CN114609433A - Overvoltage monitoring device and method for reactive switching equipment of power distribution network - Google Patents
Overvoltage monitoring device and method for reactive switching equipment of power distribution network Download PDFInfo
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- CN114609433A CN114609433A CN202210062810.4A CN202210062810A CN114609433A CN 114609433 A CN114609433 A CN 114609433A CN 202210062810 A CN202210062810 A CN 202210062810A CN 114609433 A CN114609433 A CN 114609433A
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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
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
- G01R19/16566—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533
- G01R19/16576—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533 comparing DC or AC voltage with one threshold
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C35/00—Permanently-installed equipment
- A62C35/02—Permanently-installed equipment with containers for delivering the extinguishing substance
- A62C35/10—Containers destroyed or opened by flames or heat
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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
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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
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
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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
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
- G01R19/16528—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values using digital techniques or performing arithmetic operations
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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
- G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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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
- H05K7/20218—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures
- H05K7/20263—Heat dissipaters releasing heat from coolant
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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
- H05K7/2029—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant with phase change in electronic enclosures
- H05K7/20318—Condensers
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Abstract
The invention relates to the technical field of power distribution network monitoring devices, and particularly discloses an overvoltage monitoring device and method for reactive switching equipment of a power distribution network. The working state of the capacitor during overvoltage is monitored in real time through the cooperation of the wireless sensor and the wireless forwarding component, so that data monitoring can be effectively and remotely carried out on the capacitor during overvoltage, the convenience and the intelligence degree of capacitor maintenance work are improved, the monitoring on the operation of the capacitor during overvoltage is improved to a great extent, the maintenance efficiency is improved, the networking type remote wireless network monitoring framework is adopted to monitor the overvoltage of the capacitor during overvoltage, a worker can use the networking type remote wireless network monitoring framework according to specific requirements, the maintenance efficiency is effectively improved, the personal safety is improved, and the maintenance cost and the maintenance period are reduced.
Description
Technical Field
The invention relates to the technical field of power distribution network monitoring devices, in particular to an overvoltage monitoring device and method for reactive switching equipment of a power distribution network.
Background
The power distribution network consists of overhead lines, cables, towers, distribution transformers, isolating switches, reactive power compensators, a plurality of accessory facilities and the like, and plays a role in distributing electric energy in the power network; the power distribution network is an important public infrastructure for national economy and social development; in recent years, the construction investment of the power distribution network in China is continuously increased, the development of the power distribution network has remarkable effect, but the power utilization level is still different from the international advanced level, the development of urban and rural areas is unbalanced, and the power supply quality needs to be improved; the national energy bureau expresses about the responsible persons, and the distribution network facilities and the service systems which are integrated in cities and countryside, safe, reliable, economical, efficient, advanced in technology and environment-friendly are built, so that the investment can be ensured for the residents, and the level of the manufacturing industry can be improved.
The overvoltage is a main external cause causing insulation damage of electrical equipment and equipment failure, especially lightning overvoltage, and the amplitude of the overvoltage is far higher than the rated operating voltage of a power grid, so that the insulation level of equipment such as a voltage transformer, a lightning arrester, a transformer, a capacitor and the like is reduced, the equipment is damaged, even exploded, and great economic loss and social influence are caused.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides an overvoltage monitoring device and method for reactive switching equipment of a power distribution network.
In order to achieve the purpose, the invention adopts the following technical scheme:
the overvoltage monitoring device for the reactive switching equipment of the power distribution network comprises a bottom plate, wherein the top of the bottom plate is connected with a connecting sleeve plate through a corrugated sheath, a threaded rod is inserted on the bottom plate, the top end of the threaded rod is rotatably connected with a bearing plate, the bearing plate is positioned in the corrugated sheath, the bearing plate is connected with a fixing frame through an anti-loosening mechanism, and the fixing frame is provided with a monitoring mechanism;
the monitoring mechanism comprises a wireless sensor arranged on the fixing frame, a wireless forwarding assembly is arranged at the top of the bottom plate, a signal absorbing end of the wireless forwarding assembly is connected with the wireless sensor through a wireless signal module, a signal transmitting end of the wireless forwarding assembly is connected with a mobile phone of the user module through a mobile network, and the signal transmitting end of the wireless forwarding assembly is further connected with a user computer and a data webpage server of the user module through the Internet.
Preferably, locking mechanism is including installing the gasbag at loading board top, and the gasbag top is passed the mount and is contacted with the wireless sensor bottom, and the collecting box is installed at the bottom plate top, and the collecting box is loaded with fluorinated liquid, and the collecting box both ends communicate respectively has first bellows and second bellows, and first bellows and second bellows tip all are linked together with the gasbag, install the transfer pump in the first bellows, and the parcel has the one deck cloth that absorbs water on the second bellows.
Preferably, the wireless sensor, the collection box, the first corrugated pipe and the second corrugated pipe are all located in a corrugated sheath, the bottom end of the corrugated sheath is fixedly connected to the bottom plate, and a plurality of connecting holes are formed in a connecting sleeve plate.
Preferably, a through hole is formed in the bottom plate, an internal thread sleeve is installed in the through hole, a threaded rod is sleeved in the internal thread sleeve in a threaded manner, and the end part of the threaded rod extends to the upper part of the bottom plate and is rotatably connected to the bottom of the bearing plate; the bottom plate is provided with a sleeve, the sleeve is sleeved with a guide rod in a sliding manner, and the end part of the guide rod is fixedly connected to the bottom of the bearing plate.
Preferably, a plurality of slide bars are fixed at the bottom of the fixing frame, a plurality of sliding grooves are formed in the bearing plate, the slide bars are slidably mounted in the sliding grooves, a mounting plate is mounted at the top of the fixing frame and connected with the fixing frame through bolts, and the wireless sensor is mounted on the mounting plate.
Preferably, two backup pads are installed to bottom plate top symmetry, and the equal rigid coupling in two backup pad tops has the fixed plate, has seted up the fixed orifices on the fixed plate, and two fixed plates and wireless forwarding device all are located the ripple sheath outside.
Preferably, the signal absorption end of the wireless forwarding component is connected with the wireless sensor through a MHz wireless module, a built-in power supply is arranged in the MHz wireless module, and the built-in power supply adopts a low-power consumption MCU module.
Preferably, the wireless forwarding component can also be a wireless transceiving box, a signal absorbing end of the wireless transceiving box is connected with a wireless sensor at the lower end of the capacitor through a MHz wireless module, a signal output end of the wireless transceiving box is directly connected with a USB signal line and a mobile computer of the user module, the wireless sensor adopts a through type current sensor, and the shape structure of the wireless sensor corresponds to the structure of the capacitor.
Preferably, be provided with MCU module and liquid crystal display on the subassembly is forwardded in the wireless, the two-way port of MCU module passes through the RS module and is connected with fiber module, the input of MCU module respectively with watchdog and key-press connection, the output of MCU module is connected with the G/G module respectively, MHz wireless module and liquid crystal display's input, the output of G/G module is connected with the input of the waterproof antenna of G, MHz wireless module output and the waterproof antenna connection of MHz.
The invention discloses a working method of an overvoltage monitoring device of reactive switching equipment of a power distribution network, which comprises the following steps:
the method comprises the following steps: the wireless sensor is arranged on the mounting plate and is connected stably;
step two: the threaded rod is rotated, and the threaded rod performs spiral ascending motion in the inner threaded sleeve to drive the bearing plate to move upwards, so that the bearing plate drives the air bag, the sliding rod, the fixing frame, the mounting plate and the wireless sensor to move upwards until the wireless sensor is stably connected with the capacitor and then stops;
step three: the capacitor can be effectively monitored in real time by using the cooperation of the infinite forwarding component and the wireless sensor, and the running state of the capacitor can be monitored in real time by prompting the detection condition when the capacitor fails through short messages.
Compared with the prior art, the invention has the beneficial effects that:
1: the invention monitors the working state of the capacitor overvoltage in real time by the matching use of the wireless sensor and the wireless forwarding component, so as to effectively and remotely monitor the data of the capacitor overvoltage, increase the convenience and the intelligent degree of the capacitor maintenance work, greatly improve the monitoring of the capacitor overvoltage operation and improve the maintenance efficiency, adopt the networking type remote wireless network monitoring framework to monitor the capacitor overvoltage operation state overvoltage, the working personnel can use the system according to the specific requirements, effectively improve the maintenance efficiency, improve the personal safety, reduce the maintenance cost and the maintenance period, can effectively monitor the capacitor overvoltage condition in real time by the matching of the wireless sensor and the wireless forwarding component, and prompt the detection condition of the capacitor when the capacitor fails in time by short messages, and can effectively improve the detection timeliness, the efficiency of detection and maintenance is improved.
2: the extensible supporting force is provided for the mounting plate through the air bag, a certain compensation effect can be provided for the connection between the wireless sensor and the capacitor when the wireless sensor is mounted on the capacitor and vibrates due to the working of the capacitor, the phenomenon that the connection between the capacitor and the wireless sensor is loosened due to the vibration generated by the long-time working of the capacitor is avoided, so that the error generated by the over-voltage monitoring of the wireless sensor during the operation of the capacitor is avoided, the connection tightness between the wireless sensor and the capacitor can be always kept under the extensible supporting effect of the air bag, the real-time accurate monitoring and transmission of the over-voltage state of the wireless sensor during the operation of the capacitor are improved, meanwhile, the mounting plate can be cooled by using the fluorinated liquid in the air bag, and the high temperature generated during the operation of the wireless sensor mounted on the mounting plate is rapidly cooled, and the normal operation of the wireless sensor is ensured.
3: the invention can not only cool the wireless sensor by injecting the fluorinated liquid into the air bag through the collecting box, but also can burn the air bag when the capacitor and the wireless sensor are in fire, and the fluorinated liquid in the air bag is sprayed out to extinguish the fire of the capacitor and the wireless sensor by utilizing the non-flammable and non-conductive characteristics of the fluorinated liquid, thereby avoiding unnecessary loss caused by other electric equipment caused by the spread of the fire, and simultaneously, the fluorinated liquid which absorbs the heat of the wireless sensor in the second corrugated pipe and the air which has lower temperature relative to the fluorinated liquid which absorbs the heat in the corrugated sheath generate condensation phenomenon, a large amount of water drops can be generated on the outer wall of the second corrugated pipe, and the fluorinated liquid which absorbs the heat in the second corrugated pipe is cooled by water after being absorbed by the water absorption cloth, and the water absorbed by the water absorption cloth is evaporated under the drying action of the second corrugated pipe to ensure the sustainable water absorption performance of the water absorption cloth, meanwhile, the water absorption cloth absorbs moisture in the air to ensure the dryness of the air in the corrugated sheath, so that the influence of excessively humid air on the normal work of the wireless sensor and other parts is avoided.
Drawings
Fig. 1 is an axonometric view of an overvoltage monitoring device of a reactive switching equipment of a power distribution network, which is provided by the invention;
fig. 2 is an axonometric view of an overvoltage monitoring device of a reactive switching equipment of a power distribution network, which is provided by the invention;
fig. 3 is an axonometric view of an overvoltage monitoring device of a reactive switching equipment of a power distribution network, which is provided by the invention;
fig. 4 is a schematic structural diagram of a bearing plate of the overvoltage monitoring device of the reactive switching equipment of the power distribution network, which is provided by the invention;
fig. 5 is a schematic structural diagram of a fixing frame of the overvoltage monitoring device of the reactive switching equipment of the power distribution network, which is provided by the invention;
fig. 6 is a front view of an overvoltage monitoring device for reactive switching equipment of a power distribution network according to the present invention;
fig. 7 is a schematic structural diagram of a wireless sensor and a wireless forwarding component of an overvoltage monitoring device of a reactive switching equipment of a power distribution network according to the present invention;
fig. 8 is a schematic module diagram of a 433MHz wireless module and a watchdog of the overvoltage monitoring device of the reactive switching equipment of the power distribution network according to the present invention;
fig. 9 is a module schematic diagram of a 433MHz wireless module and an optical fiber module of the overvoltage monitoring device for reactive switching equipment of a power distribution network according to the present invention.
In the figure: 1. a base plate; 2. a user computer; 3. a data web server; 4. the internet; 5. a mobile network; 6. a wireless forwarding component; 7. a mobile phone; 8. a wireless sensor; 9. an air bag; 10. an internal thread sleeve; 11. a threaded rod; 12. a support plate; 13. a fixing plate; 14. a corrugated sheath; 15. connecting the sleeve plate; 16. a collection box; 17. a sleeve; 18. a first bellows; 19. an infusion pump; 20. water-absorbing cloth; 21. a second bellows; 22. a carrier plate; 23. a slide bar; 24. a fixed mount; 25. mounting a plate; 26. and a capacitor.
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 of the embodiments.
Referring to fig. 1-9, an overvoltage monitoring device for reactive switching equipment of a power distribution network comprises a bottom plate 1, wherein the top of the bottom plate 1 is connected with a connecting sleeve plate 15 through a corrugated sheath 14, a threaded rod 11 is inserted on the bottom plate 1, the top end of the threaded rod 11 is rotatably connected with a bearing plate 22, the bearing plate 22 is positioned in the corrugated sheath 14, the bearing plate 22 is connected with a fixing frame 24 through an anti-loosening mechanism, and the fixing frame 24 is provided with a monitoring mechanism;
the monitoring mechanism comprises a wireless sensor 8 arranged on a fixed frame 24, a wireless forwarding component 6 is arranged at the top of the bottom plate 1, a signal absorption end of the wireless forwarding component 6 is connected with the wireless sensor 8 through a wireless signal module, a signal transmitting end of the wireless forwarding component 6 is connected with a mobile phone 7 of a user module through a mobile network 5, and a signal transmitting end of the wireless forwarding component 6 is further connected with a user computer 2 and a data web server 3 of the user module through the Internet 4 respectively.
As a technical optimization scheme of the invention, the anti-loosening mechanism comprises an air bag 9 arranged at the top of a bearing plate 22, the top of the air bag 9 penetrates through a fixing frame 24 to be contacted with the bottom of a wireless sensor 8, a collecting box 16 is arranged at the top of a bottom plate 1, a fluorinated liquid is loaded in the collecting box 16, two ends of the collecting box 16 are respectively communicated with a first corrugated pipe 18 and a second corrugated pipe 21, the end parts of the first corrugated pipe 18 and the second corrugated pipe 21 are communicated with the air bag 9, an infusion pump 19 is arranged in the first corrugated pipe 18, a layer of water absorbing cloth 20 is wrapped on the second corrugated pipe 21, and the air bag 9 provides a malleable supporting force for a mounting plate 25, so that a certain compensation effect is provided for the connection between the wireless sensor 8 and a capacitor 26 when the wireless sensor 8 is arranged on the capacitor 26 and vibrates due to the work of the capacitor 26, and the phenomenon that the connection between the capacitor 26 and the wireless sensor 8 is loosened due to the vibration generated by the long-time work of the capacitor 26 is avoided The overvoltage monitoring of wireless sensor 8 when moving condenser 26 produces the error, can make wireless sensor 8 remain throughout under the extensible supporting action of gasbag 9 with condenser 26 be connected closely, improve the overvoltage condition of wireless sensor 8 when moving condenser 26 and carry out real-time accurate monitoring and transmission, the liquid of fluoridizing in usable gasbag 9 cools off mounting panel 25 again simultaneously, thereby produce high temperature with the wireless sensor 8 during operation of mounting panel 25 installation and cool off fast, guarantee wireless sensor 8's normal operating.
As a technical optimization scheme of the invention, the wireless sensor 8, the collection box 16, the first corrugated pipe 18 and the second corrugated pipe 21 are all positioned in the corrugated sheath 14, the bottom end of the corrugated sheath 14 is fixedly connected to the bottom plate 1, the connecting sleeve plate 15 is provided with a plurality of connecting holes, and the corrugated sheath 14 can provide a shielding protection effect for parts positioned in the corrugated sheath 14, so that the parts are prevented from being directly exposed to the outside, excessively aged and easily damaged by collision.
As a technical optimization scheme of the invention, a through hole is formed on a bottom plate 1, an internal thread sleeve 10 is arranged in the through hole, a threaded rod 11 is sleeved in the internal thread sleeve 10 in a threaded manner, and the end part of the threaded rod 11 extends to the upper part of the bottom plate 1 and is rotatably connected to the bottom of a bearing plate 22; install sleeve 17 on bottom plate 1, sliding sleeve has the guide bar in sleeve 17, guide bar tip rigid coupling is in loading board 22 bottom, threaded rod 11 is interior spiral rising makes loading board 22 move up including threaded sleeve 10, can highly adjust loading board 22, and then adjust the wireless sensor 8's of installation on gasbag 9 and the mounting panel 25 height, can be convenient for the later stage to dismantle wireless sensor 8, installation and maintenance, improve 8 dismouting maintenance convenience of later stage wireless sensor.
As a technical optimization scheme of the invention, a plurality of sliding rods 23 are fixed at the bottom of a fixed frame 24, a plurality of sliding grooves are formed in a bearing plate 22, the sliding rods 23 are slidably mounted in the sliding grooves, a mounting plate 25 is mounted at the top of the fixed frame 24, the mounting plate 25 is connected with the fixed frame 24 through bolts, a wireless sensor 8 is mounted on the mounting plate 25, and through the matching use of the sliding rods 23 and the sliding grooves, the sliding rods 23 can be conveniently utilized to provide a motion track limitation for the fixed frame 24 during up-and-down motion, the fixed frame 24 can keep up-and-down vertical motion tracks, and the phenomenon that the wireless sensor 8 is loosened from the capacitor 26 due to the transverse offset between the fixed frame 24 and the air bag 9 when the air bag 9 provides a flexible compensation function for the wireless sensor 8 is avoided.
As a technical optimization scheme of the invention, two supporting plates 12 are symmetrically arranged on the top of the bottom plate 1, the top ends of the two supporting plates 12 are fixedly connected with the fixing plates 13, the fixing plates 13 are provided with fixing holes, the two fixing plates 13 and the wireless forwarding device 6 are positioned on the outer sides of the corrugated sheaths 14, and the supporting plates 12 and the fixing plates 13 are matched for use, so that the device can be conveniently connected with the capacitor 26 and can be conveniently installed and fixed.
As a technical optimization scheme of the invention, a signal absorption end of the wireless forwarding component 6 is connected with the wireless sensor 8 through a 433MHz wireless module, a built-in power supply is arranged in the 433MHz wireless module and adopts a low-power consumption MCU module, the service life can be effectively prolonged by adopting the low-power consumption built-in power supply, and the built-in power supply can be mutually independent of power supply of a power grid, so that uninterrupted data acquisition and transmission are ensured, and the accuracy is improved.
As a technical optimization scheme of the invention, the wireless forwarding component 6 can also be a wireless transceiving box, a signal absorption end of the wireless transceiving box is connected with the wireless sensor 8 at the lower end of the capacitor 26 through a 433MHz wireless module, a signal output end of the wireless transceiving box is directly connected with a USB signal line and connected with a mobile computer of a user module, the wireless sensor 8 adopts a through type current sensor, and the appearance structure of the wireless sensor 8 corresponds to the structure of the capacitor 26.
As a technical optimization scheme of the invention, the wireless forwarding component 6 is provided with an MCU module and a liquid crystal display screen, a bidirectional port of the MCU module is connected with the optical fiber module through an RS485 module, an input end of the MCU module is respectively connected with a watchdog and a key, an output end of the MCU module is respectively connected with input ends of a 2G/3G/4G module, a 433MHz wireless module and a liquid crystal display screen, an output end of the 2G/3G/4G module is connected with an input end of a 4G waterproof antenna, and an output end of the 433MHz wireless module is connected with the 433MHz waterproof antenna.
The invention relates to a working method of an overvoltage monitoring device of reactive switching equipment of a power distribution network, which comprises the following steps:
the method comprises the following steps: the wireless sensor 8 is arranged on the mounting plate 25 and is firmly connected;
step two: the threaded rod 11 is rotated, the threaded rod 11 makes spiral ascending motion in the inner threaded sleeve 10 to drive the bearing plate 22 to move upwards, so that the bearing plate 22 drives the air bag 9, the sliding rod 23, the fixing frame 24, the mounting plate 25 and the wireless sensor 8 to move upwards, and the operation is stopped until the wireless sensor 8 is stably connected with the capacitor 26;
step three: the capacitor 26 can be effectively monitored in real time by using the wireless forwarding component 6 and the wireless sensor 8 in a matched manner, and the running state of the capacitor 26 can be monitored in real time by prompting the detection condition when the capacitor 26 fails in time through short messages.
When the device is used, the two supporting plates 12 and the fixing plate 13 are matched for use, so that the device is installed and fixed on a capacitor 26; the wireless sensor 8 is installed on the installation plate 25, the threaded rod 11 is rotated, the threaded rod 11 moves upwards in the inner threaded sleeve 10 in a spiral mode, the bearing plate 22 can move upwards, the height of the bearing plate 22 can be adjusted, the heights of the wireless sensor 8 installed on the air bag 9 and the installation plate 25 can be adjusted, the wireless sensor 8 can be conveniently detached, installed and maintained in the later period, the convenience of detaching, installing and maintaining the wireless sensor 8 in the later period is improved, and the wireless sensor 8 installed on the installation plate 25 is connected and fastened with the capacitor 26; the capacitor 26 can be effectively monitored in real time by using the wireless forwarding component 6 and the wireless sensor 8 in a matching way, the running state of the capacitor 26 can be timely monitored by reminding the detection condition of the capacitor 26 when the capacitor 26 fails in real time through a short message, the working state of the capacitor 26 when the capacitor 26 is in overvoltage can be monitored in real time by using the wireless sensor 8 and the wireless forwarding component 6 in a matching way, so that the data monitoring can be effectively and remotely carried out on the capacitor 26 when the capacitor 26 is in overvoltage, the convenience and the intelligent degree of the maintenance work of the capacitor 26 can be increased, the running monitoring on the capacitor 26 when the capacitor 26 is in overvoltage can be improved to a great extent, the overhauling efficiency can be improved, the running state overvoltage of the capacitor 26 when the capacitor 26 is in overvoltage can be monitored by using a networking type remote wireless network monitoring framework, a worker can use the wireless network monitoring framework according to specific requirements, the overhauling efficiency can be effectively improved, the personal safety can be improved, reduce maintenance cost and cycle, through wireless sensor 8 and the wireless cooperation of forwardding subassembly 6, can be real-time effectual monitor condenser 26 overvoltage condition to the detection condition when in time indicateing condenser 26 to break down through the SMS, can effectual improvement detect the ageing, improve the efficiency that detects and overhaul, be connected ripple sheath 14 with condenser 26, utilize ripple sheath 14 to provide certain protection effect that shelters from to its inside spare part.
Simultaneously starting the infusion pump 19 in the first corrugated pipe 18, and pumping the fluorinated liquid in the collecting tank 16 into the air bag 9 by the infusion pump 19 in the first corrugated pipe 18; the airbag 9 provides an extensible supporting force for the mounting plate 28, so that a certain compensation effect is provided for the connection between the wireless sensor 8 and the capacitor 26 when the wireless sensor 8 is mounted on the capacitor 26 and vibrates due to the operation of the capacitor 26, the phenomenon that the connection between the capacitor 26 and the wireless sensor 8 is loosened due to the vibration generated by the long-time operation of the capacitor 26 is avoided, the error of the wireless sensor 8 on the overvoltage monitoring during the operation of the capacitor 26 is avoided, the connection tightness between the wireless sensor 8 and the capacitor 26 can be always kept under the extensible supporting effect of the airbag 9, the real-time accurate monitoring and transmission of the overvoltage state during the operation of the capacitor 26 by the wireless sensor 8 are improved, meanwhile, the mounting plate can be cooled by using the fluorinated liquid in the airbag 9, and the high temperature generated during the operation of the wireless sensor mounted on the mounting plate is rapidly cooled, and the normal operation of the wireless sensor is ensured.
After the fluorinated liquid in the air bag 9 absorbs enough heat generated when the wireless sensor 8 works, the fluorinated liquid containing certain heat flows back into the collection box 16 through the second corrugated pipe 21 to be cooled; when the fluorinated liquid containing heat flows back through the second corrugated pipe 21, a condensation phenomenon is generated between the fluorinated liquid in the second corrugated pipe 21 after absorbing the heat of the wireless sensor and air in the corrugated sheath 14, which is lower in temperature relative to the fluorinated liquid after absorbing the heat, so that a large amount of water drops can be generated on the outer wall of the second corrugated pipe 21, the fluorinated liquid which is higher in temperature after absorbing the heat in the second corrugated pipe 21 is cooled by water after being absorbed by the water absorption cloth 20, the water absorbed by the water absorption cloth 20 is evaporated under the drying effect of the second corrugated pipe 21 to ensure the sustainable water absorption performance of the water absorption cloth 20, meanwhile, the moisture in the air is absorbed by the water absorption cloth 20 to ensure the dryness in the corrugated sheath 14, the influence of excessively humid air on the normal work of the wireless sensor 8 and other parts is avoided, and the use convenience and the intelligence are improved; inject into through collecting box 16 and fluoridize the liquid and not only can carry out cooling to wireless sensor 8 in to gasbag 9, can burn out gasbag 9 when condenser 26 and wireless sensor 8 conflagration take place again simultaneously, utilize the incombustible of fluoridizing liquid, non-conductive characteristic, spray out the processing of putting out a fire with the fluoridized liquid in the gasbag 9 to condenser 26 and wireless sensor 8, avoid its conflagration to spread to damage other power equipment and cause unnecessary loss.
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. The overvoltage monitoring device for the reactive switching equipment of the power distribution network comprises a bottom plate (1), and is characterized in that the top of the bottom plate (1) is connected with a connecting sleeve plate (15) through a corrugated sheath (14), a threaded rod (11) is inserted into the bottom plate (1), the top end of the threaded rod (11) is rotatably connected with a bearing plate (22), the bearing plate (22) is positioned in the corrugated sheath (14), the bearing plate (22) is connected with a fixing frame (24) through an anti-loosening mechanism, and the fixing frame (24) is provided with a monitoring mechanism;
the monitoring mechanism is including installing wireless sensor (8) on mount (24), bottom plate (1) top is installed and is wirelessly forwarded subassembly (6), the signal absorption end that wirelessly forwards subassembly (6) passes through wireless signal module and is connected with wireless sensor (8), the signal emission end that wirelessly forwards subassembly (6) passes through mobile network (5) and is connected with user module's cell-phone (7), the signal emission end that wirelessly forwards subassembly (6) still passes through internet (4) and is connected with user module's user computer (2) and data web server (3) respectively.
2. The overvoltage monitoring device for the reactive switching equipment of the power distribution network according to claim 1, wherein the anti-loosening mechanism comprises an air bag (9) mounted on the top of a bearing plate (22), the top of the air bag (9) penetrates through a fixing frame (24) to be in contact with the bottom of the wireless sensor (8), a collecting box (16) is mounted on the top of the bottom plate (1), fluorinated liquid is filled in the collecting box (16), a first corrugated pipe (18) and a second corrugated pipe (21) are respectively communicated with two ends of the collecting box (16), the end portions of the first corrugated pipe (18) and the second corrugated pipe (21) are both communicated with the air bag (9), an infusion pump (19) is mounted in the first corrugated pipe (18), and a layer of water absorbent cloth (20) is wrapped on the second corrugated pipe (21).
3. The overvoltage monitoring device for the reactive switching equipment of the power distribution network according to claim 1, wherein the wireless sensor (8), the collection box (16), the first corrugated pipe (18) and the second corrugated pipe (21) are all located in a corrugated sheath (14), the bottom end of the corrugated sheath (14) is fixedly connected to the bottom plate (1), and a plurality of connecting holes are formed in the connecting sleeve plate (15).
4. The overvoltage monitoring device for the reactive switching equipment of the power distribution network according to claim 1, wherein a through hole is formed in the bottom plate (1), an internal thread sleeve (10) is installed in the through hole, a threaded rod (11) is sleeved in the internal thread sleeve (10) in a threaded manner, and the end of the threaded rod (11) extends to the upper side of the bottom plate (1) and is rotatably connected to the bottom of the bearing plate (22); the bottom plate (1) is provided with a sleeve (17), the sleeve (17) is sleeved with a guide rod in a sliding mode, and the end portion of the guide rod is fixedly connected to the bottom of the bearing plate (22).
5. The overvoltage monitoring device for the reactive switching equipment of the power distribution network according to claim 1, wherein a plurality of sliding rods (23) are fixed at the bottom of the fixing frame (24), a plurality of sliding grooves are formed in the bearing plate (22), the sliding rods (23) are slidably mounted in the sliding grooves, a mounting plate (25) is mounted at the top of the fixing frame (24), the mounting plate (25) is connected with the fixing frame (24) through bolts, and the wireless sensor (8) is mounted on the mounting plate (25).
6. The overvoltage monitoring device for the reactive switching equipment of the power distribution network according to claim 1, wherein two supporting plates (12) are symmetrically installed at the top of the bottom plate (1), a fixing plate (13) is fixedly connected to the top ends of the two supporting plates (12), a fixing hole is formed in the fixing plate (13), and the two fixing plates (13) and the wireless forwarding device (6) are located outside the corrugated sheath (14).
7. The overvoltage monitoring device for the reactive switching equipment of the power distribution network according to claim 1, wherein a signal absorption end of the wireless forwarding component (6) is connected with the wireless sensor (8) through a 433MHz wireless module, a built-in power supply is arranged inside the 433MHz wireless module, and the built-in power supply adopts a low-power consumption MCU module.
8. The overvoltage monitoring device for the reactive switching equipment of the power distribution network according to claim 1, wherein the wireless forwarding component (6) can be a wireless transceiving box, a signal absorbing end of the wireless transceiving box is connected with a wireless sensor (8) at the lower end of the capacitor (26) through a 433MHz wireless module, a signal output end of the wireless transceiving box is directly connected with a USB signal line and a mobile computer of a user module, the wireless sensor (8) is a straight-through current sensor, and the shape and structure of the wireless sensor (8) correspond to the structure of the capacitor (26).
9. The overvoltage monitoring device for the reactive switching equipment of the power distribution network according to claim 1, wherein an MCU module and a liquid crystal display screen are arranged on the wireless forwarding component (6), a bidirectional port of the MCU module is connected with the optical fiber module through an RS485 module, an input end of the MCU module is respectively connected with the watchdog and the button, an output end of the MCU module is respectively connected with input ends of the 2G/3G/4G module, the 433MHz wireless module and the liquid crystal display screen, an output end of the 2G/3G/4G module is connected with an input end of the 4G waterproof antenna, and an output end of the 433MHz wireless module is connected with the 433MHz waterproof antenna.
10. The operation method of the overvoltage monitoring device for the reactive switching equipment of the power distribution network according to the claims 1 to 9, characterized in that the operation method comprises the following steps:
the method comprises the following steps: the wireless sensor (8) is arranged on the mounting plate (25) and is connected firmly;
step two: the threaded rod (11) is rotated, the threaded rod (11) makes spiral ascending motion in the inner threaded sleeve (10) to drive the bearing plate (22) to move upwards, so that the bearing plate (22) drives the air bag (9), the sliding rod (23), the fixing frame (24), the mounting plate (25) and the wireless sensor (8) to move upwards until the wireless sensor (8) is stably connected with the capacitor (26) and then stops;
step three: the capacitor (26) can be effectively monitored in real time by using the infinite forwarding component (6) and the wireless sensor (8) in a matched manner, and the running state of the capacitor (26) can be monitored in real time by the detection condition when the capacitor (26) is in fault timely prompted through a short message.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210062810.4A CN114609433A (en) | 2022-01-19 | 2022-01-19 | Overvoltage monitoring device and method for reactive switching equipment of power distribution network |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210062810.4A CN114609433A (en) | 2022-01-19 | 2022-01-19 | Overvoltage monitoring device and method for reactive switching equipment of power distribution network |
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| CN114609433A true CN114609433A (en) | 2022-06-10 |
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| CN202210062810.4A Pending CN114609433A (en) | 2022-01-19 | 2022-01-19 | Overvoltage monitoring device and method for reactive switching equipment of power distribution network |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116316111A (en) * | 2023-03-22 | 2023-06-23 | 国网安徽省电力有限公司六安市城郊供电公司 | Power distribution network overvoltage monitoring equipment based on optical fiber information communication |
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2022
- 2022-01-19 CN CN202210062810.4A patent/CN114609433A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116316111A (en) * | 2023-03-22 | 2023-06-23 | 国网安徽省电力有限公司六安市城郊供电公司 | Power distribution network overvoltage monitoring equipment based on optical fiber information communication |
| CN116316111B (en) * | 2023-03-22 | 2023-08-18 | 国网安徽省电力有限公司六安市城郊供电公司 | Power distribution network overvoltage monitoring equipment based on optical fiber information communication |
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