CN208507500U - Capacitance switch for transformer switching mechanism - Google Patents
Capacitance switch for transformer switching mechanism Download PDFInfo
- Publication number
- CN208507500U CN208507500U CN201820958805.0U CN201820958805U CN208507500U CN 208507500 U CN208507500 U CN 208507500U CN 201820958805 U CN201820958805 U CN 201820958805U CN 208507500 U CN208507500 U CN 208507500U
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- China
- Prior art keywords
- contact
- pin shaft
- horizontal segment
- lobe plate
- horizontal
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Abstract
The utility model relates to a kind of capacitance switch for transformer switching mechanisms.The mechanism includes three groups of contacts being arranged successively along straight line, and the movable contact of every group of contact is separately mounted to be capable of on the first support of vertical lifting, second support and third bracket；It is provided with lobe plate below each contact, cam path is provided on lobe plate, each pedestal lower end is placed in the pin shaft in cam path respectively；When lobe plate moves horizontally, each pin shaft can be driven to go up and down by the curvilinear motion of cam path；The cam path successively includes the different multiple horizontal segments of height in the longitudinal direction；When the corresponding pin shaft of each contact is located at first, third or five horizontal segments, contact is in open position, and when the corresponding pin shaft of each contact is located at the second, the 4th or six horizontal segments, contact is in the close position.The utility model can switch over operation to transformer contact, while meet the program requirement of contact opening and closing, and structure is simple, compact, reliable in action.
Description
Technical field
The utility model relates to the operating member of power transformer, specifically a kind of capacitance switch for transformer switching mechanism.
Background technique
In power transformer operation, the actual state according to power load is needed, by capacitance switch to putting into operation
Coil switches over, to adjust the capacity of transformer.In existing structure, capacitance switch will to coil corresponding to two capacity into
Row switching, will usually be arranged three groups of contacts, and one group is work as front contact corresponding to the coil that is currently running, and one group is to be switched
Capacity transfer contact corresponding to the coil of volume change, one group is the transition contact in handoff procedure.Handoff procedure needs will be current
The state of junction closure is switched to the state of capacity transfer junction closure, in order to guarantee that handoff procedure output does not power off, handoff procedure
Act each group contact by following procedure: the first step, before switching, current junction closure, capacity transfer contact and transition contact are disconnected；
Second step when front contact does not disconnect, makes transition junction closure first, capacity transfer contact remains open after switching starts；Third
Step continues handoff procedure, and when front contact disconnects, transition contact is remained closed, and capacity transfer contact remains open；4th step, capacity transfer connect
Point closure, transition contact remains closed, when front contact remains open；5th step, transition contact disconnect, when front contact keeps disconnected
It opens, capacity transfer contact remains closed, and completes handoff procedure.Existing operating mechanism will complete above-mentioned operation program, usually be arranged
More complex mechanism, not only Reliability of Microprocessor is poor, and space hold is big, causes whole device volume big, and installation maintenance is not yet
It is convenient.
Summary of the invention
Technical problem to be solved by the utility model is to provide one kind, and click-through can be docked during transformer capacity transfer
Row handover operation, while meeting the program requirement of contact opening and closing, and structure is simple, compact, the transformer capacity transfer of reliable in action
Switching mechanism.
The capacitance switch for transformer switching mechanism of the utility model include be connected in transformer performance loop along straight
Three groups of contacts that line is arranged successively, from front to back successively are as follows: the first contact, the second contact and third contact；Every group of contact it is dynamic
Contact is separately mounted to be capable of on the first support of vertical lifting, second support and third bracket, and movable contact ascent direction is to close
The direction of splice grafting point, movable contact descent direction are the direction of break；One is provided with below each contact can be horizontal straight
Line mobile lobe plate is provided with a cam path, the first support, second support and third pedestal lower end point on lobe plate
The first pin shaft, the second pin shaft and the third pin shaft that An Zhuan be placed in cam path；It, can be by convex when lobe plate moves horizontally
The curvilinear motion of race drives each pin shaft lifting；The cam path successively includes first horizontal segment, the second water in the longitudinal direction
Flat section, third horizontal segment, the 4th horizontal segment, the 5th horizontal segment and the 6th horizontal segment, wherein first horizontal segment, third horizontal segment
It is lower than the second horizontal segment, the 4th horizontal segment and the 6th horizontal segment with the height of the 5th horizontal segment, passes through inclination between each horizontal segment
Section transition and linkage；When the corresponding pin shaft of each contact is located at first, third or five horizontal segments, contact is in open position, when
When the corresponding pin shaft of each contact is located at the second, the 4th or six horizontal segments, contact is in the close position；
When lobe plate is located at stroke rear end, the first pin shaft is located at first horizontal segment rear end, and the first contact disconnects；Second pin
Axle position is in the 4th horizontal segment front end, the second junction closure；Third pin shaft is located at the 5th horizontal segment middle section, and third contact disconnects；
When lobe plate moves forward, and the first pin shaft reaches the second horizontal segment front end, the second pin shaft is located at the 4th horizontal segment
Rear end, the first junction closure, the second contact remain closed；Third pin shaft is located at the 5th horizontal segment rear end, and third contact keeps disconnected
It opens；
When lobe plate moves forward, and the first pin shaft reaches the second horizontal segment rear end, the second pin shaft enters the 5th horizontal segment
Front end, the first contact remain closed, and the second contact disconnects；Third pin shaft is located at the 6th horizontal segment front end, third junction closure；
When lobe plate moves forward to end of travel, the first pin shaft enters third horizontal segment front end, and the first contact disconnects；
Second pin shaft reaches the 5th horizontal segment rear end, and the second contact remains open；Third pin shaft reaches the 6th horizontal segment rear end, and third connects
Point remains closed.
The lobe plate is horizontally advanced or is retreated by a pair of of the solenoid actuated for being located at its forward and backward side.
Horizontal limiting slot is additionally provided on the lobe plate, limiting slot and a pair of horizontally arranged spacer pin cooperate, phase
To moving horizontally.
First pin shaft, the second pin shaft and third pin shaft pass through bearing respectively and contact with cam path.
The utility model, can be in cam by the shape pin shaft cooperation corresponding with three groups of contacts of the convex race of lobe plate
Axis completes the switching of contact during moving horizontally, and handoff procedure can guarantee to switch by the program of contact open and close
Journey does not power off；Its is small in size, structure is simple, reliable in action, is easily achieved.
Detailed description of the invention
Fig. 1 is the schematic perspective view of the utility model；
Fig. 2 is structural schematic diagram of the utility model embodiment lobe plate in rear extreme position state；
Fig. 3 is the intermediate state structural schematic diagram that the utility model embodiment lobe plate moves forward；
Fig. 4 is the intermediate state structural schematic diagram that the utility model embodiment lobe plate continues to move along；
Fig. 5 is the structural schematic diagram of extreme position state before the utility model embodiment lobe plate.
Specific embodiment
As shown in Figure 1, the capacitance switch for transformer switching mechanism include be connected in transformer performance loop along straight
Three groups of contacts that line is arranged successively, from front to back successively are as follows: the first contact 1, the second contact 2 and third contact 3；Every group of contact
Movable contact is separately mounted to be capable of on the first support 11 of vertical lifting, second support 21 and third bracket 31, and movable contact rises
Direction is the direction of circuit-closing contacts, and movable contact descent direction is the direction of break；An energy is provided with below each contact
The mobile lobe plate 4 of horizontal linear is reached, is provided with a cam path 41, the first support 11, second support 21 on lobe plate
The first pin shaft 12, the second pin shaft 22 and the third pin shaft 32 being placed in respectively with 31 lower end of third bracket in cam path 41；
When lobe plate 4 moves horizontally, each pin shaft can be driven to go up and down by the curvilinear motion of cam path；
As Figure 2-Figure 5, the cam path successively includes first horizontal segment 411, the second horizontal segment in the longitudinal direction
412, third horizontal segment 413, the 4th horizontal segment 414, the 5th horizontal segment 415 and the 6th horizontal segment 416, wherein first horizontal segment
411, the height of third horizontal segment 413 and the 5th horizontal segment 415 is lower than the second horizontal segment 412, the 4th horizontal segment 414 and the 6th water
Flat section 416 passes through tilting section transition and linkage between each horizontal segment；When the corresponding pin shaft of each contact is located at first, third or the 5th
When horizontal segment, contact is in open position, when the corresponding pin shaft of each contact is located at the second, the 4th or six horizontal segments, contact
It is in the close position；
The course of work of the present embodiment is:
When lobe plate is located at stroke rear end, such as Fig. 2, the first pin shaft 12 is located at 411 rear end of first horizontal segment, the first contact
1(corresponds to transition contact) it disconnects；Second pin shaft 22 is located at 414 front end of the 4th horizontal segment, and the second contact 2(correspondence works as front contact) it closes
It closes；Third pin shaft 32 is located at 415 middle section of the 5th horizontal segment, and third contact 3(corresponds to capacity transfer contact) it disconnects；
When lobe plate 4 move forward, such as Fig. 3, the first pin shaft 12 reach the second 412 front end of horizontal segment when, the second pin shaft 22
Positioned at 414 rear end of the 4th horizontal segment, the first contact 1 closure, the second contact 2 is remained closed；It is horizontal that third pin shaft 32 is located at the 5th
415 rear ends of section, third contact 3 remain open；
When lobe plate 4 continues to move along, such as Fig. 4, when the first pin shaft 12 reaches the second 412 rear end of horizontal segment, the second pin
Axis 22 enters 415 front end of the 5th horizontal segment, and the first contact 1 remains closed, and the second contact 2 disconnects；Third pin shaft 32 is located at the 6th
416 front end of horizontal segment, third contact 3 are closed, that is, keep not powering off；
When lobe plate 4 moves forward to end of travel, the first pin shaft 12 enters 413 front end of third horizontal segment, and first connects
Point 1 disconnects；Second pin shaft 22 reaches 415 rear end of the 5th horizontal segment, and the second contact 2 remains open；Third pin shaft 32 reaches the 6th
416 rear end of horizontal segment, third contact 3 remain closed.So far, it completes when front contact to the switching of capacity transfer contact.
Capacity transfer contact is to the switching for working as front contact, with above-mentioned steps on the contrary, lobe plate moves to rear end by stroke front end.
In above structure, lobe plate 4 is horizontally advanced or is retreated by the driving of a pair of of electromagnet 5 for being located at its forward and backward side.Cam
Horizontal limiting slot 42 is additionally provided on plate 4, limiting slot and a pair of horizontally arranged spacer pin 6 cooperate, and relative level is mobile.The
One pin shaft 12, the second pin shaft 22 and third pin shaft 32 are contacted by bearing with cam path 41 respectively.
It is required according to the number of connections of capacity transfer system equipment, multiple lobe plates and corresponding more can also be set simultaneously
Group contact and above-mentioned corresponding structure.
Claims (4)
1. a kind of capacitance switch for transformer switching mechanism includes to be connected to being arranged successively in transformer performance loop along straight line
Three groups of contacts, from front to back successively are as follows: the first contact (1), the second contact (2) and third contact (3)；It is characterized in that: every group
The movable contact of contact is separately mounted to be capable of the first support (11) of vertical lifting, second support (21) and third bracket (31)
On, movable contact ascent direction is the direction of circuit-closing contacts, and movable contact descent direction is the direction of break；The lower section of each contact
It is provided with one and is capable of the mobile lobe plate (4) of horizontal linear, be provided with a cam path (41) on lobe plate, described first
Frame (11), second support (21) and third bracket (31) lower end are placed in the first pin shaft in cam path (41) respectively
(12), the second pin shaft (22) and third pin shaft (32)；It, can be by the curvilinear motion of cam path when lobe plate (4) moves horizontally
Each pin shaft is driven to go up and down；
The cam path (41) successively includes first horizontal segment (411), the second horizontal segment (412), third water in the longitudinal direction
Flat section (413), the 4th horizontal segment (414), the 5th horizontal segment (415) and the 6th horizontal segment (416), wherein first horizontal segment
(411), the height of third horizontal segment (413) and the 5th horizontal segment (415) is lower than the second horizontal segment (412), the 4th horizontal segment
(414) and the 6th horizontal segment (416), pass through tilting section transition and linkage between each horizontal segment；When the corresponding pin shaft of each contact is located at
The first, third or when five horizontal segments, contact is in open position, when the corresponding pin shaft of each contact is located at the second, the 4th or the
When six horizontal segments, contact is in the close position；
When lobe plate is located at stroke rear end, the first pin shaft (12) is located at first horizontal segment (411) rear end, and the first contact (1) is disconnected
It opens；Second pin shaft (22) is located at the 4th horizontal segment (414) front end, the second contact (2) closure；Third pin shaft (32) is located at the 5th water
Flat section (415) middle section, third contact (3) disconnect；
When lobe plate (4) move forward, and the first pin shaft (12) reaches the second horizontal segment (412) front end, the second pin shaft (22) position
In the 4th horizontal segment (414) rear end, the first contact (1) closure, the second contact (2) is remained closed；Third pin shaft 32 is located at the 5th
415 rear end of horizontal segment, third contact 3 remain open；
When lobe plate (4) continues to move along, and the first pin shaft (12) reaches the second horizontal segment (412) rear end, the second pin shaft
(22) enter the 5th horizontal segment (415) front end, the first contact (1) remains closed, and the second contact (2) disconnects；Third pin shaft (32)
Positioned at the 6th horizontal segment (416) front end, third contact (3) closure；
When lobe plate (4) moves forward to end of travel, the first pin shaft (12) enter third horizontal segment (413) front end, first
Contact (1) disconnects；Second pin shaft (22) reaches the 5th horizontal segment (415) rear end, and the second contact (2) remains open；Third pin shaft
(32) the 6th horizontal segment (416) rear end is reached, third contact (3) remains closed.
2. capacitance switch for transformer switching mechanism according to claim 1, it is characterized in that: lobe plate (4) by before being located at it,
A pair of of electromagnet (5) driving at rear is horizontally advanced or is retreated.
3. capacitance switch for transformer switching mechanism according to claim 1, it is characterized in that: being additionally provided on lobe plate (4)
Horizontal limiting slot (42), limiting slot and a pair of horizontally arranged spacer pin (6) cooperate, and relative level is mobile.
4. capacitance switch for transformer switching mechanism according to claim 1, it is characterized in that: the first pin shaft (12), the second pin
Axis (22) and third pin shaft (32) are contacted by bearing with cam path (41) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820958805.0U CN208507500U (en) | 2018-06-21 | 2018-06-21 | Capacitance switch for transformer switching mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820958805.0U CN208507500U (en) | 2018-06-21 | 2018-06-21 | Capacitance switch for transformer switching mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208507500U true CN208507500U (en) | 2019-02-15 |
Family
ID=65287130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820958805.0U Expired - Fee Related CN208507500U (en) | 2018-06-21 | 2018-06-21 | Capacitance switch for transformer switching mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208507500U (en) |
-
2018
- 2018-06-21 CN CN201820958805.0U patent/CN208507500U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190215 |