CN214797000U - Current transformer for measuring high-voltage current - Google Patents
Current transformer for measuring high-voltage current Download PDFInfo
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- CN214797000U CN214797000U CN202121229131.9U CN202121229131U CN214797000U CN 214797000 U CN214797000 U CN 214797000U CN 202121229131 U CN202121229131 U CN 202121229131U CN 214797000 U CN214797000 U CN 214797000U
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- 238000004804 winding Methods 0.000 claims abstract description 51
- 238000005259 measurement Methods 0.000 claims abstract description 20
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000009434 installation Methods 0.000 claims description 4
- 206010020649 Hyperkeratosis Diseases 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 2
- 230000032683 aging Effects 0.000 abstract description 2
- 230000008859 change Effects 0.000 description 7
- 230000008901 benefit Effects 0.000 description 6
- 230000005674 electromagnetic induction Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a current transformer for high tension current measurement, including box and contact piece, the positive movable mounting of box has the chamber door, and the inside of chamber door has been seted up through the groove, and the inside fixed mounting of box intermediate part has the spacing ring, and the equal fixed mounting in top and the bottom of box inner chamber has fixed ring cover, and the inside fixed cup joint of fixed ring cover has iron core ring post, and one side of iron core ring post has all been connected with first wiring ring around having first winding, the both ends of first winding. Through the earthing pole, because the device probably is used for measuring high-pressure heavy current when using, then equipment probably becomes ageing because service environment and service life's restriction, and then the condition of electric leakage can appear, and the electric leakage of high-pressure heavy current can puncture inside measuring winding and gauge etc. to lead to the user probably to take place to electrocute, in order to prevent the appearance of this phenomenon, the earthing pole is with leakage current ground connection, has promoted the security.
Description
Technical Field
The utility model belongs to the technical field of current transformer, concretely relates to current transformer for high tension current measurement.
Background
The principle of the current transformer is based on the electromagnetic induction principle, the current transformer is composed of a closed iron core and a winding, the number of turns of a primary side winding of the current transformer is small, and the primary side winding is connected in series with a circuit of current to be measured, so that all current of the circuit always flows through the current transformer, the number of turns of a secondary side winding is large, the secondary side winding is connected in series with a measuring instrument and a protection loop, when the current transformer works, a secondary side loop of the current transformer is always closed, therefore, the impedance of the series coil of the measuring instrument and the protection loop is small, the working state of the current transformer is close to a short circuit, the current transformer converts large current on the primary side into small current on the secondary side for use, and the secondary side cannot be opened.
In the use process of the current transformer, the existing current transformer has no design aiming at the measurement of large current and high voltage, and the value interval of the mutual inductance measurement of the circuit can not be adjusted according to the current and voltage, so that the problems that the use is inconvenient to a certain degree and the measurement precision can not be accurately measured according to the measured value are caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a current transformer for high-voltage current measurement, solved current transformer and did not have the design to the highly compressed measurement of heavy current, and can not carry out the problem between the mutual inductance measuring value interval of regulating circuit according to the size of electric current and voltage.
In order to achieve the above object, the utility model provides a following technical scheme: a current transformer for measuring high-voltage current comprises a box body and a contact block, wherein a box door is movably mounted on the front surface of the box body, a through groove is formed in the box door, a limiting ring is fixedly mounted in the middle of the box body, a fixed ring sleeve is fixedly mounted at the top and the bottom of an inner cavity of the box body, an iron core ring column is fixedly sleeved in the fixed ring sleeve, a first winding is wound on one side of the iron core ring column, first wire connecting rings are connected to the two ends of the first winding, two second wire connecting rings are connected to the outer side of the middle of the first winding, a second winding is wound on the other side of the iron core ring column, a winding contact groove is formed in the outer side of the second winding, a contact rod is movably mounted on the inner side of the winding contact groove, a sleeve ring is fixedly mounted at the other end of the contact rod, and the limiting column is movably sleeved on the inner side of the sleeve ring, the mounting groove has been seted up to one side of box, the locating hole has been seted up to one side of box, one side that the feeler lever was kept away from to the lantern ring articulates there is soft reference column, the bottom fixed mounting of box has the ground connection post, the inside fixed mounting of box has soft limiting plate.
Preferably, the specification and the size of the through groove are matched with those of the limiting ring, and the through groove corresponds to the position of the limiting ring.
By adopting the technical scheme, the high-voltage cable measuring and passing inductance device has the advantages that the high-voltage cable can be penetrated through the groove and the inner part of the limiting ring.
Preferably, the first wire connection ring and the second wire connection ring respectively fixedly penetrate through the side wall of the box body, and the contact block fixedly penetrates through the side wall of the box body.
By adopting the technical scheme, the device has the advantages that the arrangement of the first wire connecting ring and the second wire connecting ring is convenient for the measurement of different external input end cables, and the contact block is convenient for the external connection of another measuring meter to increase the measurement precision and the comparison.
Preferably, both ends of the limiting column are fixedly installed on the inner side of the installation groove, and the positioning hole is located on one side of the installation groove.
By adopting the technical scheme, the locating device has the advantages that the limiting columns provide sliding limiting tracks for the lantern rings, and the locating holes are convenient to match with the soft locating columns to limit the lantern rings.
Preferably, the soft positioning columns are matched with the specification and the size of the positioning holes, and the number of the positioning holes is at least three.
Through adopting above-mentioned technical scheme, the advantage lies in that soft reference column and locating hole cooperation restrict the slip range of the lantern ring to quantity changes according to the quantity of measuring size value and coil winding.
Preferably, the bottom of box articulates there are four anti-skidding callus on the sole, soft limiting plate is located the outside of feeler lever.
Through adopting above-mentioned technical scheme, the advantage lies in the anti-skidding callus on the sole and is convenient for the standing of box, and soft limiting plate makes the sense of touch spacing and winding touch groove contact mutually simultaneously.
Preferably, the inside of the front surface of the box door is movably provided with a measuring meter.
By adopting the technical scheme, the current transformer measuring instrument has the advantage that the measuring instrument is convenient for measuring the current transformer.
Compared with the prior art, the beneficial effects of the utility model are that:
1. through the arranged box door, after the box door is closed, an operator can carry out external connection of cables on the first wiring ring and the second wiring ring through the measuring meter adjusting equipment during measurement, the arrangement of the two wiring rings is convenient for the maximum value and the small current of an input cable to change according to the interval value of current and voltage, if the two first wiring rings are connected with the cable as the maximum value of a winding, the measurement is convenient for measuring large-flow high-precision electromagnetic input, then the sliding of the sliding lantern ring at the outer side of the limiting column enables the contact point of the contact rod to be different from the position of the winding contact groove contacted with the outer side of the second winding, the measuring meter detects that the current and inductance data passing between the contact rod and different contact blocks are also different, the soft positioning column hinged at one side of the lantern ring is inserted into the positioning hole, the position of the lantern ring can be limited, the fixed contact position of the contact rod and the winding contact groove can be indirectly limited, and the measured value can be changed conveniently, the scheme can conveniently measure the current mutual inductance value of the high-voltage current, improves the operation quality and efficiency, and reduces the labor intensity of operators.
2. Through the earthing pole that sets up, because the device probably is used for measuring high-pressure heavy current when using, then equipment probably becomes ageing because service environment and service life's restriction, and then the condition of electric leakage can appear, and the electric leakage of high-pressure heavy current can puncture inside measuring winding and strapping table etc. to lead to the user to probably take place to electrocute, in order to prevent the appearance of this phenomenon, the earthing pole is with leakage current ground connection, has promoted the security.
Drawings
FIG. 1 is a front view of the right side of the present invention;
FIG. 2 is a schematic view of the front left side appearance three-dimensional structure of the present invention;
FIG. 3 is a schematic view of the front view of the internal structure of the present invention;
fig. 4 is an enlarged schematic structural diagram of the position a of the present invention.
In the figure: 1. a box body; 2. a box door; 3. passing through the slot; 4. a limiting ring; 5. positioning holes; 6. A limiting column; 7. mounting grooves; 8. a contact block; 9. a second wire bonding ring; 10. a first wire bonding ring; 11. a first winding; 12. an iron core ring column; 13. fixing the loop; 14. a soft limiting plate; 15. A feeler lever; 16. a collar; 17. the winding contacts the slot; 18. a second winding; 19. a ground post; 20. A soft positioning column; 21. and (6) measuring.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The first embodiment is as follows:
referring to fig. 1-4, the present invention provides a technical solution: a current transformer for measuring high-voltage current comprises a box body 1 and a contact block 8, wherein a box door 2 is movably arranged on the front surface of the box body 1, a through groove 3 is formed in the box door 2, a limiting ring 4 is fixedly arranged in the middle of the box body 1, a fixed ring sleeve 13 is fixedly arranged at the top and the bottom of an inner cavity of the box body 1, an iron core ring post 12 is fixedly sleeved in the fixed ring sleeve 13, a first winding 11 is wound on one side of the iron core ring post 12, two ends of the first winding 11 are respectively connected with a first wire connecting ring 10, two second wire connecting rings 9 are connected on the outer side of the middle of the first winding 11, a second winding 18 is wound on the other side of the iron core ring post 12, a winding contact groove 17 is formed in the outer side of the second winding 18, a contact rod 15 is movably arranged on the inner side of the winding contact groove 17, a sleeve ring 16 is fixedly arranged at the other end of the contact rod 15, the limiting post 6 is movably sleeved on the inner side of the sleeve ring 16, mounting groove 7 has been seted up to one side of box 1, and locating hole 5 has been seted up to one side of box 1, and the lantern ring 16 is kept away from one side of feeler lever 15 and is articulated have soft reference column 20, and the bottom fixed mounting of box 1 has ground post 19, and the inside fixed mounting of box 1 has soft limiting plate 14.
In the embodiment, through the arranged door 2, after the door 2 is closed, an operator adjusts the device through the measuring meter 21, the first wire connecting ring 10 and the second wire connecting ring 9 are externally connected with a cable during measurement, the arrangement of the two wire connecting rings is convenient for the maximum value and the small current of the input cable to change according to the interval value of current and voltage, if the two first wire connecting rings 10 are connected with the cable as the maximum value of a winding, the measurement is convenient for measuring large-flow high-precision electromagnetic input, then the sliding of the sliding lantern ring 16 on the outer side of the limiting column 6 causes the position of the contact point of the contact rod 15 to be different from the position of the winding contact groove 17 contacted with the outer side of the second winding 18, the measuring meter 21 detects that the current and inductance data passing between the contact rod 15 and different contact point blocks 8 are also different, the soft positioning column 20 hinged on one side of the lantern ring 16 is inserted into the positioning hole 5, the position of the lantern ring 16 can be limited and indirectly limit the fixed contact position of the contact rod 15 and the winding contact groove 17, the measuring value is convenient to change, the current mutual inductance value of the high-voltage current can be conveniently measured by the scheme, the operation quality and efficiency are improved, and the labor intensity of operators is reduced.
Example two:
as shown in fig. 1-4, on the basis of the first embodiment, the utility model provides a technical solution: the first wire connecting ring 10 and the second wire connecting ring 9 respectively and fixedly penetrate through the side wall of the box body 1 and the contact block 8 fixedly penetrates through the side wall of the box body 1 through the matching of the specification and the dimension of the groove 3 and the specification and the dimension of the limit ring 4 and the corresponding positions of the groove 3 and the limit ring 4.
In this embodiment, the positions of the groove 3 and the position-limiting ring 4 correspond to each other, so that the ground can be conveniently penetrated through a high-voltage cable to measure through inductance, and the mode of measuring data is increased, the first wire connecting ring 10 and the second wire connecting ring 9 are externally connected with cables, the arrangement of the two wire connecting rings is convenient for the maximum value and the small current of the input cable to change according to the interval value of current and voltage, for example, the two first wire connecting rings 10 are connected with the maximum value of a winding, the measurement is convenient for measuring the electromagnetic input with large flow and high precision, and when the contact block 8 is connected with the measuring meter 21 to transmit data, the contact block can also be externally connected with other measuring equipment to facilitate error calibration, comparison and the like.
Example three:
as shown in fig. 1-4, on the basis of the first embodiment and the second embodiment, the utility model provides a technical solution: the two ends of the limiting column 6 are fixedly arranged on the inner side of the mounting groove 7, the positioning hole 5 is positioned on one side of the mounting groove 7, the soft positioning columns 20 are matched with the specification and the size of the positioning holes 5, and the number of the positioning holes 5 is at least three.
In this embodiment, the outer side of the limit post 6 is sleeved with the sleeve ring 16 to slide along the predetermined track of the limit post 6, the soft positioning column 20 is inserted into the positioning hole 5 after the sleeve ring 16 slides to the predetermined position, so as to limit the position of the sleeve ring 16 to prevent the precision from being influenced by accidental sliding during measurement, the number of the positioning holes 5 is changed according to the measurement size and the number of the coil windings, and the adjustment of the fixed parameters is facilitated.
Example four:
as shown in fig. 1-4, on the basis of the first embodiment, the second embodiment and the third embodiment, the utility model provides a technical solution: the bottom of the box body 1 is hinged with four anti-skidding foot pads, the soft limiting plate 14 is positioned at the outer side of the feeler lever 15, and the measuring meter 21 is movably arranged in the front of the box door 2.
In this embodiment, anti-skidding cushion is convenient for box 1 and stands at the holding surface, the effect of soft limiting plate 14 is the position of injecing feeler lever 15 simultaneously, make its laminating winding touch the inboard in groove 17, be convenient for contact second winding 18, the input of measuring gauge 21 passes through wire and contact piece 8 and feeler lever 15's output electric connection, change the different connection electromagnetic induction numerical value of connected state measurement, the input electric connection of wire and ground post 19 is passed through to the output of measuring gauge 21, be convenient for derive inside leakage current.
The utility model discloses a theory of operation and use flow: when in use, after the door 2 is closed, an operator adjusts equipment through the measuring meter 21, the first wire connecting ring 10 and the second wire connecting ring 9 are externally connected with cables during measurement, the arrangement of the two wire connecting rings is convenient for the maximum value and the small current of the input cables to change according to the interval value of current and voltage, if the two first wire connecting rings 10 are connected with the cables to be the maximum value of windings, the measurement is convenient for measuring large-flow high-precision electromagnetic input, then the sliding of the sliding lantern ring 16 on the outer side of the limiting column 6 ensures that the positions of the contact points of the contact rod 15 are different from the positions of the winding contact grooves 17 contacted with the outer side of the second winding 18, the measuring meter 21 detects that the current and inductance data passing between the contact rod 15 and different contact blocks 8 are also different, the soft positioning column hinged on one side of the lantern ring 16 is inserted into the positioning hole 5, the position of the lantern ring 16 can be limited and the fixed contact position of the contact rod 15 and the winding contact grooves 17 can be indirectly limited, the measuring value is convenient to change, the current mutual inductance value of the high-voltage current can be conveniently measured by the scheme, the operation quality and efficiency are improved, and the labor intensity of operators is reduced.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a current transformer for high tension current measurement, includes box (1) and contact piece (8), its characterized in that: the utility model discloses a transformer cabinet, including box (1), box (2), through groove (3) have been seted up to the inside of box (2), the inside fixed mounting of box (1) intermediate part has spacing ring (4), the equal fixed mounting in top and the bottom of box (1) inner chamber has fixed ring cover (13), the inside fixed cover of fixed ring cover (13) has cup jointed iron core ring post (12), one side of iron core ring post (12) has been around having first winding (11), the both ends of first winding (11) all are connected with first wiring ring (10), the outside of first winding (11) intermediate part is connected with two second wiring rings (9), the opposite side of iron core ring post (12) has been around having second winding (18), winding contact groove (17) have been seted up in the outside of second winding (18), the inboard movable mounting of winding contact groove (17) has feeler lever (15), the other end fixed mounting of feeler lever (15) has the lantern ring (16), spacing post (6) have been cup jointed in the inboard activity of the lantern ring (16), mounting groove (7) have been seted up to one side of box (1), locating hole (5) have been seted up to one side of box (1), one side that feeler lever (15) were kept away from in the lantern ring (16) articulates there is soft reference column (20), the bottom fixed mounting of box (1) has ground connection post (19), the inside fixed mounting of box (1) has soft limiting plate (14).
2. The current transformer for measuring high-voltage current according to claim 1, characterized in that: the specification and the size of the through groove (3) are matched with those of the limiting ring (4), and the through groove (3) corresponds to the position of the limiting ring (4).
3. The current transformer for measuring high-voltage current according to claim 1, characterized in that: the first wire connecting ring (10) and the second wire connecting ring (9) are respectively fixedly penetrated through the side wall of the box body (1), and the contact block (8) is fixedly penetrated through the side wall of the box body (1).
4. The current transformer for measuring high-voltage current according to claim 1, characterized in that: the two ends of the limiting column (6) are fixedly installed on the inner side of the installation groove (7), and the positioning hole (5) is located on one side of the installation groove (7).
5. The current transformer for measuring high-voltage current according to claim 4, characterized in that: the soft positioning columns (20) are matched with the specification and the size of the positioning holes (5), and the number of the positioning holes (5) is at least three.
6. The current transformer for measuring high-voltage current according to claim 1, characterized in that: the bottom of box (1) articulates there are four anti-skidding callus on the sole, soft limiting plate (14) are located the outside of feeler lever (15).
7. The current transformer for measuring high-voltage current according to claim 1, characterized in that: the inside of the front surface of the box door (2) is movably provided with a measuring meter (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121229131.9U CN214797000U (en) | 2021-06-02 | 2021-06-02 | Current transformer for measuring high-voltage current |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121229131.9U CN214797000U (en) | 2021-06-02 | 2021-06-02 | Current transformer for measuring high-voltage current |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214797000U true CN214797000U (en) | 2021-11-19 |
Family
ID=78700729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121229131.9U Expired - Fee Related CN214797000U (en) | 2021-06-02 | 2021-06-02 | Current transformer for measuring high-voltage current |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214797000U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114242413A (en) * | 2021-12-10 | 2022-03-25 | 国网河北省电力有限公司元氏县供电分公司 | Multifunctional high-voltage transformer |
-
2021
- 2021-06-02 CN CN202121229131.9U patent/CN214797000U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114242413A (en) * | 2021-12-10 | 2022-03-25 | 国网河北省电力有限公司元氏县供电分公司 | Multifunctional high-voltage transformer |
| CN114242413B (en) * | 2021-12-10 | 2023-11-10 | 国网河北省电力有限公司元氏县供电分公司 | Multifunctional high-voltage transformer |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211119 |
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| CF01 | Termination of patent right due to non-payment of annual fee |