CN114552532A - Combined ferromagnetic resonance quick elimination device and system - Google Patents
Combined ferromagnetic resonance quick elimination device and system Download PDFInfo
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- CN114552532A CN114552532A CN202210069629.6A CN202210069629A CN114552532A CN 114552532 A CN114552532 A CN 114552532A CN 202210069629 A CN202210069629 A CN 202210069629A CN 114552532 A CN114552532 A CN 114552532A
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- elimination
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- 230000008030 elimination Effects 0.000 title claims abstract description 110
- 238000003379 elimination reaction Methods 0.000 title claims abstract description 110
- 230000005350 ferromagnetic resonance Effects 0.000 title claims abstract description 42
- 229910010271 silicon carbide Inorganic materials 0.000 claims abstract description 17
- 239000011347 resin Substances 0.000 claims description 42
- 229920005989 resin Polymers 0.000 claims description 42
- 238000005192 partition Methods 0.000 claims description 37
- 239000000077 insect repellent Substances 0.000 claims description 33
- 230000007935 neutral effect Effects 0.000 claims description 21
- 241000255925 Diptera Species 0.000 claims description 16
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 15
- 230000001846 repelling effect Effects 0.000 claims description 14
- 230000017525 heat dissipation Effects 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 5
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 238000005457 optimization Methods 0.000 description 8
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- 238000010586 diagram Methods 0.000 description 2
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- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- SOKRNBGSNZXYIO-UHFFFAOYSA-N Resinone Natural products CC(=C)C1CCC2(C)C(O)CC3(C)C(CCC4C5(C)CCC(=O)C(C)(C)C5CCC34C)C12 SOKRNBGSNZXYIO-UHFFFAOYSA-N 0.000 description 1
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Images
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/04—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for transformers
- H02H7/05—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for transformers for capacitive voltage transformers, e.g. against resonant conditions
-
- 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
- H05K5/00—Casings, cabinets or drawers for electric apparatus
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/40—Arrangements for reducing harmonics
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
The invention relates to the field of ferromagnetic resonance elimination, and particularly discloses a combined type ferromagnetic resonance quick elimination device and a combined type ferromagnetic resonance quick elimination system. Through the setting of harmonic elimination system for carborundum harmonic elimination module and temperature sensing harmonic elimination module carry out effectual elimination to the different ferroresonance that produce in the system, have improved ferroresonance's elimination efficiency, and avoided in inserting a large amount of components and parts circuit system, and then caused the condition of circuit system operation burden increase to take place.
Description
Technical Field
The invention relates to a resonance elimination device, in particular to a combined type ferromagnetic resonance quick elimination device and a system, and belongs to the field of ferromagnetic resonance elimination.
Background
In both a neutral point direct grounding system and a non-direct grounding system, a ferromagnetic resonance phenomenon is caused, so that a fuse wire of the mutual inductor is fused, burnt or exploded, and the safe operation of the system is seriously influenced.
In the prior art, the two modes of silicon carbide harmonic elimination and thermistor harmonic elimination are often adopted, the two modes are different in the field of excellence in harmonic elimination, and in a system which is coincident with the two excellence in the field, multiple components are often required to be installed to carry out combined harmonic elimination, the operation burden of the system is increased, and great troubles are caused.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a combined type ferromagnetic resonance quick elimination device and a combined type ferromagnetic resonance quick elimination system.
The purpose of the invention can be realized by the following technical scheme:
the utility model provides a modular ferroresonance's quick elimination device and system, is including the harmonic elimination device body that is provided with harmonic elimination system, harmonic elimination device body goes up and down to be installed in one side of the cabinet body, and one side of the cabinet body articulates there is the cabinet door, and the junction of cabinet door and the cabinet body is provided with the gasbag, and the gasbag intercommunication has seal assembly, and the cabinet body is kept away from one side of cabinet door and is offered and be used for radiating rectangle hole groove, and the center department in this hole groove transversely installs the mosquito repellent fluorescent tube, and the top and the equal centre gripping in bottom of mosquito repellent fluorescent tube install the inflation resin that absorbs water, and the inflation resin transmission that absorbs water is connected with tightly decides the subassembly.
Preferably, one side fixedly connected with telescopic link of cabinet door is kept away from to the bottom of the cabinet body, and the flexible end fixedly connected with baffle at telescopic link top has seted up a plurality of even louvres on the baffle, and baffle slidable mounting is in one side of the cabinet body, and harmonic elimination device body fixed connection is in the one side that the baffle is close to the cabinet door, fixedly connected with wiring board on the top wallboard inner wall of the cabinet body, has seted up the plug wire hole on the wiring board.
Preferably, the cabinet body is kept away from the equal fixed mounting in the inside both sides of wallboard of cabinet door one side has the curb plate, baffle sliding connection in the track between the inner wall of the cabinet body and the curb plate, the top both sides army fixedly connected with connecting rod of baffle, the baffle passes through connecting rod and seal assembly intercommunication, the top fixedly connected with wiring contact of harmonic elimination device body, wiring contact and plug-in wire hole activity are pegged graft, harmonic elimination device body passes through wiring contact and wiring board electric connection, the bottom electric connection of harmonic elimination device body has the earth connection.
Preferably, seal assembly includes the piston board of fixed connection at the connecting rod top, and the piston board slides and cup joints in the inside of piston cylinder, and the equal fixedly connected with piston cylinder in the top both sides that cabinet door one side wallboard was kept away from to the internal portion of cabinet, and the one end intercommunication that the baffle was kept away from to the piston cylinder has violently the pipe, violently the pipe is seted up in the top wallboard of the cabinet body, and the middle section department intercommunication of violently managing has communicating pipe, and the one end and the gasbag intercommunication of violently managing are kept away from to communicating pipe.
Preferably, equal fixedly connected with mounting panel on the central department both sides lateral wall board in rectangle hole groove, the mosquito repellent fluorescent tube is installed to the mutually opposite one side of two mounting panels, and the equal slidable mounting in top and the below of mosquito repellent fluorescent tube has the diaphragm, and the equal a plurality of collars of fixedly connected with in one side of mosquito repellent fluorescent tube is kept away from to the diaphragm, has all cup jointed the water-swelling resin in the collar, and the diameter all is offered in the mutually opposite one side of two diaphragms recess that is greater than the mosquito repellent fluorescent tube, and the diaphragm is prepared by printing opacity resin.
Preferably, tightly decide the subassembly include with the friction pad of baffle activity butt, the friction pad keeps away from a plurality of batter posts of one end fixedly connected with of baffle, and a plurality of guide slots have been seted up at the top in rectangular hole groove, and the top that is located the water swelling resin of mosquito repellent fluorescent tube top is pegged graft with the guide slot, and the batter post is also pegged graft with the guide slot and the batter post is perpendicular with the guide slot, and the friction pad was kept away from to the batter post one end and the water swelling resin one end activity butt of keeping away from the collar.
Preferably, slidable mounting has the scraper blade that the cross-section is right triangle on the bottom wallboard in rectangle hole groove, and one side wallboard and the baffle activity butt of scraper blade, the inclined plane butt of the one end that the collar was kept away from to the water-swelling resin that is located mosquito repellent fluorescent tube below and scraper blade, one side fixedly connected with that the baffle is used for preventing the derailment of water-swelling resin that the scraper blade is kept away from the baffle.
Preferably, the spout has all been seted up to the center department both sides in rectangle hole groove, is located the equal fixedly connected with slider in both ends of the diaphragm of mosquito repellent fluorescent tube both sides, fixedly connected with fixed bar in the spout, and the slider slides and cup joints on the fixed bar, has cup jointed the spring on the fixed bar, and the both ends difference fixed connection of spring is on the mutual opposite one side wallboard of two sliders.
A harmonic elimination system comprises an on-off module, wherein the on-off module is electrically connected with a silicon carbide harmonic elimination module and a thermosensitive harmonic elimination module through a control module;
the silicon carbide harmonic elimination module and the thermosensitive harmonic elimination module are connected in parallel through the on-off module;
the silicon carbide resonance elimination module and the heat-sensitive resonance elimination module are both electrically connected with the wiring board and the grounding wire;
the control module is in communication connection with the on-off module;
when the system generates ferromagnetic resonance overvoltage, the silicon carbide resonance elimination module is used for a 10KV system, and the ferromagnetic resonance overvoltage of the system is eliminated when the neutral point voltage is lower than 3 KV; the device is also used for eliminating a 35KV system, and the neutral point voltage is lower than 5KV to eliminate the ferromagnetic resonance overvoltage of the system;
when the system generates ferromagnetic resonance overvoltage, the thermosensitive detuning module is used for a 10KV system, and the neutral point voltage is higher than 3KV to eliminate the ferromagnetic resonance overvoltage of the system; the method is also used for eliminating a 35KV system, and the neutral point voltage is higher than 5KV to eliminate the ferromagnetic resonance overvoltage of the system.
Preferably, the switching module includes two switches of GN1 and GN2, and the on/off states of the two switches of GN1 and GN2 are switched on or off by the control module.
The invention has the beneficial effects that:
1. through the setting of harmonic elimination system for carborundum harmonic elimination module and temperature sensing harmonic elimination module carry out effectual elimination to the different ferroresonance that produce in the system, have improved ferroresonance's elimination efficiency, and avoided in inserting a large amount of components and parts circuit system, and then caused the condition of circuit system operation burden increase to take place.
2. Through the setting in gasbag and rectangle hole groove, the inflation of gasbag and then make the gap of junction between the cabinet door and the cabinet body be effectively plugged up, can effectually prevent that external humid gas from entering into the inside of the cabinet body, simultaneously to some special cases, for example there is the condition of ponding on ground, also can play certain guard action. The setting in rectangle hole groove can carry out effectual heat dissipation to the harmonic elimination device body through the radiating hole of seting up on the baffle, and the position of seting up in rectangle hole groove also has certain height apart from ground, so also can play certain effect that prevents ponding.
3. Through the setting of the swelling resin that absorbs water, the swelling resin that absorbs water can effectually prevent that vapor from entering into the cabinet body through the rectangle hole groove, plays effectual waterproof effect to the cabinet body. The water-absorbing expansion resin enables the pressure between the friction pad and the partition plate to be effectively increased through the inclined column on the one hand, and then plays a promoting role in stabilizing the partition plate, on the other hand, the partition plate is effectively kept away from dust on one side of the resonance elimination device body through the scraper plate to be effectively scraped, the heat dissipation hole is prevented from being plugged by the dust, and then the heat dissipation of the resonance elimination device body is effectively guaranteed.
4. The setting of mosquito repellent fluorescent tube, on the one hand can prevent that external mosquito from entering into the cabinet body, on the other hand also can make the cabinet body play striking effect through the yellow light that the mosquito repellent fluorescent tube sent, secondly, the heat that the mosquito repellent fluorescent tube circular telegram produced also can carry out effectual concentrated collection through the recess of seting up on the diaphragm, and then prevent that the heat that the mosquito repellent fluorescent tube produced from entering into the cabinet body, play the hindrance effect to the heat dissipation of harmonic device body, also promote volatilizing of mosquito repellent fluorescent tube all around vapor, prevent that vapor from entering into the cabinet body through the mosquito repellent fluorescent tube periphery of the mutually opposite one side of two diaphragms.
5. Through the setting of telescopic link, before eliminating the electric energy processing to harmonic elimination device body, there is blockking of the cabinet body, cabinet door and baffle all the time between technical staff and the harmonic elimination device body, has improved technical staff's security greatly.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic view of the overall structure of the present invention from another view angle.
FIG. 3 is a schematic view showing the mounting structure of the water-absorbent resin according to the present invention.
FIG. 4 is a schematic sectional view showing the structure of the water-absorbent resin of the present invention.
FIG. 5 is a schematic sectional view showing another perspective of the water-swellable resin of the present invention.
FIG. 6 is an enlarged view of the part A shown in FIG. 5 according to the present invention.
Fig. 7 is a schematic sectional view of the piston cylinder according to the present invention.
Fig. 8 is a schematic view of the connection structure of the communication tube and the airbag of the present invention.
Fig. 9 is a schematic circuit diagram of the detuning system of the present invention.
Fig. 10 is a system diagram of the detuning system of the present invention.
In the figure: 1. a resonance elimination device body; 2. a cabinet body; 3. a cabinet door; 4. a wiring contact; 5. a partition plate; 6. a piston cylinder; 7. a connecting rod; 8. a telescopic rod; 9. a ground line; 10. heat dissipation holes; 11. a wiring board; 12. a wire insertion hole; 13. a friction pad; 14. a water-swellable resin; 15. a transverse plate; 16. mounting a plate; 17. a mosquito-repellent lamp tube; 18. a squeegee; 19. a baffle plate; 20. a spring; 21. an oblique column; 22. a slider; 23. a mounting ring; 24. an air bag; 25. a chute; 26. a piston plate; 27. a transverse tube; 28. a communicating pipe; 29. a side plate; 30. a guide groove; 31. a fixing rod; 33. and (4) a groove.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-10, a combined type ferromagnetic resonance quick elimination device and system comprises a resonance elimination device body 1 provided with a resonance elimination system, the resonance elimination device body 1 is installed at one side of a cabinet body 2 in a lifting mode, a cabinet door 3 is hinged to one side of the cabinet body 2, an air bag 24 is arranged at the joint of the cabinet door 3 and the cabinet body 2, the air bag 24 is communicated with a sealing assembly, a rectangular hole groove used for heat dissipation is formed in one side, away from the cabinet door 3, of the cabinet body 2, a mosquito repelling lamp tube 17 is transversely installed at the center of the hole groove, water absorbing expansion resin 14 is installed at the top and the bottom of the mosquito repelling lamp tube 17 in a clamping mode, and the water absorbing expansion resin 14 is in transmission connection with a fastening assembly.
As a technical optimization scheme of the invention, one side of the bottom of the cabinet body 2, which is far away from the cabinet door 3, is fixedly connected with an expansion link 8, the expansion link end at the top of the expansion link 8 is fixedly connected with a partition plate 5, the partition plate 5 is provided with a plurality of uniform heat dissipation holes 10, the partition plate 5 is slidably mounted at one side of the cabinet body 2, the resonance elimination device body 1 is fixedly connected at one side of the partition plate 5, which is close to the cabinet door 3, the inner wall of the wall plate at the top of the cabinet body 2 is fixedly connected with a wiring board 11, and the wiring board 11 is provided with a plug wire hole 12.
As a technical optimization scheme of the invention, side plates 29 are fixedly mounted on both sides of the inner portion of a wall plate on one side of a cabinet body 2 far away from a cabinet door 3, a partition plate 5 is connected in a track between the inner wall of the cabinet body 2 and the side plates 29 in a sliding manner, connecting rods 7 are fixedly connected on both sides of the top of the partition plate 5, the partition plate 5 is communicated with a sealing assembly through the connecting rods 7, a wiring contact 4 is fixedly connected to the top of a resonance elimination device body 1, the wiring contact 4 is movably inserted into a wire insertion hole 12, the resonance elimination device body 1 is electrically connected with a wiring board 11 through the wiring contact 4, and a grounding wire 9 is electrically connected to the bottom of the resonance elimination device body 1.
As a technical optimization scheme of the invention, the sealing assembly comprises a piston plate 26 fixedly connected to the top of the connecting rod 7, the piston plate 26 is slidably sleeved inside the piston cylinder 6, the piston cylinder 6 is fixedly connected to both sides of the top of a wall plate on one side, far away from the cabinet door 3, inside the cabinet body 2, one end, far away from the partition plate 5, of the piston cylinder 6 is communicated with a transverse pipe 27, the transverse pipe 27 is arranged in the wall plate on the top of the cabinet body 2, a communication pipe 28 is communicated with the middle section of the transverse pipe 27, and one end, far away from the transverse pipe 27, of the communication pipe 28 is communicated with the air bag 24.
As a technical optimization scheme of the mosquito repelling lamp, mounting plates 16 are fixedly connected to two side wall plates at the center of a rectangular hole groove, mosquito repelling lamp tubes 17 are mounted on opposite sides of the two mounting plates 16, transverse plates 15 are slidably mounted above and below the mosquito repelling lamp tubes 17, a plurality of mounting rings 23 are fixedly connected to one sides of the transverse plates 15 far away from the mosquito repelling lamp tubes 17, water-absorbent expanded resin 14 is sleeved in the mounting rings 23, grooves 33 with the diameter larger than that of each mosquito repelling lamp tube 17 are formed in opposite sides of the two transverse plates 15, and the transverse plates 15 are made of light-transmitting resin.
As a technical optimization scheme of the mosquito repelling lamp, the fastening assembly comprises a friction pad 13 movably abutted against the partition plate 5, one end, far away from the partition plate 5, of the friction pad 13 is fixedly connected with a plurality of inclined columns 21, the top of a rectangular hole groove is provided with a plurality of guide grooves 30, the top of the water-absorbing expansion resin 14 positioned above the mosquito repelling lamp tube 17 is inserted into the guide grooves 30, the inclined columns 21 are also inserted into the guide grooves 30, the inclined columns 21 are perpendicular to the guide grooves 30, and one end, far away from the friction pad 13, of each inclined column 21 is movably abutted against one end, far away from the mounting ring 23, of the water-absorbing expansion resin 14.
As a technical optimization scheme of the invention, a scraping plate 18 with a right-angled triangle section is slidably mounted on a bottom wall plate of the rectangular hole groove, one side wall plate of the scraping plate 18 is movably abutted with the partition plate 5, one end, far away from the mounting ring 23, of the water-absorbent expansion resin 14 positioned below the mosquito-repellent lamp tube 17 is abutted with an inclined surface of the scraping plate 18, and one side, far away from the partition plate 5, of the scraping plate 18 is fixedly connected with a baffle plate 19 for preventing the water-absorbent expansion resin 14 from derailing.
As a technical optimization scheme of the mosquito-repellent lamp, sliding grooves 25 are formed in two sides of the center of each rectangular hole groove, sliding blocks 22 are fixedly connected to two ends of a transverse plate 15 located on two sides of a mosquito-repellent lamp tube 17, fixing rods 31 are fixedly connected to the inside of each sliding groove 25, the sliding blocks 22 are sleeved on the fixing rods 31 in a sliding mode, springs 20 are sleeved on the fixing rods 31, and two ends of each spring 20 are fixedly connected to one opposite side wall plate of each sliding block 22.
A harmonic elimination system comprises an on-off module, wherein the on-off module is electrically connected with a silicon carbide harmonic elimination module and a thermosensitive harmonic elimination module through a control module;
the silicon carbide harmonic elimination module and the thermosensitive harmonic elimination module are connected in parallel through the on-off module;
the silicon carbide resonance elimination module and the heat-sensitive resonance elimination module are electrically connected with the wiring board 11 and the grounding wire 9;
the control module is in communication connection with the on-off module;
when the system generates ferromagnetic resonance overvoltage, the silicon carbide resonance elimination module is used for a 10KV system, and the ferromagnetic resonance overvoltage of the system is eliminated when the neutral point voltage is lower than 3 KV; the device is also used for eliminating a 35KV system, and the neutral point voltage is lower than 5KV to eliminate the ferromagnetic resonance overvoltage of the system;
when the system generates ferromagnetic resonance overvoltage, the thermosensitive detuning module is used for a 10KV system, and the neutral point voltage is higher than 3KV to eliminate the ferromagnetic resonance overvoltage of the system; the method is also used for eliminating a 35KV system, and the neutral point voltage is higher than 5KV to eliminate the ferromagnetic resonance overvoltage of the system.
The control module is used for controlling the on-off of the GN1 switch and the GN2 switch in the on-off module, and a detector for detecting ferromagnetic resonance is arranged in the control module.
As a technical optimization scheme of the invention, the on-off module comprises two switches of GN1 and GN2, and the on-off states of the two switches of GN1 and GN2 are switched on or switched off by the control module. The control module is provided with a controller for controlling GN1 and GN2, the GN1 switch is in a long-term closed state, and a ferromagnetic resonance overvoltage with the neutral point voltage lower than 3KV is detected in a 10KV system by the detector; in a 350KV system, when the neutral point voltage is lower than the ferromagnetic resonance overvoltage of 5KV, the detector feeds back a signal to the background control system, after the signal is received by the background control system, an execution command is transmitted to the controller, and after the execution command is received by the controller, the GN2 is in an open state, the GN1 is closed and does not act, so that the silicon carbide resonance elimination module forms a passage in the resonance elimination device body 1. Detecting a ferromagnetic resonance overvoltage of which the neutral point voltage is higher than 3KV in a 10KV system by a detector; in a 350KV system, when the neutral point voltage is higher than the ferroresonance overvoltage of 5KV, the detector will feed back a signal to the background control system, and after receiving the signal, the background control system will transmit an execution command to the controller, and after receiving the execution command, the controller makes GN2 in a closed state and GN1 disconnected, so that the thermosensitive harmonic elimination module forms a passage in the harmonic elimination device body 1.
When the harmonic elimination system carries out harmonic elimination operation:
logic 1:
when the 10KV system has ferromagnetic resonance, the neutral point voltage is lower than 3 KV;
when the 350KV system has ferromagnetic resonance, the neutral point voltage is lower than 5 KV; the controller closes switch GN1 and the silicon carbide detuning device is used to cancel the ferroresonant overvoltage, and the system recovers after the cancellation.
Logic 2:
when the 10KV system has ferromagnetic resonance, the neutral point voltage is higher than 3 KV;
when the 350KV system has ferromagnetic resonance, the neutral point voltage is higher than 5 KV; the controller closes switch GN2 and the thermal sensitive detuning device is used to eliminate the ferroresonance overvoltage, and the system recovers after elimination.
When the resonance elimination device is used, the extension of the telescopic rod 8 is controlled after the cabinet door 3 is closed, in the extension process of the telescopic rod 8, the telescopic rod 8 can push the partition plate 5 to drive the resonance elimination device body 1 to ascend, the resonance elimination device body 1 ascends, on one hand, the grounding wire 9 of the disc at the bottom of the cabinet body 2 can be pulled to extend, on the other hand, the wiring contact 4 can be inserted into the wire insertion hole 12, so that the resonance elimination device body 1 and the voltage transformer form a passage, and the resonance elimination device body 1 can eliminate ferromagnetic resonance generated in a circuit.
In the process that the telescopic rod 8 pushes the partition plate 5 to rise, the partition plate 5 can push the connecting rod 7 to enable the piston plate 26 to rise, the rising of the piston plate 26 extrudes gas in the piston cylinder 6, the gas in the piston cylinder 6 enters the transverse tube 27, the gas enters the transverse tube 27 and then enters the air bag 24 through the communicating tube 28, and the cabinet door 3 is closed at the moment, so that the gas enters the air bag 24 and then enables the air bag 24 to expand. The inflation of gasbag 24 and then make the gap of junction between cabinet door 3 and the cabinet body 2 blocked up by effectual shutoff, can effectually prevent that external humid gas from entering into the inside of the cabinet body 2, simultaneously to some special cases, for example, there is the condition of ponding on ground, also can play certain guard action, harmonic elimination device body 1 can rise under the promotion of telescopic link 8, there is certain distance apart from ground, so when there is a small amount of ponding on ground, the device still can operate, gasbag 24 also can prevent that ponding from entering into the cabinet body 2 simultaneously.
When the telescopic link 8 promotes harmonic elimination device body 1 to move to wiring contact 4 and peg graft and enter into plug wire hole 12, baffle 5 can move to the side in rectangle hole groove, and then makes the rectangle hole groove carry out effectual heat dissipation to harmonic elimination device body 1 through louvre 10 of seting up on the baffle 5, and the position of seting up in rectangle hole groove also has certain height apart from ground, so also can play certain effect that prevents ponding. Baffle 5 is after the side of moving to the rectangular hole groove, and the top side wallboard of baffle 5 can carry out effectual butt with friction pad 13, and friction pad 13 can produce certain frictional force after 5 butts with the baffle, can alleviate baffle 5 that telescopic link 8 bore and the reaction force that gas applyed to baffle 5 in the pressure of harmonic elimination device body 1 and the piston tube 6, has improved the stability of baffle 5 and harmonic elimination device body 1 installation greatly.
After will eliminating harmonic device body 1 and installing, make mosquito repellent fluorescent tube 17 circular telegram, and keep the normal bright state, on the one hand can prevent that external mosquito from entering into the cabinet body 2, on the other hand also can make the cabinet body 2 play striking effect through the yellow light that mosquito repellent fluorescent tube 17 sent, secondly, the heat that mosquito repellent fluorescent tube 17 circular telegram produced also can carry out effectual concentrated collection through the recess 33 of seting up on the diaphragm 15, and then prevent that the heat that mosquito repellent fluorescent tube 17 produced from entering into the cabinet body 2, play the hindrance effect to the heat dissipation of harmonic device body 1, also promote the volatilizing of the peripheral vapor of mosquito repellent fluorescent tube 17, prevent that vapor from entering into the cabinet body 2 through the mosquito repellent fluorescent tube 17 periphery of two diaphragms 15 opposite one side.
The water-absorbing expansion resin 14 can absorb the water vapor in the air in the rectangular hole groove, so that the water vapor in the air is prevented from entering the cabinet body 2, the drying in the cabinet body 2 is effectively ensured, and the water-absorbing expansion resin 14 expands after absorbing water and can extrude the two transverse plates 15, the scraping plates 18 and the inclined columns 21. When the water-absorbent expanded resin 14 extrudes the transverse plate 15 and the inclined column 21 which are positioned above, on one hand, the transverse plate 15 extrudes the spring 20, so that the transverse plate 15 is closer to the mosquito-repellent lamp tube 17, the transverse plate 15 effectively disperses the light emitted by the mosquito-repellent lamp tube 17, and the heat emitted by the mosquito-repellent lamp tube 17 is more fully shielded and shielded; on the other hand, the water-swellable resin 14 can also squeeze the inclined column 21, and the water-swellable resin 14 squeezes the inclined column 21 to enable the inclined column 21 to move towards one end close to the friction pad 13, so that the friction pad 13 moves towards the direction of the partition board 5, the pressure between the friction pad 13 and the partition board 5 is effectively increased, and the stability of the partition board 5 is promoted.
When the water-absorbing expansion resin 14 extrudes the transverse plate 15 and the scraper 18 which are positioned above, on the one hand, the transverse plate 15 can extrude the spring 20, so that the transverse plate 15 is closer to the mosquito-repellent lamp tube 17, on the other hand, the scraper 18 can be extruded, so that the scraper 18 can be attached to the partition plate 5 more, so that the resonance elimination device body 1 can be effectively scraped by dust which is far away from one side of the resonance elimination device body 1 by the partition plate 5 when being overhauled, the heat dissipation holes 10 can be prevented from being blocked by the dust, and the heat dissipation of the resonance elimination device body 1 can be effectively guaranteed.
When overhauing the tuning device body 1, the technical staff is through pushing down the water-swelling resin 14 that is located the top, make the disconnection of being connected between water-swelling resin 14 and the guide slot 30, in this process, spring 20 can further shrink, make water-swelling resin 14 no longer extrude batter post 21, then control telescopic link 8 shrink, because batter post 21 is no longer extruded, so pressure between friction pad 13 and the baffle 5 reduces, and then make friction pad 13 can not play the hindrance effect to the decline of baffle 5, and the water-swelling resin 14 that is located the below can continue to extrude scraper blade 18, and then make baffle 5 when descending, scraper blade 18 can effectually scrape the dust and the attached crop on baffle 5 surface down, and then guarantee baffle 5 to the heat dissipation of tuning device body 1.
When 8 contractions of telescopic link to the shortest state, wiring contact 4 and the separation of plug wire hole 12, gas in the gasbag 24 is also taken into in the piston section of thick bamboo 6, and then make gasbag 24 no longer block up the junction between cabinet door 3 and the cabinet body 2, make harmony eliminating device body 1 outage simultaneously again, and earth connection 9 is at this in-process, on the one hand can the wraparound on the bottom wallboard of the cabinet body 2, on the other hand also can ground the inside remaining electric quantity of harmony eliminating device body 1, make no longer contain the electric energy in the harmony eliminating device body 1, the security of maintainer when overhauing the harmony eliminating device body 1 obtains great improvement. In the whole process, before the resonance elimination device body 1 is subjected to electric energy elimination treatment, the blocking of the cabinet body 2, the cabinet door 3 and the partition plate 5 always exists in the technical personnel and the resonance elimination device body 1, and the safety of the technical personnel is greatly improved. After the overhaul is finished, the cabinet door 3 is closed firstly, then the rest water-absorbing expansion resin 14 is removed, the new water-absorbing expansion resin 14 is replaced, and finally the telescopic rod 8 is controlled to extend, so that the resonance elimination device body 1 is electrified again, and effective resonance elimination work is carried out.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (10)
1. The utility model provides a modular ferroresonance's quick elimination device, is including harmonic elimination device body (1) that is provided with harmonic elimination system, a serial communication port, harmonic elimination device body (1) goes up and down to be installed in one side of the cabinet body (2), one side of the cabinet body (2) articulates there is cabinet door (3), the junction of cabinet door (3) and the cabinet body (2) is provided with gasbag (24), gasbag (24) intercommunication has seal assembly, one side that cabinet door (3) were kept away from in the cabinet body (2) is offered and is used for radiating rectangular hole groove, mosquito repellent fluorescent tube (17) are transversely installed in the center department in this hole groove, water-absorbing expansion resin (14) are installed to the equal centre gripping in top and the bottom of mosquito repellent fluorescent tube (17), water-absorbing expansion resin (14) transmission is connected with tightly decides the subassembly.
2. The combined type ferroresonance quick elimination device according to claim 1, wherein a telescopic rod (8) is fixedly connected to one side of the bottom of the cabinet body (2) far away from the cabinet door (3), a partition plate (5) is fixedly connected to the telescopic end of the top of the telescopic rod (8), a plurality of uniform heat dissipation holes (10) are formed in the partition plate (5), the partition plate (5) is slidably mounted on one side of the cabinet body (2), the resonance elimination device body (1) is fixedly connected to one side of the partition plate (5) close to the cabinet door (3), a wiring board (11) is fixedly connected to the inner wall of the top wall plate of the cabinet body (2), and a plug wire hole (12) is formed in the wiring board (11).
3. The combined type ferromagnetic resonance quick elimination device according to claim 2, characterized in that side plates (29) are fixedly mounted on both sides of the inside of a wall plate on the side of the cabinet body (2) far away from the cabinet door (3), a partition plate (5) is slidably connected in a track between the inner wall of the cabinet body (2) and the side plates (29), connecting rods (7) are fixedly connected to both sides of the top of the partition plate (5), the partition plate (5) is communicated with a sealing assembly through the connecting rods (7), a wiring contact (4) is fixedly connected to the top of the resonance elimination device body (1), the wiring contact (4) is movably inserted into a wire insertion hole (12), the resonance elimination device body (1) is electrically connected with a wiring board (11) through the wiring contact (4), and a grounding wire (9) is electrically connected to the bottom of the resonance elimination device body (1).
4. The combined type ferroresonance quick elimination device according to claim 3, wherein the sealing assembly comprises a piston plate (26) fixedly connected to the top of the connecting rod (7), the piston plate (26) is slidably sleeved inside the piston cylinder (6), both sides of the top of one side wall plate away from the cabinet door (3) inside the cabinet body (2) are fixedly connected with the piston cylinder (6), one end of the piston cylinder (6) away from the partition plate (5) is communicated with a transverse pipe (27), the transverse pipe (27) is arranged in the top wall plate of the cabinet body (2), the middle section of the transverse pipe (27) is communicated with a communicating pipe (28), and one end of the communicating pipe (28) away from the transverse pipe (27) is communicated with the air bag (24).
5. The combined type ferromagnetic resonance quick elimination device according to claim 2, characterized in that the mounting plates (16) are fixedly connected to two side wall plates at the center of the rectangular hole groove, the mosquito repelling lamp tubes (17) are mounted on opposite sides of the two mounting plates (16), the transverse plates (15) are slidably mounted above and below the mosquito repelling lamp tubes (17), a plurality of mounting rings (23) are fixedly connected to one sides of the transverse plates (15) far away from the mosquito repelling lamp tubes (17), water-swelling resin (14) is sleeved in the mounting rings (23), grooves (33) with diameters larger than that of the mosquito repelling lamp tubes (17) are formed in opposite sides of the two transverse plates (15), and the transverse plates (15) are prepared from light-transmitting resin.
6. The combined ferromagnetic resonance quick elimination device according to claim 5, wherein the tightening assembly comprises a friction pad (13) movably abutted to the partition plate (5), one end of the friction pad (13) far away from the partition plate (5) is fixedly connected with a plurality of inclined columns (21), the top of the rectangular hole groove is provided with a plurality of guide grooves (30), the top of the water-absorbing expansion resin (14) above the mosquito-repellent lamp tube (17) is spliced with the guide grooves (30), the inclined columns (21) are also spliced with the guide grooves (30) and the inclined columns (21) are perpendicular to the guide grooves (30), and one end of the inclined columns (21) far away from the friction pad (13) is movably abutted to one end of the water-absorbing expansion resin (14) far away from the mounting ring (23).
7. The combined type ferroresonance quick elimination device according to claim 5, wherein a scraper (18) with a right-angled triangle-shaped section is slidably mounted on a bottom wall plate of the rectangular hole groove, one side wall plate of the scraper (18) is movably abutted to the partition plate (5), one end, away from the mounting ring (23), of the water-absorbing expansion resin (14) below the mosquito-repellent lamp tube (17) is abutted to an inclined surface of the scraper (18), and one side, away from the partition plate (5), of the scraper (18) is fixedly connected with a baffle (19) for preventing the water-absorbing expansion resin (14) from derailing.
8. The combined type ferromagnetic resonance quick elimination device according to claim 5, wherein sliding grooves (25) are respectively formed in two sides of the center of the rectangular hole groove, sliding blocks (22) are fixedly connected to two ends of the transverse plate (15) positioned on two sides of the mosquito repelling lamp tube (17), fixing rods (31) are fixedly connected in the sliding grooves (25), the sliding blocks (22) are slidably sleeved on the fixing rods (31), springs (20) are sleeved on the fixing rods (31), and two ends of each spring (20) are respectively and fixedly connected to one side wall plate, opposite to each other, of the two sliding blocks (22).
9. A harmonic elimination system according to claim 1, comprising an on-off module, wherein the on-off module is electrically connected to the silicon carbide harmonic elimination module and the thermal sensitive harmonic elimination module through a control module;
the silicon carbide harmonic elimination module and the thermosensitive harmonic elimination module are connected in parallel through the on-off module;
the silicon carbide resonance elimination module and the heat-sensitive resonance elimination module are both electrically connected with the wiring board (11) and the grounding wire (9);
the control module is in communication connection with the on-off module;
when the system generates ferromagnetic resonance overvoltage, the silicon carbide resonance elimination module is used for a 10KV system, and the ferromagnetic resonance overvoltage of the system is eliminated when the neutral point voltage is lower than 3 KV; the device is also used for eliminating a 35KV system, and the neutral point voltage is lower than 5KV to eliminate the ferromagnetic resonance overvoltage of the system;
when the system generates ferromagnetic resonance overvoltage, the thermosensitive detuning module is used for a 10KV system, and the neutral point voltage is higher than 3KV to eliminate the ferromagnetic resonance overvoltage of the system; the method is also used for eliminating a 35KV system, and the neutral point voltage is higher than 5KV to eliminate the ferromagnetic resonance overvoltage of the system.
10. A detuning system according to claim 9, wherein the switching means comprises two switches GN1 and GN2, and the switching states of the two switches GN1 and GN2 are switched on or off by the control means.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210069629.6A CN114552532B (en) | 2022-01-21 | 2022-01-21 | Combined type ferromagnetic resonance rapid elimination device and system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210069629.6A CN114552532B (en) | 2022-01-21 | 2022-01-21 | Combined type ferromagnetic resonance rapid elimination device and system |
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| CN114552532A true CN114552532A (en) | 2022-05-27 |
| CN114552532B CN114552532B (en) | 2023-11-03 |
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| CN114552532B (en) | 2023-11-03 |
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