CN114552532B - Combined type ferromagnetic resonance rapid elimination device and system - Google Patents
Combined type ferromagnetic resonance rapid elimination device and system Download PDFInfo
- Publication number
- CN114552532B CN114552532B CN202210069629.6A CN202210069629A CN114552532B CN 114552532 B CN114552532 B CN 114552532B CN 202210069629 A CN202210069629 A CN 202210069629A CN 114552532 B CN114552532 B CN 114552532B
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- resonance
- fixedly connected
- module
- elimination
- cabinet body
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- 230000008030 elimination Effects 0.000 title claims abstract description 105
- 238000003379 elimination reaction Methods 0.000 title claims abstract description 105
- 230000005350 ferromagnetic resonance Effects 0.000 title claims abstract description 50
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229910010271 silicon carbide Inorganic materials 0.000 claims abstract description 17
- 238000005192 partition Methods 0.000 claims description 44
- 239000011347 resin Substances 0.000 claims description 43
- 229920005989 resin Polymers 0.000 claims description 43
- 239000000077 insect repellent Substances 0.000 claims description 42
- 239000002250 absorbent Substances 0.000 claims description 22
- 230000007935 neutral effect Effects 0.000 claims description 21
- 230000017525 heat dissipation Effects 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 11
- 230000000694 effects Effects 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 12
- 238000005457 optimization Methods 0.000 description 8
- 230000000903 blocking effect Effects 0.000 description 5
- 239000000428 dust Substances 0.000 description 5
- 241000255925 Diptera Species 0.000 description 4
- 238000007790 scraping Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000001846 repelling effect Effects 0.000 description 2
- 230000008961 swelling Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000010336 energy treatment Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
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
Abstract
The invention relates to the field of ferromagnetic resonance elimination, and particularly discloses a combined type quick ferromagnetic resonance elimination device and system. Through the arrangement of the resonance elimination system, the silicon carbide resonance elimination module and the thermosensitive resonance elimination module effectively eliminate different ferromagnetic resonances generated in the system, improve the elimination efficiency of the ferromagnetic resonances, and avoid the situation that a large number of components are connected into a circuit system, so that the operation burden of the circuit system is increased.
Description
Technical Field
The invention relates to a resonance elimination device, in particular to a combined type quick ferromagnetic resonance elimination device and system, and belongs to the field of ferromagnetic resonance elimination.
Background
In both neutral point direct grounding systems and indirect grounding systems, ferromagnetic resonance phenomena can be caused, so that the fuse wire of the transformer is blown, burned or exploded, and the safe operation of the system is seriously affected.
In the prior art, the two modes of harmonic elimination of silicon carbide and thermistor are often used, the two modes are different in the harmonic elimination field, and in a system which is good in the superposition field of the two modes, various components are often required to be installed for combined harmonic elimination, the operation burden of the system is increased, the trouble is quite high, the installation of a harmonic elimination device is often required to be in a dry environment, and because the harmonic elimination device is often installed in a power distribution cabinet, in daily use, the harmonic elimination device is required to dissipate heat on one hand, and on the other hand, moisture-proof work is required to be carried out, so that the quick harmonic elimination device and the system for combined ferromagnetic resonance are provided.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a combined type quick eliminating device and system for ferroresonance.
The aim of the invention can be achieved by the following technical scheme:
the utility model provides a quick remove device of combination formula ferromagnetic resonance and system, includes the harmonic elimination device body that is provided with the harmonic elimination system, the harmonic elimination device body lift is 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 rectangular hole groove that is used for radiating is offered to one side that the cabinet body kept away from the cabinet door, and the mosquito repellent fluorescent tube is transversely installed to the center department in this hole groove, and the water-absorbing expansion resin is all installed to the top and the bottom centre gripping of mosquito repellent fluorescent tube, and the transmission of water-absorbing expansion resin is connected with tightly decides the subassembly.
Preferably, the bottom of the cabinet body is far away from one side fixedly connected with telescopic link of cabinet door, and telescopic link top's telescopic link fixedly connected with baffle has seted up a plurality of even louvres on the baffle, baffle slidable mounting in one side of the cabinet body, and resonance elimination device body fixedly connected with is close to one side of cabinet door at the baffle, 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 inside both sides of wallboard of cabinet door one side and is all fixed mounting has the curb plate, and baffle sliding connection is in the track between the inner wall of the cabinet body and curb plate, and the top both sides army fixedly connected with connecting rod of baffle, baffle pass through connecting rod and seal assembly intercommunication, and the top fixedly connected with wiring contact of harmonic elimination device body, wiring contact and plug wire hole activity are pegged graft, and the bottom electric connection of harmonic elimination device body passes through wiring contact and wiring board electric connection, harmonic elimination device body has the earth connection.
Preferably, the sealing component comprises a piston plate fixedly connected to the top of the connecting rod, the piston plate is sleeved in the piston cylinder in a sliding manner, the piston cylinder is fixedly connected to two sides of the top of a side wall plate of the cabinet door, which is far away from the inside of the cabinet door, one end of the piston cylinder, which is far away from the partition plate, is communicated with a transverse pipe, the transverse pipe is arranged in the top wall plate of the cabinet body, the middle section of the transverse pipe is communicated with a communicating pipe, and one end, which is far away from the transverse pipe, of the communicating pipe is communicated with the air bag.
Preferably, the mounting plates are fixedly connected to the wall plates on two sides of the center of the rectangular hole groove, the mosquito-repellent lamp tubes are mounted on opposite sides of the two mounting plates, the transverse plates are slidably mounted above and below the mosquito-repellent lamp tubes, a plurality of mounting rings are fixedly connected to one sides of the transverse plates, far away from the mosquito-repellent lamp tubes, the water-absorbing expansion resin is sleeved in the mounting rings, grooves with diameters larger than those of the mosquito-repellent lamp tubes are formed in opposite sides of the two transverse plates, and the transverse plates are made of light-transmitting resin.
Preferably, the tightening assembly comprises a friction pad movably abutted with the partition plate, one end of the friction pad away from the partition plate is fixedly connected with a plurality of inclined columns, the top of the rectangular hole groove is provided with a plurality of guide grooves, the top of the water-absorbent expansion resin above the mosquito-repellent lamp tube is spliced with the guide grooves, the inclined columns are spliced with the guide grooves and are perpendicular to the guide grooves, and one end of the inclined column away from the friction pad is movably abutted with one end of the water-absorbent expansion resin away from the mounting ring.
Preferably, a scraper with a right triangle cross section is slidably mounted on the bottom wall plate of the rectangular hole groove, one side wall plate of the scraper is movably abutted with the partition plate, one end, away from the mounting ring, of the water-absorbent expansion resin below the mosquito-repellent lamp tube is abutted with the inclined surface of the scraper, and one side, away from the partition plate, of the scraper is fixedly connected with a baffle for preventing the water-absorbent expansion resin from derailing.
Preferably, the both sides of the center of the rectangular hole slot are provided with sliding grooves, the two ends of the transverse plates positioned on the both sides of the mosquito-repellent lamp tube are fixedly connected with sliding blocks, the sliding blocks are fixedly connected with fixing rods in the sliding grooves, the sliding blocks are sleeved on the fixing rods in a sliding manner, the fixing rods are sleeved with springs, and the two ends of each spring are respectively and fixedly connected with a side wall plate opposite to the two sliding blocks.
The resonance elimination system comprises an on-off module, wherein the on-off module is electrically connected with a silicon carbide resonance elimination module and a thermosensitive resonance elimination module through a control module;
the silicon carbide resonance elimination module and the thermosensitive resonance elimination module are connected in parallel through the on-off module;
the silicon carbide resonance elimination module and the thermosensitive resonance elimination module are electrically connected with the wiring board and the grounding wire;
the control module is in communication connection with the on-off module;
when ferromagnetic resonance overvoltage occurs in the system, the silicon carbide resonance elimination module is used for eliminating the ferromagnetic resonance overvoltage of the system when the neutral point voltage is lower than 3KV; the method is also used for eliminating a 35KV system, and the neutral point voltage is lower than the ferromagnetic resonance overvoltage of the elimination system of 5 KV;
when ferromagnetic resonance overvoltage occurs in the system, the thermosensitive resonance elimination module is used for eliminating the ferromagnetic resonance overvoltage of the system when the neutral point voltage is higher than 3KV; the method is also used for eliminating the ferromagnetic resonance overvoltage of a 35KV system, and the neutral point voltage is higher than 5 KV.
Preferably, the on-off module comprises two switches GN1 and GN2, and the on-off state of the two switches GN1 and GN2 is switched on or off by the control module.
The invention has the beneficial effects that:
1. through the arrangement of the resonance elimination system, the silicon carbide resonance elimination module and the thermosensitive resonance elimination module effectively eliminate different ferromagnetic resonances generated in the system, improve the elimination efficiency of the ferromagnetic resonances, and avoid the situation that a large number of components are connected into a circuit system, so that the operation burden of the circuit system is increased.
2. Through the setting of gasbag and rectangular hole groove, the inflation of gasbag then makes the gap of junction be lived by effectual shutoff between cabinet door and the cabinet body, can effectually prevent that external moist gas from entering into the inside of the cabinet body, simultaneously to some special conditions, for example the condition that there is ponding on ground, also can play certain guard action. The rectangular hole grooves are formed, heat dissipation holes formed in the partition plates can effectively dissipate heat of the resonance eliminating device body, and the rectangular hole grooves are formed at a certain height from the ground, so that the function of preventing water accumulation can be achieved to a certain extent.
3. Through the setting of the water swelling resin that absorbs water, the water swelling resin that absorbs water can effectually prevent that vapor from entering into the cabinet body through rectangular hole groove, plays effectual waterproof effect to the cabinet body. On the one hand, the water-absorbing expansion resin enables the pressure between the friction pad and the partition plate to be effectively increased through the inclined column, so that the stability of the partition plate is promoted, and on the other hand, dust on one side of the resonance elimination device body is effectively scraped through the scraping plate, so that the dust is prevented from blocking the heat dissipation holes, and the heat dissipation of the resonance elimination device body is effectively guaranteed.
4. The setting of mosquito repellent fluorescent tube can prevent on the one hand that external mosquito from entering into the cabinet body, and on the other hand also can make the cabinet body play striking effect through the yellow light that the mosquito repellent fluorescent tube sent, and 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 prevents that the heat that the mosquito repellent fluorescent tube produced from entering into the cabinet body, plays the barrier effect to the heat dissipation of tuning device body, also promotes the volatilization of the peripheral vapor of mosquito repellent fluorescent tube, prevents that vapor from entering into in the cabinet body through the peripheral mosquito repellent fluorescent tube of two opposite sides of diaphragm.
5. Through the setting of telescopic link, before eliminating electric energy and handling to resonance elimination device body, there is the blocking of cabinet body, cabinet door and baffle all the time between technician and the resonance elimination device body, has improved technician's security greatly.
Drawings
The present invention is further described below with reference to the accompanying drawings for the convenience of understanding by those skilled in the art.
FIG. 1 is a schematic diagram of the overall structure of the present invention.
Fig. 2 is a schematic view of the overall structure of the present invention in another view.
FIG. 3 is a schematic view of the mounting structure of the water-swellable resin of the present invention.
FIG. 4 is a schematic sectional view of the water-swellable resin of the present invention.
FIG. 5 is a schematic view showing a cross-sectional structure of the water-swellable resin of the present invention at another view angle.
Fig. 6 is an enlarged schematic view of the structure of the portion a shown in fig. 5 according to the present invention.
Fig. 7 is a schematic cross-sectional view of the piston cylinder of the present invention.
Fig. 8 is a schematic view showing a connection structure of the communication tube and the air bag of the present invention.
Fig. 9 is a schematic circuit connection diagram of the harmonic elimination 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 wire; 10. a heat radiation hole; 11. a wiring board; 12. a plug wire hole; 13. a friction pad; 14. a water-swellable resin; 15. a cross plate; 16. a mounting plate; 17. a mosquito-repellent lamp tube; 18. a scraper; 19. a baffle; 20. a spring; 21. a diagonal column; 22. a slide block; 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. a groove.
Detailed Description
The technical solutions of the present invention will be clearly and completely described in connection with the embodiments, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-10, a combined type quick eliminating device and system for ferromagnetic resonance comprises a resonance eliminating device body 1 provided with a resonance eliminating system, wherein the resonance eliminating device body 1 is installed on 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 a joint of the cabinet door 3 and the cabinet body 2, the air bag 24 is communicated with a sealing component, a rectangular hole groove for heat dissipation is formed in one side, far 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 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 component.
As a technical optimization scheme of the invention, one side of the bottom of the cabinet body 2 far away from the cabinet door 3 is fixedly connected with a telescopic rod 8, a baffle 5 is fixedly connected with a telescopic end at the top of the telescopic rod 8, a plurality of uniform heat dissipation holes 10 are formed in the baffle 5, the baffle 5 is slidably arranged on one side of the cabinet body 2, the resonance elimination device body 1 is fixedly connected with one side of the baffle 5 close to the cabinet door 3, a wiring board 11 is fixedly connected to the inner wall of a top wall plate of the cabinet body 2, and a wiring hole 12 is formed in the wiring board 11.
As a technical optimization scheme of the invention, side plates 29 are fixedly arranged on two sides of the inside of a wall plate, which is far away from one side of a cabinet door 3, of a cabinet body 2, a baffle 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 two sides of the top of the baffle plate 5, the baffle plate 5 is communicated with a sealing assembly through the connecting rods 7, a wiring contact 4 is fixedly connected on the top of a resonance elimination device body 1, the wiring contact 4 is movably spliced with a wire insertion hole 12, the resonance elimination device body 1 is electrically connected with a wiring plate 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 a connecting rod 7, the piston plate 26 is sleeved in the piston cylinder 6 in a sliding manner, the piston cylinder 6 is fixedly connected to both sides of the top of a side wall plate of the cabinet body 2 far away from the cabinet door 3, one end of the piston cylinder 6 far 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 far away from the transverse pipe 27 is communicated with the air bag 24.
As a technical optimization scheme of the invention, mounting plates 16 are fixedly connected to two side wall plates at the center of a rectangular hole groove, mosquito-repellent 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-repellent 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-repellent lamp tubes 17, water-absorbing expansion resins 14 are sleeved in the mounting rings 23, grooves 33 with diameters larger than those of the mosquito-repellent lamp tubes 17 are formed in opposite sides of the two transverse plates 15, and the transverse plates 15 are made of light-transmitting resins.
As a technical optimization scheme of the invention, the fastening assembly comprises a friction pad 13 movably abutted with 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 a rectangular hole groove is provided with a plurality of guide grooves 30, the top of the water-absorbent expansion resin 14 above the mosquito-repellent lamp tube 17 is spliced with the guide grooves 30, the inclined columns 21 are vertical to the guide grooves 30, and one end of the inclined columns 21 far away from the friction pad 13 is movably abutted with one end of the water-absorbent expansion resin 14 far away from the mounting ring 23.
As a technical optimization scheme of the invention, a scraper 18 with a right triangle cross section is slidably arranged on the bottom wall plate of the rectangular hole groove, one side wall plate of the scraper 18 is movably abutted with the partition plate 5, one end of the water-absorbent expansion resin 14 below the mosquito-repellent lamp tube 17, which is far away from the mounting ring 23, is abutted with the inclined surface of the scraper 18, and one side of the scraper 18, which is far away from the partition plate 5, is fixedly connected with a baffle 19 for preventing the water-absorbent expansion resin 14 from derailing.
As a technical optimization scheme of the invention, both sides of the center of the rectangular hole groove are provided with the sliding grooves 25, both ends of the transverse plate 15 positioned at both sides of the mosquito-repellent lamp tube 17 are fixedly connected with the sliding blocks 22, the inside of the sliding grooves 25 is fixedly connected with the fixing rods 31, the sliding blocks 22 are in sliding sleeve joint with the fixing rods 31, the fixing rods 31 are in sleeve joint with the springs 20, and both ends of the springs 20 are respectively and fixedly connected with opposite side wall plates of the two sliding blocks 22.
The resonance elimination system comprises an on-off module, wherein the on-off module is electrically connected with a silicon carbide resonance elimination module and a thermosensitive resonance elimination module through a control module;
the silicon carbide resonance elimination module and the thermosensitive resonance elimination module are connected in parallel through the on-off module;
the silicon carbide resonance elimination module and the thermosensitive 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 ferromagnetic resonance overvoltage occurs in the system, the silicon carbide resonance elimination module is used for eliminating the ferromagnetic resonance overvoltage of the system when the neutral point voltage is lower than 3KV; the method is also used for eliminating a 35KV system, and the neutral point voltage is lower than the ferromagnetic resonance overvoltage of the elimination system of 5 KV;
when ferromagnetic resonance overvoltage occurs in the system, the thermosensitive resonance elimination module is used for eliminating the ferromagnetic resonance overvoltage of the system when the neutral point voltage is higher than 3KV; the method is also used for eliminating the ferromagnetic resonance overvoltage of a 35KV system, and the neutral point voltage is higher than 5 KV.
The control module is used for controlling on-off of two switches GN1 and GN2 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 GN1 and GN2, and the on-off state of the two switches GN1 and GN2 is switched on or 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, a 10KV system is detected by the detector, and the neutral point voltage is lower than the ferromagnetic resonance overvoltage of 3KV; when the neutral point voltage of the 350KV system is lower than the ferromagnetic resonance overvoltage of 5KV, the detector feeds back a signal to the background control system, an execution command is transmitted to the controller after the background control system receives the signal, the GN2 is in an open state after the controller receives the execution command, the GN1 is closed and does not act, and then the silicon carbide resonance elimination module forms a passage in the resonance elimination device body 1. Detecting a 10KV system by a detector, wherein the neutral point voltage is higher than the ferromagnetic resonance overvoltage of 3KV; when the neutral point voltage is higher than the ferromagnetic resonance overvoltage of 5KV, the detector feeds back a signal to the background control system, after the background control system receives the signal, an execution command is sent to the controller, after the controller receives the execution command, the GN2 is in a closed state, the GN1 is disconnected, and then the thermosensitive resonance elimination module forms a passage in the resonance elimination device body 1.
When the resonance elimination system performs resonance elimination work:
logic 1:
when ferromagnetic resonance occurs in the 10KV system, the neutral point voltage is lower than 3KV;
when ferromagnetic resonance occurs in the 350KV system, the neutral point voltage is lower than 5 KV; the controller closes the switch GN1, and the silicon carbide resonance eliminating device is used for eliminating ferromagnetic resonance overvoltage, and the system is recovered after elimination.
Logic 2:
when ferromagnetic resonance occurs in a 10KV system, the neutral point voltage is higher than 3KV;
when ferromagnetic resonance occurs in the 350KV system, the neutral point voltage is higher than 5 KV; the controller closes the switch GN2, and the thermosensitive resonance eliminating device is used for eliminating ferromagnetic resonance overvoltage, and the system is recovered after elimination.
When the resonance eliminating device is used, after the cabinet door 3 is closed, the telescopic rod 8 is controlled to extend, in the extending process of the telescopic rod 8, the telescopic rod 8 can push the partition plate 5 to drive the resonance eliminating device body 1 to ascend, on one hand, the ground wire 9 on 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 wiring hole 12 so as to enable the resonance eliminating device body 1 and the voltage transformer to form a passage, and further the resonance eliminating 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 pushes the connecting rod 7 to enable the piston plate 26 to rise, the piston plate 26 rises to further squeeze gas in the piston cylinder 6, the gas in the piston cylinder 6 enters the transverse tube 27, the gas enters the air bag 24 through the communicating tube 28 after entering the transverse tube 27, and the cabinet door 3 is closed at the moment, so that the air bag 24 is inflated after entering the air bag 24. The inflation of gasbag 24 then makes the gap of junction between cabinet door 3 and the cabinet body 2 by effectual shutoff, can effectually prevent that external moist gas from entering into the inside of cabinet body 2, simultaneously to some special conditions, for example the circumstances that the ground exists ponding, also can play certain guard action, resonance elimination device body 1 can rise under the promotion of telescopic link 8, has certain distance apart from the ground, so when there is a small amount of ponding on the ground, the device still can operate, and gasbag 24 also can prevent that ponding from entering into in the cabinet body 2 simultaneously.
When telescopic link 8 promotes resonance elimination device body 1 motion to wiring contact 4 grafting and enters into plug wire hole 12, baffle 5 can move to the side in rectangular hole groove, and then makes rectangular hole groove carry out effectual heat dissipation to resonance elimination device body 1 through the louvre 10 of seting up on baffle 5, and rectangular hole groove's seting up position also has certain height apart from ground, so also can play certain effect that prevents ponding. After the partition plate 5 moves to the side of the rectangular hole groove, the top side wall plate of the partition plate 5 can be effectively abutted with the friction pad 13, a certain friction force can be generated after the friction pad 13 is abutted with the partition plate 5, the pressure of the partition plate 5 born by the telescopic rod 8 and the resonance elimination device body 1 and the reaction force applied to the partition plate 5 by gas in the piston cylinder 6 can be relieved, and the installation stability of the partition plate 5 and the resonance elimination device body 1 is greatly improved.
After the resonance elimination device body 1 is installed, the mosquito-repellent lamp tube 17 is electrified and kept in a normally-bright state, on one hand, external mosquitoes can be prevented from entering the cabinet body 2, on the other hand, yellow lamplight emitted by the mosquito-repellent lamp tube 17 can also enable the cabinet body 2 to play a striking role, and secondly, heat generated by the electrified mosquito-repellent lamp tube 17 can also be collected in an effective concentrated mode through the grooves 33 formed in the transverse plates 15, so that the heat generated by the mosquito-repellent lamp tube 17 is prevented from entering the cabinet body 2, the heat dissipation of the resonance elimination device body 1 is prevented, the volatilization of water vapor around the mosquito-repellent lamp tube 17 is promoted, and the water vapor is prevented from entering the cabinet body 2 through the periphery of the mosquito-repellent lamp tube 17 on the opposite side of the two transverse plates 15.
The water-absorbent expansion resin 14 absorbs water vapor in the air in the rectangular hole grooves, so that the water vapor in the air is prevented from entering the cabinet body 2, drying in the cabinet body 2 is effectively guaranteed, and the water-absorbent expansion resin 14 expands after absorbing water and also presses the two transverse plates 15, the scraping plates 18 and the inclined posts 21. When the water-absorbing expansion resin 14 extrudes the transverse plate 15 and the inclined column 21 which are positioned above, on one hand, the transverse plate 15 can extrude the spring 20, and then the transverse plate 15 is closer to the mosquito-repellent lamp tube 17, so that the transverse plate 15 can effectively disperse light emitted by the mosquito-repellent lamp tube 17 and can more fully shield and shield heat emitted by the mosquito-repellent lamp tube 17; on the other hand, the water-absorbent expansion resin 14 also presses the inclined column 21, and the water-absorbent expansion resin 14 presses 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 further promoted.
When the water-absorbing expansion resin 14 extrudes the diaphragm 15 and the scraper 18 which are positioned above, the diaphragm 15 can extrude the spring 20 on one hand, and then the diaphragm 15 is closer to the mosquito-repellent lamp tube 17, and on the other hand, the scraper 18 can also be extruded, and then the scraper 18 is attached to the partition plate 5 more, so that when the resonance elimination device body 1 is overhauled, dust on one side of the partition plate 5 away from the resonance elimination device body 1 can be effectively scraped, the dust is prevented from blocking the heat dissipation holes 10, and then the heat dissipation of the resonance elimination device body 1 is effectively guaranteed.
When overhauling the resonance elimination device body 1, technical personnel press down the water-absorbent expansion resin 14 located above to disconnect the connection between the water-absorbent expansion resin 14 and the guide groove 30, in the process, the spring 20 can further shrink to enable the water-absorbent expansion resin 14 not to squeeze the inclined column 21 any more, then the telescopic rod 8 is controlled to shrink, and as the inclined column 21 is not squeezed any more, the pressure between the friction pad 13 and the partition plate 5 is reduced, and further the friction pad 13 can not block the descending of the partition plate 5, and the water-absorbent expansion resin 14 located below can continuously squeeze the scraping plate 18, so that when the partition plate 5 descends, the scraping plate 18 can effectively scrape dust and accessory on the surface of the partition plate 5, and therefore heat dissipation of the resonance elimination device body 1 by the partition plate 5 is guaranteed.
When the telescopic rod 8 is contracted to the shortest state, the wiring contact 4 is separated from the wire inserting hole 12, gas in the air bag 24 is pumped into the piston cylinder 6, so that the air bag 24 is not used for blocking the joint between the cabinet door 3 and the cabinet body 2, meanwhile, the resonance elimination device body 1 is powered off, the grounding wire 9 is wound on the bottom wall plate of the cabinet body 2 in the process, on the one hand, the residual electric quantity inside the resonance elimination device body 1 is grounded, electric energy is not contained in the resonance elimination device body 1, and the safety of overhaulers in overhauling the resonance elimination device body 1 is greatly improved. In the whole process, before the resonance elimination device body 1 carries out the electric energy treatment, the blocking of the cabinet body 2, the cabinet door 3 and the partition board 5 is always present in the technician and the resonance elimination device body 1, so that the safety of the technician is greatly improved. After the maintenance is finished, the cabinet door 3 is closed firstly, then the rest of the water-absorbent expansion resin 14 is removed, the new water-absorbent 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 only to assist in the explanation of the invention. The preferred embodiments are not exhaustive or to limit the invention to the precise form 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 understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.
Claims (8)
1. The utility model provides a quick eliminating device of combination formula ferroresonance, includes harmonic elimination device body (1) that is provided with harmonic elimination system, its characterized in that, harmonic elimination device body (1) is installed in one side of cabinet body (2) in the lift, one side of cabinet body (2) articulates there is cabinet door (3), the junction of cabinet door (3) and cabinet body (2) is provided with gasbag (24), gasbag (24) intercommunication has seal assembly, rectangular hole groove that is used for radiating is offered to one side of cabinet body (2) keeping away from cabinet door (3), mosquito repellent fluorescent tube (17) are transversely installed to the center department in this hole groove, water-absorbing expansion resin (14) are all installed to the centre gripping of top and bottom of mosquito repellent fluorescent tube (17), water-absorbing expansion resin (14) transmission is connected with tight subassembly;
the sealing assembly comprises a piston plate (26) fixedly connected to the top of the connecting rod (7), the piston plate (26) is sleeved in the piston cylinder (6) in a sliding manner, the piston cylinder (6) is fixedly connected to both sides of the top of a side wall plate, far away from the cabinet door (3), of 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 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, far away from the transverse pipe (27), of the communicating pipe (28) is communicated with the air bag (24);
the tight subassembly includes friction pad (13) with baffle (5) activity butt, one end fixedly connected with batter post (21) of baffle (5) are kept away from to friction pad (13), a plurality of guide slots (30) have been seted up at the top in rectangular hole groove, the top and the guide slot (30) of the water-absorbent expansion resin (14) that are located mosquito repellent fluorescent tube (17) top are pegged graft, batter post (21) also peg graft with guide slot (30) and batter post (21) are perpendicular with guide slot (30), one end that the batter post (21) kept away from friction pad (13) and one end activity butt that the collar (23) were kept away from to water-absorbent expansion resin (14).
2. The combined type quick ferromagnetic resonance eliminating device according to claim 1, wherein one side of the bottom of the cabinet body (2) away from the cabinet door (3) is fixedly connected with a telescopic rod (8), a telescopic end of the top of the telescopic rod (8) is fixedly connected with a partition plate (5), 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 eliminating 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 a top wall plate of the cabinet body (2), and a wiring hole (12) is formed in the wiring board (11).
3. The combined type quick eliminating device for the ferromagnetic resonance according to claim 2, wherein the side plates (29) are fixedly installed on two sides of the inside of a wall plate, far away from one side of the cabinet door (3), of the cabinet body (2), the 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 the two sides of the top of the partition plate (5), the partition plate (5) is communicated with the sealing assembly through the connecting rods (7), wiring contacts (4) are fixedly connected to the top of the resonance elimination device body (1), the wiring contacts (4) are movably inserted into plug wire holes (12), the resonance elimination device body (1) is electrically connected with a wiring wire (9) through the wiring contacts (4) and the wiring plate (11), and the bottom of the resonance elimination device body (1) is electrically connected with a grounding wire (9).
4. A combined type quick eliminating device for ferromagnetic resonance according to claim 3, wherein, the two side wall plates at the center of the rectangular hole groove are fixedly connected with mounting plates (16), the mosquito-repellent lamp tube (17) is mounted at the opposite sides of the two mounting plates (16), the transverse plates (15) are slidably mounted above and below the mosquito-repellent lamp tube (17), one side of the transverse plates (15) far away from the mosquito-repellent lamp tube (17) is fixedly connected with a plurality of mounting rings (23), the mounting rings (23) are sleeved with water-absorbing expansion resin (14), the opposite sides of the two transverse plates (15) are provided with grooves (33) with diameters larger than those of the mosquito-repellent lamp tube (17), and the transverse plates (15) are prepared by light-transmitting resin.
5. The combined type quick eliminating device for the ferromagnetic resonance according to claim 4, wherein a scraper (18) with a right triangle cross section is slidably installed on a bottom wall plate of the rectangular hole groove, a side wall plate of the scraper (18) is movably abutted against the partition plate (5), one end, away from the mounting ring (23), of the water-absorbent expansion resin (14) below the mosquito-repellent lamp tube (17) is abutted against an inclined surface of the scraper (18), and a baffle (19) for preventing the water-absorbent expansion resin (14) from derailing is fixedly connected to one side, away from the partition plate (5), of the scraper (18).
6. The combined type quick eliminating device for the ferromagnetic resonance according to claim 5, wherein sliding grooves (25) are formed in two sides of the center of the rectangular hole groove, sliding blocks (22) are fixedly connected to two ends of a transverse plate (15) located on two sides of the mosquito-repellent lamp tube (17), a fixing rod (31) is fixedly connected to the sliding grooves (25), the sliding blocks (22) are sleeved on the fixing rod (31) in a sliding mode, springs (20) are sleeved on the fixing rod (31), and two ends of each spring (20) are fixedly connected to opposite side wall plates of the two sliding blocks (22).
7. The resonance elimination system of the combined type ferromagnetic resonance rapid elimination device according to claim 6, comprising an on-off module, wherein the on-off module is electrically connected with a silicon carbide resonance elimination module and a thermosensitive resonance elimination module through a control module;
the silicon carbide resonance elimination module and the thermosensitive resonance elimination module are connected in parallel through the on-off module;
the silicon carbide resonance elimination module and the thermosensitive 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 ferromagnetic resonance overvoltage occurs in the system, the silicon carbide resonance elimination module is used for eliminating the ferromagnetic resonance overvoltage of the system when the neutral point voltage is lower than 3KV; the method is also used for eliminating a 35KV system, and the neutral point voltage is lower than the ferromagnetic resonance overvoltage of the elimination system of 5 KV;
when ferromagnetic resonance overvoltage occurs in the system, the thermosensitive resonance elimination module is used for eliminating the ferromagnetic resonance overvoltage of the system when the neutral point voltage is higher than 3KV; the method is also used for eliminating the ferromagnetic resonance overvoltage of a 35KV system, and the neutral point voltage is higher than 5 KV.
8. The resonance elimination system according to claim 7, wherein the on-off module comprises two switches GN1 and GN2, and on-off states of the two switches GN1 and GN2 are switched on or off by the control module.
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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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| CN202210069629.6A CN114552532B (en) | 2022-01-21 | 2022-01-21 | Combined type ferromagnetic resonance rapid elimination device and system |
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| CN114552532B true CN114552532B (en) | 2023-11-03 |
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| CN114552532A (en) | 2022-05-27 |
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