CN106469615A - The moving contact component of load ratio bridging switch - Google Patents
The moving contact component of load ratio bridging switch Download PDFInfo
- Publication number
- CN106469615A CN106469615A CN201510494854.4A CN201510494854A CN106469615A CN 106469615 A CN106469615 A CN 106469615A CN 201510494854 A CN201510494854 A CN 201510494854A CN 106469615 A CN106469615 A CN 106469615A
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- China
- Prior art keywords
- contact
- transition
- water conservancy
- conservancy diversion
- main
- 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.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/56—Contact arrangements for providing make-before-break operation, e.g. for on-load tap-changing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F29/00—Variable transformers or inductances not covered by group H01F21/00
- H01F29/02—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings
- H01F29/04—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings having provision for tap-changing without interrupting the load current
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Contacts (AREA)
Abstract
The present invention relates to a kind of moving contact component of load ratio bridging switch, belong to electric switch type technical field.The present invention improves connecting-disconnecting function and the bearing capacity of load ratio bridging switch, substantially increases the reliability of shunting switch work, reduces product manufacture difficulty, decrease cost of goods manufactured.The present invention often mutually mainly includes：Water conservancy diversion contact 1, main contact 2, transition contact 3 and insulating support 4.At least provided with 1, main contact 2 of two water conservancy diversion contacts and a transition contact 3 on insulating support 4, water conservancy diversion contact 1, main contact 2 and transition contact 3 are arranged on the diverse location of insulating support 4, water conservancy diversion contact 1, main contact 2 and transition contact 3 are insulated from each other on insulating support 4 not to be mechanically connected, water conservancy diversion contact 1a is electrically connected with transition contact 3.2b with transition contact 3.1b, transition contact 3.2a with transition contact 3b, transition contact 3.1a with main contact 2b, transition contact 3a with water conservancy diversion contact 1b, main contact 2a, and is symmetrically arranged in the central plane of static contact 5.
Description
Technical field
The present invention provides a kind of moving contact component of transformator great current mixed load ratio bridging switch (hereinafter referred to as shunting switch),
Belong to electric switch type technical field.
Background technology
At present, known simply compound tapping switch movable contact component, no matter single resistor transition or pair resistor transition structure,
In beam conduction, main arc contact doubles as water conservancy diversion contact, causes shunting switch capacity little, and work is unreliable；CN2244245Y high current
Load ratio bridging switch (patent No. 95243512.8), a kind of CN202042348U combined load ratio bridging switch changeover module (patent
Numbers 201120033331.7) and a kind of CN102623202A composite vacuum on-load tap-changer changeover module (patent No.
201110033251.6) moving contact component complex structure, manufacturing cost is high.
Content of the invention
Instant invention overcomes the disadvantages mentioned above of prior art, in normal work, electric current flows through water conservancy diversion contact, and shunting switch is in circuit
In transformation process, water conservancy diversion contact is first deactivated state, realizes the circuit conversion in the case of bringing onto load using main contact and transition contact,
Improve the reliability of product, a kind of compound with respect to ZL95243512.8 large-current tap switch, ZL201110033251.6
The moving contact component structure of formula vacuum on-load operation switch changeover module is simple, reduces product manufacture difficulty and product cost.
The present invention both can be used for single resistor transition shunting switch it is also possible to be used for double resistor transition shunting switchs.
The object of the present invention is achieved like this：Every in shunting switch is mutually provided with guiding circuit, main circuit and transition circuit, main
It is in parallel with guiding circuit that circuit, transition circuit pass through static contact 5；Guiding circuit includes water conservancy diversion contact 1 and output contact, main
Circuit can individually include main contact 2, can also include main contact 2 and vacuum switch or electrical switch, and transition circuit can wrap
Include transition contact 3 and transition resistance R, transition contact 3 and vacuum switch or electrical switch and transition resistance R can also be included；Lead
The water conservancy diversion contact 1 of current circuit, main circuit, transition circuit are arranged on insulating support 4, and main contact 2 passes through vacuum tube or electronics
Switch is electrically connected with water conservancy diversion contact 1, and transition contact 3 passes through vacuum switch or electrical switch and transition resistance R and water conservancy diversion contact 1
Electrical connection, water conservancy diversion contact 1 is electrically connected with output contact；Water conservancy diversion contact 1, main contact 2, transition contact 3 are arranged on insulating support
4 diverse location, this position is corresponding with the position of static contact 5, and mechanical insulated from each other connects on insulating support 4；
In order to ensure that after water conservancy diversion contact 1 disconnection, main contact 2 disconnects, after main contact 2 is connected, water conservancy diversion contact 1 is connected, water conservancy diversion contact 1
Width is less than the width of main contact 2；Insulating support 4 is installed on the drive means, is provided with n static contact 5 in frame, and n >=
2；Drive when driving means are connected to switching circuit instruction action insulating support 4 to move (straight line or circular motion), make water conservancy diversion contact
1st, main contact 2, transition contact 3 and the static contact in frame are contacting and separating by setup program, make circuit without interruption from one
Operating position is transformed into another operating position, realizes the circuit conversion in the case of not power-off bringing onto load, adjusts the defeated of transformator
Go out voltage, control power supply quality, the electricity consumption meeting user requires.
The invention will be further described with reference to the accompanying drawings and examples.
Brief description
Fig. 1 is the moving contact component structural representation front view of compound single resistor transition shunting switch；
Fig. 2 is the A-A sectional view of Fig. 1；
Fig. 3 is another structural representation front view of compound single resistor transition tapping switch movable contact component；
Fig. 4 is the B-B sectional view of Fig. 3；
Fig. 5 is the moving contact component structural representation front view of compound pair of resistor transition shunting switch；
Fig. 6 is the C-C sectional view of Fig. 5；
Fig. 7 is to touch for the dynamic of the present invention in the electrical schematic diagram of the compound single resistor transition shunting switch of Fig. 1, Fig. 3, chain-dotted line
Head assembly；
Fig. 8 is the moving contact component in the electrical schematic diagram of compound pair of resistor transition shunting switch of Fig. 5, chain-dotted line for the present invention.
Specific embodiment
The invention mainly comprises water conservancy diversion contact 1, main contact 2, transition contact 3, insulating support 4.
Embodiment 1：Accompanying drawing 1 be a kind of single resistor transition tapping switch movable contact component, in order to reduce shunting switch longitudinal size and
Material-saving, water conservancy diversion contact 1 is arranged on the different position of insulating support 4 from main contact 2, transition contact 3, this position
Put corresponding with the position of static contact 5；Main contact 2 and transition contact 3 are located at the outside of insulating support 4 adjacent to frame, water conservancy diversion
Contact 1 is located at main contact 2, the inside of transition contact 3；Main contact 2, transition contact 3 are staggeredly arranged；Water conservancy diversion contact 1, master
Contact 2 and transition contact 3 mechanical insulated from each other connect, and see accompanying drawing 2；The width of main contact 2 and transition contact 3 is more than leads
The width of stream contact 1, although the main contact 2 of this technical scheme and transition contact 3 are more than the width of known shunting switch respective contacts
Degree, but the width of static contact is much smaller than known shunting switch corresponding stationary contact head width, because shunting switch is provided with n static contact,
Only one group moving contact, therefore substantially reduces product cost；According to the requirement main contact 2 of transformator, transition contact 3 can be mutual
Change place；Water conservancy diversion contact 1 at least two contact, main contact 2 and transition contact 3 are single-tap header structure；Water conservancy diversion contact 1a with
Water conservancy diversion contact 1b electrically connects, and is symmetrically arranged in the central plane of static contact 5.
Embodiment 2：Accompanying drawing 3 is the moving contact component of another single resistor transition shunting switch, in order to reduce the horizontal chi of shunting switch
Breaking capacity that is very little, expanding shunting switch, water conservancy diversion contact 1 is arranged in a position of insulating support 4 longitudinal direction, main contact 2 He
Transition contact 3 is arranged in another position of insulating support 4 longitudinal direction, this two positions respectively with static contact 5.1, static contact 5.2
Position corresponding；Main contact 2 position on insulating support 4 be transversely provided with transition contact 3；Leading on insulating support 4
Stream contact 1, main contact 2, transition contact 3 mechanical insulated from each other connect, and see accompanying drawing 4；Water conservancy diversion contact 1 and main contact 2
Position can exchange；Water conservancy diversion contact 1 at least two contact；Water conservancy diversion contact 1a is touched with main with water conservancy diversion contact 1b, main contact 2a
Head 2b, transition contact 3a are electrically connected with transition contact 3b, and are symmetrically arranged in corresponding static contact 5.1 and static contact 5.2
Central plane；Main contact 2 and transition contact 3 using double structure of contact terminals so that shunting switch when switching gear can disjunction more
Big electric current.
The circuit theory of above-described embodiment is shown in Fig. 7, for the moving contact component of the present invention in chain-dotted line.
Embodiment 3：Accompanying drawing 5 is the moving contact component of a kind of pair of resistor transition shunting switch, and the shunting switch using this technical scheme is used
Way extensively, can meet multiple requirements of transformator, and shunting switch Breaking capacity of each contact when switching gear is not subject to electrical network tide
The impact in stream direction.It is specially a position, main contact 2 and the transition contact that water conservancy diversion contact 1 is arranged in insulating support 4 longitudinal direction
3 another position being arranged in insulating support 4 longitudinal direction, this two positions position phase with static contact 5.1, static contact 5.2 respectively
Corresponding；Main contact 2 position on insulating support 4 be transversely provided with transition contact 3.1 and transition contact 3.2, see accompanying drawing 6；
Water conservancy diversion contact 1 can exchange with the position of main contact 2；Water conservancy diversion contact 1, the master of guiding circuit are respectively equipped with insulating support 4
Circuit and two transition circuits, water conservancy diversion contact 1, main contact 2, transition contact 3.1, transition contact 3.2 mechanical insulated from each other
Connect；Main contact 2, transition contact 3.1 and transition contact 3.2 are all using double structure of contact terminals；Water conservancy diversion contact 1 at least two
Contact；Water conservancy diversion contact 1a and water conservancy diversion contact 1b, main contact 2a and main contact 2b, transition contact 3.1a and transition contact 3.1b,
Transition contact 3.2a is electrically connected with transition contact 3.2b, and is symmetrically arranged in corresponding static contact 5.1 and static contact 5.2
Heart plane.Circuit theory is shown in Fig. 8, for the moving contact component of the present invention in chain-dotted line.
Insulating support 4 in above-described embodiment is installed on the drive means, and during circuit conversion, driving means drive insulating support 4
To a specified location, water conservancy diversion contact 1 in motor process, main contact 2, transition contact 3 are by setting for motion (straight line or circular motion)
Fixed program is contacted with the static contact of relevant position or separates, thus completing the circuit conversion in the case of not power-off bringing onto load.By
There is potential difference between each static contact, therefore use the short circuit current in transition resistance R limiting circuit transformation process.
The basic principles, principal features and advantages of the present invention have been shown and described above, the present invention is not restricted to the described embodiments,
On the premise of without departing from its general principles, the present invention also has multiple technologies scheme, and these technical schemes fall within the present invention
Claimed scope.
Claims (3)
1. a kind of moving contact component of load ratio bridging switch, the moving contact component of every phase mainly includes water conservancy diversion contact
(1), main contact (2), transition contact (3) and insulating support (4), it is mainly characterized by：Water conservancy diversion contact (1),
Main contact (2), transition contact (3) are separately mounted to the diverse location of insulating support (4), this position and static contact (5)
Position corresponding, and connect in the upper mechanical insulated from each other of insulating support (4)；Contact a is electrically connected with contact b
Connect；The width of water conservancy diversion contact (1) is less than the width of main contact (2).
2. load ratio bridging switch according to claim 1 moving contact component it is characterised in that：Main tactile
Head (2) and transition contact (3) are located at the outside of insulating support (4) adjacent to frame, and water conservancy diversion contact (1) is located at main contact
(2), the inside of transition contact (3)；Main contact (2), transition contact (3) are staggeredly arranged；Main contact (2) and mistake
The width crossing contact (3) is more than the width of water conservancy diversion contact (1)；Main contact (2) and transition contact (3) are single-tap head
Structure.
3. load ratio bridging switch according to claim 1 moving contact component it is characterised in that：Insulation
Main contact (2) that support (4) is longitudinally arranged or water conservancy diversion contact (1) position be transversely provided with transition contact (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510494854.4A CN106469615A (en) | 2015-08-14 | 2015-08-14 | The moving contact component of load ratio bridging switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510494854.4A CN106469615A (en) | 2015-08-14 | 2015-08-14 | The moving contact component of load ratio bridging switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106469615A true CN106469615A (en) | 2017-03-01 |
Family
ID=58213423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510494854.4A Pending CN106469615A (en) | 2015-08-14 | 2015-08-14 | The moving contact component of load ratio bridging switch |
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| Country | Link |
|---|---|
| CN (1) | CN106469615A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4006985A1 (en) * | 1989-03-14 | 1990-09-20 | Elin Energieversorgung | Steeping transformer loud switching device - has screening rings acting as shunt resistances parallel to permanent contacts |
| CN201527912U (en) * | 2009-10-16 | 2010-07-14 | 贵州长征电力设备有限公司 | Fine adjusting contact bridge and tap selector |
| CN203242480U (en) * | 2013-04-24 | 2013-10-16 | 辽宁金立电力电器有限公司 | Transformer on-load capacitance and voltage regulating tap switch |
| CN203733648U (en) * | 2014-02-17 | 2014-07-23 | 浙江腾龙电器有限公司 | High-voltage contact device for on-load capacity-regulating switch |
| CN204834371U (en) * | 2015-08-14 | 2015-12-02 | 北京华天机电研究所有限公司 | On -load tap -changer's moving contact subassembly |
-
2015
- 2015-08-14 CN CN201510494854.4A patent/CN106469615A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4006985A1 (en) * | 1989-03-14 | 1990-09-20 | Elin Energieversorgung | Steeping transformer loud switching device - has screening rings acting as shunt resistances parallel to permanent contacts |
| CN201527912U (en) * | 2009-10-16 | 2010-07-14 | 贵州长征电力设备有限公司 | Fine adjusting contact bridge and tap selector |
| CN203242480U (en) * | 2013-04-24 | 2013-10-16 | 辽宁金立电力电器有限公司 | Transformer on-load capacitance and voltage regulating tap switch |
| CN203733648U (en) * | 2014-02-17 | 2014-07-23 | 浙江腾龙电器有限公司 | High-voltage contact device for on-load capacity-regulating switch |
| CN204834371U (en) * | 2015-08-14 | 2015-12-02 | 北京华天机电研究所有限公司 | On -load tap -changer's moving contact subassembly |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20170301 |