CN113311213A - High-voltage cable grounding current detection device based on visualization system - Google Patents
High-voltage cable grounding current detection device based on visualization system Download PDFInfo
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- CN113311213A CN113311213A CN202110400603.0A CN202110400603A CN113311213A CN 113311213 A CN113311213 A CN 113311213A CN 202110400603 A CN202110400603 A CN 202110400603A CN 113311213 A CN113311213 A CN 113311213A
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- 238000001514 detection method Methods 0.000 title claims abstract description 40
- 238000012800 visualization Methods 0.000 title claims abstract description 23
- 238000005070 sampling Methods 0.000 claims abstract description 14
- 238000001816 cooling Methods 0.000 claims abstract description 7
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- 238000012544 monitoring process Methods 0.000 claims description 10
- 239000004065 semiconductor Substances 0.000 claims description 9
- 238000005057 refrigeration Methods 0.000 claims description 8
- 238000005286 illumination Methods 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 230000000977 initiatory effect Effects 0.000 claims description 2
- 230000000007 visual effect Effects 0.000 claims description 2
- 230000001680 brushing effect Effects 0.000 claims 2
- 230000017525 heat dissipation Effects 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 abstract description 6
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/0092—Arrangements for measuring currents or voltages or for indicating presence or sign thereof measuring current only
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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
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/52—Testing for short-circuits, leakage current or ground faults
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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
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/58—Testing of lines, cables or conductors
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
- H02S40/10—Cleaning arrangements
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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
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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Abstract
The invention discloses a high-voltage cable grounding current detection device based on a visualization system, which comprises a grounding box, wherein a rotating mechanism is arranged on the outer wall of the top of the grounding box, a cooling mechanism is arranged on the outer wall of the bottom of the grounding box, a high-frequency sampling unit is arranged in the grounding box, grounding wires distributed at equal intervals are arranged on the outer wall of the bottom of the grounding box, the other end of each grounding wire is electrically connected with a cable terminal, the rotating mechanism comprises a rotating shaft which is rotatably connected to the outer wall of the top of the grounding box, and an installation plate is arranged on the outer wall of the top of the rotating shaft. According to the solar energy collecting device, the solar cell panel is arranged, external solar energy can be converted into electric energy, the electric energy is stored in the storage battery, the conversion angle of the solar cell panel is achieved, the solar energy utilization efficiency can be further improved by matching with the electric telescopic rod, CT energy taking is not needed, the starting current of the device is not required, and the data collecting module can continuously and stably operate all day long no matter the current state of the cable.
Description
Technical Field
The invention relates to the technical field of power supply equipment, in particular to a high-voltage cable grounding current detection device based on a visualization system.
Background
The grounding current of the metal sheath of the high-voltage cable is one of important parameters for representing the external insulation condition of the high-voltage cable. The main factors causing the abnormal current value of the cable grounding include external force damage, wrong connection of a cross interconnection system, grounding wire theft and the like. The abnormal grounding current value easily causes the local temperature rise of the cable, accelerates the insulation aging of the cable, influences the current-carrying capacity of the cable, increases the running loss of a line, and can cause the power failure of the high-voltage cable due to the single-phase grounding fault in severe cases. Therefore, the monitoring of the grounding current of the metal sheath of the high-voltage cable is of great significance.
At present, with the rapid development of the scale and customization degree of a power grid, a cable line is widely applied to power grid construction. The increase of the circulation current of the metal sheath of the cable can cause the heating of the cable and even the insulation breakdown, and the live detection of the grounding current of the high-voltage cable is an important means for finding the defects of the cable. High tension cable terminal shaft tower grounding box mounted position is higher, and the artifical tower detection ground current mode of stepping on that currently adopts, the safe risk is high and efficiency is lower, and the safe distance of individual shaft tower is not enough in addition and can't detect, consequently urgently needs a high tension cable ground current detection device based on visual system to solve above-mentioned problem.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and the high-voltage cable grounding current detection device based on the visualization system can effectively solve the problems in the background art.
In order to achieve the purpose, the invention adopts the following technical scheme:
a high-voltage cable grounding current detection device based on a visualization system comprises a grounding box, wherein the outer wall of the top of the grounding box is provided with a rotating mechanism, the outer wall of the bottom of the grounding box is provided with a cooling mechanism, a high-frequency sampling unit is arranged in the grounding box, grounding wires distributed at equal intervals are arranged on the outer wall of the bottom of the grounding box, the other end of each grounding wire is electrically connected with a cable terminal, the rotating mechanism comprises a rotating shaft which is rotatably connected with the outer wall of the top of the grounding box, a mounting plate is arranged on the outer wall of the top of the rotating shaft, an energy-saving mechanism for converting solar energy is arranged on the top of the mounting plate, the energy-saving mechanism comprises a supporting rod fixed on one side of the outer wall of the top of the mounting plate, an electric telescopic rod is hinged on the other side of the outer wall of the top of the mounting plate, the electric telescopic rod and the outer wall of the top of the supporting rod are hinged to form a same fixed plate, a solar cell panel is arranged on the outer wall of the top of the fixed plate, sliding grooves are formed on the outer walls at two ends of the fixed plate, the inner walls of the two sides of the sliding groove are rotatably connected with the same screw rod, and the top of the fixing plate is provided with a cleaning mechanism.
Preferably, clean mechanism includes and rotates the sliding block at lead screw circumference outer wall through the screw thread, and two sliding block top outer walls install same brush hair board, brush hair board bottom outer wall and solar cell panel top outer wall sliding connection, and waterproof motor is all installed at fixed plate one side outer wall both ends, and waterproof motor output shaft passes through bolt and lead screw one side outer wall fixed connection, and light sensor is installed to fixed plate top outer wall one side.
Preferably, driven gear has been cup jointed to rotation axis circumference outer wall bottom, and ground connection box top inner wall one side has seted up the rectangular channel, the motor is installed to the top inner wall of rectangular channel, the driving gear has been cup jointed to motor circumference outer wall bottom, driving gear and driven gear mesh mutually, the ring channel has been seted up to ground connection box top outer wall, ring channel inner wall sliding connection has the spacing round bar of equidistance distribution, spacing round bar top outer wall and mounting panel bottom outer wall fixed connection, the inside high frequency acquisition unit that is provided with of ground connection box, and the data acquisition unit is used for monitoring high tension cable's ground current, the high frequency acquisition unit includes load current rogowski coil, ground current rogowski coil and current temperature detection sensor.
Preferably, the opening has been seted up to ground connection case one end outer wall, and the open-ended both sides inner wall all articulates there is the door plant, and electronic trick lock is installed at one of them door plant one end outer wall top, and the handle is installed to door plant one end outer wall, and the circumference outer wall of handle has cup jointed the antiskid cover, and the antiskid cover uses rubber materials to make.
Preferably, cooling mechanism includes four fixed bolsters through the bolt fastening in ground connection bottom of the case outer wall four corners respectively, and same refrigerating mechanism is installed to the relative one side outer wall of fixed bolster, and refrigerating mechanism is inside to include by the aspiration pump, and the outlet duct is installed in aspiration pump output, and the outlet duct other end extends to the inside of ground connection case.
Preferably, the transmission line that the equidistance distributes is installed to ground connection bottom of the case portion outer wall, and the same server is installed to the transmission line other end, and the server includes memory and display, and load current rogowski coil is used for gathering the load current of cable body, and ground current rogowski coil is used for gathering the ground current of cable, and current temperature detection sensor is used for monitoring the real-time temperature of cable tail pipe, and load current rogowski coil, ground current rogowski coil and current temperature detection sensor are connected with the input of high frequency acquisition unit, the signal conversion of load current, ground current and real-time temperature that the high frequency acquisition unit will gather is the digital quantity signal, the output and the controller input of high frequency acquisition unit are connected, the controller is responsible for triggering the sampling, initiates data transmission and the data arrangement that gathers.
Preferably, water storage housing is installed to mounting panel top outer wall, and water storage housing installs the suction pump in one side inner wall, and the outlet pipe is installed to the output of suction pump, and the spray pipe is installed to the outlet pipe other end, and the water spout that the equidistance distributes is installed to spray pipe bottom outer wall, and the spray pipe is located solar cell panel top, and load current rogowski coil is three-phase load current monitoring rogowski coil, ground current rogowski coil is three-phase ground current rogowski coil, current temperature detects the sensor for three-phase current temperature and detects the sensor, overcomes phase error, and high frequency sampling unit still includes the timer, the output and the controller of timer are connected, the timer provides time service for the controller, guarantees that sampling frequency and time are accurate.
Preferably, the display, the electric telescopic rod, the electronic coded lock, the waterproof motor and the motor are all connected with a switch through wires, and the switch is electrically connected with the signal input end of the controller through a signal line.
Preferably, the refrigerating mechanism comprises semiconductor refrigerating pieces distributed equidistantly, the semiconductor refrigerating pieces are located below the refrigerating mechanism, radiating fins distributed equidistantly are mounted on the outer wall of the bottom of each semiconductor refrigerating piece, cushion rubber pads are mounted on the outer wall of the bottom of the fixing support, and arc-shaped convex blocks distributed equidistantly are mounted on the outer wall of the bottom of each cushion rubber pad.
Preferably, the battery is installed to ground connection case one side inner wall, and solar cell panel is connected with the MPPT treater through the wire, and the MPPT treater passes through wire and battery electric connection.
Compared with the prior art, the invention has the beneficial effects that:
1. through being provided with solar cell panel, can be with external solar energy transformation electric energy, and store the electric energy in the battery, and be provided with illumination sensor on the fixed plate, can detect illumination intensity, the motor passes through the rotation axis rotation on the driving gear drives driven gear, solar cell panel's conversion angle has been realized, cooperation electric telescopic handle can further improve solar energy utilization efficiency, and can get without CT, do not have the requirement to the starting current of equipment, no matter the current status of cable, data acquisition module homoenergetic lasts steadily in all weather.
2. Through being provided with waterproof motor, lead screw and sliding block, can drive the brush hair board and remove, realized the surface cleaning to solar cell panel, and the water spout of the spray pipe below on the outlet pipe can spray water solar cell panel surface, has realized abluent abundant, has guaranteed the conversion effect to the sunlight.
3. The Rogowski coil without the iron core is used for detecting the current state in the cable, the defects that the iron core is easy to rust and short in service life are overcome, the monitoring device is light in weight, the monitoring device is easy to install and can be directly wound on the cable, the Rogowski coil does not have the problem of magnetic saturation in the process of detecting the current, and therefore the measuring range is larger and phase errors do not exist.
Drawings
Fig. 1 is a schematic diagram of a high-voltage cable ground current detection device based on a visualization system according to the present invention;
fig. 2 is a schematic structural diagram of a main view of the high-voltage cable ground current detection device based on the visualization system according to the present invention;
fig. 3 is a schematic diagram of a local enlarged structure of the high-voltage cable ground current detection device based on the visualization system according to the present invention;
fig. 4 is a schematic side view of the high-voltage cable ground current detection device based on the visualization system according to the present invention;
fig. 5 is a schematic view of a local structure of a grounding box of the high-voltage cable grounding current detection device based on the visualization system according to the present invention;
fig. 6 is a schematic diagram of a high-frequency sampling unit of the high-voltage cable ground current detection device based on the visualization system according to the present invention;
fig. 7 is a schematic circuit diagram of the high-voltage cable ground current detection device based on the visualization system according to the present invention.
In the figure: 1. a cable termination; 2. a ground line; 3. fixing a bracket; 4. a refrigeration mechanism; 5. an air outlet pipe; 6. a door panel; 7. a ground tank; 8. a water outlet pipe; 9. a display; 10. an electric telescopic rod; 11. mounting a plate; 12. a water storage housing; 13. a solar panel; 14. an illumination sensor; 15. an electronic combination lock; 16. a fixing plate; 17. a screw rod; 18. a support bar; 19. a waterproof motor; 20. a water spray pipe; 21. a bristle plate; 22. a transmission line; 23. a server; 24. a limiting round rod; 25. a rotating shaft; 26. a driven gear; 27. an electric motor; 28. and a slider.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and in the present invention, unless explicitly specified or limited otherwise, the terms "mounting", "setting", "connecting", "fixing", "screwing", and the like are to be understood broadly, and for example, may be fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.
Referring to fig. 1-7, a high-voltage cable grounding current detection device based on a visualization system comprises a grounding box 7, a rotating mechanism is arranged on the outer wall of the top of the grounding box 7, a cooling mechanism is arranged on the outer wall of the bottom of the grounding box 7, a high-frequency sampling unit is arranged inside the grounding box 7, grounding wires 2 distributed at equal intervals are arranged on the outer wall of the bottom of the grounding box 7, cable terminals 1 are electrically connected to the other ends of the grounding wires 2, the rotating mechanism comprises a rotating shaft 25 rotatably connected to the outer wall of the top of the grounding box 7, a mounting plate 11 is arranged on the outer wall of the top of the rotating shaft 25, an energy-saving mechanism for converting solar energy is arranged on the top of the mounting plate 11, the energy-saving mechanism comprises a support rod 18 fixed on one side of the outer wall of the top of the mounting plate 11, an electric telescopic rod 10 is hinged to the other side of the outer wall of the top of the mounting plate 11, and the same fixing plate 16 is hinged to the outer walls of the electric telescopic rod 10 and the support rod 18, solar cell panel 13 is installed to fixed plate 16 top outer wall, and the sliding tray has all been seted up to fixed plate 16 both ends outer wall, and the inner wall in sliding tray both sides rotates and is connected with same lead screw 17, and fixed plate 16 top is provided with clean mechanism.
Preferably, clean mechanism includes through the screw thread rotation at the sliding block 28 of 17 circumference outer walls of lead screw, and two sliding block 28 top outer walls install same brush hair board 21, brush hair board 21 bottom outer wall and 13 top outer wall sliding connection of solar cell panel, waterproof motor 19 is all installed at fixed plate 16 one side outer wall both ends, waterproof motor 19 output shaft passes through bolt and 17 one side outer wall fixed connection of lead screw, illumination sensor 14 is installed to fixed plate 16 top outer wall one side.
Preferably, driven gear 26 has been cup jointed to rotation axis 25 circumference outer wall bottom, and rectangular channel has been seted up to 7 top inner wall one sides of grounding box, motor 27 is installed to the top inner wall of rectangular channel, the driving gear has been cup jointed to motor 27 circumference outer wall bottom, driving gear and driven gear 26 mesh mutually, the ring channel has been seted up to 7 top outer walls of grounding box, ring channel inner wall sliding connection has the spacing round bar 24 of equidistance distribution, spacing round bar 24 top outer wall and 11 bottom outer wall fixed connection of mounting panel, 7 inside high frequency acquisition units that are provided with of grounding box, and the data acquisition unit is used for monitoring high tension cable's ground current, high frequency acquisition unit includes load current rogowski coil, ground current rogowski coil and current temperature detection sensor.
Preferably, the opening has been seted up to 7 one end outer walls of ground connection case, and the both sides inner wall of open-ended all articulates there is door plant 6, and electronic trick lock 15 is installed at 6 one end outer wall tops of one of them door plant, and the handle is installed to 6 one end outer walls of door plant, and the circumference outer wall of handle has cup jointed the antiskid cover, and the antiskid cover uses rubber materials to make.
Preferably, cooling mechanism includes four fixed bolster 3 of respectively passing through the bolt fastening in 7 bottom outer wall four corners of ground connection case, and same refrigeration mechanism 4 is installed to one side outer wall that fixed bolster 3 is relative, and refrigeration mechanism 4 is inside to include by the aspiration pump, and the outlet duct 5 is installed in the output of aspiration pump, and the 5 other ends of outlet duct extend to the inside of ground connection case 7.
Preferably, the outer wall of the bottom of the grounding box 7 is provided with transmission lines 22 distributed equidistantly, the other end of the transmission line 22 is provided with the same server 23, the server 23 comprises a memory and a display 9, the load current rogowski coil is used for collecting the load current of the cable body, the grounding current rogowski coil is used for collecting the grounding current of the cable, the current temperature detection sensor is used for monitoring the real-time temperature of a tail pipe of the cable, the load current rogowski coil, the grounding current rogowski coil and the current temperature detection sensor are connected with the input end of the high-frequency collection unit, the high-frequency collection unit converts the collected signals of the load current, the grounding current and the real-time temperature into digital quantity signals, the output end of the high-frequency collection unit is connected with the input end of the controller, and the controller is responsible for triggering sampling, initiating data transmission and arranging the collected data.
Preferably, water storage shell 12 is installed to the outer wall of mounting panel 11 top, and water storage shell 12 one side inner wall installs the suction pump, outlet pipe 8 is installed to the output of suction pump, the spray pipe 20 is installed to the outlet pipe 8 other end, the water spout nozzle of equidistance distribution is installed to spray pipe 20 bottom outer wall, spray pipe 20 is located solar cell panel 13 top, load current rogowski's coil is three-phase load current monitoring rogowski's coil, ground current rogowski's coil is three-phase ground current rogowski's coil, current temperature detection sensor is three-phase current temperature detection sensor, overcome phase error, high frequency sampling unit still includes the timer, the output and the controller of timer are connected, the timer provides time service for the controller, guarantee sampling frequency and time accurate.
Preferably, the display 9, the electric telescopic rod 10, the electronic coded lock 15, the waterproof motor 19 and the motor 27 are all connected with a switch through wires, and the switch is electrically connected with the signal input end of the controller through a signal line.
Preferably, the refrigerating mechanism 4 comprises semiconductor refrigerating sheets distributed equidistantly, the semiconductor refrigerating sheets are located below the refrigerating mechanism 4, radiating fins distributed equidistantly are mounted on the outer wall of the bottom of each semiconductor refrigerating sheet, cushion rubber pads are mounted on the outer wall of the bottom of the fixing support 3, and arc-shaped convex blocks distributed equidistantly are mounted on the outer wall of the bottom of each cushion rubber pad.
Preferably, the battery is installed to ground connection box 7 one side inner wall, and solar cell panel 13 is connected with the MPPT treater through the wire, and the MPPT treater passes through wire and battery electric connection.
The working principle is as follows: the solar cell panel 13 is arranged to convert external solar energy into electric energy and store the electric energy in the storage battery, the light sensor 14 is arranged on the fixing plate 16 to detect the light intensity, the motor 27 drives the rotating shaft 25 on the driven gear 26 to rotate through the driving gear, the conversion angle of the solar cell panel 13 is realized, the solar energy utilization efficiency can be further improved by matching with the electric telescopic rod 10, CT energy taking is not needed, no matter the starting current of the equipment, the data acquisition module can continuously and stably operate in all weather regardless of the current state of a cable, the brush hair plate 21 can be driven to move by arranging the waterproof motor 19, the lead screw 17 and the sliding block 28, the surface cleaning of the solar cell panel 13 is realized, and the water nozzle below the water spray pipe 20 on the water outlet pipe 8 can spray water on the surface of the solar cell panel 13, the washing sufficiency is realized, and the sunlight conversion effect is ensured.
The control mode of the invention is automatically controlled by the controller, the control circuit of the controller can be realized by simple programming of a person skilled in the art, the supply of the power supply also belongs to the common knowledge in the field, and the invention is mainly used for protecting mechanical devices, so the control mode and the circuit connection are not explained in detail in the invention.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. A high-voltage cable grounding current detection device based on a visual system comprises a grounding box (7) and is characterized in that a rotating mechanism is arranged on the outer wall of the top of the grounding box (7), a cooling mechanism is arranged on the outer wall of the bottom of the grounding box (7), a high-frequency sampling unit is arranged inside the grounding box (7), grounding wires (2) distributed equidistantly are arranged on the outer wall of the bottom of the grounding box (7), the other end of each grounding wire (2) is electrically connected with a cable terminal (1), the rotating mechanism comprises a rotating shaft (25) which is rotatably connected to the outer wall of the top of the grounding box (7), a mounting plate (11) is arranged on the outer wall of the top of the rotating shaft (25), an energy-saving mechanism for converting solar energy is arranged on the top of the mounting plate (11), the energy-saving mechanism comprises a supporting rod (18) fixed on one side of the outer wall of the top of the mounting plate (11), and an electric telescopic rod (10) is hinged to the other side of the outer wall of the top of the mounting plate (11), electric telescopic handle (10) and bracing piece (18) top outer wall articulate there is same fixed plate (16), and solar cell panel (13) are installed to fixed plate (16) top outer wall, and the sliding tray has all been seted up to fixed plate (16) both ends outer wall, and the inner wall of sliding tray both sides rotates and is connected with same lead screw (17), and fixed plate (16) top is provided with clean mechanism.
2. The high-voltage cable grounding current detection device based on the visualization system as claimed in claim 1, wherein the cleaning mechanism comprises sliding blocks (28) rotating on the outer wall of the circumference of the screw rod (17) through threads, the outer walls of the tops of the two sliding blocks (28) are provided with the same brushing plate (21), the outer wall of the bottom of the brushing plate (21) is slidably connected with the outer wall of the top of the solar cell panel (13), both ends of the outer wall of one side of the fixing plate (16) are provided with waterproof motors (19), the output shaft of the waterproof motor (19) is fixedly connected with the outer wall of one side of the screw rod (17) through bolts, and one side of the outer wall of the top of the fixing plate (16) is provided with the illumination sensor (14).
3. The high-voltage cable grounding current detection device based on the visualization system as claimed in claim 1, wherein the bottom of the circumferential outer wall of the rotating shaft (25) is sleeved with a driven gear (26), one side of the top inner wall of the grounding box (7) is provided with a rectangular groove, the top inner wall of the rectangular groove is provided with a motor (27), the bottom of the circumferential outer wall of the motor (27) is sleeved with a driving gear, the driving gear is engaged with the driven gear (26), the top outer wall of the grounding box (7) is provided with an annular groove, the inner wall of the annular groove is slidably connected with limit round rods (24) distributed at equal intervals, the top outer wall of the limit round rods (24) is fixedly connected with the bottom outer wall of the mounting plate (11), the grounding box (7) is internally provided with a high-frequency acquisition unit, and the data acquisition unit is used for monitoring the grounding current of the high-voltage cable, and the high-frequency acquisition unit comprises a load current rogowski coil, A grounding current Rogowski coil and a current temperature detection sensor.
4. The high-voltage cable grounding current detection device based on the visualization system as claimed in claim 1, wherein an opening is formed in an outer wall of one end of the grounding box (7), door panels (6) are hinged to inner walls of two sides of the opening, an electronic coded lock (15) is installed on the top of an outer wall of one end of one door panel (6), a handle is installed on an outer wall of one end of the door panel (6), an anti-slip sleeve is sleeved on an outer wall of the circumference of the handle, and the anti-slip sleeve is made of rubber materials.
5. The high-voltage cable grounding current detection device based on the visualization system according to claim 4, wherein the cooling mechanism comprises four fixing supports (3) respectively fixed at four corners of the outer wall of the bottom of the grounding box (7) through bolts, the same refrigerating mechanism (4) is installed on the outer wall of one side opposite to the fixing supports (3), the inside of the refrigerating mechanism (4) comprises a suction pump, an air outlet pipe (5) is installed at the output of the suction pump, and the other end of the air outlet pipe (5) extends to the inside of the grounding box (7).
6. The high-voltage cable grounding current detection device based on the visualization system according to claim 5, wherein the outer wall of the bottom of the grounding box (7) is installed with transmission lines (22) distributed equidistantly, and the other end of the transmission lines (22) is installed with the same server (23), the server (23) comprises a memory and a display (9), the load current Rogowski coil is used for collecting the load current of the cable body, the grounding current Rogowski coil is used for collecting the grounding current of the cable, the current temperature detection sensor is used for monitoring the real-time temperature of the tail pipe of the cable, the load current Rogowski coil, the grounding current Rogowski coil and the current temperature detection sensor are connected with the input end of the high-frequency collection unit, the high-frequency collection unit converts the collected signals of the load current, the grounding current and the real-time temperature into digital quantity signals, and the output end of the high-frequency collection unit is connected with the input end of the controller, the controller is responsible for triggering sampling, initiating data transmission and sorting the acquired data.
7. The high-voltage cable grounding current detection device based on the visualization system according to claim 6, wherein a water storage housing (12) is installed on the outer wall of the top of the mounting plate (11), a water pump is installed on the inner wall of one side of the water storage housing (12), a water outlet pipe (8) is installed on the output end of the water pump, a water spray pipe (20) is installed on the other end of the water outlet pipe (8), water spray nozzles distributed equidistantly are installed on the outer wall of the bottom of the water spray pipe (20), the water spray pipe (20) is located above the solar panel (13), the load current Rogowski coil is a three-phase load current monitoring Rogowski coil, the grounding current Rogowski coil is a three-phase grounding current Rogowski coil, the current temperature detection sensor is a three-phase current temperature detection sensor, phase errors are overcome, the high-frequency sampling unit further comprises a timer, and the output end of the timer is connected with the controller, the timer provides time service for the controller, and the sampling frequency and the time are accurate.
8. The high-voltage cable grounding current detection device based on the visualization system as claimed in claim 7, wherein the display (9), the electric telescopic rod (10), the electronic coded lock (15), the waterproof motor (19) and the motor (27) are all connected with a switch through wires, and the switch is electrically connected with a signal input end of the controller through a signal line.
9. The high-voltage cable grounding current detection device based on the visualization system as claimed in claim 5, wherein the refrigeration mechanism (4) comprises semiconductor refrigeration pieces distributed equidistantly, the semiconductor refrigeration pieces are located below the refrigeration mechanism (4), heat dissipation fins distributed equidistantly are mounted on the outer wall of the bottom of each semiconductor refrigeration piece, cushion rubber pads are mounted on the outer wall of the bottom of the fixing support (3), and arc-shaped convex blocks distributed equidistantly are mounted on the outer wall of the bottom of each cushion rubber pad.
10. The high-voltage cable grounding current detection device based on the visualization system as claimed in claim 9, wherein a storage battery is installed on an inner wall of one side of the grounding box (7), the solar panel (13) is connected with the MPPT processor through a wire, and the MPPT processor is electrically connected with the storage battery through a wire.
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| CN202110400603.0A CN113311213A (en) | 2021-04-14 | 2021-04-14 | High-voltage cable grounding current detection device based on visualization system |
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