CN218037264U - Electrified discriminating gear of outer core current direction in coaxial grounding cable - Google Patents
Electrified discriminating gear of outer core current direction in coaxial grounding cable Download PDFInfo
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- CN218037264U CN218037264U CN202221788175.XU CN202221788175U CN218037264U CN 218037264 U CN218037264 U CN 218037264U CN 202221788175 U CN202221788175 U CN 202221788175U CN 218037264 U CN218037264 U CN 218037264U
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Abstract
The utility model discloses an electrified discriminating gear of interior outer core current direction of coaxial earth cable, including measuring unit and handheld terminal, measuring unit includes first current sensor, second current sensor and third current sensor, handheld terminal includes insulated handle and insulating housing, first current sensor and second current sensor are the flexible luo shi coil of open-close type, the department of opening and shutting utilizes the wire interface to connect or break off, manual installation is on two "goat's horn", be used for measuring the electric current of flowing through two "goat's horns", third current sensor is first luo shi coil, the one end of first luo shi coil is fixed inside left folder, the other end is connected with the inside of right folder after passing base inside, the electric current that is used for measuring the copper bar. The utility model discloses after detecting the defect position with the electricity, can directly carry out the power failure and remove and lack, shorten the power off time, improve the service reliability, realized the power failure and detected the transformation to electrified detection, and easy operation, convenient fortune dimension personnel use.
Description
Technical Field
The utility model relates to an electrified discriminating gear of direction of current especially relates to an electrified discriminating gear of interior outer core current direction of coaxial grounding cable.
Background
In a cross interconnection unit, two cross interconnection boxes are respectively connected with six insulating joints through six coaxial grounding cables, wherein two grounding columns are arranged on a copper shell of one insulating joint and are called as an M column and an N column; m columns and N columns on the copper shell of the insulating joint are respectively connected with inner and outer cores of the coaxial grounding cable, and the inner and outer cores of the coaxial grounding cable are forked like a goat horn, so that the coaxial grounding cable is commonly called as a goat horn.
During connection, the inner core and the outer core of one end of each coaxial grounding cable are forked to form a 'goat' horn which is respectively connected with the M column and the N column on the insulating joint, the other end of each coaxial grounding cable enters the cross interconnection box, the outer core is connected with one of the lower row of three binding posts in the box, and the inner core is connected with one of the lower row of three binding posts in the box.
In a normal cross interconnection unit, six insulation joints are all connected with the outer core of a coaxial grounding cable through M columns or all connected with the outer core of the coaxial grounding cable through N columns, if the connection is inconsistent, normal offset of loop induction voltage cannot be achieved, the defect that a claw is connected reversely is commonly known, and the defect can cause increase of circulation loss, reduction of current-carrying capacity, insulation aging and even main insulation fault.
The three copper bars can be clearly seen from the cross interconnection box and are respectively connected with the core of the same-shaft grounding cable; however, it is difficult to accurately distinguish the inner and outer cores of the coaxial grounding cable through appearance observation at the 'horn', so that how the inner and outer cores are connected with the M and N columns cannot be confirmed, that is, the directions of the inner and outer cores cannot be judged.
In addition, because the current magnitude of the two "cavels" may be close to each other, if the current flowing through the two "cavels" and the current flowing through the copper bar in the cross-connection box are compared in magnitude, the directions of the inner core and the outer core of the coaxial grounding cable cannot be accurately distinguished.
Aiming at the defect of reverse connection of a cleat, the current processing mode is to adopt a planned power failure maintenance means and judge the directions of inner and outer cores of a coaxial grounding cable through a conduction test of the inner and outer cores of the coaxial grounding cable, but the method is time-consuming and labor-consuming.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that: the coaxial grounding cable inner and outer core current direction electrified judging device overcomes the defects of the prior art, can replace the original power failure test, shortens the power failure time and improves the power supply reliability.
The utility model discloses a technical scheme who solves technical problem and take is:
a coaxial grounding cable inner and outer core current direction live judgment device comprises a measuring unit and a handheld terminal, wherein the measuring unit comprises a first current sensor, a second current sensor and a third current sensor, the handheld terminal comprises an insulating handle and an insulating shell, and the insulating handle and the insulating shell are separately arranged;
a first main controller, a first communication module and a first power supply are arranged in the insulating shell, two through holes are formed in the side wall of the insulating shell, a first data line is arranged in each of the two through holes, one end of each of the two first data lines is connected with the first main controller, and the other end of each of the two first data lines is connected with the corresponding first current sensor and the corresponding second current sensor;
the insulated handle comprises a handle and a base, the handle and the base are fixed together, and a pull wire connecting hole and a second data wire connecting hole which penetrate through the inside of the handle and the inside of the base are formed in the connecting position of the handle and the base;
a second main controller, a second communication module, a second power supply and two motors are arranged in the handle, and output shafts of the two motors are respectively connected with a driving column; the left side and the right side of the interior of the base are respectively provided with a passive column, one passive column is fixedly connected with a left clamping piece, the other passive column is fixedly connected with a right clamping piece, the interiors of the left clamping piece and the right clamping piece are both of a hollow structure, the interiors of the left clamping piece and the right clamping piece are communicated with the interior of the base, the third current sensor is a first Rogowski coil, one end of the first Rogowski coil is fixed in the interior of the left clamping piece, the other end of the first Rogowski coil penetrates through the interior of the base and then is connected with the interior of the right clamping piece, the two active columns are respectively connected with the corresponding passive columns through the pull line connecting holes by utilizing different pull lines, and the second main controller is connected with the first Rogowski coil by utilizing a second data line through the second data line connecting hole.
The first main controller is respectively connected with the first communication module, the synchronous time synchronization module, the touch screen, the first current sensor and the second current sensor, and the first power supply supplies power to the first main controller, the first communication module and the synchronous time synchronization module; the first current sensor and the second current sensor are both open-close type flexible Rogowski coils, and the open-close positions are connected or disconnected by using a lead interface; the second main controller is respectively connected with the two motors, the first communication module and the pressure sensor, the second power supply supplies power to the second main controller, the second communication module and the motors, and the first communication module is connected with the second communication module through Bluetooth.
The base is a U-shaped base, the two side walls of the base are a left side wall and a right side wall respectively, a left U-shaped groove is formed in the opening end of the left side wall, a right U-shaped groove is formed in the opening end of the right side wall, one end of one driven column is arranged in the upper half portion of the left side wall, and the other end of the driven column penetrates through the left U-shaped groove and then is arranged in the lower half portion of the left side wall; another the one end setting of passive post is in inside the first half of right side wall, the other end passes set up behind the U type recess of right side inside the latter half of right side wall, two the passive post with the left side wall or right side wall junction all is provided with the bearing, two the passive post under the effect of bearing separately, the homoenergetic is in circular rotation on left side wall or the right side wall.
The left clamping piece is arranged in the left U-shaped groove and fixed with the driven column in the left U-shaped groove, and the left clamping piece can rotate along with the rotation of the left driven column; the right clamping piece is arranged inside the right U-shaped groove and fixed with the driven column in the right U-shaped groove, and the right clamping piece can rotate along with the rotation of the right driven column.
One end of the left clamping piece, which is far away from the driven column connected with the left clamping piece, or one end of the right clamping piece, which is far away from the driven column connected with the right clamping piece, is provided with a pressure sensor, a threading hole communicated with the interior of the base is formed in the left clamping piece or the right clamping piece provided with the pressure sensor, and the pressure sensor penetrates through the threading hole, the interior of the base and the interior of the handle through a connecting wire and then is connected with the second main controller; when the left clamping piece and the right clamping piece are completely contacted and combined together, the pressure sensor can be pressed and can detect the pressure between the contact surfaces of the left clamping piece and the right clamping piece; two ends of the first Rogowski coil, which are respectively arranged in the left clamping piece and the right clamping piece, are contacted to form a closed circle.
The utility model discloses an actively beneficial effect is:
1. the utility model discloses including first current sensor, the second current sensor, the third current sensor, the insulating handle that has internal circuit and the insulating casing that has internal circuit, the internal circuit in the insulating handle passes through the bluetooth and links to each other with the internal circuit in the insulating casing, measure the interior outer core branch mouth that flows through on the same root cable through first current sensor and second current sensor, the electric current of "goat's horn" department promptly, measure the electric current that flows through the copper bar in the cross-connection case through the third current sensor, through the comparison to electric current size and phase place, detect out the direction of connection of the interior outer core of coaxial ground cable; can be with the realization of safety under charged state to the detection of the interior outer core direction of coaxial earth cable, thereby detect out and whether there is "goat's horn" to connect the anti-defect in every insulated joint who connects the cross interconnection case in same cross interconnection unit, during the detection, each cross interconnection case and goat's horn department electric current in the cross interconnection section of continuous measurement, the position of defect, its electric current is obvious different with other positions, thereby detect out the position of defect, replace the power failure conduction test, detect behind the defective position with the electrification, can directly carry out the power failure and remove the vacancy, shorten the power off time, improve the power supply reliability, the conversion that has realized the power failure and has detected to electrified detection, and easy operation, make things convenient for fortune dimension personnel to use.
2. The utility model discloses well third current sensor's coil is normally open coil, the connector department on both sides is provided with left folder and right folder respectively about the coil, pressure sensor is installed to left folder or right folder port department, back in left folder and right folder closure together, left folder and right folder closely laminate and connect, can oppress the pressure sensor of port department, through the pressure that pressure sensor experienced, whether can detect the closed degree of coil satisfies the requirement of accurate measurement, avoid the magnetic leakage to lead to measuring inaccurate.
In addition, because third current sensor passes through pedestal connection on the insulator spindle, and can electronic switching that realizes third current sensor, through two motor actions of electric connection control second main control unit drive promptly, two initiative posts utilize different pull wires to pass through the pull wire connecting hole respectively and the passive support connnection who corresponds, thereby drive opening and the closure of left folder and right folder, can guarantee like this that operating personnel keeps sufficient safe distance with electrified copper bar, avoid the mistake to bump the electric shock risk that the copper bar arouses.
Drawings
Fig. 1 is a structural connection block diagram of the device for judging the direction of current flowing between the inner core and the outer core of the coaxial grounding cable;
FIG. 2 is a schematic structural view of the insulated handle of the present invention;
FIG. 3 is an internal view of FIG. 2;
fig. 4 is a schematic structural diagram of the insulating housing according to the present invention;
fig. 5 is an internal view of fig. 4.
Detailed Description
Embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While certain embodiments of the invention have been illustrated in the accompanying drawings, it will be understood that the invention may be embodied in various forms and should not be construed as limited to the embodiments set forth herein, but rather are provided for a more complete and thorough understanding of the invention. It should be understood that the drawings and examples are for illustrative purposes only and are not intended to limit the scope of the present disclosure.
The term "include" and variations thereof as used herein are open-ended, i.e., "including but not limited to".
The names of messages or information exchanged between devices in embodiments of the present invention are for illustrative purposes only, and are not intended to limit the scope of such messages or information.
Referring to fig. 1-5, in which: 1-a first current sensor, 2-a second current sensor, 3-a power button, 4-an insulating handle, 4-1-a handle, 4-2-a base, 5-an insulating shell, 6-a first main controller, 7-a first communication module, 8-a first power supply, 9-a synchronous time setting module, 10-a touch screen, 11-a through hole, 12-a first data line, 13-a lead interface, 14-a lead connecting hole, 15-a second data line connecting hole, 16-a second main controller, 17-a second communication module, 18-a second power supply, 19-an active column, 20-a passive column, 21-a left U-shaped groove, 22-a right U-shaped groove, 23-a left clamping piece and 24-a right clamping piece.
Example (b): the utility model provides an electrified discriminating gear of coaxial ground cable inside and outside core current direction, includes measuring unit and handheld terminal, and measuring unit includes first current sensor 1, second current sensor 2 and third current sensor, and handheld terminal includes insulated handle 4 and insulating housing 5, and insulated handle 4 separately sets up with insulating housing 5.
The insulating housing 5 is internally provided with a first main controller 6, a first communication module 7, a first power supply 8 and a synchronous time synchronization module 9, the insulating housing 5 is provided with a touch screen 10, the first main controller 6 is respectively connected with the first communication module 7, the synchronous time synchronization module 9, the touch screen 10, the first current sensor 1 and the second current sensor 2, and the first power supply 8 supplies power to the first main controller 6, the first communication module 7 and the synchronous time synchronization module 9.
Two through holes 11 are formed in the side wall of the insulating shell 5, a first data line 12 is arranged in each through hole 11, one end of each first data line 12 is connected with the first main controller 6, and the other end of each first data line is connected with the corresponding first current sensor 1 and the corresponding second current sensor 2.
The first current sensor 1 and the second current sensor 2 are both open-close type flexible Roche coils, are connected with a first main controller 6 in the insulating shell 5 through a first data line 12, are connected or disconnected at the open-close position by using a wire interface 13, are manually installed on two sheep horns and are used for measuring the current flowing through the two sheep horns.
The first current sensor 1 and the second current sensor 2 transmit the monitored data to the first master controller 6 via a first data line 12.
The insulated handle 4 comprises a handle 4-1 and a base 4-2, the handle 4-1 is fixed with the base 4-2, and a pull wire connecting hole 14 and a second data wire connecting hole 15 which penetrate through the inside of the handle 4-1 and the inside of the base 4-2 are formed in the connecting part of the handle 4-1 and the base 4-2.
A second main controller 16, a second communication module 17, a second power supply 18 and two motors are arranged in the handle 4-1, and output shafts of the two motors are respectively connected with a driving column 19.
The second main controller 16 is respectively connected with the two motors, the second communication module 17 and the pressure sensor, the second power supply 18 supplies power to the second main controller 16, the second communication module 17 and the motors, and the first communication module 7 is connected with the second communication module 17 through Bluetooth.
The third current sensor is a hard rogowski coil and is used for measuring the current flowing through the copper bar, and a second data line is connected with a second main controller 16 through a second data line connecting hole 15.
The left side and the right side of the interior of the base 4-2 are respectively provided with a passive column 20, specifically, the base 4-2 is a U-shaped base 4-2, the two side walls of the base 4-2 are respectively a left side wall and a right side wall, the open end of the left side wall is provided with a left U-shaped groove 21, the open end of the right side wall is provided with a right U-shaped groove 22, one end of one passive column 20 is arranged in the upper half part of the left side wall, and the other end of the passive column passes through the left U-shaped groove 21 and then is arranged in the lower half part of the left side wall; one end of another driven column 20 is arranged inside the upper half part of the right side wall, the other end of the other driven column passes through the right U-shaped groove 22 and then is arranged inside the lower half part of the right side wall, bearings are arranged at the joints of the two driven columns 20 and the left side wall or the right side wall, and the two driven columns 20 can rotate on the left side wall or the right side wall in a circumferential mode under the action of the bearings.
A left clamping piece 23 is arranged in the left U-shaped groove 21, the left clamping piece 23 is fixed with the driven column 20 in the left U-shaped groove 21, and the left clamping piece 23 can rotate along with the rotation of the left driven column 20; the right clamping piece 24 is arranged inside the right U-shaped groove 22, the right clamping piece 24 is fixed with the driven column 20 in the right U-shaped groove 22, the right clamping piece 24 can rotate along with the rotation of the right driven column 20, and the left clamping piece 23 and the right clamping piece 24 can be mutually opened or closed through the rotation of the left clamping piece 23 and the right clamping piece 24.
The insides of the left clamping piece 23, the right clamping piece 24 and the base 4-2 are all hollow structures, and the insides of the left clamping piece 23 and the right clamping piece 24 are communicated with the inside of the base 4-2.
The third current sensor is a first Rogowski coil, one end of the first Rogowski coil is fixed inside the left clamping piece 23, the other end of the first Rogowski coil penetrates through the base 4-2 and then is connected with the inside of the right clamping piece 24, the two driving columns 19 are connected with the corresponding driven columns 20 through the pulling line connecting holes 14 respectively by using different pulling lines, the second main controller 16 is connected with the first Rogowski coil through the second data line connecting holes 15 by using a second data line, and as a copper bar belongs to a bare leakage charged part during operation, the first Rogowski coil is connected with the handle 4-1, the handle 4-1 is insulated, and the handle 4-1 can bear 10kV voltage.
The active column 19 and the passive column 20 are respectively provided with a plurality of continuous grooves, two ends of a traction wire can be respectively wound and embedded in the grooves on the active column 19 and the passive column 20, an operator sends a command for driving the first controller to rotate forwardly through the touch screen 10, the command is sent to the second controller through the first communication module 7 and the second communication module 17 by the first controller, the motor is further controlled to rotate forwardly, when the motor rotates forwardly, the corresponding motor drives the active column 19 to rotate, the traction wire on the passive column 20 is pulled apart and wound on the active column 19 while the active column 19 rotates, when the traction wire on the passive column 20 leaves the passive column 20, the traction wire can enable the passive column 20 to rotate, the left clamping piece 23 or the right clamping piece 24 also rotates because the passive column 20 is fixed with the left clamping piece 23 or the right clamping piece 24, so that the left clamping piece 23 and the right clamping piece 24 are closed, the torsion spring is arranged on the passive column 20, the other end of the torsion spring is in contact with the inner wall of the base 4-2, and the torsion spring is arranged on the left clamping piece 23 or the right clamping piece 24 in the closing process; when the motor needs to rotate reversely, an operator sends a command for driving the motor to rotate reversely to the first controller through the touch screen 10, the command is sent to the second controller by the first controller through the first communication module 7 and the second communication module 17, the motor is further controlled to rotate reversely, when the motor rotates reversely, the traction wire leaves from the driving column 19, when the traction force is lost, the torsion spring enables the driven column 20 to rotate reversely under the action of the elastic force of the torsion spring, the traction wire is recovered to the driven column 20, the driven column 20 drives the left clamping piece 23 and the right clamping piece 24 to move in opposite directions while rotating reversely, and the left clamping piece 23 and the right clamping piece 24 are separated.
A pressure sensor is arranged at one end of the left clamping piece 23 far away from the driven column 20 connected with the left clamping piece or one end of the right clamping piece 24 far away from the driven column 20 connected with the right clamping piece, a threading hole communicated with the interior of the base 4-2 is arranged on the left clamping piece 23 or the right clamping piece 24 provided with the pressure sensor, and the pressure sensor passes through the threading hole, the interior of the base 4-2 and the interior of the handle 4-1 through a connecting lead and then is connected with the second main controller 16; when the left clamping piece 23 and the right clamping piece 24 are completely contacted and combined together, the contact surface of the left clamping piece 23 and the contact surface of the right clamping piece 24 are in tight fit connection, a pressure sensor can be pressed, and the pressure sensor can detect the pressure between the contact surfaces of the left clamping piece 23 and the right clamping piece 24; the two ends of the first Rogowski coil, which are respectively arranged in the left clamping piece 23 and the right clamping piece 24, are contacted to form a closed circle, whether the closing degree of the coil can meet the requirement of accurate measurement through a pressure sensor is detected, and the phenomenon that the magnetic flux leakage causes inaccurate measurement is avoided.
The first main controller 6 module sends a driving motor working instruction to the second main controller 16 through the first communication module 7 by using the bluetooth and the second communication module 17, so that the third current sensor is opened or closed, the pressure at the interface of the third current sensor and the data detected by the third current sensor are firstly transmitted to the second main controller 16, and then the pressure and the data are transmitted to the first main controller 6 through the second communication module 17 by using the bluetooth and the first communication module 7.
During operation, the first current sensor 1 and the second current sensor 2 are respectively arranged on two ' goat ' horns ' of one of the insulation joints in the same cross-connection box, then the corresponding cross-connection box is opened, the inner core and the outer core of the coaxial grounding cable can be obviously seen in the cross-connection box, an operator brings an insulating glove to operate an insulating handle 4 to enable the third current sensor to be close to a copper bar connected with the outer core of the same-phase coaxial cable, presses a power button 3 on an insulating shell 5, opens a touch screen 10, presses a closing button on the touch screen 10 to close the third current sensor, enables a first Rogowski coil on the third current sensor to be closed, checks whether the pressure of a third current sensor interface displayed on a display screen on the insulating shell 5 meets the requirement, if the pressure meets the requirement, clicking a measuring button on the touch screen 10, sending an acquisition instruction to the first current sensor 1, the second current sensor 2 and the third current sensor, acquiring the magnitude and phase of the current flowing through the two goat horns and the copper bar, comparing the acquired data by the first main controller 6, if the magnitude and phase of the current acquired at the goat horn connected with the M column are basically the same as those of the current acquired at the copper bar, connecting the goat horn connected with the M column with the outer core of the coaxial grounding cable, otherwise, connecting the goat horn connected with the N column with the outer core of the coaxial grounding cable, pressing the button on the touch screen 10 again to separate the left clamping piece 23 and the right clamping piece 24 on the third current sensor, and taking the third current sensor down from the copper bar; manually opening the lead interface 13, and taking down the first current sensor 1 and the second current sensor 2 from two 'sheep horns' of the insulating joint; the other five insulation joints connected with two cross interconnection boxes in the same cross interconnection unit are respectively operated, if all the 'cavels' connected with the M column are connected with the outer core of the coaxial ground cable, or all the 'cavels' connected with the N column are connected with the outer core of the coaxial ground cable, the cross interconnection unit does not have the defect of 'cavel' reverse connection, if the connection directions are inconsistent, the defect of 'cavel' reverse connection exists, and if the defect of 'cavel' reverse connection exists, the 'cavels' which are inconsistent with the connection directions of the 'cavels' of other insulation joints can be directly adjusted after power failure.
It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments illustrated herein, but is capable of various obvious modifications, rearrangements and substitutions without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.
Claims (5)
1. The utility model provides an electrified discriminating gear of interior outer core current direction of coaxial earth cable, includes measuring element and handheld terminal, characterized by: the measurement unit comprises a first current sensor, a second current sensor and a third current sensor, the handheld terminal comprises an insulating handle and an insulating shell, and the insulating handle and the insulating shell are separately arranged;
a first main controller, a first communication module and a first power supply are arranged in the insulating shell, two through holes are formed in the side wall of the insulating shell, a first data line is arranged in each of the two through holes, one end of each of the two first data lines is connected with the first main controller, and the other end of each of the two first data lines is connected with the corresponding first current sensor and the corresponding second current sensor;
the insulated handle comprises a handle and a base, the handle and the base are fixed together, and a pull wire connecting hole and a second data wire connecting hole which penetrate through the inside of the handle and the inside of the base are formed in the connecting position of the handle and the base;
a second main controller, a second communication module, a second power supply and two motors are arranged in the handle, and output shafts of the two motors are respectively connected with a driving column; the left side and the right side of the interior of the base are respectively provided with a passive column, the two active columns are respectively connected with the corresponding passive columns through traction line connecting holes by utilizing different traction lines, one passive column is fixedly connected with a left clamping piece, the other passive column is fixedly connected with a right clamping piece, the interiors of the left clamping piece and the right clamping piece are both of a hollow structure, the interiors of the left clamping piece and the right clamping piece are communicated with the interior of the base, the third current sensor is a first Rogowski coil, one end of the first Rogowski coil is fixed in the interior of the left clamping piece, the other end of the first Rogowski coil penetrates through the interior of the base and then is connected with the interior of the right clamping piece, and the second main controller is connected with the first Rogowski coil through a second data line connecting hole.
2. The device for discriminating the current direction of the inner core and the outer core of the coaxial grounding cable according to claim 1, wherein: the first main controller is respectively connected with the first communication module, the synchronous time synchronization module, the touch screen, the first current sensor and the second current sensor, and the first power supply supplies power to the first main controller, the first communication module and the synchronous time synchronization module; the first current sensor and the second current sensor are both open-close type flexible Rogowski coils, and the open-close positions are connected or disconnected by using a lead interface; the second main controller is respectively connected with the two motors, the second communication module and the pressure sensor, the second power supply supplies power to the second main controller, the second communication module and the motors, and the first communication module is connected with the second communication module through Bluetooth.
3. The device for judging the direction of current flowing in the inner core and the outer core of the coaxial grounding cable according to claim 2, wherein: the base is a U-shaped base, the two side walls of the base are a left side wall and a right side wall respectively, a left U-shaped groove is formed in the opening end of the left side wall, a right U-shaped groove is formed in the opening end of the right side wall, one end of one passive column is arranged in the upper half portion of the left side wall, and the other end of the passive column penetrates through the left U-shaped groove and is arranged in the lower half portion of the left side wall; another the one end setting of passive post is in inside the first half of right side wall, the other end passes set up behind the U type recess of right side inside the latter half of right side wall, two the passive post with the left side wall or right side wall junction all is provided with the bearing, two the passive post under the effect of bearing separately, the homoenergetic is in circular rotation on left side wall or the right side wall.
4. The device for discriminating the current direction of the inner core and the outer core of the coaxial grounding cable according to claim 3, wherein: the left clamping piece is arranged in the left U-shaped groove and fixed with the driven column in the left U-shaped groove, and the left clamping piece can rotate along with the rotation of the left driven column; the right clamping piece is arranged inside the right U-shaped groove and fixed with the driven column in the right U-shaped groove, and the right clamping piece can rotate along with the rotation of the right driven column.
5. The device for discriminating the live current direction of the inner core and the outer core of the coaxial grounding cable according to claim 4, wherein: one end of the left clamping piece, which is far away from the driven column connected with the left clamping piece, or one end of the right clamping piece, which is far away from the driven column connected with the right clamping piece, is provided with a pressure sensor, a threading hole communicated with the interior of the base is formed in the left clamping piece or the right clamping piece provided with the pressure sensor, and the pressure sensor penetrates through the threading hole, the interior of the base and the interior of the handle through a connecting wire and then is connected with the second main controller; when the left clamping piece and the right clamping piece are completely contacted and combined together, the pressure sensor can be pressed and can detect the pressure between the contact surfaces of the left clamping piece and the right clamping piece; two ends of the first Rogowski coil, which are respectively arranged in the left clamping piece and the right clamping piece, are contacted to form a closed circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221788175.XU CN218037264U (en) | 2022-07-12 | 2022-07-12 | Electrified discriminating gear of outer core current direction in coaxial grounding cable |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202221788175.XU CN218037264U (en) | 2022-07-12 | 2022-07-12 | Electrified discriminating gear of outer core current direction in coaxial grounding cable |
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| CN (1) | CN218037264U (en) |
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| GR01 | Patent grant | ||
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231218 Address after: Room 02, 10th Floor, Building 1, Longyue Building, No. 42 Guanggu 1st Road, Donghu New Technology Development Zone, Wuhan City, Hubei Province, 430070 Patentee after: WUHAN HUAWEI ZHONGKE ELECTRIC POWER Co.,Ltd. Address before: 450000 Huaihe West Road, Zhongyuan District, Zhengzhou, Henan Province, 19 Patentee before: STATE GRID HENAN ELECTRIC POWER COMPANY ZHENGZHOU POWER SUPPLY Co. Patentee before: WUHAN HUAWEI ZHONGKE ELECTRIC POWER Co.,Ltd. Patentee before: STATE GRID CORPORATION OF CHINA |