CN208706472U - Transformer capacity and pressure regulating switching mechanism - Google Patents
Transformer capacity and pressure regulating switching mechanism Download PDFInfo
- Publication number
- CN208706472U CN208706472U CN201820959419.3U CN201820959419U CN208706472U CN 208706472 U CN208706472 U CN 208706472U CN 201820959419 U CN201820959419 U CN 201820959419U CN 208706472 U CN208706472 U CN 208706472U
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- China
- Prior art keywords
- contact
- pin shaft
- middle section
- lobe plate
- leading portion
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Abstract
The utility model relates to a kind of transformer capacity and pressure regulating 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；Two cam paths include horizontal leading portion, middle section and back segment, and height is different, and when pin shaft is located at higher section, contact is in the close position；When pin shaft is located at lower section, contact is in open 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 transformer capacity and pressure regulating switching mechanism.
Background technique
In power transformer operation, the actual state according to power load is needed, by capacity transfer or tap changer to investment
The coil of operation switches over, to adjust the capacity and voltage of transformer.In existing structure, capacitance switch will to two capacity or
Coil corresponding to voltage switches over, and to be usually arranged three groups of contacts, and one group is current corresponding to the coil that is currently running
Contact, one group is adjustment contact corresponding to be switched coil, and one group is the transition contact in handoff procedure.Handoff procedure needs
The state of current junction closure is switched to the state of adjustment junction closure, in order to guarantee that handoff procedure output does not power off,
Handoff procedure will be such that each group contact acts by following procedure: the first step, and before switching, current junction closure adjusts contact and transition
Contact disconnects；Second step after switching starts, when front contact does not disconnect, makes transition junction closure first, adjustment contact is kept
It disconnects；Third step continues handoff procedure, and when front contact disconnects, transition contact is remained closed, and adjustment contact remains open；4th
Step adjusts junction closure, and transition contact remains closed, when front contact remains open；5th step, transition contact are disconnected, are currently connect
Point remains open, and adjustment contact remains closed, and completes handoff procedure.Existing operating mechanism will complete above-mentioned operation program, lead to
More complex mechanism is often set, and not only Reliability of Microprocessor is poor, and space hold is big, causes whole device volume big, installs
Maintenance is also inconvenient.
Summary of the invention
Technical problem to be solved by the utility model is to provide one kind docking to click through during transformer adjusts
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
Pressure regulation switching mechanism.
The transformer capacity and pressure regulating 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 two cam paths, i.e. the first cam path and the second cam path on lobe plate；First support lower end
First pin shaft of installation is placed in the first cam path；The second pin shaft and third pin shaft peace of second support and the installation of third bracket
It sets in the second cam path；When lobe plate moves horizontally, each pin can be driven by the curvilinear motion of the first and second cam paths
Axis lifting；First cam path includes the first horizontal leading portion, the first middle section and the first back segment, the first leading portion and the first back segment
Height is lower than the first middle section, passes through tilting section transition between each section；When the first pin shaft is located at the first leading portion or the first back segment, connect
Point is in open position, and when the first pin shaft is located at the first middle section, contact is in the close position；Second cam path includes water
Flat the second leading portion, the second middle section and the second back segment, the second leading portion and the second back segment height are higher than the second middle section, lead between each section
Cross tilting section transition；When the second pin shaft or third pin shaft are located at the second leading portion or the second back segment, contact is in the close position, when
When second pin shaft or third pin shaft are located at the second middle section, contact is in open position；
When lobe plate is located at stroke rear end, the first pin shaft is located at the first leading portion rear end, and the first contact disconnects；Second pin shaft
Positioned at the second leading portion front end, the second junction closure；Third pin shaft is located in the middle part of the second middle section, and third contact disconnects；
When lobe plate moves forward, and the first pin shaft reaches the first middle section front end, the second pin shaft is located at the second leading portion rear end,
First junction closure, the second contact remain closed；Third pin shaft is located at the second middle section rear end, and third contact remains open；
When lobe plate moves forward, and the first pin shaft reaches the first middle section rear end, the second pin shaft enters the second middle section front end,
First contact remains closed, and the second contact disconnects；Third pin shaft is located at the second back segment front end, third junction closure；
When lobe plate moves forward to end of travel, the first pin shaft enters the first back segment, and the first contact disconnects；Second pin
Axis reaches in the middle part of the second middle section, and the second contact remains open；Third pin shaft reaches the second back segment rear end, and the holding of third contact is closed
It closes.
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 structural schematic diagram of the utility model embodiment lobe plate in rear extreme position state；
Fig. 2 is the intermediate state structural schematic diagram that the utility model embodiment lobe plate moves forward；
Fig. 3 is the intermediate state structural schematic diagram that the utility model embodiment lobe plate continues to move along；
Fig. 4 is the structural schematic diagram of extreme position state before the utility model embodiment lobe plate.
Specific embodiment
As shown, the capacitance switch for transformer switching mechanism include be connected in transformer performance loop along straight line
Three groups of contacts being 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 it is dynamic
Contact is separately mounted to be capable of on the first support 11 of vertical lifting, second support 21 and third bracket 31, movable contact rising side
To the direction for circuit-closing contacts, movable contact descent direction is the direction of break；One is provided with below each contact can
Horizontal linear mobile lobe plate 4 is provided with two cam paths, i.e. the first cam path 41 and the second cam path 42 on lobe plate；
11 lower end of first support is equipped with the first pin shaft 12 being placed in the first cam path, second support 21 and third bracket 31
Lower end is separately installed with the second pin shaft 22 and third pin shaft 32 being placed in the second cam path 42；When lobe plate 4 moves horizontally,
Each pin shaft can be driven to go up and down by the curvilinear motion of cam path；
First cam path 41 includes the first horizontal leading portion 411, the first middle section 412 and the first back segment 413, before first
Section 411 and 413 height of the first back segment are lower than the first middle section 412, pass through tilting section transition between each section；When the first pin shaft 12 is located at
When the first leading portion 411 or the first back segment 413, contact is in open position, when the first pin shaft 12 is located at the first middle section 412, connects
Point is in the close position；Second cam path 42 includes the second horizontal leading portion 421, the second middle section 422 and the second back segment
423, the second leading portion 421 and 423 height of the second back segment are higher than the second middle section 422, pass through tilting section transition between each section；When second
When pin shaft 22 or third pin shaft 32 are located at the second leading portion 421 or the second back segment 423, contact is in the close position, when the second pin shaft
22 or third pin shaft 32 when being located at the second middle section 422, contact is in open position；
When lobe plate 4 is located at stroke rear end, the first pin shaft 12 is located at 411 rear end of the first leading portion, and the first contact disconnects；The
Two pin shafts 22 are located at 421 front end of the second leading portion, the second junction closure；Third pin shaft 32 is located at 422 middle part of the second middle section, and third connects
Point disconnects；
When lobe plate 4 moves forward, and the first pin shaft 12 reaches the first 412 front end of middle section, the second pin shaft 22 is located at second
421 rear end of leading portion, the first junction closure, the second contact remain closed；Third pin shaft 32 is located at 422 rear end of the second middle section, third
Contact remains open；
When lobe plate 4 moves forward, and the first pin shaft 12 reaches the first 412 rear end of middle section, the second pin shaft 22 enters second
422 front end of middle section, the first contact remain closed, and the second contact disconnects；Third pin shaft 32 is located at 423 front end of the second back segment, third
Junction closure；
When lobe plate 4 moves forward to end of travel, the first pin shaft 12 enters the first back segment 413, and the first contact disconnects；
Second pin, 22 axis reaches 422 middle part of the second middle section, and the second contact remains open；Third pin shaft 32 reaches 423 rear end of the second back segment,
Third contact remains closed.
The course of work of the present embodiment is:
When lobe plate is located at stroke rear end, such as Fig. 1, the first pin shaft 12 is located at 411 rear end of the first leading portion, the first contact 1
(corresponding transition contact) disconnects；Second pin shaft 22 is located at 421 front end of the second leading portion, and the second contact 2(correspondence works as front contact) closure；
Third pin shaft 32 is located at 422 middle part of the second middle section, the corresponding adjustment contact of third contact 3() it disconnects；
When lobe plate 4 move forward, such as Fig. 2, the first pin shaft 12 reach the first 412 front end of middle section when, the second pin shaft 22
In 421 rear end of the second leading portion, the first contact 1 closure, the second contact 2 is remained closed；After third pin shaft 32 is located at the second middle section 422
End, third contact 3 remain open；
When lobe plate 4 continues to move along, such as Fig. 3, when the first pin shaft 12 reaches the first 412 rear end of middle section, the second pin shaft
22 enter 422 front end of the second middle section, and the first contact 1 remains closed, and the second contact 2 disconnects；Third pin shaft 32 is located at the second back segment
423 front ends, 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 the first back segment 413, and the first contact 1 is disconnected
It opens；Second pin, 22 axis reaches 422 middle part of the second middle section, and the second contact remains open；After third pin shaft 32 reaches the second back segment 423
End, third contact remain closed.So far, it completes when front contact to the switching for adjusting contact.
Contact is adjusted 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
It is also set up on plate 4 there are two horizontal limiting slot 42, limiting slot and a pair of horizontally arranged spacer pin 6 cooperate, and relative level moves
It is dynamic.First pin shaft 12, the second pin shaft 22 and third pin shaft 32 are contacted by bearing with cam path 41 respectively.
According to capacity transfer, the requirement of the number of connections of voltage-regulating system equipment, multiple lobe plates and right therewith can also be set simultaneously
The multiple groups contact answered and above-mentioned corresponding structure.
Claims (4)
1. a kind of transformer capacity and pressure regulating 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 the lobe plate (4) for capableing of horizontal linear movement, is provided with two cam paths, i.e. the first cam path on lobe plate
(41) and the second cam path (42)；First support (11) lower end is equipped with the first pin shaft being placed in the first cam path
(12), second support (21) and third bracket (31) lower end are separately installed with the second pin shaft being placed in the second cam path (42)
(22) and third pin shaft (32)；When lobe plate (4) moves horizontally, each pin shaft liter can be driven by the curvilinear motion of cam path
Drop；
First cam path (41) includes horizontal the first leading portion (411), the first middle section (412) and the first back segment (413), and
One leading portion (411) and the first back segment (413) are highly lower than the first middle section (412), pass through tilting section transition between each section；When first
When pin shaft (12) is located at the first leading portion (411) or the first back segment (413), contact is in open position, when the first pin shaft (12) position
When the first middle section (412), contact is in the close position；Second cam path (42) include horizontal the second leading portion (421),
Second middle section (422) and the second back segment (423), the second leading portion (421) and the second back segment (423) are highly higher than the second middle section
(422), pass through tilting section transition between each section；When the second pin shaft (22) or third pin shaft (32) be located at the second leading portion (421) or
When the second back segment (423), contact is in the close position, when the second pin shaft (22) or third pin shaft (32) are located at the second middle section
(422) when, contact is in open position；
When lobe plate (4) is located at stroke rear end, the first pin shaft (12) is located at the first leading portion (411) rear end, and the first contact disconnects；
Second pin shaft (22) is located at the second leading portion (421) front end, the second junction closure；Third pin shaft (32) is located at the second middle section (422)
Middle part, third contact disconnect；
When lobe plate (4) move forward, and the first pin shaft (12) reaches the first middle section (412) front end, the second pin shaft (22) is located at
Second leading portion (421) rear end, the first junction closure, the second contact remain closed；Third pin shaft (32) is located at the second middle section (422)
Rear end, third contact remain open；
When lobe plate (4) move forward, and the first pin shaft (12) reaches the first middle section (412) rear end, the second pin shaft (22) enters
Second middle section (422) front end, the first contact remain closed, and the second contact disconnects；Third pin shaft (32) is located at the second back segment (423)
Front end, third junction closure；
When lobe plate (4) moves forward to end of travel, the first pin shaft (12) enters the first back segment (413), and the first contact is disconnected
It opens；Second pin shaft (22) reaches in the middle part of the second middle section (422), and the second contact remains open；After third pin shaft (32) reaches second
Section (423) rear end, third contact remain closed.
2. transformer capacity and pressure regulating 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. transformer capacity and pressure regulating switching mechanism according to claim 1, it is characterized in that: being additionally provided on lobe plate (4)
Horizontal limiting slot (43), limiting slot and a pair of horizontally arranged spacer pin (6) cooperate, and relative level is mobile.
4. transformer capacity and pressure regulating 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 respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820959419.3U CN208706472U (en) | 2018-06-21 | 2018-06-21 | Transformer capacity and pressure regulating switching mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820959419.3U CN208706472U (en) | 2018-06-21 | 2018-06-21 | Transformer capacity and pressure regulating switching mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208706472U true CN208706472U (en) | 2019-04-05 |
Family
ID=65936727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820959419.3U Expired - Fee Related CN208706472U (en) | 2018-06-21 | 2018-06-21 | Transformer capacity and pressure regulating switching mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208706472U (en) |
-
2018
- 2018-06-21 CN CN201820959419.3U patent/CN208706472U/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: 20190405 |