CN114167273A - Intelligent monitoring and fault diagnosis system for high-voltage switch - Google Patents
Intelligent monitoring and fault diagnosis system for high-voltage switch Download PDFInfo
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- CN114167273A CN114167273A CN202111466881.2A CN202111466881A CN114167273A CN 114167273 A CN114167273 A CN 114167273A CN 202111466881 A CN202111466881 A CN 202111466881A CN 114167273 A CN114167273 A CN 114167273A
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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
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
- G01R31/3271—Testing of circuit interrupters, switches or circuit-breakers of high voltage or medium voltage devices
- G01R31/3275—Fault detection or status indication
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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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
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
- G01R31/3271—Testing of circuit interrupters, switches or circuit-breakers of high voltage or medium voltage devices
- G01R31/3272—Apparatus, systems or circuits therefor
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/54—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere
Abstract
The invention discloses an intelligent monitoring and fault diagnosis system for a high-voltage switch, wherein an integral monitoring module is arranged in a high-voltage switch body and is electrically connected with a monitoring controller, the monitoring controller monitors switch state information and fault information of the high-voltage switch body and reports the switch state information and the fault information to a monitoring platform, and the monitoring platform stores, processes and displays the switch state information and the fault information and sends a control command to the monitoring controller for processing. The invention carries out real-time monitoring, data acquisition, real-time setting, diagnosis function, trend prediction, fault alarm and data uploading to a monitoring platform for the high-voltage switch in the operation and running period of the high-voltage switch when the switch-on and switch-off springs and the contact pressure springs of the high-voltage switch are in the energy storage and release states, the switch-off and switch-on positions of a transmission mechanism, the temperature rise of a conductive contact part and the like, thereby ensuring the safe operation of the high-voltage switch equipment and preventing sudden accidents.
Description
Technical Field
The invention relates to the technical field of monitoring of high-voltage switches of power systems, in particular to a system for intelligently monitoring and diagnosing faults of a high-voltage switch.
Background
In a conventional power transmission system, a high-voltage switch cabinet is used as a core junction part of the power transmission system to play a critical role, and how to ensure the normal operation of the high-voltage switch cabinet is a very important subject in a power grid.
At present, due to the fact that transportation and workers are installed badly, and high-temperature oxidation corrosion, bolt looseness and other reasons caused by long-term large-current work and use of numerous contact points of a conductive loop inside a switch cabinet can cause poor contact of contacts, connection eccentricity is incorrect, and then contact resistance is increased, abnormal temperature rise of the contacts is caused, certain parts of equipment are heated, if the abnormal temperature rise is not timely processed, the equipment can be finally burnt, exploded and powered off, and even serious accidents occur. The hidden danger in the aspect causes people to pay attention to electric power temperature measurement, and problems can be found out in time, so that accidents can be avoided. However, people often neglect two factors which are particularly important and cause hidden dangers to the switch equipment. On one hand, the high-voltage switch is required to be reliably closed and disconnected when taking the roles of switching on and switching off a loop, cutting off and isolating faults, and the conditions of refusal, rotation of a main shaft transmission crank arm which is not in place, mechanism jamming, operation failure and the like are not allowed to occur; on the other hand, the pressure values of the closing spring and the opening spring are one of key parameters of a switch during a rated peak current tolerance test, different contact pressure values have different influences on the performance of a conductive loop of the switch, and when the contact pressure is insufficient, good contact of the contact cannot be guaranteed, so that the resistance is increased, and the temperature rise performance is influenced; in addition, the insufficient pressure of the contact can cause the contact to separate when the rated peak current-withstanding test is carried out on the switch, and the contact is welded and fails in the severe case.
In summary, in the prior art, it is necessary to develop an intelligent monitoring and fault diagnosis system for a high-voltage switch, so as to perform real-time monitoring, data acquisition, real-time setting, diagnosis function, trend prediction, fault alarm and data uploading on the operating state of a transmission component and the magnitude of a spring pressure value to a monitoring platform, ensure the safe operation of a high-voltage switch device, and prevent an accident.
Disclosure of Invention
In order to solve the technical problems, the invention provides a system for intelligently monitoring and diagnosing faults of a high-voltage switch, which comprises a high-voltage switch body, an integral monitoring module, a monitoring controller and a monitoring platform, wherein the integral monitoring module is arranged in the high-voltage switch body and is electrically connected with the monitoring controller, the monitoring controller monitors the switch state information and the fault information of the high-voltage switch body and reports the switch state information and the fault information to the monitoring platform, and the monitoring platform stores, processes and displays the switch state information and the fault information and sends a control command to the monitoring controller for processing.
Preferably, the high-voltage switch body comprises a rack, an energy storage transmission device, a vacuum arc extinguish chamber and a conductive mechanism, the rack is provided with the energy storage transmission device and the vacuum arc extinguish chamber, the energy storage transmission device comprises a closing spring, a cam transmission mechanism, a separating spring and a main shaft transmission mechanism, the upper end of the closing spring is in adaptive connection with the cam mechanism, the cam transmission mechanism comprises an energy storage motor, a cam sprocket, a cam central shaft, a cam retaining latch and a needle bearing, the output end of the energy storage motor is in adaptive connection with the periphery of the cam sprocket, the cam central shaft is arranged in the center of the cam sprocket in a penetrating manner, the cam sprocket is provided with the needle bearing, the needle bearing can be contacted with one end of the cam retaining latch when rotating along with the cam sprocket, the other end of the cam retaining latch is connected with the cam retaining shaft, and the cam central shaft is further provided with a spring crank arm, one end of the spring crank arm is in adaptive connection with the closing spring; the opening spring is connected with the main shaft transmission mechanism, and the main shaft transmission mechanism can drive opening and closing.
Preferably, a contact pressure spring is arranged in the vacuum arc extinguish chamber, an insulating pull rod is coated outside the contact pressure spring, and the lower end of the insulating pull rod is connected with the opening spring through a connecting piece.
Preferably, vacuum interrupter one side and electrically conductive mechanism fixed connection, it touches the arm to be equipped with utmost point post in the electrically conductive mechanism, utmost point post touches arm one end and installs the plum blossom contact.
Preferably, the overall monitoring module comprises an elasticity monitoring module, a temperature rise wireless monitoring module and a displacement monitoring module, the elasticity monitoring module comprises a plurality of shaft pin sensors, the shaft pin sensors are electrically connected with the monitoring controller, a shaft pin sensor is arranged at the lower end of the closing spring, and the shaft pin sensor outputs a measurement change value signal of the closing spring in an energy storage or non-energy storage state to the monitoring controller for data processing.
Preferably, the lower end of the opening spring and the lower end of the insulating pull rod are both provided with shaft pin sensors, and when the contact pressure spring is in two states of opening pre-tensioning, pressing or working energy storage, the shaft pin sensors arranged at the lower end of the opening spring output measured change value signals to the monitoring controller for data processing.
Preferably, state temperature rise wireless monitoring module and include the wireless temperature measuring device of contact and a plurality of wireless temperature sensor, the wireless temperature measuring device's of contact input with monitor controller electric connection, the wireless temperature measuring device's of contact output and wireless temperature sensor electric connection, utmost point post touches the arm and installs wireless temperature sensor near plum blossom contact department, wireless temperature sensor exports the temperature variation value communication of plum blossom contact to the wireless temperature measuring device of contact, the wireless temperature measuring device of contact reads in real time the temperature data of plum blossom contact.
Preferably, the displacement monitoring module comprises a plurality of inductive sensors, an inductive sensor is mounted at the end of the needle bearing, and the inductive sensor transmits the displacement change signal of the needle bearing to the monitoring controller.
Preferably, a main shaft crank pin and a closing keeping pawl are arranged on the main shaft transmission mechanism, the upper end of the opening spring is connected with the closing keeping pawl through the main shaft crank pin, an inductive sensor is mounted at the end of the main shaft crank pin, and the inductive sensor transmits signals of the two positions of the main shaft crank pin to the monitoring controller so as to obtain the change of the displacement state.
Preferably, the monitoring platform further comprises a touch screen, and the touch screen can be used for setting and modifying the operating parameters of the high-voltage switch body, displaying various detection data and fault information monitored by the integral monitoring module in real time and carrying out automatic alarm processing.
Compared with the prior art, the invention has the following beneficial effects:
(1) the monitoring controller and the contact wireless temperature measuring device read the temperature data of the tulip contact in real time through communication, and judge whether the temperature rise exceeds a safety value after data processing, so as to carry out fault diagnosis; data of the shaft pin sensor is directly input into an analog input channel of the monitoring controller, filtering, amplification and analog-digital conversion are carried out, the monitoring controller obtains stress values of a closing spring and an opening spring, fatigue states of the closing spring and the opening spring are judged after relevant data processing is carried out, and then whether the closing spring and the opening spring have faults or not is diagnosed; the method comprises the following steps that a switching signal of an inductive sensor is input into a switching value input channel of a monitoring controller, the monitoring controller acquires the displacement state of a main shaft crank arm pin, whether a main shaft transmission mechanism reaches a set position is judged, and whether the main shaft transmission mechanism breaks down or not is judged by combining a time strategy and the stress of a brake separating spring; the monitoring controller and the monitoring platform carry out data transmission, receive a control command sent by the monitoring platform, and upload related data and fault information acquired by the integral monitoring module in the high-voltage switch body to the monitoring platform, so that the monitoring platform stores, deeply processes and displays the data; the touch screen is used for setting and modifying operation parameters related to the high-voltage switch body, displaying various detection data and fault information monitored by the integral monitoring module in real time, and performing automatic alarm processing to ensure safe operation of the high-voltage switch equipment and prevent accidents.
(2) The invention provides a locking module, when a main shaft transmission mechanism, a contact pressure spring, a switching-off spring, a switching-on spring and a plum blossom contact have faults, a monitoring controller sends an instruction to the locking module except for timely alarming, and the locking module provides a fault locking contact for a high-voltage switch body in real time and is used for protecting and self-locking the high-voltage switch body; when the fault is repaired, the monitoring controller can issue a command again to provide a forced unlocking function.
Drawings
FIG. 1 is a monitoring flow diagram of the present invention;
FIG. 2 is a front view of the high voltage switch body of the present invention;
FIG. 3 is a side view of a closing spring in a high voltage switch body of the present invention with stored energy in place;
FIG. 4 is an internal structure diagram of the high voltage switch body of the present invention when the closing spring stores energy in place;
FIG. 5 is a schematic structural view of the high-voltage switch body of the present invention after the closing spring is energized;
FIG. 6 is a partial cross-sectional view of the spring crank arm and cam sprocket of FIG. 4 in accordance with the present invention.
Detailed Description
The invention is further described with reference to the following drawings and detailed description.
As shown in fig. 1 to 6, a system for intelligently monitoring and diagnosing a fault of a high-voltage switch includes a high-voltage switch body 1, a rack 2, a vacuum arc-extinguishing chamber 3, a conductive mechanism 4, a closing spring 5, an energy storage motor 601, a cam sprocket 602, a cam center shaft 603, a cam retaining shaft 604, a cam retaining latch 605, a needle bearing 606, a spring crank 607, an opening spring 608, a contact compression spring 7, an insulating pull rod 8, a pole contact arm 9, a tulip contact 10, a main shaft crank pin 11, a shaft pin sensor 12, a wireless temperature sensor 13, an inductive sensor 14, and a closing retaining latch 15.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Be equipped with whole monitoring module in the high tension switchgear body 1, whole monitoring module and monitor controller electric connection, monitor controller monitors high tension switchgear body 1's on-off state information and fault information and reports to the monitoring platform, the monitoring platform stores on-off state information and fault information, data processing and demonstration, and issue control command to the monitoring controller and handle, specifically, the monitoring controller communicates with the monitoring platform through 4GCAT1 or RS485 bus, the relevant data and the fault information that obtain by whole monitoring module in the monitor controller uploads high tension switchgear body 1 to the monitoring platform, let the monitoring platform save, degree of depth processing and demonstration.
The high-voltage switch body 1 comprises a frame 2, an energy storage transmission device, a vacuum arc extinguish chamber 3 and a conductive mechanism 4, wherein the frame 2 is provided with the energy storage transmission device and the vacuum arc extinguish chamber 3, the energy storage transmission device comprises a closing spring 5, a cam transmission mechanism, a separating spring 608 and a main shaft transmission mechanism, the upper end of the closing spring 5 is in adaptive connection with a cam sprocket 602 mechanism, the cam transmission mechanism comprises an energy storage motor 601, a cam sprocket 602, a cam central shaft 603, a cam retaining shaft 604, a cam retaining latch 605 and a needle bearing 606, the output end of the energy storage motor 601 is in adaptive connection with the periphery of the cam sprocket 602, the cam central shaft 603 is arranged in the center of the cam sprocket 602 in a penetrating way, the cam sprocket 602 is provided with the needle bearing 606, the needle bearing 606 can be in contact with one end of the cam retaining latch 605 when rotating along with the cam sprocket 602, the other end of the cam retaining latch 605 is connected with the cam retaining shaft 604, a spring connecting lever 607 is further installed on the cam central shaft 603, one end of the spring connecting lever 607 is connected with the closing spring 5 in a matching manner, the needle bearing 606 rotates along with the cam sprocket 602 in the energy storage process of the closing spring 5, and when the needle bearing 606 touches the cam holding latch 605, the closing spring 5 stops storing energy.
When the closing spring 5 is in two states of energy storage or non-energy storage, the needle bearing 606 is correspondingly in an energy storage in-place or non-energy storage position, the inductive sensor 14 is installed near the end part of the needle bearing 606, the time starting moment is given by a closing starting signal, the inductive sensor 14 is switched to input signals of the two positions of the beginning and the end of the needle bearing 606 into a switching value input channel of the monitoring controller, the monitoring controller acquires the displacement state of the needle bearing 606, judges whether the cam central shaft 603 reaches a set position or not, and further judges whether the cam central shaft 603 has faults of jamming, refusing, loosening, breaking and the like or not by combining a time strategy and the stress of the closing spring 5, and gives a fault early warning.
The opening spring 608 is connected with the main shaft transmission mechanism, the main shaft transmission mechanism can drive opening and closing, specifically, a switching signal of the inductive sensor 14 is input into a switching value input channel of the monitoring controller, the monitoring controller obtains a displacement state of the main shaft crank arm pin 11, whether the main shaft transmission mechanism reaches a set position is judged, and then whether the main shaft transmission mechanism has faults of blocking, refusing to move, loosening, breaking and the like is judged by combining a time strategy and the stress of the opening spring 608, and fault early warning is given.
The lower end of the opening spring 608 and the lower end of the insulating pull rod 8 are both provided with shaft pin sensors 12, and when the contact pressure spring 7 is in two states of opening pre-tension, pressure or working energy storage, the shaft pin sensors 12 arranged at the lower end of the opening spring 608 output measured change value signals to the monitoring controller for data processing.
A contact pressure spring 7 is arranged in the vacuum arc extinguish chamber 3, an insulating pull rod 8 is wrapped outside the contact pressure spring 7, and the lower end of the insulating pull rod 8 is connected with a brake separating spring 608 through a connecting piece. One side of the vacuum arc extinguish chamber 3 is fixedly connected with the conductive mechanism 4, the conductive mechanism 4 is provided with a pole contact arm 9, and one end of the pole contact arm 9 is provided with a plum blossom contact 10.
The whole monitoring module comprises an elastic force monitoring module, a temperature rise wireless monitoring module and a displacement monitoring module, the elastic force monitoring module comprises a plurality of shaft pin sensors 12, the shaft pin sensors 12 are electrically connected with a monitoring controller, specifically, data of the shaft pin sensors 12 are directly input into an analog input channel of the monitoring controller, filtering, amplification and analog-to-digital conversion are carried out, the shaft pin sensors 12 are arranged at the lower ends of the closing springs 5, the shaft pin sensors 12 output measurement change value signals of the closing springs 5 in an energy storage or non-energy storage state to the monitoring controller for data processing, stress values of the closing springs 5 are obtained, fatigue states of the closing springs 5 are judged, and then whether faults of the closing springs 5 occur or not is diagnosed.
The temperature rise wireless monitoring module comprises a contact wireless temperature measuring device and a plurality of wireless temperature sensors 13, the input end of the contact wireless temperature measuring device is electrically connected with a monitoring controller, the output end of the contact wireless temperature measuring device is electrically connected with the wireless temperature sensors 13, the wireless temperature sensors 13 are installed at the positions, close to the plum blossom contact 10, of the pole contact arm 9, the wireless temperature sensors 13 communicate and output the temperature change value of the junction of the plum blossom contact 10 to the contact wireless temperature measuring device, the contact wireless temperature measuring device reads the temperature data of the plum blossom contact 10 in real time, the monitoring controller judges whether the conductive loop is in poor contact or not after data processing, the resistance is increased, the temperature rise is over a safety limit value, components can be burnt, accidents and the like are caused, and fault early warning is given.
The displacement monitoring module comprises a plurality of inductive sensors 14, the inductive sensors 14 are mounted at the end parts of the needle bearings 606, and the inductive sensors 14 transmit displacement change signals of the needle bearings 606 to the monitoring controller.
The main shaft transmission mechanism is provided with a main shaft crank pin 11 and a closing holding pawl 15, the upper end of a switching-off spring 608 is connected with the closing holding pawl 15 through the main shaft crank pin 11, the end part of the main shaft crank pin 11 is provided with an inductive sensor 14, the inductive sensor 14 transmits signals of the two positions of the beginning and the end of the main shaft crank pin 11 to a monitoring controller to obtain displacement state change, specifically, the main shaft transmission mechanism respectively rotates to be in a closing position or a switching-off position after giving a closing or switching-off starting signal, the main shaft crank pin 11 is correspondingly in the closing position or the switching-off position, the inductive sensor 14 is arranged near the end part of the main shaft crank pin 11, the time starting moment is given by the closing or switching-off starting signal, the inductive sensor 14 switches input signals of the two positions of the beginning and the end of the main shaft crank pin 11 to a switching value input channel of the monitoring controller, the monitoring controller obtains the displacement state of the main shaft crank pin 11, and judging whether the main shaft transmission mechanism reaches a set position, further judging whether the main shaft rotation mechanism has faults of jamming, refusing to move, loosening, breaking and the like by combining a time strategy and spring stress, and giving fault early warning.
The monitoring system also comprises a locking module, wherein the locking module is electrically connected with the monitoring controller, when the integral monitoring module monitors fault early warning (namely the elastic force monitoring module, the temperature rise wireless monitoring module and the displacement monitoring module carry out fault early warning), the monitoring controller sends an instruction to the locking module, and the locking module provides a fault locking contact for the high-voltage switch body in real time and is used for protecting and self-locking the high-voltage switch body; when the fault is repaired, the monitoring controller can issue a command again to provide a forced unlocking function.
The monitoring platform further comprises a touch screen, and the touch screen can be used for setting and modifying the operation parameters of the high-voltage switch body 1, displaying various detection data and fault information monitored by the integral monitoring module in real time and carrying out automatic alarm processing.
It should be noted that, in the present invention, the mutual control connection manner among the monitoring platform, the overall monitoring module and the monitoring controller is easily realized by the workers in the field in the prior art, and is not the innovation point of the present invention, so the control connection relationship of the present invention is not explained in detail.
The above-mentioned embodiments are only preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, and therefore, modifications, equivalent changes, improvements, etc. made in the claims of the present invention are still included in the scope of the present invention.
Claims (10)
1. The utility model provides a high voltage switch intelligent monitoring and failure diagnosis's system which characterized in that: the high-voltage switch monitoring system comprises a high-voltage switch body (1), an integral monitoring module, a monitoring controller and a monitoring platform, wherein the integral monitoring module is arranged in the high-voltage switch body (1), the integral monitoring module is electrically connected with the monitoring controller, the monitoring controller monitors switch state information and fault information of the high-voltage switch body (1) and reports the switch state information and the fault information to the monitoring platform, and the monitoring platform stores, processes and displays the switch state information and the fault information and sends a control command to the monitoring controller for processing.
2. The system for intelligently monitoring and diagnosing the faults of the high-voltage switch according to claim 1, wherein: the high-voltage switch body (1) comprises a rack (2), an energy storage transmission device, a vacuum arc-extinguishing chamber (3) and a conductive mechanism (4), wherein the rack (2) is provided with the energy storage transmission device and the vacuum arc-extinguishing chamber (3), the energy storage transmission device comprises a closing spring (5), a cam transmission mechanism, a separating spring (608) and a main shaft transmission mechanism, the upper end of the closing spring (5) is in adaptive connection with a cam chain wheel (602) mechanism, the cam transmission mechanism comprises an energy storage motor (601), a cam chain wheel (602), a cam central shaft (603), a cam retaining shaft (604), a cam retaining pawl (605) and a needle bearing (606), the output end of the energy storage motor (601) is in adaptive connection with the periphery of the cam chain wheel (602), the cam central shaft (603) is arranged in the center of the cam chain wheel (602) in a penetrating manner, and the needle bearing (606) is arranged on the cam chain wheel (602), the needle bearing (606) can be contacted with one end of a cam holding latch (605) when rotating along with the cam chain wheel (602), the other end of the cam holding latch (605) is connected with a cam holding shaft (604), a spring crank arm (607) is further installed on the cam central shaft (603), and one end of the spring crank arm (607) is in adaptive connection with the closing spring (5); the opening spring (608) is connected with a main shaft transmission mechanism, and the main shaft transmission mechanism can drive opening and closing.
3. The system for intelligently monitoring and diagnosing the faults of the high-voltage switch according to claim 2, wherein the system comprises: be equipped with contact pressure spring (7) in vacuum interrupter (3), the outer cladding of contact pressure spring (7) has insulating pull rod (8), insulating pull rod (8) lower extreme pass through the connecting piece with separating brake spring (608) are connected.
4. The system for intelligently monitoring and diagnosing the faults of the high-voltage switch according to claim 3, wherein the system comprises: vacuum interrupter (3) one side and electrically conductive mechanism (4) fixed connection, it touches arm (9) to be equipped with utmost point post on electrically conductive mechanism (4), utmost point post touches arm (9) one end and installs plum blossom contact (10).
5. The system for intelligently monitoring and diagnosing the faults of the high-voltage switch according to claim 4, wherein the system comprises: the whole monitoring module comprises an elasticity monitoring module, a temperature rise wireless monitoring module and a displacement monitoring module, the elasticity monitoring module comprises a plurality of shaft pin sensors (12), the shaft pin sensors (12) are electrically connected with the monitoring controller, a shaft pin sensor (12) is arranged at the lower end of the closing spring (5), and the shaft pin sensor (12) outputs a measurement change value signal of the closing spring (5) in an energy storage or non-energy storage state to the monitoring controller for data processing.
6. The system for intelligently monitoring and diagnosing the faults of the high-voltage switch according to claim 5, wherein the system comprises: and the lower ends of the opening spring (608) and the insulating pull rod (8) are respectively provided with a shaft pin sensor (12), and when the contact pressure spring (7) is in two states of opening pre-tension, pressure or working energy storage, the shaft pin sensor (12) arranged at the lower end of the opening spring (608) outputs a measured change value signal to a monitoring controller for data processing.
7. The system for intelligently monitoring and diagnosing the faults of the high-voltage switch according to claim 5, wherein the system comprises: the temperature rise wireless monitoring module comprises a contact wireless temperature measuring device and a plurality of wireless temperature sensors (13), the input end of the contact wireless temperature measuring device is electrically connected with the monitoring controller, the output end of the contact wireless temperature measuring device is electrically connected with the wireless temperature sensors (13), the pole contact arm (9) is close to the plum blossom contact (10) and is provided with the wireless temperature sensors (13), the wireless temperature sensors (13) output the temperature change value of the plum blossom contact (10) contact to the contact wireless temperature measuring device in a communication mode, and the contact wireless temperature measuring device reads the temperature data of the plum blossom contact (10) in real time.
8. The system for intelligently monitoring and diagnosing the faults of the high-voltage switch according to claim 5, wherein the system comprises: the displacement monitoring module comprises a plurality of inductive sensors (14), the inductive sensors (14) are mounted at the end parts of the needle bearings (606), and the inductive sensors (14) transmit displacement change signals of the needle bearings (606) to the monitoring controller.
9. The system for intelligently monitoring and diagnosing the faults of the high-voltage switch according to claim 8, wherein: the main shaft transmission mechanism is provided with a main shaft crank pin (11) and a closing keeping pawl (15), the upper end of a breaking spring (608) is connected with the closing keeping pawl (15) through the main shaft crank pin (11), an inductive sensor (14) is installed at the end part of the main shaft crank pin (11), and the inductive sensor (14) transmits signals of the two positions of the main shaft crank pin (11) at the beginning and the end to a monitoring controller to obtain the change of a displacement state.
10. The system for intelligently monitoring and diagnosing the faults of the high-voltage switch according to claim 1, wherein: the monitoring platform further comprises a touch screen, and the touch screen can be used for setting and modifying the operation parameters of the high-voltage switch body (1), displaying various detection data and fault information monitored by the integral monitoring module in real time and carrying out automatic alarm processing.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111466881.2A CN114167273A (en) | 2021-12-03 | 2021-12-03 | Intelligent monitoring and fault diagnosis system for high-voltage switch |
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| CN202111466881.2A CN114167273A (en) | 2021-12-03 | 2021-12-03 | Intelligent monitoring and fault diagnosis system for high-voltage switch |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2023202160B1 (en) * | 2022-08-09 | 2023-06-01 | Shandong University | Method and system for diagnosing reliability of tulip contact holding spring of switch cabinet |
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