CN113917212B - Intelligent electricity consumption monitoring system based on non-invasive high-voltage measurement technology - Google Patents
Intelligent electricity consumption monitoring system based on non-invasive high-voltage measurement technology Download PDFInfo
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- CN113917212B CN113917212B CN202110978866.XA CN202110978866A CN113917212B CN 113917212 B CN113917212 B CN 113917212B CN 202110978866 A CN202110978866 A CN 202110978866A CN 113917212 B CN113917212 B CN 113917212B
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- 238000005259 measurement Methods 0.000 title claims abstract description 67
- 230000005611 electricity Effects 0.000 title claims abstract description 14
- 238000012544 monitoring process Methods 0.000 title claims abstract description 10
- 238000002955 isolation Methods 0.000 claims abstract description 23
- 230000008054 signal transmission Effects 0.000 claims abstract description 17
- 230000007246 mechanism Effects 0.000 claims abstract description 11
- 230000009467 reduction Effects 0.000 claims abstract description 7
- 238000009529 body temperature measurement Methods 0.000 claims description 14
- 230000003993 interaction Effects 0.000 claims description 10
- 238000000691 measurement method Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 230000003068 static effect Effects 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 3
- 208000027418 Wounds and injury Diseases 0.000 description 6
- 206010014357 Electric shock Diseases 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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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
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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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Abstract
The invention discloses an intelligent electricity consumption monitoring system based on a non-invasive high-voltage measurement technology, which comprises a main loop cable, a load loop, an MCU main module, a voltage measurement mechanism and a measurement module, wherein a voltage transformer isolation module and a voltage reduction output module are arranged on the inner side of the voltage measurement mechanism, a current transformer clamping jaw, a leakage transformer coil and a loop wire frame are arranged on the outer side of the main loop cable, a loop clamping jaw is connected on the inner side of the loop wire frame in a sliding manner, a signal transmission block is fixedly connected on the inner wall surface of the loop clamping jaw, a sensor fixing belt is fixedly connected on the other end of the signal transmission block, and a temperature sensor is fixedly connected on the inner side of the sensor fixing belt.
Description
Technical Field
The invention relates to the technical field of high-voltage measurement, in particular to an intelligent electricity consumption monitoring system based on a non-invasive high-voltage measurement technology.
Background
When the intelligent electricity utilization transformation is carried out on places such as banks, schools and hospitals, the electricity utilization safety monitoring of electric parameters such as voltage, current and power is usually carried out on each loop of a floor distribution box, the existing measuring system directly carries out the incoming measurement of a commercial power line of a main loop of alternating current 220V, the placement of a temperature sensor is directly attached to the cable surface of the main loop, the phenomenon of falling and the like is easily caused by external influence, workers can be contacted with a high-voltage electric cable of the main loop for many times in the attaching process, the electric shock risk is easily generated, and the safety requirement is not met.
Disclosure of Invention
The invention aims to provide an intelligent electricity consumption monitoring system based on a non-invasive high-voltage measurement technology, which drives a loop clamping jaw through an insulating handle, so that a sensor fixing belt surrounds the outer side of a main loop cable after movement, a temperature sensor can be arranged on the outer side of the main loop cable without touching the main loop cable, the safety distance between the working personnel and the main loop cable is increased, and the electric shock risk is reduced, so that the problems in the background technology are solved.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the utility model provides an wisdom electricity consumption monitored control system based on non-invasive high voltage measurement technique, includes main loop cable, load return circuit, MCU main module, voltage measurement mechanism and measurement module, main loop cable is connected with the load return circuit, main loop cable is connected with the fuse through the wire, the fuse is connected with switching power supply through the wire, realizes overload protection through the fuse, switching power supply is connected with MCU main module through the wire, MCU main module is connected with man-machine interaction module through the wire, controls MCU main module through man-machine interaction module, the voltage measurement mechanism inboard is provided with voltage transformer isolation module and step-down output module, voltage transformer isolation module is connected through the wire with main loop cable, carries out mutual inductance to main loop cable through voltage transformer isolation module, then carries out weak current signal to measurement module through step-down output module, measurement module's inboard is provided with current measurement circuit, electric leakage measurement circuit and temperature measurement circuit.
Further, the outside of main loop cable is provided with current transformer clamping jaw, electric leakage transformer coil and return circuit wire frame, current transformer clamping jaw is connected with current measurement circuit, electric leakage transformer coil is connected with electric leakage measurement circuit, can make current measurement circuit and electric leakage measurement circuit detect the current parameter and the electric leakage parameter of main loop cable through current transformer clamping jaw and electric leakage transformer coil to the mutual inductance of main loop cable.
Further, the inboard sliding connection of return circuit wire frame has the return circuit clamping jaw, the equal fixedly connected with insulating handle of outer terminal surface of return circuit wire frame and return circuit clamping jaw increases the distance between staff and the main loop cable when the operation through insulating handle, the internal face fixedly connected with signal transmission piece of return circuit clamping jaw, the one end of signal transmission piece is connected with temperature measurement circuit through the wire, the other end fixedly connected with sensor fixed band of signal transmission piece, the inboard fixedly connected with temperature sensor of sensor fixed band, temperature sensor is evenly distributed in the inboard of sensor fixed band, makes temperature sensor evenly arranged through the sensor fixed band.
Further, the bottom fixedly connected with of sensor fixed band adjusts the slider, through the slip of adjusting the slider, can be with sensor fixed band pulling, the internal face fixedly connected with of return circuit wire frame adjusts the spout, adjust slider sliding connection in the inboard of adjusting the spout, it is spacing to the slip of adjusting the slider through adjusting the spout, an end fixedly connected with extension spring of adjusting the slider, extension spring fixedly connected with is in the inboard of adjusting the spout, can be with adjusting the inboard pulling of slider at adjusting the spout through the extension spring.
Further, the inner side of the bottom end of the loop wire frame is fixedly connected with a rubber ball socket, the outer end face of the loop clamping jaw is fixedly connected with a convex ball head, the convex ball head and the rubber ball socket correspond to each other, and the convex ball head is inserted into the inner side of the rubber ball socket, so that static friction force of the rubber ball socket to the convex ball head can avoid random sliding of the loop clamping jaw.
Further, the working method of the system is as follows:
step one: placing a loop wire frame on the outer side of a main loop cable, attaching the main loop cable to a sensor fixing belt, enabling a loop clamping jaw to slide on the inner side of the loop wire frame through an insulating handle until the loop clamping jaw drives a convex ball head to slide into the inner side of a rubber ball socket, and avoiding random sliding of the loop clamping jaw through static friction force of the rubber ball socket to the convex ball head;
step two: the main loop cable can enter the inner side of the loop wire frame and loop clamping jaw assembly after the loop clamping jaw moves, the loop clamping jaw can drive the top end of the sensor fixing belt to move, so that the sensor fixing belt moves far in a circumferential direction, the main loop cable is positioned on the inner side of a track of the circumferential movement, the sensor fixing belt surrounds the outer side of the main loop cable after moving, the adjusting sliding block always slides in the opposite direction of the signal transmission block under the pulling force of the tension spring, the shape of the sensor fixing belt on the outer side of the main loop cable is changed, and the sensor fixing belt is tightly attached to the outer surface of the main loop cable and is wound, so that the automatic setting of the temperature sensor is realized;
step three: connecting a voltage transformer isolation module with a main loop cable, generating current by the voltage transformer isolation module through coil mutual inductance, and supplying power for a current measurement circuit, a leakage measurement circuit and a temperature measurement circuit which are arranged on the inner side of a measurement module through a voltage reduction output module;
step four: the current transformer clamping jaw and the leakage transformer coil mutually inductance the current in the main loop cable, so that the current measuring circuit measures the current parameter, the leakage measuring circuit measures the leakage parameter, the temperature sensor is attached to the main loop cable, the temperature measuring circuit measures the temperature parameter of the main loop cable, the switching power supply is turned on, the main loop cable supplies power to the MCU main module, the MCU main module is isolated from the voltage transformer, the current measuring circuit, the leakage measuring circuit and the temperature measuring circuit, and the MCU main module processes and analyzes the received data through the man-machine interaction module, so that the parameter measurement of the main loop cable is realized.
Compared with the prior art, the high-voltage signal is completely isolated through the voltage transformer isolation module and the voltage reduction output module, weak voltage output is performed, the loop clamping jaw is driven through the insulating handle, the sensor fixing belt is enabled to encircle the outer side of the main loop cable after moving, so that the temperature sensor can be arranged on the outer side of the main loop cable without contacting the main loop cable, the safety distance between the working personnel and the main loop cable is increased, the electric shock risk is reduced, and the outer side of the main loop cable attached with the temperature sensor is protected by the cylindrical barrel assembly formed by the loop wire frame and the loop clamping jaw, so that the problem that the temperature sensor falls down due to external influence is avoided.
Compared with the prior art, after the sensor fixing belt is wound on the outer side of the main loop cable, the tension of the tension spring to the adjusting slide block enables the adjusting slide block to apply pressure to one end of the sensor fixing belt, so that the sensor fixing belt is spirally wound on the outer side of the main loop cable in a single circle, the adhesion between the temperature sensor and the main loop cable is ensured, and the main loop cable with different sizes and shapes can be wound.
Drawings
In order to more clearly illustrate the technical solutions of the present invention, the drawings that are needed in the technical description of the present invention will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of the overall structure of the present invention.
FIG. 2 is a schematic side view of a circuit frame according to the present invention.
Fig. 3 is a schematic diagram of the structure of fig. 2 at a.
Fig. 4 is a schematic rear view of the circuit frame of the present invention.
Fig. 5 is a schematic perspective view of a circuit frame according to the present invention.
In the figure: 1. a main loop cable; 2. a load loop; 3. a fuse; 4. a switching power supply; 5. a MCU main module; 6. a man-machine interaction module; 7. a voltage measuring mechanism; 8. a voltage transformer isolation module; 9. a step-down output module; 10. a measurement module; 11. a current transformer clamping jaw; 12. a current measurement circuit; 13. a leakage transformer coil; 14. a leakage measurement circuit; 15. a temperature measurement circuit; 16. a loop frame; 17. a loop clamping jaw; 18. a signal transmission block; 19. a sensor fixing band; 20. a temperature sensor; 21. adjusting the chute; 22. an adjusting slide block; 23. a tension spring; 24. a convex ball head; 25. rubber ball socket; 26. an insulated handle.
Detailed Description
The present invention will be further described with reference to the following embodiments, and all other embodiments obtained by those skilled in the art without making any inventive effort are intended to fall within the scope of the present invention.
Example 1
Referring to fig. 1-5, the present invention provides a technical solution:
the utility model provides an wisdom electricity consumption monitored control system based on non-invasive high voltage measurement technique, includes main loop cable (1), load return circuit (2), MCU master module (5), voltage measurement mechanism (7) and measurement module (10), main loop cable is connected with load return circuit (2), main loop cable (1) is connected with fuse (3) through the wire, fuse (3) are connected with switching power supply (4) through the wire, realize overload protection through fuse (3), switching power supply (4) are connected with MCU master module (5) through the wire, MCU master module (5) are connected with man-machine interaction module (6) through the wire, control MCU master module (5) through man-machine interaction module (6), voltage measurement mechanism (7) inboard is provided with voltage transformer isolation module (8) and step-down output module (9), voltage transformer isolation module (8) are connected with main loop cable (1) through the wire, carry out mutual inductance to main loop cable (1) through voltage transformer isolation module (8), will be strong and high voltage signal step down then carry out step-down and carry out the complete output module (10) through the wire, measurement module (10) are provided with measurement module (12) A leakage measurement circuit (14) and a temperature measurement circuit (15).
Specifically, the outside of main loop cable (1) is provided with current transformer clamping jaw (11), electric leakage transformer coil (13) and return circuit wire frame (16), current transformer clamping jaw (11) are connected with current measurement circuit (12), electric leakage transformer coil (13) are connected with electric leakage measurement circuit (14), can make current measurement circuit (12) and electric leakage measurement circuit (14) detect current parameter and electric leakage parameter of main loop cable (1) through current transformer clamping jaw (11) and electric leakage transformer coil (13) to the mutual inductance of main loop cable (1).
Specifically, the inboard sliding connection of return circuit wire frame (16) has return circuit clamping jaw (17), the equal fixedly connected with insulating handle (26) of the outer terminal surface of return circuit wire frame (16) and return circuit clamping jaw (17), increase staff in the operation with the distance between main loop cable (1) through insulating handle (26), the inner wall fixedly connected with signal transmission piece (18) of return circuit clamping jaw (17), the one end of signal transmission piece (18) is connected with temperature measurement circuit (15) through the wire, the other end fixedly connected with sensor fixed band (19) of signal transmission piece (18), the inboard fixedly connected with temperature sensor (20) of sensor fixed band (19), temperature sensor (20) are evenly distributed in the inboard of sensor fixed band (19), make temperature sensor (20) evenly arranged through sensor fixed band (19).
Specifically, bottom fixedly connected with adjustment slider (22) of sensor fixed band (19), through the slip of adjustment slider (22), can be with sensor fixed band (19) pulling, the internal face fixedly connected with of return circuit wire frame (16) adjusts spout (21), adjustment slider (22) sliding connection is in the inboard of adjusting spout (21), carries out spacingly through the slip of adjusting slider (22) through adjusting spout (21), the one end fixedly connected with extension spring (23) of adjustment slider (22), extension spring (23) fixedly connected with is in the inboard of adjusting spout (21), can be with the inboard pulling of adjustment slider (22) at adjusting spout (21) through extension spring (23).
Specifically, the inner side of the bottom end of the loop wire frame (16) is fixedly connected with a rubber ball socket (25), the outer end face of the loop clamping jaw (17) is fixedly connected with a convex ball head (24), the convex ball head (24) corresponds to the rubber ball socket (25), and the inner side of the rubber ball socket (25) is inserted through the convex ball head (24), so that static friction force of the rubber ball socket (25) to the convex ball head (24) can prevent the loop clamping jaw (17) from sliding randomly.
By adopting the technical scheme: according to the invention, a strong-current high-voltage signal is completely isolated through the voltage transformer isolation module and the voltage reduction output module (9), weak voltage output is carried out, the loop clamping jaw (17) is driven through the insulating handle (26), so that the sensor fixing belt (19) surrounds the inner side of the main loop cable (1) after moving, the temperature sensor can be arranged on the outer side of the main loop cable (1) without contacting the main loop cable (1), the safety distance between the working personnel and the main loop cable (1) is increased, the electric shock risk is reduced, and the cylindrical barrel assembly formed by the loop wire frame (16) and the loop clamping jaw (17) protects the outer side of the main loop cable (1) attached with the temperature sensor (20) and avoids the problem that the temperature sensor (20) falls down due to external influences; according to the invention, after the sensor fixing belt (19) is wound on the outer side of the main loop cable (1), the tension of the tension spring (23) is used for enabling the tension spring (22) to apply pressure to one end of the sensor fixing belt (19) by the tension spring (22), so that the sensor fixing belt (19) is spirally wound on the outer side of the main loop cable (1) in a single turn, the adhesion between the temperature sensor (20) and the main loop cable (1) is ensured, and the main loop cable (1) with different sizes and shapes can be wound.
It should be noted that the invention relates to an intelligent electricity consumption monitoring system based on a non-invasive high-voltage measurement technology, which comprises the following specific working methods: the loop wire frame (16) is placed on the outer side of the main loop wire (1), the main loop wire (1) is attached to the inner side of a sensor fixing band (19), then the loop clamping jaw (17) slides on the inner side of the loop wire frame (18) through an insulating handle (26), until the loop clamping jaw (17) drives a convex ball head (24) to slide on the inner side of a rubber ball socket (25), the loop clamping jaw (17) is prevented from sliding randomly through static friction force of the rubber ball socket (25) on the convex ball head (24), the main loop wire (1) enters the inner side of a combination of the loop wire frame (16) and the loop clamping jaw (17) after the loop clamping jaw (17) moves, the loop clamping jaw (17) drives the top end of the sensor fixing band (19) to move, the sensor fixing band (19) moves far in a circumference, the main loop wire (1) is positioned on the inner side of a circular movement track, the sensor fixing band (19) surrounds the inner side of the main loop wire (1) after the movement, the tension spring (23) always changes the shape of the loop wire (19) to change the shape of the loop wire (19) after the slider (23) moves, the tension force of the loop wire (19) is always changed, the tension of the loop wire is fixed on the outer surface of the loop wire (1) is wound on the outer surface of the loop wire (1), thereby realize the automation setting of temperature sensor (1), be connected voltage transformer isolation module (8) and main loop cable (1), through the coil mutual inductance, make electric industry transformer isolation module (8) produce electric current, and be provided with current measurement circuit (12) for the inboard of measuring module (10) through step-down output module (9), electric leakage measurement circuit (14) and temperature measurement circuit (15) supply power, current transformer clamping jaw (11) and electric leakage transformer coil (13) are mutual-inductance to the electric current in main loop cable (1), make current measurement circuit (12) carry out the measurement of current parameter, electric leakage measurement circuit (14) carry out the measurement of electric leakage parameter, temperature sensor (20) and laminating of main loop cable (1), make temperature measurement circuit (15) measure the temperature parameter of main loop cable (1), open switching power supply (4), make main loop cable (1) carry out power supply for MCU (5), carry out mutual-inductance to the electric current in main module (5) and voltage transformer isolation module (8), current measurement circuit (12) and temperature measurement circuit (14) and temperature measurement circuit (15), make MCU (6) carry out the measurement of main loop cable (5) and carry out the measurement of electric leakage parameter through MCU (6), realize the mutual-analysis of main loop cable (6).
Example 2
Referring to fig. 1-3, the present invention provides a technical solution:
the utility model provides an wisdom electricity consumption monitored control system based on non-invasive high voltage measurement technique, includes main loop cable (1), load return circuit (2), MCU main module (5), voltage measurement mechanism (7) and measurement module (10), main loop cable and load return circuit (2) are connected, main loop cable (1) is connected with fuse (3) through the wire, fuse (3) are connected with switching power supply (4) through the wire, realize overload protection through fuse (3), switching power supply (4) are connected with MCU main module (5) through the wire, MCU main module (5) are connected with man-machine interaction module (6) through the wire, control MCU main module (5) through man-machine interaction module (6), voltage measurement mechanism (7) inboard is provided with voltage transformer isolation module (8) and step down output module (9), voltage transformer isolation module (8) are connected through the wire with main loop cable (1), carry out mutual inductance to main loop cable (1) through voltage transformer isolation module (8), will be strong and high voltage signal step down then carry out step down and give electric signal measurement module (10) completely through weak signal, the inner side of the measuring module (10) is provided with a current measuring circuit (12) and a leakage measuring circuit (14).
Specifically, the outside of main loop cable (1) is provided with current transformer clamping jaw (11), electric leakage transformer coil (13) and return circuit wire frame (16), current transformer clamping jaw (11) are connected with current measurement circuit (12), electric leakage transformer coil (13) are connected with electric leakage measurement circuit (14), can make current measurement circuit (12) and electric leakage measurement circuit (14) detect current parameter and electric leakage parameter of main loop cable (1) through current transformer clamping jaw (11) and electric leakage transformer coil (13) to the mutual inductance of main loop cable (1).
Specifically, the inboard sliding connection of return circuit wire frame (16) has return circuit clamping jaw (17), the equal fixedly connected with insulating handle (26) of the outer terminal surface of return circuit wire frame (16) and return circuit clamping jaw (17), increase staff in the operation with the distance between main loop cable (1) through insulating handle (26), the inner wall fixedly connected with signal transmission piece (18) of return circuit clamping jaw (17), the one end of signal transmission piece (18) is connected with temperature measurement circuit (15) through the wire, the other end fixedly connected with sensor fixed band (19) of signal transmission piece (18), the inboard fixedly connected with temperature sensor (20) of sensor fixed band (19), temperature sensor (20) are evenly distributed in the inboard of sensor fixed band (19), make temperature sensor (20) evenly arranged through sensor fixed band (19).
By adopting the technical scheme: according to the invention, a strong-current high-voltage signal is completely isolated through the voltage transformer isolation module and the voltage reduction output module (9), weak voltage output is performed, the loop clamping jaw (17) is driven through the insulating handle (26), so that the sensor fixing belt (19) surrounds the inner side of the main loop cable (1) after moving, the temperature sensor can be arranged on the outer side of the main loop cable (1) without contacting the main loop cable (1), the safety distance between the working personnel and the main loop cable (1) is increased, the electric shock risk is reduced, and the cylindrical barrel assembly formed by the loop wire frame (16) and the loop clamping jaw (17) protects the outer side of the main loop cable (1) attached with the temperature sensor (20) and avoids the problem that the temperature sensor (20) falls down due to external influences.
Example 3
Referring to fig. 4-5, the present invention provides a technical solution:
an intelligent electricity consumption monitoring system based on a non-invasive high-voltage measurement technology comprises a measurement module (10), wherein a temperature measurement circuit (15) is arranged on the inner side of the measurement module (10).
Specifically, bottom fixedly connected with adjustment slider (22) of sensor fixed band (19), through the slip of adjustment slider (22), can be with sensor fixed band (19) pulling, the internal face fixedly connected with of return circuit wire frame (16) adjusts spout (21), adjustment slider (22) sliding connection is in the inboard of adjusting spout (21), carries out spacingly through the slip of adjusting slider (22) through adjusting spout (21), the one end fixedly connected with extension spring (23) of adjustment slider (22), extension spring (23) fixedly connected with is in the inboard of adjusting spout (21), can be with the inboard pulling of adjustment slider (22) at adjusting spout (21) through extension spring (23).
Specifically, the inner side of the bottom end of the loop wire frame (16) is fixedly connected with a rubber ball socket (25), the outer end face of the loop clamping jaw (17) is fixedly connected with a convex ball head (24), the convex ball head (24) corresponds to the rubber ball socket (25), and the inner side of the rubber ball socket (25) is inserted through the convex ball head (24), so that static friction force of the rubber ball socket (25) to the convex ball head (24) can prevent the loop clamping jaw (17) from sliding randomly.
By adopting the technical scheme: according to the invention, after the sensor fixing belt (19) is wound on the outer side of the main loop cable (1), the tension of the tension spring (23) is used for enabling the tension spring (22) to apply pressure to one end of the sensor fixing belt (19) by the tension spring (22), so that the sensor fixing belt (19) is spirally wound on the outer side of the main loop cable (1) in a single turn, the adhesion between the temperature sensor (20) and the main loop cable (1) is ensured, and the main loop cable (1) with different sizes and shapes can be wound.
The foregoing description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and it should be understood that the technical scheme and the inventive concept according to the present invention are equivalent or changed within the scope of the present invention disclosed by the present invention by those skilled in the art.
Claims (3)
1. The utility model provides an wisdom power consumption monitored control system based on non-invasive high voltage measurement technique, includes main loop cable, load return circuit, MCU main module, voltage measurement mechanism and measurement module, its characterized in that: the main loop cable is electrically connected with the load loop, the main loop cable is connected with a fuse through a wire, the fuse is connected with a switching power supply through a wire, the switching power supply is connected with an MCU main module through a wire, the MCU main module is connected with a man-machine interaction module through a wire, a voltage transformer isolation module and a voltage reduction output module are arranged on the inner side of the voltage measuring mechanism, the voltage transformer isolation module is connected with the main loop cable through a wire, and a current measuring circuit, a leakage measuring circuit and a temperature measuring circuit are arranged on the inner side of the measuring module; the outer side of the main loop cable is provided with a current transformer clamping jaw, a leakage transformer coil and a loop wire frame, wherein the current transformer clamping jaw is electrically connected with a current measurement circuit, and the leakage transformer coil is electrically connected with the leakage measurement circuit;
the inner side of the loop wire frame is connected with a loop clamping jaw in a sliding manner, the outer end faces of the loop wire frame and the loop clamping jaw are fixedly connected with an insulating handle, the inner wall face of the loop clamping jaw is fixedly connected with a signal transmission block, one end of the signal transmission block is electrically connected with a temperature measurement circuit through a wire, the other end of the signal transmission block is fixedly connected with a sensor fixing belt, the inner side of the sensor fixing belt is fixedly connected with a temperature sensor, and the temperature sensor is uniformly distributed on the inner side of the sensor fixing belt; the bottom fixedly connected with of sensor fixed band adjusts the slider, the interior wall fixedly connected with of return circuit wire frame adjusts the spout, adjust slider sliding connection in the inboard of adjusting the spout, an end fixedly connected with extension spring of adjusting the slider, extension spring fixedly connected with is in the inboard of adjusting the spout.
2. An intelligent electricity consumption monitoring system based on non-invasive high voltage measurement technique as claimed in claim 1, wherein: the inner side of the bottom end of the loop wire frame is fixedly connected with a rubber ball socket, the outer end face of the loop clamping jaw is fixedly connected with a convex ball head, and the convex ball head corresponds to the rubber ball socket.
3. An intelligent electricity consumption monitoring system based on non-invasive high voltage measurement technique as claimed in claim 1, wherein: the working method of the system is as follows:
step one: placing a loop wire frame on the outer side of a main loop cable, attaching the main loop cable to a sensor fixing belt, enabling a loop clamping jaw to slide on the inner side of the loop wire frame through an insulating handle until the loop clamping jaw drives a convex ball head to slide into the inner side of a rubber ball socket, and avoiding random sliding of the loop clamping jaw through static friction force of the rubber ball socket to the convex ball head;
step two: the main loop cable can enter the inner side of the loop wire frame and loop clamping jaw assembly after the loop clamping jaw moves, the loop clamping jaw can drive the top end of the sensor fixing belt to move, so that the sensor fixing belt moves far in a circumferential direction, the main loop cable is positioned on the inner side of a track of the circumferential movement, the sensor fixing belt surrounds the outer side of the main loop cable after moving, the adjusting sliding block always slides in the opposite direction of the signal transmission block under the pulling force of the tension spring, the shape of the sensor fixing belt on the outer side of the main loop cable is changed, and the sensor fixing belt is tightly attached to the outer surface of the main loop cable and is wound, so that the automatic setting of the temperature sensor is realized;
step three: connecting a voltage transformer isolation module with a main loop cable, generating current by the voltage transformer isolation module through coil mutual inductance, and supplying power for a current measurement circuit, a leakage measurement circuit and a temperature measurement circuit which are arranged on the inner side of a measurement module through a voltage reduction output module;
step four: the current transformer clamping jaw and the leakage transformer coil mutually inductance the current in the main loop cable, so that the current measuring circuit measures the current parameter, the leakage measuring circuit measures the leakage parameter, the temperature sensor is attached to the main loop cable, the temperature measuring circuit measures the temperature parameter of the main loop cable, the switching power supply is turned on, the main loop cable supplies power to the MCU main module, the MCU main module is isolated from the voltage transformer, the current measuring circuit, the leakage measuring circuit and the temperature measuring circuit, and the MCU main module processes and analyzes the received data through the man-machine interaction module, so that the parameter measurement of the main loop cable is realized.
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| CN102084259A (en) * | 2008-07-21 | 2011-06-01 | 保维森斯公司 | 3-phase faraday optical current sensor assembly |
| KR101317220B1 (en) * | 2013-02-21 | 2013-10-18 | (주)테라에너지시스템 | Current transformer system including structure of sensor ct and structure of generator ct mounted in parallel on electric power line, and integrated wireless communication system monitering the same |
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| CN113917212A (en) | 2022-01-11 |
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