CN105261499A - High-voltage big-current multistage positive and negative adjustment cage-type tap changer - Google Patents
High-voltage big-current multistage positive and negative adjustment cage-type tap changer Download PDFInfo
- Publication number
- CN105261499A CN105261499A CN201510736251.0A CN201510736251A CN105261499A CN 105261499 A CN105261499 A CN 105261499A CN 201510736251 A CN201510736251 A CN 201510736251A CN 105261499 A CN105261499 A CN 105261499A
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- CN
- China
- Prior art keywords
- contact
- fixed contact
- moving contact
- cage body
- tap changer
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- 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.)
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Classifications
-
- 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
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F29/00—Variable transformers or inductances not covered by group H01F21/00
-
- 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
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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 high-voltage big-current multistage positive and negative adjustment cage-type tap changer. The tap changer comprises an installation flange, a static contact installation cage body, multiple static contacts connected with coil taps of a transformer, a tapping driving mechanism installed on the installation flange, a switch core shaft, and multiple moving contact assemblies. The switch core shaft is arranged in the center of a circle of the static contact installation cage body and is driven by the tapping driving mechanism. The moving contact assemblies are installed on the switch core shaft and synchronously revolve along the switch core shaft. Based on the positive and negative voltage regulation wiring principle, multiple static contacts are divided into at least two layers of static contact groups and axially distributed on the static contact installation cage body along the static contact installation cage body. The corresponding static contacts among layers are conductively connected. According to the invention, numbers of the coil taps of the transformer are reduced; current carrying ability of the switch is improved; and current carrying ability of the switch can be easily changed as required.
Description
Technical field
The present invention relates to sub-connecting switch of transformer technical field, particularly the multistage positive and negative tune cage modle off circuit tap changer of high-voltage great-current.
Background technology
Cage modle off circuit tap changer is widely used in Modern power distribution transformer, conventional use fewer without the gear involved by excitation cage modle shunting switch, voltage is lower, electric current is less.The needs of two 1,000,000 (i.e. 1,000,000 Kw, 1,000,000 V) distribution transformer cannot be adapted to.
Summary of the invention
Technical problem to be solved by this invention is cannot adapt to the problem of the needs of two 1,000,000 (i.e. 1,000,000 Kw, 1,000,000 V) distribution transformer without excitation cage modle shunting switch for existing and provide one can adapt to the multistage positive and negative tune cage modle off circuit tap changer of high-voltage great-current of the needs of pair 1,000,000 (i.e. 1,000,000 Kw, 1,000,000 V) distribution transformer.
Technical problem to be solved by this invention can be achieved through the following technical solutions:
The multistage positive and negative tune cage modle off circuit tap changer of high-voltage great-current, comprising:
One mounting flange;
One fixed contact be arranged on described mounting flange installs cage body;
Be configured in described fixed contact and some fixed contacts that cage body is connected with transformer coil tap are installed;
One is arranged on the tap driving mechanism on described mounting flange,
One is positioned at described fixed contact installs the cage body center of circle and the switch mandrel driven by described tap driving mechanism;
Being arranged on described switch mandrel and following some moving contact components of described switch mandrel synchronous revolving, different moving contact components is followed in described switch mandrel turning course to contact with different fixed contacts and is realized tap, it is characterized in that:
Described some fixed contacts adopt positive-negative voltage-regulation connection principle, and the axially spaced-apart being divided at least two-layer stationary contact head group to install cage body along described fixed contact is distributed on described fixed contact installation cage body, and between fixed contact corresponding between layers, conduction connects.
In a preferred embodiment of the invention, every layer of stationary contact head group is divided into groups to be distributed in described fixed contact along the axially spaced-apart of described fixed contact installation cage body by least two row's fixed contacts and is installed on cage body, often arrange between fixed contact outside corresponding in fixed contact grouping and connected by busbar, described busbar is provided with installing hole, for being connected with transformer coil tap.
In a preferred embodiment of the invention, the bracing ring that described fixed contact installation cage body is arranged by some axially spaced-aparts is distributed in even circumferential the some insulation laths be fixedly connected with in some bracing ring outer peripheral edges and with described bracing ring and forms, and the corresponding fixed contact axially spaced-apart in fixed contact grouping of often arranging in every layer of stationary contact head group is arranged on same insulation lath.
In a preferred embodiment of the invention, in every layer of stationary contact head group outermost one arrange fixed contact grouping in each fixed contact outside be provided with fixed contact grading ring.
In a preferred embodiment of the invention, on the switch mandrel of described moving contact component and described this section of mounting flange, axially spaced-apart is provided with at least two grading rings.
In a preferred embodiment of the invention, each moving contact component comprises a moving contact installing frame, adopt rotating shaft hinged and on to be arranged in described moving contact installing frame some, lower clamping piece formula moving contact, some upper clip formula moving contacts adopt juxtaposition to combine, some upper clip formula moving contacts adopt juxtaposition to combine, upper slice spring is provided with between each upper clip formula moving contact and upper ledge wall of moving contact installing frame, upper slice spring two side ends is divided into fingertip by the quantity of upper clip formula moving contact, the fingertip of described upper slice spring applies a precompression to respectively described each upper clip formula moving contact, some lower clamping piece formula moving contacts also adopt juxtaposition to combine, a bottom sheet spring is provided with between each lower clamping piece formula moving contact and lower frame wall of moving contact installing frame, the quantity that bottom sheet spring two side ends presses clip type moving contact is divided into fingertip, and the fingertip of described bottom sheet spring applies a precompression to respectively described each lower clamping piece formula moving contact.
Owing to have employed technical scheme as above, fixed contact in the multistage positive and negative tune cage modle off circuit tap changer of high-voltage great-current of the present invention is according to positive-negative voltage-regulation connection principle, multi-layer multi-row circle distribution mode is adopted to arrange, busbar is adopted to be electrically connected between same fixed contact in every layer, it reduces the quantity of voltage regulating coil of transformer tap, increases switch also can change switch according to requirements easily current capacity by the ability of electric current.The multistage positive and negative tune cage modle off circuit tap changer of high-voltage great-current of the present invention is arranged by outermost one in every layer of stationary contact head group and to be provided with fixed contact grading ring outside each fixed contact in fixed contact grouping and axially spaced-apart is provided with at least two grading rings on the mandrel of described moving contact and described this section of mounting flange, improve the insulation against ground ability of switch, reduce switch height.
Accompanying drawing explanation
Fig. 1 is the multistage positive and negative tune cage modle off circuit tap changer overall structure schematic diagram of high-voltage great-current of the present invention.
Fig. 2 is the electric principle schematic of the multistage positive and negative tune cage modle off circuit tap changer of high-voltage great-current of the present invention.
Fig. 3 is the structural representation of the multistage positive and negative tune cage modle off circuit tap changer of high-voltage great-current of the present invention every layer of stationary contact head group.
Fig. 4 is the schematic diagram that the same fixed contact in the multistage positive and negative tune cage modle off circuit tap changer of high-voltage great-current of the present invention every layer of stationary contact head group in three row's fixed contacts is connected by busbar.
Fig. 5 is the structural representation of the moving contact component in the multistage positive and negative tune cage modle off circuit tap changer of high-voltage great-current of the present invention.
Embodiment
See the multistage positive and negative tune cage modle off circuit tap changer of the high-voltage great-current shown in Fig. 1 and Fig. 2, figure, comprise a mounting flange 100, a fixed contact is installed in the bottom of mounting flange 100 cage body 200 is installed.
The upper, middle and lower bracing ring 210,220,230 that fixed contact installation cage body 200 is arranged by axially spaced-apart is distributed in even circumferential the 12 blocks of laths 240 that insulate be fixedly connected with in upper, middle and lower bracing ring 210,220,230 outer peripheral edges and with upper, middle and lower bracing ring 210,220,230 and forms.
Be provided with a tap driving mechanism 300 at the top of mounting flange 100, this tap driving mechanism 300 is identical with the structure of the tap driving mechanism in existing multistage positive and negative tune cage modle off circuit tap changer, is not repeating at this.
The switch mandrel 400 driven by tap driving mechanism 300 is positioned at the center of circle that whole fixed contact installs cage body.
The difference of the multistage positive and negative tune cage modle off circuit tap changer of high-voltage great-current of the present invention and existing multistage positive and negative tune cage modle off circuit tap changer is just that some fixed contacts adopt positive-negative voltage-regulation connection principle, and the axially spaced-apart being divided into upper and lower two-layer stationary contact head group 500a, 500b to install cage body 200 along fixed contact is distributed on fixed contact installation cage body 200.Upper and lower two-layer stationary contact head group 500a, 500b then arrange divide into groups 510a, 520a, 530a, 510b, 520b, 530b of fixed contact by upper, middle and lower three respectively and are distributed in fixed contact along the axially spaced-apart that fixed contact installs cage body 200 and install on cage body.
In conjunction with see Fig. 3 and Fig. 4, often arrange fixed contact grouping 510a, 520a, 530a, 510b, 520b, having 12 fixed contacts circumferentially distributed in 530b is arranged on 12 blocks of insulation laths 240, often arrange fixed contact grouping 510a, 520a, the fixed contact outer end be arranged in 530a on same insulation lath 240 is electrically connected by busbar 540a, often arrange fixed contact grouping 510b, 520b, the fixed contact outer end be arranged in 530b on same insulation lath 240 is electrically connected by busbar 540b, then go up, lower two-layer stationary contact head group 500a, the electric principle that 500b provides according to Fig. 2 is electrically connected.
Busbar 540a, 540b are provided with installing hole 541a, 541b, for being connected with transformer coil tap.
Fixed contact grading ring 550a, 560a, 550b, 560b is provided with outside each fixed contact in fixed contact grouping 510a, 530a, 510b, 530b in two-layer stationary contact head group 500a, 500b.
On switch mandrel 400, interval is provided with six row's moving contact component 610a, 620a, 630a, 610b, 620b, the 630b following switch mandrel 400 synchronous revolving vertically, six row moving contact component 610a, 620a, 630a, 610b, 620b, 630b follow in switch mandrel 400 turning course 12 fixed contacts in divide into groups with fixed contact respectively 510a, 520a, 530a, 510b, 520b, 530b and contact and realize tap
In addition, on the switch mandrel 400 of moving contact component 610a and this section of mounting flange 100, axially spaced-apart is provided with upper and lower two grading rings 410,420.
See Fig. 5, each moving contact component comprises a moving contact installing frame 610, adopt rotating shaft 620 hinged and on to be arranged in moving contact installing frame 610 some, lower clamping piece formula moving contact 630, 640, some upper clip formula moving contacts 630 adopt juxtaposition to combine, upper slice spring 650 is provided with between each upper clip formula moving contact 630 and upper ledge wall 611 of moving contact installing frame 610, upper slice spring 650 applies a precompression to upper clip formula moving contact 630, some lower clamping piece formula moving contacts 640 also adopt juxtaposition to combine, a bottom sheet spring 660 is provided with between each lower clamping piece formula moving contact 640 and lower frame wall 612 of moving contact installing frame 610, bottom sheet spring 660 applies a precompression to lower clamping piece formula moving contact 640.
Claims (6)
1. the multistage positive and negative tune cage modle off circuit tap changer of high-voltage great-current, comprising:
One mounting flange;
One fixed contact be arranged on described mounting flange installs cage body;
Be configured in described fixed contact and some fixed contacts that cage body is connected with transformer coil tap are installed;
One is arranged on the tap driving mechanism on described mounting flange,
One is positioned at described fixed contact installs the cage body center of circle and the switch mandrel driven by described tap driving mechanism;
Being arranged on described switch mandrel and following some moving contact components of described switch mandrel synchronous revolving, different moving contact components is followed in described switch mandrel turning course to contact with different fixed contacts and is realized tap, it is characterized in that:
Described some fixed contacts adopt positive-negative voltage-regulation connection principle, and the axially spaced-apart being divided at least two-layer stationary contact head group to install cage body along described fixed contact is distributed on described fixed contact installation cage body, and between fixed contact corresponding between layers, conduction connects.
2. the multistage positive and negative tune cage modle off circuit tap changer of high-voltage great-current as claimed in claim 1, it is characterized in that, every layer of stationary contact head group is divided into groups to be distributed in described fixed contact along the axially spaced-apart of described fixed contact installation cage body by least two row's fixed contacts and is installed on cage body, often arrange between fixed contact outside corresponding in fixed contact grouping and connected by busbar, described busbar is provided with installing hole, for being connected with transformer coil tap.
3. the multistage positive and negative tune cage modle off circuit tap changer of high-voltage great-current as claimed in claim 1 or 2, it is characterized in that, the bracing ring that described fixed contact installation cage body is arranged by some axially spaced-aparts is distributed in even circumferential the some insulation laths be fixedly connected with in some bracing ring outer peripheral edges and with described bracing ring and forms, and the corresponding fixed contact axially spaced-apart in fixed contact grouping of often arranging in every layer of stationary contact head group is arranged on same insulation lath.
4. the multistage positive and negative tune cage modle off circuit tap changer of high-voltage great-current as claimed in claim 1 or 2, is characterized in that, is provided with fixed contact grading ring outside each fixed contact that in every layer of stationary contact head group, outermost one is arranged in fixed contact grouping.
5. the multistage positive and negative tune cage modle off circuit tap changer of high-voltage great-current as claimed in claim 1, is characterized in that, on the switch mandrel of described moving contact component and described this section of mounting flange, axially spaced-apart is provided with at least two grading rings.
6. the multistage positive and negative tune cage modle off circuit tap changer of high-voltage great-current as claimed in claim 1 or 2, it is characterized in that, each moving contact component comprises a moving contact installing frame, adopt rotating shaft hinged and on to be arranged in described moving contact installing frame some, lower clamping piece formula moving contact, some upper clip formula moving contacts adopt juxtaposition to combine, upper slice spring is provided with between each upper clip formula moving contact and upper ledge wall of moving contact installing frame, upper slice spring two side ends is divided into fingertip by the quantity of upper clip formula moving contact, the fingertip of described upper slice spring applies a precompression to respectively described each upper clip formula moving contact, some lower clamping piece formula moving contacts also adopt juxtaposition to combine, a bottom sheet spring is provided with between each lower clamping piece formula moving contact and lower frame wall of moving contact installing frame, the quantity that bottom sheet spring two side ends presses clip type moving contact is divided into fingertip, and the fingertip of described bottom sheet spring applies a precompression to respectively described each lower clamping piece formula moving contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510736251.0A CN105261499A (en) | 2015-11-03 | 2015-11-03 | High-voltage big-current multistage positive and negative adjustment cage-type tap changer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510736251.0A CN105261499A (en) | 2015-11-03 | 2015-11-03 | High-voltage big-current multistage positive and negative adjustment cage-type tap changer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105261499A true CN105261499A (en) | 2016-01-20 |
Family
ID=55101140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510736251.0A Pending CN105261499A (en) | 2015-11-03 | 2015-11-03 | High-voltage big-current multistage positive and negative adjustment cage-type tap changer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105261499A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1933055A (en) * | 2006-09-12 | 2007-03-21 | 武汉泰普变压器开关有限公司 | Non-field cage-shape tap changer for transformer |
| CN101383233A (en) * | 2008-02-26 | 2009-03-11 | 上海华明电力设备制造有限公司 | Moving contact for tap switch |
| CN101477884A (en) * | 2008-09-25 | 2009-07-08 | 秦靓 | Non-exciting shunting switch for positive and negative voltage regulating |
| CN201498343U (en) * | 2009-08-26 | 2010-06-02 | 武汉泰普变压器开关有限公司 | No-excitation cage type tapping switch used in transformer |
| CN201498344U (en) * | 2009-09-08 | 2010-06-02 | 武汉泰普变压器开关有限公司 | No-excitation caged positive and reverse change-over voltage tapping switch used in transformer |
-
2015
- 2015-11-03 CN CN201510736251.0A patent/CN105261499A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1933055A (en) * | 2006-09-12 | 2007-03-21 | 武汉泰普变压器开关有限公司 | Non-field cage-shape tap changer for transformer |
| CN101383233A (en) * | 2008-02-26 | 2009-03-11 | 上海华明电力设备制造有限公司 | Moving contact for tap switch |
| CN101477884A (en) * | 2008-09-25 | 2009-07-08 | 秦靓 | Non-exciting shunting switch for positive and negative voltage regulating |
| CN201498343U (en) * | 2009-08-26 | 2010-06-02 | 武汉泰普变压器开关有限公司 | No-excitation cage type tapping switch used in transformer |
| CN201498344U (en) * | 2009-09-08 | 2010-06-02 | 武汉泰普变压器开关有限公司 | No-excitation caged positive and reverse change-over voltage tapping switch used in transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Li Ping Inventor after: Yang Jianqin Inventor after: Song Wenxin Inventor after: Chai Mengdong Inventor after: Peng Qian Inventor before: Li Ping Inventor before: Zhang Yang Inventor before: Song Wenxin Inventor before: Chai Mengdong |
|
| COR | Change of bibliographic data | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20160524 Address after: 200333 Shanghai city Putuo District No. 977 in the same way Applicant after: Huaming Power Equipment Manufacturing Co., Ltd., Shanghai Applicant after: Shandong Power Equipment Company Applicant after: State Grid Sichuan Electric Power Corporation Address before: 200333 Shanghai city Putuo District No. 977 in the same way Applicant before: Huaming Power Equipment Manufacturing Co., Ltd., Shanghai Applicant before: Shandong Power Equipment Company |
|
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160120 |