CN117607543B - Device and method for measuring line impedance of each node of transformer area - Google Patents

Device and method for measuring line impedance of each node of transformer area Download PDF

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Publication number
CN117607543B
CN117607543B CN202311583571.8A CN202311583571A CN117607543B CN 117607543 B CN117607543 B CN 117607543B CN 202311583571 A CN202311583571 A CN 202311583571A CN 117607543 B CN117607543 B CN 117607543B
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China
Prior art keywords
shell
sliding
plate
fixedly connected
screw
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Active
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CN202311583571.8A
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Chinese (zh)
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CN117607543A (en
Inventor
张永强
乔君
王芳
彭洋
胡恒
孟杨
周封
徐凤霞
田静琦
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State Grid Corp of China SGCC
State Grid Heilongjiang Electric Power Co Ltd
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State Grid Corp of China SGCC
State Grid Heilongjiang Electric Power Co Ltd
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Application filed by State Grid Corp of China SGCC, State Grid Heilongjiang Electric Power Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN202311583571.8A priority Critical patent/CN117607543B/en
Publication of CN117607543A publication Critical patent/CN117607543A/en
Application granted granted Critical
Publication of CN117607543B publication Critical patent/CN117607543B/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/02Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R1/00Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
    • G01R1/02General constructional details
    • G01R1/04Housings; Supporting members; Arrangements of terminals
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R1/00Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
    • G01R1/02General constructional details
    • G01R1/04Housings; Supporting members; Arrangements of terminals
    • G01R1/0408Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
    • G01R1/0416Connectors, terminals

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Resistance Or Impedance (AREA)

Abstract

A device and a method for measuring the line impedance of each node in a platform area belong to the field of communication equipment. The wiring terminal comprises a housing and a fastening device; the shell is fixedly connected to the side face of the voltage transformer and comprises a shell; a threaded hole and a plurality of perforations are arranged on the top plate of the shell; the fastening device comprises a screw; the screw is in threaded connection with the threaded hole, the upper end of the screw is fixedly connected with a baffle, and the lower end of the screw is connected with a supporting plate through a bearing; a plurality of limit posts are fixedly connected to the support plate, and the lower end of the support plate is fixedly connected with a limit telescopic rod arranged on the bottom surface inside the shell; the limit posts are in sliding fit with the corresponding perforations; the side surface of the shell is provided with a plurality of through holes for the wires and the plug-in pieces connected to the wires to pass through; a plurality of metal conducting plates are fixedly connected to the lower end face of the top plate of the shell. The invention is convenient for connecting and disassembling a plurality of wires, saves time, can effectively prevent the screw from loosening caused by the influence of external environment, and avoids the equipment from being unable to be used normally.

Description

Device and method for measuring line impedance of each node of transformer area
Technical Field
The invention relates to a device and a method for measuring the line impedance of each node of a platform area, belonging to the field of communication equipment.
Background
When measuring impedance, need take a sample voltage and electric current, consequently need use voltage transformer, voltage transformer on the market at present when using, the wiring end of its secondary winding side uses the bolt to compress tightly corresponding wire, when the wire of connection is more, need the staff screw up the bolt one by one, comparatively troublesome, and waste time, partial voltage transformer during operation exposes outdoors, operational environment is comparatively complicated, the bolt exposes and is exposed to the sun for a long time outward, probability pine takes off, influence normal use, consequently, the improvement of needs.
Disclosure of Invention
The invention aims to solve the problems in the background art and provides a device and a method for measuring the line impedance of each node of a transformer area.
The invention achieves the above purpose, adopts the following technical scheme:
The device for measuring the line impedance of each node of the transformer area comprises a voltage transformer; a wiring terminal is arranged on the secondary winding side of the voltage transformer; the wiring terminal comprises a shell and a fastening device; the shell is fixedly connected to the side face of the voltage transformer and comprises a shell; a threaded hole and a plurality of perforations are formed in the top plate of the shell; the fastening device comprises a screw; the screw is in threaded connection with the threaded hole, the upper end of the screw is fixedly connected with the baffle, and the lower end of the screw is connected with the supporting plate through the bearing; a plurality of limit posts are fixedly connected to the support plate, and the lower end of the support plate is fixedly connected with a limit telescopic rod arranged on the bottom surface inside the shell; the limit posts are in sliding fit with the corresponding perforations; the side surface of the shell is provided with a plurality of through holes for the wires and the plug-in pieces connected to the wires to pass through; a plurality of metal conducting plates are fixedly connected to the lower end face of the top plate of the shell.
A method for using a device for measuring line impedance of each node in a platform, the method comprising the following steps:
Step one: the push-pull rod is pulled upwards to drive the sliding plate to move upwards, so that the rectangular hole and the sliding groove I are on the same plane;
step two: sequentially penetrating the plug-in sheet on the guide wire through the rectangular hole and the chute I and contacting with the stop block, and then loosening the push-pull rod to enable the plug-in sheet to be sleeved on the corresponding limit column;
step three: repeating the steps to connect a predetermined number of wires;
Step four: the baffle is rotated by the tool, so that the screw rod moves upwards, the supporting plate is driven to move upwards, the inserting piece is driven to move upwards, and the copper sheet is contacted with the metal conducting plate.
Compared with the prior art, the invention has the beneficial effects that: the invention is convenient for connecting and disassembling a plurality of wires, saves time, can effectively prevent the screw from loosening caused by the influence of external environment, and avoids the equipment from being unable to be used normally.
Drawings
FIG. 1 is a front view of a device for measuring line impedance of nodes in a bay according to the present invention;
FIG. 2 is a front view of the housing of the node line impedance measuring device of the present invention for a bay;
FIG. 3 is a schematic diagram showing the location of a fastening device of the impedance measuring device for each node line of the transformer area according to the present invention;
FIG. 4 is a cross-sectional view taken along the direction A-A in FIG. 1;
FIG. 5 is a schematic diagram of the structure of a housing of the impedance measuring device for each node line of the transformer area according to the present invention;
FIG. 6 is a top view of the housing of the node line impedance measuring device of the present invention;
FIG. 7 is a schematic diagram of a movable apparatus of a device for measuring impedance of lines of nodes in a transformer area according to the present invention;
FIG. 8 is a bottom view of the connecting rod and copper sheet of the device for measuring the impedance of each node line of the transformer area according to the present invention;
FIG. 9 is a bottom view of the connector bars, copper sheets, wires and inserts of the present invention for a device for measuring the line impedance of each node of a bay;
FIG. 10 is a schematic structural view of a limiting device of a device for measuring impedance of each node line in a transformer area according to the present invention;
FIG. 11 is a top view of a stop device for a station area node line impedance measurement device according to the present invention;
FIG. 12 is a bottom view of a stop device for a station line impedance measurement device according to the present invention;
FIG. 13 is a schematic structural view of a fastening device of the impedance measuring device for each node line of the transformer area according to the present invention;
Fig. 14 is a plan view of a fastening device for a device for measuring impedance of a line at each node of a site according to the present invention.
Detailed Description
The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the invention, but not all embodiments, and all other embodiments obtained by those skilled in the art without making creative efforts based on the embodiments of the present invention are all within the protection scope of the present invention.
The first embodiment is as follows: as shown in fig. 1-14, this embodiment describes a device for measuring the impedance of each node line of a transformer area, including a voltage transformer 2; a wiring terminal is arranged on the secondary winding side of the voltage transformer 2; the terminal comprises a housing 1 and a fastening device 5; the shell 1 is fixedly connected to the side face of the voltage transformer 2, and the shell 1 comprises a shell 11; a threaded hole 19 and a plurality of perforations 18 are arranged on the top plate 13 of the shell 11; the fastening means 5 comprise a screw 54; the screw 54 is in threaded connection with the threaded hole 19, the upper end of the screw 54 is fixedly connected with a baffle plate 58, and the lower end of the screw 54 is connected with the supporting plate 52 through a bearing; a plurality of limit posts 53 are fixedly connected to the support plate 52, and a limit telescopic rod 51 arranged on the inner bottom surface of the shell 11 is fixedly connected to the lower end of the support plate 52; the limit posts 53 are in sliding fit with the corresponding perforations 18; the side surface of the shell 11 is provided with a plurality of through holes for the lead wires 7 and the plug-in pieces 6 connected to the lead wires 7 to pass through; a plurality of metal conductive plates 17 are fixedly connected to the lower end surface of the top plate 13 of the housing 11. When in use, all the limiting posts 53 can be driven to move upwards by only rotating the screw 54, so that the plug-in pieces 6 sleeved on the limiting posts 53 are communicated with the metal conductive plate 17.
The through hole on the side surface of the shell 11 comprises a sliding groove I16 in the horizontal direction and a sliding groove II 15 in the vertical direction, which form a cross shape; the plug sheet 6 is in sliding fit with the sliding groove I16, and the lead 7 is in sliding fit with the sliding groove II 15. Facilitating the sliding up and down of the wire 7.
The upper end of the shell 11 is fixedly connected with two side plates 14, and the top end of the shell 11 is also provided with two vertical slide ways 12; an annular groove is formed in the outer circular surface of the baffle plate 58, and a U-shaped baffle plate 55 in sliding fit with the annular groove is arranged in the annular groove; the U-shaped baffle 55 is in contact with the opposite faces of the two side plates 14, and the vertical ends of the U-shaped baffle 55 are in sliding fit with the corresponding slide ways 12. The U-shaped baffle 55 moves up and down along with the baffle 58 at the upper end of the screw 54, so that a sealed space is formed between the U-shaped baffle and the side plate 14, and dust is reduced.
Further comprising a movable device 3; the movable device 3 comprises a fixed cylinder 31; the fixed cylinder 31 is fixedly connected to the side wall of the shell 11, and a sliding plate 33 which is in sliding fit with the fixed cylinder 31 is arranged at the upper end of the fixed cylinder 31; a spring 32 is arranged between the sliding plate 33 and the fixed cylinder 31; the sliding plate 33 is provided with a rectangular hole 34 which is in sliding fit with the plug sheet 6; the end, far away from the shell 11, of the sliding plate 33 is fixedly connected with a push-pull rod 35, and the end, close to the shell 11, of the sliding plate 33 is fixedly connected with a connecting rod 38 in sliding fit with a sliding groove II 15; the other end of the connecting rod 38 is fixedly connected with a copper sheet 39, and the lower end of the copper sheet 39 is fixedly connected with a stop block 310. The outer side surface of the fixed barrel 31 can be stuck with labels, so that the labels are convenient to mark, and the time for workers to stick the labels on corresponding leads can be effectively reduced. When the sliding plate 33 moves upwards to the uppermost end, the sliding grooves I16 and II 15 can be shielded, so that dust is prevented from entering the shell 1. The distance between the two copper sheets 39 is smaller than the outer diameter of the plug connector 6, while the distance between the two copper sheets 39 is larger than the diameter of the limit post 53.
The lower end of the baffle plate 58 is hinged with a limiting rod 57, and the other end of the limiting rod 57 is connected with a limiting block 56 through a hinge; the upper end of the top plate 13 of the shell 11 is provided with a spiral groove 111, and the limiting block 56 is in sliding fit with the spiral groove 111.
A groove 110 communicated with the threaded hole 19 is formed in the side surface of the top plate of the shell 11, and the groove 110 is communicated with a spiral groove 111; the limiting device 4 comprises a connecting plate 41, a transmission block 42 and a screw rod 43; the center of the connecting plate 41 is provided with a plug hole 44 in sliding fit with the screw 54, the connecting plate 41 is in sliding fit with the groove 110, and the upper end of the connecting plate 41 is fixedly connected with a screw rod 43 in sliding fit with the screw groove 111; the lower end of the connecting plate 41 is fixedly connected with a transmission block 42. The transmission block 42 is located outside the housing 1.
When the distance between the upper end of the screw 54 and the top plate 13 of the housing 11 is the largest, the limiting rod 57 is in a vertical state, and at this time, the screw rod 43 is pushed into the screw groove 111 to push the limiting rod 57 against the screw groove, so that the movement of the limiting rod is prevented. After the limiting block 56 moves to the end of the spiral groove 111 close to the screw 54, the residual gap of the spiral groove 111 is filled with the spiral rod 43, so that displacement of the limiting block 56 is avoided, and further loosening of the screw 54 is avoided.
The upper end of the sliding plate 33 is provided with a sliding rail, and a sliding block 36 which is in sliding fit with the sliding rail is arranged in the sliding rail; the upper end of the sliding block 36 is fixedly connected with a supporting block 37; the support block 37 is located on the same vertical plane as the driving block 42.
The connecting rod 38 is made of an insulating material.
A method for using a device for measuring line impedance of each node in a platform, the method comprising the following steps:
Step one: the push-pull rod 35 is pulled upwards to drive the sliding plate 33 to move upwards, so that the rectangular hole 34 and the sliding groove I16 are on the same plane;
Step two: the plug sheet 6 on the lead 7 sequentially passes through the rectangular hole 34, the chute I16 and contacts with the stop block 310, and then the push-pull rod 35 is released, so that the plug sheet 6 is sleeved on the corresponding limit post 53;
Step three: repeating the above steps to connect a predetermined number of wires 7;
step four: by turning the baffle 58 by means of a tool, the screw 54 is moved upwards and the support plate 52 is moved upwards, and the plug piece 6 is moved upwards and is contacted with the metal conductive plate 17 by the copper sheet 39.
The working principle of the invention is as follows: when the device is used, the push-pull rod 35 is pulled upwards to drive the sliding plate 33 to move upwards, the spring 32 is stretched, and the sliding plate moves to the position that the rectangular hole 34 and the sliding groove I16 are on the same plane;
the inserting piece 6 on the lead 7 sequentially passes through the rectangular hole 34 and the chute I16 and is contacted with the stop block 310, after the inserting piece 6 is contacted with the stop block 310, the inserting piece 6 can be directly moved downwards to be sleeved on the limiting column 53, then the push-pull rod 35 is loosened, and under the action of the spring 32, the inserting piece 6 is driven to be sleeved on the corresponding limiting column 53 through the copper sheet 39;
Repeating the above steps to connect a predetermined number of wires 7;
The baffle plate 58 is rotated by a tool, so that the screw 54 moves upwards and drives the supporting plate 52 to move upwards, the limit post 53 and the inserting piece 6 are driven to move upwards, the connecting rod 38 above the supporting plate 52 is driven to move upwards, the sliding plate 33 is driven to move upwards together until the copper sheet 39 contacts with the metal conducting plate 17, the inserting piece 6 abuts against the copper sheet 39, and at the moment, the sliding plate 33 shields the sliding groove I16 and the sliding groove II 15 to prevent dust from entering the shell 1;
The screw 54 moves upwards and drives the baffle 58 to move upwards, and as the baffle 58 is forced to rotate, the limiting rod 57 at the lower end of the baffle 58 rotates along with the baffle 58, so that the limiting block 56 at the other end of the limiting rod 57 slides in the spiral groove 111 until the screw 54 moves to the highest point, the limiting rod 57 is in a vertical state, and drives the limiting block 56 to move to the position of the spiral groove 111, which is close to one end of the screw 54, and then pushes the supporting block 37, so that the supporting block 37 pushes the transmission block 42 to move upwards, and then drives the connecting plate 41 and the spiral plate 43 to move upwards, so that the spiral plate 43 is inserted into the spiral groove 111 and props against the side surface of the limiting block 56, and the limiting block 56 is prevented from sliding along the spiral groove 111, so that the baffle 58 and the screw 54 are limited to rotate, and the loosening is prevented;
when the worker needs to maintain, the screw 54 is moved to the lowest end, and then the supporting plate 52 is driven to move to the lowest end, and under the action of the elastic force of the spring 32, the sliding plate 33 moves downwards along with the screw, and then the copper sheet 39 is driven to move downwards, so that the copper sheet 39 pushes the inserting sheet 6 to move downwards, and the copper sheet is always sleeved on the limiting column 53, and the disorder of the conducting wires 7 is avoided.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims (6)

1. The utility model provides a district each node line impedance measuring device which characterized in that: comprises a voltage transformer (2); a wiring terminal is arranged on the secondary winding side of the voltage transformer (2); the wiring terminal comprises a shell (1) and a fastening device (5); the shell (1) is fixedly connected to the side face of the voltage transformer (2), and the shell (1) comprises a shell (11); a threaded hole (19) and a plurality of perforations (18) are arranged on the top plate (13) of the shell (11); the fastening means (5) comprises a screw (54); the screw (54) is in threaded connection with the threaded hole (19), the upper end of the screw (54) is fixedly connected with the baffle (58), and the lower end of the screw (54) is connected with the supporting plate (52) through a bearing; a plurality of limit posts (53) are fixedly connected to the support plate (52), and the lower end of the support plate (52) is fixedly connected with a limit telescopic rod (51) arranged on the inner bottom surface of the shell (11); the limit posts (53) are in sliding fit with the corresponding perforations (18); the side surface of the shell (11) is provided with a plurality of through holes for the lead wires (7) and the plug-in pieces (6) connected to the lead wires (7) to pass through; a plurality of metal conducting plates (17) are fixedly connected to the lower end face of the top plate (13) of the shell (11);
The through hole on the side surface of the shell (11) comprises a sliding chute I (16) in the horizontal direction and a sliding chute II (15) in the vertical direction, which form a cross shape; the plug-in sheet (6) is in sliding fit with the sliding chute I (16), and the lead (7) is in sliding fit with the sliding chute II (15);
Also comprises a movable device (3); the movable device (3) comprises a fixed cylinder (31); the fixed cylinder (31) is fixedly connected to the side wall of the shell (11), and a sliding plate (33) in sliding fit with the fixed cylinder (31) is arranged at the upper end of the fixed cylinder; a spring (32) is arranged between the sliding plate (33) and the fixed cylinder (31); the sliding plate (33) is provided with a rectangular hole (34) which is in sliding fit with the plug-in piece (6); one end of the sliding plate (33) far away from the shell (11) is fixedly connected with a push-pull rod (35), and one end of the sliding plate (33) close to the shell (11) is fixedly connected with a connecting rod (38) in sliding fit with the sliding groove II (15); the other end of the connecting rod (38) is fixedly connected with a copper sheet (39), and the lower end of the copper sheet (39) is fixedly connected with a stop block (310);
The lower end of the baffle plate (58) is hinged with a limiting rod (57), and the other end of the limiting rod (57) is connected with a limiting block (56) through a hinge; the upper end of the top plate (13) of the shell (11) is provided with a spiral groove (111), and the limiting block (56) is in sliding fit with the spiral groove (111);
A groove (110) communicated with the threaded hole (19) is formed in the side face of the top plate of the shell (11), and the groove (110) is communicated with the spiral groove (111);
The device also comprises a limiting device (4), wherein the limiting device (4) comprises a connecting plate (41), a transmission block (42) and a screw rod (43); the center of the connecting plate (41) is provided with a plug hole (44) which is in sliding fit with the screw rod (54), the connecting plate (41) is in sliding fit with the groove (110), and the upper end of the connecting plate (41) is fixedly connected with a screw rod (43) which is in sliding fit with the screw groove (111); the lower end of the connecting plate (41) is fixedly connected with a transmission block (42).
2. The apparatus for measuring line impedance of each node of a transformer area according to claim 1, wherein: the upper end of the shell (11) is fixedly connected with two side plates (14), and the top end of the shell (11) is also provided with two vertical slide ways (12); an annular groove is formed in the outer circular surface of the baffle (58), and a U-shaped baffle (55) in sliding fit with the annular groove is arranged in the annular groove; the U-shaped baffle plate (55) is contacted with the opposite surfaces of the two side plates (14), and the vertical end of the U-shaped baffle plate (55) is in sliding fit with the corresponding slideway (12).
3. The apparatus for measuring line impedance of each node in a transformer area according to claim 2, wherein: when the distance between the upper end of the screw rod (54) and the top plate (13) of the shell (11) is the largest, the limiting rod (57) is in a vertical state, and at the moment, the screw rod (43) is pushed into the screw groove (111) to prop up the limiting rod (57) and prevent the limiting rod from moving.
4. A station area node line impedance measuring apparatus according to claim 3, wherein: the upper end of the sliding plate (33) is provided with a sliding rail, and a sliding block (36) which is in sliding fit with the sliding rail is arranged in the sliding rail; the upper end of the sliding block (36) is fixedly connected with a supporting block (37); the supporting block (37) and the transmission block (42) are positioned on the same vertical plane.
5. The apparatus for measuring line impedance of nodes in a cell as defined in claim 4, wherein: the connecting rod (38) is made of an insulating material.
6. The method for using the impedance measuring device for each node line of the transformer area according to claim 5, wherein: the using method comprises the following steps:
Step one: the push-pull rod (35) is pulled upwards to drive the sliding plate (33) to move upwards, so that the rectangular hole (34) and the sliding groove I (16) are on the same plane;
Step two: sequentially penetrating the plug-in sheet (6) on the lead (7) through the rectangular hole (34) and the chute I (16) and contacting with the stop block (310), and then loosening the push-pull rod (35) to enable the plug-in sheet (6) to be sleeved on the corresponding limit column (53);
step three: repeating the above steps to connect a predetermined number of wires (7);
step four: the baffle plate (58) is rotated by a tool, so that the screw rod (54) moves upwards, the supporting plate (52) is driven to move upwards, the inserting piece (6) is driven to move upwards, and the inserting piece is contacted with the metal conducting plate (17) through the copper sheet (39).
CN202311583571.8A 2023-11-24 2023-11-24 Device and method for measuring line impedance of each node of transformer area Active CN117607543B (en)

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Application Number Priority Date Filing Date Title
CN202311583571.8A CN117607543B (en) 2023-11-24 2023-11-24 Device and method for measuring line impedance of each node of transformer area

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Application Number Priority Date Filing Date Title
CN202311583571.8A CN117607543B (en) 2023-11-24 2023-11-24 Device and method for measuring line impedance of each node of transformer area

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CN117607543B true CN117607543B (en) 2024-04-30

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Publication number Priority date Publication date Assignee Title
CN117849416B (en) * 2024-03-07 2024-05-14 国网黑龙江省电力有限公司 Binding post for mounting ammeter on-line diagnosis equipment and using method thereof

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CN211279606U (en) * 2019-12-09 2020-08-18 惠州市田合电子有限公司 Injection molding device for production of wiring terminal shell
DE212020000568U1 (en) * 2020-10-16 2021-11-24 Suzhou Chaoshuofan Plastic Products Co., Ltd. Multifunctional plastic performance tester
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CN113848396A (en) * 2021-09-26 2021-12-28 哈尔滨理工大学 Device and method for measuring charge of insulating surface of oiled paper
CN216289302U (en) * 2021-11-30 2022-04-12 江苏弘策机电科技有限公司 Connecting device for wiring terminal
CN115473126A (en) * 2022-07-25 2022-12-13 赵政满 Insulation support structure for 252kV high-voltage switch bus and use method thereof
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