CN113939136B - Warning device for analysis of transmission line measurement data and use method - Google Patents
Warning device for analysis of transmission line measurement data and use method Download PDFInfo
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- CN113939136B CN113939136B CN202111198000.3A CN202111198000A CN113939136B CN 113939136 B CN113939136 B CN 113939136B CN 202111198000 A CN202111198000 A CN 202111198000A CN 113939136 B CN113939136 B CN 113939136B
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/14—Mounting supporting structure in casing or on frame or rack
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/085—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution lines, e.g. overhead
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/18—Construction of rack or frame
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- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention discloses a warning device for analysis of transmission line measurement data and a use method thereof, the warning device comprises a mounting mechanism, the mounting mechanism comprises a fixing frame, a supporting plate is fixedly connected to an inner cavity of the fixing frame, a device body is fixedly connected to the top of the supporting plate, movable grooves are formed in four corners of the top of the supporting plate, a clamping mechanism is fixedly connected to the left side of the mounting mechanism, the clamping mechanism comprises a fixed box, a driving motor is fixedly connected to the bottom of the inner cavity of the fixed box, and a threaded rod is fixedly connected to an output shaft of the driving motor. The device body is supported by the support plate, so that the device body can be stably placed so as to be clamped and fixed, and the drive motor, the threaded rod and the threaded sleeve are arranged and used for driving the connecting rod, the clamping plate and the protective strip to move, so that the device body is clamped by the clamping plate and the protective strip, and the device body is firmly fixed.
Description
Technical Field
The invention relates to the technical field of transmission line measurement, in particular to a warning device for analysis of transmission line measurement data and a use method thereof.
Background
Along with the increase of national economy at the development speed of nearly 10% each year, the power system serving as a leading member of national economy is increasing at an extra-normal speed in recent years, large-scale power substations such as spring bamboo shoots after rain, the technology development, upgrading and updating of power substation equipment are accelerated, and particularly, the aspects of computer technology, power electronic technology and communication technology are increasingly integrated into the core of power substation control equipment, along with the development and perfection of a power grid structure, the construction of a power line is greatly developed, but due to the particularity of the geographic position and environmental conditions of the power line, the tower points are more, the face is wide, the line length is long, the power line is exposed in the field all the year round, besides being affected by severe natural weather, the line is tripped due to the human factors caused by the damage of external force, the probability of forced outage accidents of the line is in an ascending trend, great importance of people cannot be not be brought out, and the power transmission line is required to be observed and recorded at different times in order to ensure the normal power supply of the power transmission line.
Because the prior power transmission line measurement data analysis warning device needs to be considered firmly fixed and convenient for later maintenance during installation, a great deal of time is consumed to consider the installation mode during the installation process, the installation efficiency is low, the effect of convenient maintenance is not obvious enough, the warning device for power transmission line measurement data analysis and the use method thereof are provided for solving the problems,
disclosure of Invention
The invention aims to provide a warning device for analysis of transmission line measurement data and a use method thereof, which have the advantage of convenience in maintenance, and solve the problems that the conventional warning device for analysis of transmission line measurement data needs to be firmly fixed and is convenient for later maintenance when being installed, so that a great amount of time is consumed to consider the installation mode in the installation process, the installation efficiency is low, and the effect of convenience in maintenance is not obvious enough.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a warning device and application method for transmission line measured data analysis, includes the installation mechanism, the installation mechanism includes the mount, the inner chamber fixedly connected with backup pad of mount, the top fixedly connected with device body of backup pad, movable groove has all been seted up at the four corners at backup pad top, the left side fixedly connected fixture of installation mechanism, fixture includes the fixed box, the bottom fixedly connected with driving motor of fixed box inner chamber, driving motor's output shaft fixedly connected with threaded rod, the right-hand member of threaded rod runs through the inner chamber to the mount and through bearing and the inner wall swing joint of mount, the equal threaded connection in both sides on threaded rod surface has the thread bush, the front and the equal fixedly connected with connecting rod in back of thread bush, the other end of connecting rod runs through the movable groove and extends to the top of backup pad and fixedly connected with grip block.
Preferably, four corners of the bottom of the device body are fixedly connected with positioning columns, the front ends and the rear ends of two sides of the top of the supporting plate are provided with limiting holes, and the bottom of the positioning columns extends to the inner cavity of the limiting holes and is movably connected with the inner cavity of the limiting holes.
Preferably, two opposite sides of the clamping plate are provided with protective strips, and the number of the protective strips is six and the protective strips are symmetrically distributed on one side of the clamping plate.
Preferably, limit grooves are formed in four corners of the bottom of the inner cavity of the fixing frame, the inner cavity of the limit groove is movably connected with a limit block, and the top of the limit block is fixedly connected with the connecting rod.
Preferably, the back of mount and fixed box all fixedly connected with mounting panel, the mounting hole has all been seted up to upper end and the lower extreme on mounting panel surface.
Preferably, the left side intercommunication of fixed case has the ventilation pipe, the left side of ventilation pipe inner chamber is provided with the filter screen, and filter screen and ventilation pipe cooperation.
Preferably, the right side of the inner cavity of the ventilation pipe is fixedly connected with a direct current fan through a bracket, and the front surface and the back surface of the fixed box are both provided with air inlet grooves.
Preferably, the number of the air inlet grooves is four, and the air inlet grooves are symmetrically distributed on the front surface and the back surface of the fixed box in a group.
Preferably, the front side of the device body is provided with a first interface and a second interface respectively, and the front side of the device body and the lower part of the second interface are provided with a power interface.
Preferably, the application method comprises the following steps:
A. firstly, fixing a fixing frame at a required position through a mounting plate and a mounting hole, then, when the device body is mounted, placing the device body at the top of a supporting plate and enabling the bottom of a positioning column to be inserted into an inner cavity of a limiting hole, limiting the device body, starting a driving motor through an external controller, driving a threaded rod to rotate through an output shaft of the driving motor, enabling the threaded rod to rotate in an inner cavity of a threaded sleeve, enabling the threaded sleeve to drive a connecting rod to move through the threaded rod, driving a clamping plate to move through the connecting rod, driving a protective strip to clamp and fix the device body through the clamping plate, and avoiding the situation that the device body is damaged due to overlarge clamping force caused by direct contact of the clamping plate and the device body through the mounting plate;
B. in addition, the connecting rod drives the limiting block to move in the inner cavity of the limiting groove while moving, so that the connecting rod is limited, the connecting rod is kept to stably move, when the device body is required to be disassembled and overhauled, the driving motor is reversely rotated through the external controller, so that the threaded sleeve drives the connecting rod to move to the far side, the clamping plate is driven to move through the connecting rod, further the clamping and fixing of the device body are relieved, and the device body can be taken out from the top of the supporting plate for overhauling and maintenance;
C. when the heat dissipation is needed to be carried out in the fixed box, the direct current fan is started through the external controller, after the direct current fan is started, air in the fixed box can be discharged, so that negative pressure is formed in the fixed box, at the moment, the outside air enters the fixed box through the air inlet groove and cools mechanical elements in the fixed box, and therefore the condition that the mechanical elements in the fixed box cannot normally operate due to the fact that the temperature in the fixed box is too high is avoided;
D. when the data are detected and transmitted, the external power line is connected with the power interface in an inserting mode, so that the device body is electrified to operate, then the external data line is connected with the second interface in an inserting mode, and the external signal receiving line is connected with the first interface in an inserting mode, and then analysis and detection can be conducted on the measured data.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention is used for supporting the device body through the supporting plate so that the device body can be stably placed for clamping and fixing the device body, and the driving motor, the threaded rod and the threaded sleeve are arranged for driving the connecting rod, the clamping plate and the protective strip to move so as to clamp the device body through the clamping plate and the protective strip, so that the device body is firmly fixed.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic diagram of a front view of a device body according to the present invention;
FIG. 3 is a schematic cross-sectional view of the holder and the case of the present invention;
FIG. 4 is a schematic view showing the front view of the support plate of the present invention;
fig. 5 is a schematic view of a partial sectional structure of a ventilation pipe according to the present invention.
In the figure: 100. a mounting mechanism; 101. a fixing frame; 102. a support plate; 103. a device body; 103a, a first interface; 103b, a second interface; 103c, a power interface; 104. a movable groove; 105. positioning columns; 106. a limiting hole; 107. a mounting plate; 200. a clamping mechanism; 201. a fixed box; 202. a driving motor; 203. a threaded rod; 204. a thread sleeve; 205. a connecting rod; 206. a clamping plate; 207. a guard bar; 208. a limit groove; 209. a limiting block; 210. a ventilation pipe; 211. a filter screen; 212. a DC fan; 213. an air inlet groove.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-5, an alarming device for analyzing measurement data of a power transmission line and a using method thereof, the mounting mechanism 100 comprises a fixing frame 101, an inner cavity of the fixing frame 101 is fixedly connected with a supporting plate 102, the top of the supporting plate 102 is fixedly connected with a device body 103, four corners of the top of the supporting plate 102 are respectively provided with a movable groove 104, the left side of the mounting mechanism 100 is fixedly connected with a clamping mechanism 200, the clamping mechanism 200 comprises a fixed box 201, the bottom of the inner cavity of the fixed box 201 is fixedly connected with a driving motor 202, an output shaft of the driving motor 202 is fixedly connected with a threaded rod 203, the right end of the threaded rod 203 penetrates through the inner cavity of the fixing frame 101 and is movably connected with the inner wall of the fixing frame 101 through a bearing, both sides of the surface of the threaded rod 203 are respectively connected with a thread bush 204, the front and the back of the thread bush 204 are respectively fixedly connected with a connecting rod 205, the other end of the connecting rod 205 penetrates through the movable groove 104 and extends to the upper part of the supporting plate 102 and is fixedly connected with the clamping plate 206, the supporting plate 102 is used for supporting the device body 103, so that the device body 103 can be stably placed for clamping and fixing the device body 103, the driving motor 202, the threaded rod 203 and the threaded sleeve 204 are arranged for driving the connecting rod 205, the clamping plate 206 and the protective strip 207 to move, so that the device body 103 is firmly fixed through the clamping plate 206 and the protective strip 207, in addition, the situation that the clamping force of the clamping plate 206 is overlarge to cause clamping damage to the device body 103 can be avoided through the protective strip 207, the service life of the device body 103 is prolonged, the problem that the conventional transmission line measurement data analysis warning device needs to be considered to be firmly fixed and is convenient for later maintenance during installation is solved, therefore, a great deal of time is required to be spent in the installation process to consider the installation mode, and the installation efficiency is low, and the effect of convenient maintenance is not obvious enough.
Specifically, the four corners of device body 103 bottom all fixedly connected with reference column 105, spacing hole 106 has all been seted up to front end and the rear end of backup pad 102 top both sides, and the bottom of reference column 105 extends to spacing hole 106's inner chamber and with spacing hole 106's inner chamber swing joint, through setting up reference column 105 and spacing hole 106 for it is spacing to device body 103, and then for the fixed creation condition of follow-up centre gripping to device body 103.
Specifically, the opposite sides of the two clamping plates 206 are provided with six guard bars 207, and the guard bars 207 are symmetrically distributed on one side of the clamping plates 206.
Specifically, limiting grooves 208 are formed in four corners of the bottom of the inner cavity of the fixing frame 101, limiting blocks 209 are movably connected to the inner cavity of the limiting grooves 208, the top of each limiting block 209 is fixedly connected with the connecting rod 205, and the limiting grooves 208 and the limiting blocks 209 are arranged to limit the connecting rod 205 so that the connecting rod 205 can stably move.
Specifically, the fixing frame 101 and the back of the fixing box 201 are fixedly connected with the mounting plate 107, and the upper end and the lower end of the surface of the mounting plate 107 are provided with mounting holes, so that the fixing frame 101 and the fixing box 201 are fixedly mounted with objects through the mounting plate 107 and the mounting holes, thereby being beneficial to the subsequent mounting of the device body 103.
Specifically, the left side of the fixed box 201 is communicated with a ventilation pipe 210, a filter screen 211 is arranged on the left side of the inner cavity of the ventilation pipe 210, and the filter screen 211 is matched with the ventilation pipe 210.
Specifically, the right side of ventilation pipe 210 inner chamber is through support fixedly connected with direct current fan 212, and air inlet slot 213 has all been seted up to the front and the back of fixed case 201, through setting up ventilation pipe 210, filter screen 211, direct current fan 212 and air inlet slot 213 for dispel the heat to the inside of fixed case 201, avoid the inside of fixed case 201 to appear unable normal operation's condition because of the too high mechanical element that leads to its inside of temperature, possess simultaneously and carry out dirt-proof advantage to ventilation pipe 210, avoid outside dust to get into the inside of fixed case 201 through ventilation pipe 210.
Specifically, the number of the air inlet slots 213 is four, and two groups of air inlet slots are symmetrically distributed on the front and the back of the fixed box 201.
Specifically, the front two sides of the device body 103 are respectively provided with a first interface 103a and a second interface 103b, the front of the device body 103 is provided with a power interface 103c below the second interface 103b, the device body 103 can be connected with an external signal line through the first interface 103a, and then the device body 103 is convenient to receive data, the second interface 103b is arranged and is used for transmitting the data, so that workers can observe and record the data of the power transmission line conveniently, and the power interface 103c is arranged and is used for being connected with an external power line, so that the power interface 103c can be electrified.
Specifically, the application method comprises the following steps:
A. firstly, fixing a fixing frame 101 at a required position through a mounting plate 107 and a mounting hole, then when the device body 103 is mounted, placing the device body 103 at the top of a supporting plate 102 and enabling the bottom of a positioning column 105 to be inserted into an inner cavity of a limiting hole 106, limiting the device body 103, starting a driving motor 202 through a peripheral controller, driving a threaded rod 203 to rotate through an output shaft of the driving motor 202, driving a threaded sleeve 204 to drive a connecting rod 205 to move through the rotation of the threaded rod 203 in the inner cavity of the threaded sleeve 204, driving a clamping plate 206 to move through the connecting rod 205, driving a protective strip 207 to clamp and fix the device body 103 through the clamping plate 206, and avoiding the situation that the device body 103 is damaged due to overlarge clamping force caused by direct contact between the clamping plate 206 and the device body 103 through the mounting plate 107;
B. in addition, the connecting rod 205 drives the limiting block 209 to move in the inner cavity of the limiting groove 208 while moving, so as to limit the connecting rod 205, so that the connecting rod 205 keeps stably moving, when the device body 103 needs to be disassembled and overhauled, the driving motor 202 is reversely rotated through the external controller, so that the threaded sleeve 204 drives the connecting rod 205 to move to the far side, the clamping plate 206 is driven to move through the connecting rod 205, and further the clamping and fixing of the device body 103 are released, so that the device body 103 can be taken out from the top of the supporting plate 102 for overhauling and maintenance;
C. when the heat dissipation needs to be performed on the inside of the fixed box 201, the direct current fan 212 is started by the external controller, after the direct current fan 212 is started, air in the fixed box 201 can be discharged, so that negative pressure is formed in the fixed box 201, at the moment, the outside air enters the inside of the fixed box 201 through the air inlet groove 213 and cools mechanical elements in the fixed box 201, and therefore the condition that the mechanical elements in the fixed box 201 cannot normally operate due to the fact that the temperature in the fixed box 201 is too high is avoided;
D. when the data is detected and transmitted, the external power line is firstly plugged with the power interface 103c, so that the device body 103 is electrified for operation, then the external data line is plugged with the second interface 103b, and the external signal receiving line is plugged with the first interface 103a, so that the measured data can be analyzed and detected.
The standard parts used in the application file can be purchased from the market, and can be customized according to the description of the specification and the drawing, the specific connection modes of the parts adopt conventional means such as mature bolts, rivets and welding in the prior art, the machines, the parts and the equipment adopt conventional models in the prior art, the control mode is controlled automatically by a controller, a control circuit of the controller can be realized by simple programming of a person skilled in the art, the control method belongs to common knowledge in the art, and the application file is mainly used for protecting a mechanical device, so the control mode and circuit connection are not explained in detail.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (1)
1. The utility model provides a transmission line measurement data warning device for analysis, includes installation mechanism (100), its characterized in that: the mounting mechanism (100) comprises a fixing frame (101), a supporting plate (102) is fixedly connected to an inner cavity of the fixing frame (101), a device body (103) is fixedly connected to the top of the supporting plate (102), movable grooves (104) are formed in four corners of the top of the supporting plate (102), a clamping mechanism (200) is fixedly connected to the left side of the mounting mechanism (100), the clamping mechanism (200) comprises a fixed box (201), a driving motor (202) is fixedly connected to the bottom of the inner cavity of the fixed box (201), a threaded rod (203) is fixedly connected to an output shaft of the driving motor (202), the right end of the threaded rod (203) penetrates through the inner cavity of the fixing frame (101) and is movably connected with the inner wall of the fixing frame (101) through a bearing, threaded sleeves (204) are connected to two sides of the surface of the threaded rod (203) in a threaded mode, connecting rods (205) are fixedly connected to the front side and the back side of the threaded sleeves (204), and the other ends of the connecting rods (205) penetrate through the movable grooves (104) and extend to the upper side of the supporting plate (102) and are fixedly connected with clamping plates (206);
the four corners of the bottom of the device body (103) are fixedly connected with positioning columns (105), the front ends and the rear ends of the two sides of the top of the supporting plate (102) are provided with limiting holes (106), and the bottom of the positioning columns (105) extends to the inner cavity of the limiting holes (106) and is movably connected with the inner cavity of the limiting holes (106);
the two opposite sides of the clamping plates (206) are provided with protective strips (207), and the number of the protective strips (207) is six and the protective strips are symmetrically distributed on one side of the clamping plates (206);
limiting grooves (208) are formed in four corners of the bottom of the inner cavity of the fixing frame (101), limiting blocks (209) are movably connected to the inner cavity of the limiting grooves (208), and the tops of the limiting blocks (209) are fixedly connected with the connecting rods (205);
the back surfaces of the fixing frame (101) and the fixing box (201) are fixedly connected with mounting plates (107), and mounting holes are formed in the upper end and the lower end of the surfaces of the mounting plates (107);
the left side of the fixed box (201) is communicated with a ventilation pipe (210), a filter screen (211) is arranged on the left side of an inner cavity of the ventilation pipe (210), and the filter screen (211) is matched with the ventilation pipe (210);
the right side of the inner cavity of the ventilation pipe (210) is fixedly connected with a direct current fan (212) through a bracket, and the front and the back of the fixed box (201) are both provided with air inlet grooves (213);
the number of the air inlet grooves (213) is four, and the air inlet grooves are symmetrically distributed on the front surface and the back surface of the fixed box (201) in pairs;
a first interface (103 a) and a second interface (103 b) are respectively arranged on two sides of the front surface of the device body (103), and a power interface (103 c) is arranged on the front surface of the device body (103) and below the second interface (103 b);
the application method comprises the following steps:
A. firstly, fixing a fixing frame (101) at a required position through a mounting plate (107) and a mounting hole, then when a device body (103) is mounted, placing the device body (103) at the top of a supporting plate (102) and enabling the bottom of a positioning column (105) to be inserted into an inner cavity of a limiting hole (106), limiting the device body (103), starting a driving motor (202) through an external controller, driving a threaded rod (203) to rotate through an output shaft of the driving motor (202), enabling the threaded rod (203) to rotate in an inner cavity of a threaded sleeve (204) through the threaded rod (203), enabling the threaded sleeve (204) to drive a connecting rod (205) to move, driving a clamping plate (206) to move through the connecting rod (205), and enabling the clamping plate (206) to clamp and fix the device body (103), and avoiding the situation that the clamping plate (206) is directly contacted with the device body (103) to cause damage due to overlarge clamping force through the mounting plate (107);
B. in addition, the connecting rod (205) drives the limiting block (209) to move in the inner cavity of the limiting groove (208) while moving, so that the connecting rod (205) is limited, the connecting rod (205) is kept to move stably, when the device body (103) needs to be disassembled and overhauled, the driving motor (202) is reversely rotated through the external controller, so that the threaded sleeve (204) drives the connecting rod (205) to move towards the far side, the clamping plate (206) is driven to move through the connecting rod (205), and further the clamping and fixing of the device body (103) are released, so that the device body (103) can be taken out from the top of the supporting plate (102) for overhauling and maintenance;
C. when the inside of the fixed box (201) needs to be cooled, the direct current fan (212) is started through the external controller, and after the direct current fan (212) is started, air in the fixed box (201) can be discharged, so that negative pressure is formed in the fixed box (201), at the moment, the outside air enters the inside of the fixed box (201) through the air inlet groove (213) and cools mechanical elements in the fixed box (201), and the condition that the mechanical elements in the fixed box (201) cannot normally operate due to the fact that the temperature in the fixed box (201) is too high is avoided;
D. when the data are detected and transmitted, firstly, an external power line is connected with a power interface (103 c) in an inserting mode, so that the device body (103) is electrified to operate, then, an external data line is connected with a second interface (103 b) in an inserting mode, and when an external signal receiving line is connected with a first interface (103 a) in an inserting mode, analysis and detection can be carried out on the measured data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111198000.3A CN113939136B (en) | 2021-10-14 | 2021-10-14 | Warning device for analysis of transmission line measurement data and use method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111198000.3A CN113939136B (en) | 2021-10-14 | 2021-10-14 | Warning device for analysis of transmission line measurement data and use method |
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| CN113939136A CN113939136A (en) | 2022-01-14 |
| CN113939136B true CN113939136B (en) | 2023-07-11 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209345474U (en) * | 2018-11-01 | 2019-09-03 | 湖南金通仪表科技有限公司 | A kind of fixed device of electric instrument |
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| CN208061788U (en) * | 2018-02-01 | 2018-11-06 | 江西明伟电子有限公司 | A kind of suspension type transformer being easily installed |
| CN210985869U (en) * | 2019-11-21 | 2020-07-10 | 叶志勇 | Variable frequency motor heat abstractor |
| CN212307409U (en) * | 2020-05-20 | 2021-01-08 | 罗丽 | Clamping device of flat-panel display |
| CN213751979U (en) * | 2020-12-31 | 2021-07-20 | 苏州毅创芯电子科技有限公司 | Control module for music playing |
| CN214100390U (en) * | 2021-01-21 | 2021-08-31 | 罗斌 | Relay protection device for electric engineering transmission line |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN209345474U (en) * | 2018-11-01 | 2019-09-03 | 湖南金通仪表科技有限公司 | A kind of fixed device of electric instrument |
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