CN111551765B - On-load switch of current transformer - Google Patents
On-load switch of current transformer Download PDFInfo
- Publication number
- CN111551765B CN111551765B CN202010561553.XA CN202010561553A CN111551765B CN 111551765 B CN111551765 B CN 111551765B CN 202010561553 A CN202010561553 A CN 202010561553A CN 111551765 B CN111551765 B CN 111551765B
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- rod
- shaped
- fixedly connected
- groove
- load switch
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
- G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
- G01R15/18—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
- G01R1/0416—Connectors, terminals
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- 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
- H01H9/02—Bases, casings, or covers
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention discloses a current transformer on-load switch, which comprises a bottom plate and is characterized in that: the bottom plate is provided with a set of round holes, the telescopic link of upside center fixed connection cylinder of bottom plate, the downside of cylinder fixed connection disc, the upside fixed connection conical body of disc, the conical body is provided with a set of recess along circumferencial direction evenly distributed, the hollow round bar of telescopic link middle part fixed connection of cylinder, a set of U-shaped piece along circumferencial direction evenly distributed of hollow round bar fixed connection, the one end of a set of square bar along circumferencial direction evenly distributed of downside fixed connection of disc, every the U-shaped piece articulates swing mechanism respectively. The invention relates to the field of switch equipment, in particular to an on-load switch of a current transformer. The invention relates to a current transformer on-load switch, which is beneficial to realizing the current transformer on-load switch.
Description
Technical Field
The invention relates to the field of switch equipment, in particular to a current transformer on-load switch.
Background
The current transformer is an instrument for measuring by converting a large primary side current into a small secondary side current according to the electromagnetic induction principle. The current transformer is composed of a closed iron core and a winding. The primary side winding of the transformer has few turns and is connected in a circuit of the current to be measured. Therefore, all current of a line always flows through the current transformer, the number of turns of the secondary side winding is large, the secondary side winding is connected in series in the measuring instrument and the protection loop, and the secondary side loop of the current transformer is always closed when the current transformer works, so that the impedance of the series coil of the measuring instrument and the protection loop is very small, and the working state of the current transformer is close to a short circuit. In order to measure the current conveniently, therefore, a current transformer on-load switch is needed.
Disclosure of Invention
The technical problem to be solved by the invention is to provide the on-load switch of the current transformer, which is beneficial to realizing the on-load switch of the current transformer.
The invention adopts the following technical scheme to realize the purpose of the invention:
the utility model provides a current transformer on-load switch, includes the bottom plate, characterized by: the bottom plate is provided with a set of round holes, the telescopic link of upside center fixed connection cylinder of bottom plate, the downside of cylinder fixed connection disc, the upside fixed connection conical body of disc, the conical body is provided with a set of recess along circumferencial direction evenly distributed, the hollow round bar of telescopic link middle part fixed connection of cylinder, a set of U-shaped piece along circumferencial direction evenly distributed of hollow round bar fixed connection, the one end of a set of square bar along circumferencial direction evenly distributed of downside fixed connection of disc, every the U-shaped piece articulates swing mechanism respectively.
As a further limitation of the technical scheme, the swing mechanism includes a group of first connecting rods, one end of each first connecting rod is hinged in a groove of each U-shaped block, the other end of each first connecting rod is hinged with one end of each second connecting rod, the other end of each second connecting rod is hinged with the other end of each square rod, the upper side of each second connecting rod is fixedly connected with an arc plate, each arc plate is matched with the corresponding groove, the upper side of each arc plate is fixedly connected with a square plate, each square plate is provided with a straight groove, a screw is arranged in each straight groove, one end of each screw is movably connected with one end of the corresponding square plate, each screw is movably connected with the other end of the corresponding square plate, and the other end of each screw is fixedly connected with a handle.
As a further limitation of the technical scheme, a U-shaped slider is respectively arranged in each straight groove, each screw rod is respectively in threaded connection with the corresponding U-shaped slider, the lower side of each load switch is respectively and fixedly connected with a symmetrical T-shaped rod, a short rod of the corresponding T-shaped rod is respectively hinged in a groove of each U-shaped slider, a three U-shaped block is respectively and fixedly connected to the upper side of each square plate, and a symmetrical chute rod is respectively hinged in a groove of each three U-shaped block.
As a further limitation of the technical scheme, short rods of the corresponding T-shaped rods are respectively arranged in the sliding grooves of each symmetrical sliding groove rod, and one side of each symmetrical sliding groove rod is fixedly connected with a U-shaped block II.
As a further limitation of the technical scheme, the upper side of each square plate is fixedly connected with a fixing plate, one end of each fixing plate is fixedly connected with an arc-shaped groove rod, and a round rod is arranged in each arc-shaped groove rod.
As a further limitation of the technical scheme, two short rods of each U-shaped block two are respectively and fixedly connected with one end of the corresponding round rod, the other end of each round rod is respectively and fixedly connected with a handle one, and each handle one is respectively corresponding to the arc-shaped grooved rod threaded connection jackscrew.
Compared with the prior art, the invention has the advantages and positive effects that:
(1) The device is provided with the arc-shaped plate, so that the swing of the arc-shaped plate can be realized, the arc-shaped plate is effectively matched with the conical body 1, and the on-load switch is prevented from being wetted and damaged;
(2) The device is provided with the screw rod, the movement of the on-load switch can be realized by rotating the handle II, the position of the on-load switch is effectively adjusted, and the current is convenient to measure;
(3) The device is provided with a sliding chute rod, the swing of the on-load switch can be realized by moving the first handle, and the angle of the on-load switch can be effectively and conveniently adjusted.
The invention relates to a current transformer on-load switch, which is beneficial to realizing the current transformer on-load switch.
Drawings
FIG. 1 is a first perspective view of the present invention;
FIG. 2 is a schematic perspective view of the present invention;
FIG. 3 is a third schematic partial perspective view of the present invention;
FIG. 4 is a schematic diagram of a partial perspective structure of the present invention;
FIG. 5 is a schematic diagram of a partial perspective structure according to the present invention;
FIG. 6 is a schematic diagram of a partial perspective structure of the present invention;
FIG. 7 is a schematic diagram of a partial perspective structure according to the present invention;
fig. 8 is a partial perspective view illustrating an eighth embodiment of the present invention.
In the figure: 1. the device comprises a conical body, 2, a disk, 3, a cylinder, 4, a hollow round rod, 5, a bottom plate, 6, a round hole, 7, an arc-shaped plate, 8, a groove, 9, a first connecting rod, 10, a square rod, 11, a U-shaped block, 12, a load switch, 13, a second connecting rod, 14, a sliding groove rod, 15, a second U-shaped block, 16, a T-shaped rod, 17, a third U-shaped block, 18, a square plate, 19, a fixing plate, 20, an arc-shaped groove rod, 21, a top wire, 22, a first handle, 23, a round rod, 24, a straight groove, 25, a U-shaped sliding block, 26, a screw rod, 27 and a second handle.
Detailed Description
One embodiment of the present invention will be described in detail below with reference to the accompanying drawings, but it should be understood that the scope of the invention is not limited to the embodiment.
As shown in fig. 1-8, the present invention includes a bottom plate 5, the bottom plate 5 is provided with a set of circular holes 6, the center of the upper side of the bottom plate 5 is fixedly connected with a telescopic rod of an air cylinder 3, the air cylinder 3 is fixedly connected with the lower side of a disc 2, the upper side of the disc 2 is fixedly connected with a conical body 1, the conical body 1 is provided with a set of grooves 8 uniformly distributed along the circumferential direction, the middle part of the telescopic rod of the air cylinder 3 is fixedly connected with a hollow round rod 4, the hollow round rod 4 is fixedly connected with a set of U-shaped blocks 11 uniformly distributed along the circumferential direction, the lower side of the disc 2 is fixedly connected with one ends of a set of square rods 10 uniformly distributed along the circumferential direction, and each U-shaped block 11 is hinged with a swing mechanism.
The swing mechanism comprises a group of first connecting rods 9, one end of each corresponding first connecting rod 9 is hinged in a groove of each U-shaped block 11, the other end of each first connecting rod 9 is hinged with one end of each corresponding second connecting rod 13, the other end of each second connecting rod 13 is hinged with the other end of the corresponding square rod 10, the upper side of each second connecting rod 13 is fixedly connected with an arc-shaped plate 7, each arc-shaped plate 7 is matched with the corresponding groove 8, the upper side of each arc-shaped plate 7 is fixedly connected with a square plate 18, each square plate 18 is provided with a straight groove 24, a screw 26 is arranged in each straight groove 24, one end of each screw 26 is movably connected with one end of the corresponding square plate 24, each screw 26 is movably connected with the other end of the corresponding square plate 24, and the other end of each screw 26 is fixedly connected with a second handle 27.
A U-shaped slider 25 is arranged in each straight groove 24, each screw 26 is in threaded connection with the corresponding U-shaped slider 25, the lower side of each load switch 12 is fixedly connected with a symmetrical T-shaped rod 16, a short rod of the corresponding T-shaped rod 26 is hinged in a groove of each U-shaped slider 25, a U-shaped block III 17 is fixedly connected with the upper side of each square plate 24, and a symmetrical sliding groove rod 14 is hinged in a groove of each U-shaped block III 17.
Short rods of the T-shaped rods 26 are correspondingly arranged in the sliding grooves of the symmetrical sliding groove rods 14, and one side of each symmetrical sliding groove rod 14 is fixedly connected with a second U-shaped block 15.
The upper side of each square plate 18 is fixedly connected with a fixing plate 19, one end of each fixing plate 19 is fixedly connected with an arc-shaped groove rod 20, and a round rod 23 is arranged in each arc-shaped groove rod 20.
Two short rods of each U-shaped block II 15 are fixedly connected with one end of the corresponding round rod 23, the other end of each round rod 23 is fixedly connected with a handle I22, and each handle I22 corresponds to the arc-shaped groove rod 20 and is in threaded connection with the jackscrew 21.
The model number of the cylinder 3 is SC100X25.
The screw 26 has a self-locking function.
The working process of the invention is as follows: the device is fixed on a workbench through a bolt penetrating through a round hole 6, when current needs to be measured, an air cylinder 3 is opened, the air cylinder 3 drives a disc 2 to move upwards, the disc 2 drives a conical body 1 and a square rod 10 to move upwards, the square rod 10 drives a connecting rod two 13 to swing, the connecting rod two 13 drives a connecting rod one 9 and an arc-shaped plate 7 to swing, the arc-shaped plate 7 drives a square plate 18 to swing, the square plate 18 drives a screw 26 and other parts to swing, when the arc-shaped plate 7 swings to be completely opened, the air cylinder 3 is closed, a handle two 27 is rotated, the handle two 27 drives the screw 26 to rotate, the screw 26 drives a U-shaped slide block 25 to move along a straight groove 24, the U-shaped slide block 25 drives a T-shaped rod 16 to swing, the T-shaped rod 16 drives an on-load switch 12 to swing, and after the position of the on-load switch 12 is adjusted, and stopping rotating the second handle 27, when the angle of the on-load switch 12 is adjusted, unscrewing the jackscrew 21, moving the first handle 22, driving the round rod 23 to move along the sliding groove of the arc-shaped groove rod 20 by the first handle 22, driving the U-shaped block 15 to swing by the round rod 23, driving the sliding groove rod 14 to swing by the U-shaped block 15, driving the T-shaped rod 16 to swing along the sliding groove of the sliding groove rod 14 by the sliding groove rod 14, driving the on-load switch 12 to swing by the T-shaped rod 16, stopping moving the first handle 22 when the on-load switch 12 swings to a proper position, screwing the jackscrew 21, connecting two poles of the electric wire into the on-load switch 12, starting to measure the current, taking down the two poles of the electric wire after the measurement, opening the cylinder 3, resetting the arc-shaped plate 7, and closing the cylinder 3 after the resetting.
The above disclosure is only one specific embodiment of the present invention, however, the present invention is not limited thereto, and any variations that can be considered by those skilled in the art are within the scope of the present invention.
Claims (2)
1. The utility model provides a current transformer on-load switch, includes bottom plate (5), characterized by: the bottom plate (5) is provided with a group of round holes (6), the center of the upper side of the bottom plate (5) is fixedly connected with a telescopic rod of a cylinder (3), the cylinder (3) is fixedly connected with the lower side of a disc (2), the upper side of the disc (2) is fixedly connected with a conical body (1), the conical body (1) is inverted, the conical body (1) is provided with a group of grooves (8) which are uniformly distributed along the circumferential direction, the middle part of the telescopic rod of the cylinder (3) is fixedly connected with a hollow round rod (4), the hollow round rod (4) is fixedly connected with a group of U-shaped blocks (11) which are uniformly distributed along the circumferential direction, the lower side of the disc (2) is fixedly connected with one ends of a group of square rods (10) which are uniformly distributed along the circumferential direction, each U-shaped block (11) is respectively hinged with a swing mechanism, the swing mechanism comprises a group of first connecting rods (9), one end of each first connecting rod (9) is respectively hinged in the groove of each U-shaped block (11), the other end of each first connecting rod (9) is respectively hinged with one end of a second connecting rod (13), the other end of each connecting rod (13) is respectively hinged with one end of each square rod (7), the other end of each square rod (7) is respectively connected with the corresponding to the arc-shaped plate (7), and the upper side of each square rod (7) is respectively connected with the arc-shaped plate (7), each square plate (18) is provided with a straight groove (24) respectively, each straight groove (24) is internally provided with a screw (26) respectively, each straight groove (24) is internally provided with a U-shaped slider (25) respectively, each screw (26) is in threaded connection with the corresponding U-shaped slider (25) respectively, the lower side of each load switch (12) is fixedly connected with a symmetrical T-shaped rod (16) respectively, a groove of each U-shaped slider (25) is hinged with a corresponding short rod of the T-shaped rod (16) respectively, the upper side of each square plate (18) is fixedly connected with a third U-shaped block (17) respectively, a groove of each third U-shaped block (17) is hinged with a symmetrical sliding groove rod (14) respectively, a sliding groove of each symmetrical sliding groove rod (14) is internally provided with a corresponding short rod of the T-shaped rod (16) respectively, the upper side of each square plate (18) is fixedly connected with a fixing plate (19) respectively, one end of each fixing plate (19) is fixedly connected with an arc-shaped groove rod (20), each inner arc-shaped groove rod (20) is provided with a corresponding fixing rod (23), one side of each U-shaped block (23) is connected with a corresponding short rod (15) respectively, and one side of each handle (23) is connected with a corresponding sliding groove rod (15) respectively, and each first handle (22) is in threaded connection with a jackscrew (21) corresponding to the arc-shaped grooved rod (20).
2. The current transformer on-load switch of claim 1, wherein: one end of each screw rod (26) is movably connected with one end of the corresponding square plate (18), each screw rod (26) is movably connected with the other end of the corresponding square plate (18), and the other end of each screw rod (26) is fixedly connected with a second handle (27).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010561553.XA CN111551765B (en) | 2020-06-18 | 2020-06-18 | On-load switch of current transformer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010561553.XA CN111551765B (en) | 2020-06-18 | 2020-06-18 | On-load switch of current transformer |
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| Publication Number | Publication Date |
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| CN111551765A CN111551765A (en) | 2020-08-18 |
| CN111551765B true CN111551765B (en) | 2023-01-31 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN209675735U (en) * | 2019-05-25 | 2019-11-22 | 上海舟鑫电气有限公司 | A kind of waterproof cabinet for load ratio bridging switch |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH09257838A (en) * | 1996-03-18 | 1997-10-03 | Mitsubishi Electric Corp | Photocurrent sensor for on-load tap changer |
| CN105680192B (en) * | 2016-04-06 | 2018-06-22 | 盐城工学院 | A kind of switch cabinet instrument room rotary type wire connection terminal mounting structure |
| CN206819935U (en) * | 2017-05-27 | 2017-12-29 | 国网甘肃省电力公司检修公司 | A kind of transformer Buchholz relay rain cover |
| CN208291810U (en) * | 2018-04-13 | 2018-12-28 | 王亚军 | A kind of medical inspection classified storage equipment |
| CN209683289U (en) * | 2018-12-19 | 2019-11-26 | 裴海森 | A kind of mathematics multifunctional plotter |
| CN209183449U (en) * | 2018-12-29 | 2019-07-30 | 上海众杰电力科技有限公司 | A kind of vacuum circuit breaker |
| CN109872915A (en) * | 2019-04-09 | 2019-06-11 | 国家电网有限公司 | A kind of disconnecting switch rain cover |
| CN110319402A (en) * | 2019-07-09 | 2019-10-11 | 江苏艺轩园林景观工程有限公司 | A kind of Landscape Lighting integrated LED lamp |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN209675735U (en) * | 2019-05-25 | 2019-11-22 | 上海舟鑫电气有限公司 | A kind of waterproof cabinet for load ratio bridging switch |
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