000004804 winding Methods 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Train Traffic Observation, Control, And Security (AREA)
Abstract
The invention discloses a novel CM type on-load tap-changer, which comprises an oil chamber cover, a change-over switch, a tap-changer and an oil chamber, the change-over switch comprises an epoxy glass fiber extrusion pull rod, a change-over switch supporting structure, a quick mechanism bottom plate, a change-over switch moving arc contact bracket and a static arc contact mounting and fixing mechanism, the change-over switch supporting structure is provided with a change-over switch movable main contact and a rotating bracket, the quick mechanism bottom plate is formed by integrally flanging and stretching a metal part, the thickness of the rotating bracket is 9.5mm, the soft connecting structure adopts heat treatment process treatment, the tapping selector comprises a selector intermediate shaft, an extrusion pull rod formed by drawing epoxy glass fibers, a transmission rod formed by drawing epoxy glass fibers, a bottom all-insulation selector, an insulation tapping selector lower rocker arm, a polarity conversion selector and a tapping selector upper rocker arm. The improved equipment is reliable in installation and positioning, more convenient to maintain and greatly prolonged in service life.
Description
Technical Field
The invention relates to the technical field of on-load tap-changers, in particular to a novel CM type on-load tap-changer.
Background
An on-load tap changer refers to a voltage regulating device suitable for operation under transformer excitation or load for changing the tapping connection position of a transformer winding. The basic principle is to realize the switching between taps in the transformer winding under the condition of ensuring that the load current is not interrupted, thereby changing the number of turns of the winding, namely the voltage ratio of the transformer, and finally realizing the purpose of voltage regulation.
The existing on-load tap-changer has the problems of unreliable installation and positioning, inconvenient maintenance and short service life.
Disclosure of Invention
The present invention is directed to a novel CM type on-load tap changer to solve the problems set forth in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a novel CM type on-load tap changer, includes oil chamber cap, change over switch, tapping selector and grease chamber, change over switch includes crowded pull rod of epoxy glass silk fibre, change over switch bearing structure, quick-operation mechanism bottom plate, change over switch move arc contact support, quiet arc contact installation fixed establishment, be provided with change over switch on the change over switch bearing structure and move main contact and rotate the support, the quick-operation mechanism bottom plate is stretched by the whole turn-ups of metal part and forms, it is 9.5mm to rotate support thickness, quiet arc contact installation fixed establishment includes screw rod shaped contact, clamp plate and lock nut, change over switch moves main contact and is the whole splint structure of polymer, be provided with soft connection structure on the change over switch moves main contact, soft connection structure takes heat treatment process to handle, the tapping selector includes selector jackshaft, the crowded pull rod of epoxy glass silk extraction shaping, and draws the pole, The device comprises a transmission rod formed by drawing and drawing epoxy glass wires, a bottom all-insulation selector, an insulation tapping selector lower rocker arm, a polarity conversion selector and a tapping selector upper rocker arm.
Preferably, an insulation space is provided between the lead wires of the selector intermediate shaft.
Preferably, the switch supporting structure is formed by rigidly connecting a supporting insulating cylinder and an upper supporting plate and a lower supporting plate.
Preferably, the selector intermediate shaft is formed by splicing two sections in an assembling manner, and the selector intermediate shaft is made of a high-strength composite material.
Preferably, the rocker arm on the tapping selector adopts a steel plate punching piece.
Compared with the prior art, the invention has the beneficial effects that:
the improved equipment is reliable in installation and positioning, more convenient to maintain and greatly prolonged in service life.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of a diverter switch according to the present invention;
FIG. 3 is a schematic bottom structure view of the diverter switch of the present invention;
FIG. 4 is a schematic view of the structure of the epoxy glass fiber tension rod of the present invention;
FIG. 5 is a schematic structural diagram of a diverter switch support structure according to the present invention;
FIG. 6 is a schematic view of the bottom plate structure of the quick mechanism of the present invention;
FIG. 7 is a schematic view of a rotating bracket according to the present invention;
FIG. 8 is a schematic structural view of a moving arc contact holder of the diverter switch of the present invention;
FIG. 9 is a schematic structural view of a fixed arc contact mounting mechanism of the present invention;
FIG. 10 is a schematic view of the movable main contact structure of the diverter switch of the present invention;
FIG. 11 is a schematic structural view of a flexible connection structure of the present invention;
FIG. 12 is a schematic view of a tap selector of the present invention;
FIG. 13 is a schematic diagram of a bottom all-insulated selector configuration of the present invention;
FIG. 14 is a schematic representation of the construction of the selector intermediate shaft of the present invention;
FIG. 15 is a schematic diagram of a polarity switch selector according to the present invention;
FIG. 16 is a schematic view of the lower rocker arm configuration of the insulation tap selector of the present invention;
fig. 17 is a lead assembly view of the selector intermediate shaft of the present invention.
In the figure: 1. an oil chamber cover; 2. a switch; 3. an oil chamber; 4. a tap selector; 5. a diverter switch support structure; 6. a quick mechanism base plate; 7. a switch moving arc contact support; 8. a fixed mechanism is installed on the static arc contact; 9. a movable main contact of the switch; 10. rotating the bracket; 11. a screw-shaped contact; 12. pressing a plate; 13. locking the nut; 14. a flexible connection structure; 15. an upper rocker arm of the tapping selector; 16. a polarity inversion selector; 17. an insulating tap selector lower rocker arm; 18. a bottom all-insulated selector; 19. a transmission rod; 20. a squeezing and pulling rod formed by drawing epoxy glass filaments; 21. a selector intermediate shaft; 22. epoxy glass fiber tension rods; 23. an insulating spacer layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-16, the present invention provides a technical solution: a novel CM type on-load tap-changer comprises an oil chamber cover 1, a change-over switch 2, a tap selector 4 and an oil chamber 3, wherein the oil chamber cover 1 is connected with the change-over switch 2, the change-over switch 2 is connected with the oil chamber 3, the oil chamber 3 is connected with the tap selector 4, the change-over switch 2 comprises an epoxy glass fiber extrusion rod 22, a change-over switch supporting structure 5, a quick mechanism bottom plate 6, a change-over switch moving arc contact support 7 and a static arc contact installation and fixing mechanism 8, the epoxy glass fiber extrusion rod 22 is positioned in the change-over switch supporting structure 5, the quick mechanism bottom plate 6 and the change-over switch moving arc contact support 7 are arranged on the change-over switch supporting structure 5, the change-over switch moving arc contact support 7 comprises an upper moving contact, a lower moving contact, a copper bar for connecting the upper moving contact and the lower moving contact, an upper wiring piece, a lower wiring piece and an upper locking piece, the lower sliding sleeve and the upper and lower L-shaped supports which are made of steel plates through stamping forming, the transverse edges of the upper and lower L-shaped supports are arranged on the upper and lower contacts, the upper and lower sliding sleeves are sleeved on the vertical edges of the upper and lower L-shaped supports and are rubbed with the upper and lower guide plates which are made of polymer insulating materials by the upper and lower sliding sleeves, a change-over switch movable main contact 9 and a rotating support 10 are arranged on a change-over switch supporting structure 5, a quick mechanism bottom plate 6 is formed by integrally flanging and stretching metal parts, the thickness of the rotating support 10 is 9.5mm, a static arc contact mounting and fixing mechanism 8 comprises a screw rod-shaped contact 11, a pressing plate 12 and a locking nut 13, the screw rod-shaped contact 11 penetrates through holes on the change-over switch movable arc contact support 7 and the pressing plate 12 and is in threaded connection with the locking nut 13, the locking nut 13 is tightly attached to one side of the pressing plate 12, the change-over switch movable main contact 9 is, the soft connection structure 14 is processed by adopting a heat treatment process, the tapping selector 4 comprises a selector intermediate shaft 21, an epoxy glass wire drawing-formed squeezing-pulling rod 22, an epoxy glass wire drawing-formed transmission rod 20, a bottom all-insulation selector 18, an insulation tapping selector lower rocker arm 17, a polarity conversion selector 16, a tapping selector upper rocker arm 15 and the selector intermediate shaft 21, the selector intermediate shaft 21 is positioned between the tapping selector upper rocker arm 15 and the insulation tapping selector lower rocker arm 17, the upper rocker arm 15 and the insulation tapping selector lower rocker arm 17 are connected through the epoxy glass wire drawing-formed transmission rod 20, and the polarity conversion selector 16 is connected with the epoxy glass wire drawing-formed transmission rod 20.
Specifically, as shown in fig. 17, an insulating spacer layer 23 is provided between the lead wires of the selector intermediate shaft 21, so that the electrical performance between the lead wires is ensured, and the operational reliability is improved.
Specifically, the switch supporting structure 5 is formed by rigidly connecting a supporting insulating cylinder and an upper supporting plate and a lower supporting plate, and has good structural stability.
Specifically, the selector intermediate shaft 21 is formed by splicing two sections in an assembled manner, and the selector intermediate shaft 21 is made of a high-strength composite material.
Specifically, the upper rocker arm 15 of the tapping selector is a steel plate punching piece, the upper rocker arm 15 of the original tapping selector is a steel casting piece and is positioned at an eccentric position, driving is strenuous, the weight of the steel plate punching piece is less than one half of that of the original steel casting piece, the flexibility of action of the polarity conversion selector 16 is increased by the novel structure, and mechanical abrasion is reduced.
The lower rocker arm 17 of the insulating tapping selector replaces the traditional lower rocker arm of the tapping selector, the traditional lower rocker arm of the tapping selector is heavy in weight and large in driving torque, metal parts in a transformer can also influence the insulating distance from a switch to the bottom and the wall of the transformer box, the traditional lower rocker arm of the tapping selector is replaced by the lower rocker arm 17 of the existing insulating tapping selector, the weight is light, the driving is light and flexible, and the insulating distance between the lower rocker arm 17 of the insulating tapping selector and the periphery of the transformer shell is increased by adopting the lower rocker arm 17 of the insulating tapping selector.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A novel CM type on-load tap-changer comprises an oil chamber cover, a change-over switch, a tap selector and an oil chamber, and is characterized in that: the change over switch comprises an epoxy glass fiber extrusion pull rod, a change over switch supporting structure, a quick mechanism bottom plate, a change over switch moving arc contact support and a static arc contact installation fixing mechanism, wherein a change over switch moving main contact and a rotating support are arranged on the change over switch supporting structure, the quick mechanism bottom plate is formed by integrally flanging and stretching metal parts, the thickness of the rotating support is 9.5mm, the static arc contact installation fixing mechanism comprises a screw rod-shaped contact, a pressing plate and a locking nut, the change over switch moving main contact is of a high-polymer integral clamping plate structure, a soft connecting structure is arranged on the change over switch moving main contact and adopts heat treatment technology for treatment, and the tapping selector comprises a selector intermediate shaft, an epoxy glass fiber extrusion pull rod, an epoxy glass fiber extrusion transmission rod, a bottom full-insulation selector, The device comprises an insulating tapping selector lower rocker arm, a polarity conversion selector and a tapping selector upper rocker arm.
2. A novel CM type on-load tap changer according to claim 1, characterized in that: and an insulation interval is arranged between the lead wires of the selector intermediate shaft.
3. A novel CM type on-load tap changer according to claim 1, characterized in that: the switch supporting structure is formed by rigidly connecting a supporting insulating cylinder and an upper supporting plate and a lower supporting plate.
4. A novel CM type on-load tap changer according to claim 1, characterized in that: the selector intermediate shaft is formed by splicing two sections of assembled parts, and the selector intermediate shaft is made of a high-strength composite material.
5. A novel CM type on-load tap changer according to claim 1, characterized in that: and the upper rocker arm of the tapping selector adopts a steel plate punching piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010283530.7A CN111668005A (en) | 2020-04-13 | 2020-04-13 | Novel CM type on-load tap-changer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010283530.7A CN111668005A (en) | 2020-04-13 | 2020-04-13 | Novel CM type on-load tap-changer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111668005A true CN111668005A (en) | 2020-09-15 |
Family
ID=72382682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010283530.7A Pending CN111668005A (en) | 2020-04-13 | 2020-04-13 | Novel CM type on-load tap-changer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111668005A (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11329870A (en) * | 1998-05-18 | 1999-11-30 | Toshiba Corp | On-load tap changer |
| JP2002280229A (en) * | 2001-03-16 | 2002-09-27 | Takaoka Electric Mfg Co Ltd | On-load tap changer |
| CN2800455Y (en) * | 2005-01-31 | 2006-07-26 | 上海华明电力设备制造有限公司 | Combined type on-load tap-changer |
| CN1841583A (en) * | 2005-03-28 | 2006-10-04 | 上海华明电力设备制造有限公司 | Combined type on-load tap-changer |
| CN101651029A (en) * | 2009-07-30 | 2010-02-17 | 上海华明电力设备制造有限公司 | Vacuum vessel switching core used by on-load tap-changer |
| CN102623201A (en) * | 2011-01-30 | 2012-08-01 | 上海华明电力设备制造有限公司 | Composite vacuum on-load tap-changer with external selector |
| CN203218116U (en) * | 2013-03-20 | 2013-09-25 | 上海华明电力设备制造有限公司 | A lower crank arm of a combined on-load tap-changer change-over selector |
| CN203250645U (en) * | 2013-04-17 | 2013-10-23 | 上海华明电力设备制造有限公司 | Lower central sleeve of combined-type on-load tap changer selector |
| CN203377118U (en) * | 2013-07-25 | 2014-01-01 | 上海华明电力设备制造有限公司 | Fixing structure of on-load tap-changer transition fixed contact |
| CN203536270U (en) * | 2013-10-29 | 2014-04-09 | 上海华明电力设备制造有限公司 | Rocker arm of power transformer on-load voltage regulating tapping switch change-over selector |
| CN203536241U (en) * | 2013-10-29 | 2014-04-09 | 上海华明电力设备制造有限公司 | Electrodynamic mechanism case of power transformer on-load voltage regulating tapping switch |
| CN204596645U (en) * | 2015-02-05 | 2015-08-26 | 上海华明电力设备制造有限公司 | A kind of diverter switch mounting structure |
-
2020
- 2020-04-13 CN CN202010283530.7A patent/CN111668005A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11329870A (en) * | 1998-05-18 | 1999-11-30 | Toshiba Corp | On-load tap changer |
| JP2002280229A (en) * | 2001-03-16 | 2002-09-27 | Takaoka Electric Mfg Co Ltd | On-load tap changer |
| CN2800455Y (en) * | 2005-01-31 | 2006-07-26 | 上海华明电力设备制造有限公司 | Combined type on-load tap-changer |
| CN1841583A (en) * | 2005-03-28 | 2006-10-04 | 上海华明电力设备制造有限公司 | Combined type on-load tap-changer |
| CN101651029A (en) * | 2009-07-30 | 2010-02-17 | 上海华明电力设备制造有限公司 | Vacuum vessel switching core used by on-load tap-changer |
| CN102623201A (en) * | 2011-01-30 | 2012-08-01 | 上海华明电力设备制造有限公司 | Composite vacuum on-load tap-changer with external selector |
| CN203218116U (en) * | 2013-03-20 | 2013-09-25 | 上海华明电力设备制造有限公司 | A lower crank arm of a combined on-load tap-changer change-over selector |
| CN203250645U (en) * | 2013-04-17 | 2013-10-23 | 上海华明电力设备制造有限公司 | Lower central sleeve of combined-type on-load tap changer selector |
| CN203377118U (en) * | 2013-07-25 | 2014-01-01 | 上海华明电力设备制造有限公司 | Fixing structure of on-load tap-changer transition fixed contact |
| CN203536270U (en) * | 2013-10-29 | 2014-04-09 | 上海华明电力设备制造有限公司 | Rocker arm of power transformer on-load voltage regulating tapping switch change-over selector |
| CN203536241U (en) * | 2013-10-29 | 2014-04-09 | 上海华明电力设备制造有限公司 | Electrodynamic mechanism case of power transformer on-load voltage regulating tapping switch |
| CN204596645U (en) * | 2015-02-05 | 2015-08-26 | 上海华明电力设备制造有限公司 | A kind of diverter switch mounting structure |
Non-Patent Citations (2)
| Title |
|---|
| 张德明，杨建琴: "《CMB型有载分接开关简介》", vol. 43, no. 2, pages 32 - 33 * |
| 樊自田，蒋文明，魏青松，宋波，黄安国等: "《先进金属材料成形技术与理论》", pages: 10 - 13 * |
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