CN112153857B - Full-voltage fault on-line monitoring equipment for power distribution network - Google Patents
Full-voltage fault on-line monitoring equipment for power distribution network Download PDFInfo
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- CN112153857B CN112153857B CN202010526611.5A CN202010526611A CN112153857B CN 112153857 B CN112153857 B CN 112153857B CN 202010526611 A CN202010526611 A CN 202010526611A CN 112153857 B CN112153857 B CN 112153857B
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
- H05K7/20172—Fan mounting or fan specifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0213—Venting apertures; Constructional details thereof
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0247—Electrical details of casings, e.g. terminals, passages for cables or wiring
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
- H05K7/20145—Means for directing air flow, e.g. ducts, deflectors, plenum or guides
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
- H05K7/20181—Filters; Louvers
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- 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
- Y04S10/52—Outage or fault management, e.g. fault detection or location
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Installation Of Bus-Bars (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The invention discloses an online monitoring device for full-voltage faults of a power distribution network. The air-cooling device comprises a voltage detector, wherein the hollow sleeve is embedded in the top end of the outer part of the voltage detector, the air inlet pipeline is embedded in the top end of the hollow sleeve, the air storage chassis is embedded in the bottom end of the hollow sleeve, the heat dissipation fan is embedded in the air inlet pipeline, the filter screen is clamped on one side of the heat dissipation fan, the side branch pipes are uniformly embedded between the edge of the outer wall of the air storage chassis and the inner part of the voltage detector.
Description
Technical Field
The invention relates to the technical field of power equipment monitoring equipment, in particular to full-voltage fault on-line monitoring equipment for a power distribution network.
Background
The neutral point is not grounded and the power system of the grounding or high-resistance grounding mode through the arc suppression coil, most of the domestic power grids of 66kV and below adopt the grounding mode, the full-voltage monitoring and wave recording device is an intelligent integrated controller developed by the company aiming at various faults in the power system, the device can be arranged on each level bus of a 3-35 kV substation, and various fault states of the power grids can be rapidly and accurately identified through sampling and analyzing secondary signals of the voltage transformer and the current transformer, and corresponding control, alarm and locking instructions are sent out. The method is used for identifying and controlling faults such as voltage out-of-limit, PT wire breakage, single-phase grounding, ferroresonance, lightning stroke or operation overvoltage, system harmonic and the like which are common to a power grid and are easy to cause tripping accidents, and simultaneously recording and analyzing fault waveforms, and monitoring phase voltage and line voltage of normal operation of the system in real time.
However, the existing full-voltage fault on-line monitoring equipment for the power distribution network has the problems that when the equipment is used, the heat accumulation position inside the voltage detector cannot be subjected to directional heat dissipation, the heat dissipation efficiency at the branch pipe at the side with higher temperature cannot be accelerated, and the heat dissipation efficiency inside the device is poor.
Disclosure of Invention
The invention aims to provide the online monitoring equipment for the full-voltage faults of the power distribution network, which solves the problems that the existing online monitoring equipment for the full-voltage faults of the power distribution network, which is proposed in the background technology, cannot directionally dissipate heat at the heat accumulation position inside a voltage detector, cannot accelerate the heat dissipation efficiency at the branch pipe at the side with higher temperature, and causes poor heat dissipation efficiency inside a device.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a full voltage fault on-line monitoring equipment of distribution network, includes the voltage detector, the outside top embedding of voltage detector is installed cooling module, cooling module includes admission line, cavity sleeve pipe, side branch pipe, radiator fan, filter screen and gas storage chassis, the outside top embedding of voltage detector is installed cavity sleeve pipe, cavity sleeve pipe top embedding is installed the admission line, cavity sleeve pipe bottom embedding is installed the gas storage chassis, the inside embedding of admission line is installed radiator fan, radiator fan one side joint is installed the filter screen, even embedding is installed between gas storage chassis outer wall edge and the inside side branch pipe of voltage detector, radiator fan's power input and the output electric connection of commercial power;
the partition assembly comprises an air inlet disc, a valve plate, a magnetic suction plate, a rubber air bag ball and a magnetic suction block, wherein the air inlet disc is embedded in the joint of the side branch pipe and the air storage chassis, the valve plate is embedded in the bottom end of the air inlet disc, and the rubber air bag ball is embedded in the top end of the air inlet disc;
the magnetic block is arranged at the bottom end of the rubber air bag ball, the magnetic plate is arranged at the top end of the valve plate, and the magnetic block bottom end and the magnetic plate top end are opposite in magnetism;
the height of the valve plate is smaller than the diameter of the side branch pipe, and ammonia gas is stored in the rubber air bag ball.
Further, coupling assembling is installed in embedding of voltage detector outer wall one side, coupling assembling includes fixed sleeve, cable joint, bayonet lock, take-up reel and draw-in groove, voltage detector outer wall one side is even to be embedded to be installed fixed sleeve, fixed sleeve is inside to be cup jointed to be installed the cable joint, fixed sleeve outer wall one side top embedding is installed the bayonet lock, voltage detector is inside to correspond fixed sleeve position department embedding is installed the take-up reel, take-up reel is inside to be corresponding the cable is evenly twined to cable joint bottom and is installed the cable.
Further, the clamping groove is formed in one side of the outer wall of the cable connector, the inner diameter of the clamping groove is equal to the outer diameter of the bottom end of the clamping pin, and the compression spring is sleeved at the joint of the bottom end of the clamping pin and the cable connector.
Furthermore, the maintenance side cap is all installed through fixation nut embedding to voltage detector outer wall both sides, just maintenance side cap outer wall bottom has evenly seted up the exhaust groove.
Further, the support base is installed to voltage detector bottom, support the base bottom and paste and cover the rubber gasket.
Further, the air inlet pipeline is arched in shape.
Further, the bottom end of the cable is fixedly connected with the inside of the take-up reel through a coil spring.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the heat dissipation assembly is arranged, the air flow in the external environment can be sent into the voltage detector in a dust-free way through the heat dissipation fan and the filter screen in the air inlet pipeline, and the air flow can be respectively sent into the heat accumulation place in the voltage detector under the actions of the hollow sleeve, the air storage chassis and the side branch pipe, so that the directional heat dissipation of the heat accumulation place in the voltage detector is achieved.
Through being provided with coupling assembling, can take out the cable joint with external equipment's cable through stirring the bayonet lock and connect fixedly to through pressing the cable joint, interlock between bayonet lock bottom and draw-in groove under compression spring's effect, can retract the cable joint, thereby solved the cable joint and exposed the problem of receiving the damage of knocking in the outside, improved the convenience of being connected between cable joint and the cable simultaneously, guaranteed the flexible smoothness of cable joint bottom cable by the take-up reel.
Through being provided with the subregion subassembly, when the inside ammonia of rubber gasbag ball is heated and expands, promote magnetism and inhale the piece and move down, it is fixed through being connected between rubber gasbag ball and the magnetism inhale the piece, can upwards rise the valve plate is whole, can increase the air input of corresponding position department side branch pipe to accelerated the radiating efficiency of temperature higher side branch pipe department, device simple structure uses reliably.
Drawings
FIG. 1 is a schematic diagram of a structure according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of the heat dissipating assembly of the embodiment of FIG. 1;
FIG. 3 is a schematic view of the connection assembly of the embodiment of FIG. 1;
FIG. 4 is a schematic view of the cable connector installation of the embodiment of FIG. 1;
FIG. 5 is a schematic view of the take-up reel mounting structure of the embodiment of FIG. 1;
FIG. 6 is a schematic diagram of a partition assembly in the embodiment of FIG. 1.
Reference numerals: 1. a voltage detector; 2. a heat dissipation assembly; 201. an air intake duct; 202. a hollow sleeve; 203. a side branch pipe; 204. a heat radiation fan; 205. a filter screen; 206. a gas storage chassis; 3. a connection assembly; 301. fixing the sleeve; 302. a cable joint; 303. a bayonet lock; 304. a take-up reel; 305. a clamping groove; 4. overhauling the side cover; 5. an exhaust groove; 6. a support base; 7. a partition component; 701. an air inlet disc; 702. a valve plate; 703. a magnetic suction plate; 704. rubber balloon balls; 705. a magnetic suction block; 8. a cable; 9. a fixing nut; 10. compressing the spring.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but 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. 1-6, an on-line monitoring device for full-voltage faults of a power distribution network includes a voltage detector 1, a heat dissipation assembly 2 is embedded in an outer top end of the voltage detector 1, the heat dissipation assembly 2 includes an air intake pipe 201, a hollow sleeve 202, a side branch 203, a heat dissipation fan 204, a filter screen 205 and a gas storage chassis 206, the hollow sleeve 202 is embedded in an outer top end of the voltage detector 1, the air intake pipe 201 is embedded in a top end of the hollow sleeve 202, the gas storage chassis 206 is embedded in a bottom end of the hollow sleeve 202, a heat dissipation fan 204 is embedded in an inner portion of the air intake pipe 201, the filter screen 205 is clamped in one side of the heat dissipation fan 204, the side branch 203 is uniformly embedded between an edge of an outer wall of the gas storage chassis 206 and an inner portion of the voltage detector 1, and a power input end of the heat dissipation fan 204 is electrically connected with an output end of a commercial power supply;
the partition assembly 7 is embedded and installed at the joint of the side branch 203 and the gas storage chassis 206, the partition assembly 7 comprises a gas inlet disk 701, a valve plate 702, a magnetic suction plate 703, a rubber airbag ball 704 and a magnetic suction block 705, the gas inlet disk 701 is embedded and installed at the joint of the side branch 203 and the gas storage chassis 206, the valve plate 702 is embedded and installed at the bottom end of the gas inlet disk 701, and the rubber airbag ball 704 is embedded and installed at the top end of the gas inlet disk 701;
the magnetic attraction block 705 is installed at the bottom of the rubber air bag ball 704, the magnetic attraction plate 703 is installed at the top of the valve plate 702, the magnetism of the bottom of the magnetic attraction block 705 is opposite to that of the top of the magnetic attraction plate 703, the height of the valve plate 702 is smaller than the diameter of the side branch pipe 203, ammonia is stored in the rubber air bag ball 704, when the ammonia in the rubber air bag ball 704 expands due to heating, the magnetic attraction block 705 is pushed to move downwards, the valve plate 702 can be integrally lifted up through connection and fixation between the rubber air bag ball 704 and the magnetic attraction block 705, the air inflow of the side branch pipe 203 at the corresponding position can be increased, and the heat dissipation efficiency of the side branch pipe 203 is accelerated.
The connecting component 3 is embedded and installed on one side of the outer wall of the voltage detector 1, the connecting component 3 comprises a fixed sleeve 301, a cable connector 302, a bayonet lock 303, a take-up reel 304 and a clamping groove 305, the fixed sleeve 301 is uniformly embedded and installed on one side of the outer wall of the voltage detector 1, the cable connector 302 is sleeved and installed inside the fixed sleeve 301, the bayonet lock 303 is embedded and installed at the top end of one side of the outer wall of the fixed sleeve 301, the take-up reel 304 is embedded and installed at the position of the voltage detector 1 corresponding to the fixed sleeve 301, and the cable 8 is uniformly wound and installed inside the take-up reel 304 corresponding to the bottom end of the cable connector 302.
The clamping groove 305 is formed in one side of the outer wall of the cable connector 302, the inner diameter of the clamping groove 305 is equal to the outer diameter of the bottom end of the clamping pin 303, the compression spring 10 is sleeved at the joint of the bottom end of the clamping pin 303 and the cable connector 302, the clamping pin 303 is inserted into the clamping groove 305 through the compression spring 10, the retracted cable connector 302 can be connected and fixed in the fixed sleeve 301, and the problem that the cable connector 302 is exposed outside and is easy to be damaged is solved.
The maintenance side cap 4 is all installed through fixation nut 9 embedding to voltage detector 1 outer wall both sides, and maintenance side cap 4 outer wall bottom has evenly seted up exhaust groove 5.
In order to ensure the firmness of the whole voltage detector 1 during placement and installation, the bottom end of the voltage detector 1 is provided with a support base 6, and the bottom end of the support base 6 is covered with a rubber gasket.
In order to reduce the fall of dust in the external environment from the top end of the air intake duct 201 into the inside of the voltage detector 1, the air intake duct 201 is arcuate in shape.
In order to make the operation of the cable 8 at the cable connector 302 more stable, the abrasion of the surface of the cable 8 is reduced, the flexible freedom of the cable 8 is realized, and the bottom end of the cable 8 is fixedly connected with the inside of the take-up reel 304 through a coil spring.
In summary, when the online monitoring device for full-voltage faults of the power distribution network provided by the invention works, firstly, air flow in the external environment can be sent into the voltage detector 1 in a dust-free way through the cooling fan 204 and the filter screen 205 in the air inlet pipeline 201, and the air flow can be respectively sent into heat accumulation positions in the voltage detector 1 under the actions of the hollow sleeve 202, the air storage chassis 206 and the side branch pipe 203, so that the directional cooling of the heat accumulation positions in the voltage detector 1 is achieved;
then, when the ammonia gas in the rubber air bag ball 704 is heated and expanded, the magnetic attraction block 705 is pushed to move downwards, the valve plate 702 is integrally lifted upwards through connection and fixation between the rubber air bag ball 704 and the magnetic attraction block 705, and the air inflow of the side branch pipe 203 at the corresponding position can be increased, so that the heat dissipation efficiency of the side branch pipe 203 with higher temperature is improved, the device is simple in structure and reliable in use;
finally, the cable connector 302 can be taken out and connected with the cable of the external equipment and fixed by stirring the bayonet lock 303, and the cable connector 302 can be retracted by pressing the cable connector 302 and engaging the bottom end of the bayonet lock 303 with the bayonet groove 305 under the action of the compression spring 10, so that the problem that the cable connector 302 is exposed and damaged is solved, meanwhile, the convenience of connection between the cable connector 302 and the cable is improved, and the smoothness of expansion and contraction of the cable 8 at the bottom end of the cable connector 302 is ensured by the take-up reel 304.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a full-voltage fault on-line monitoring equipment of distribution network, includes voltage detection appearance (1), its characterized in that, the outside top embedding of voltage detection appearance (1) is installed radiator unit (2), radiator unit (2) are including air inlet duct (201), cavity sleeve pipe (202), side branch pipe (203), radiator fan (204), filter screen (205) and gas storage chassis (206), the outside top embedding of voltage detection appearance (1) is installed cavity sleeve pipe (202), cavity sleeve pipe (202) top embedding is installed air inlet duct (201), cavity sleeve pipe (202) bottom embedding is installed gas storage chassis (206), air inlet duct (201) inside embedding is installed radiator fan (204), radiator fan (204) one side joint is installed filter screen (205), evenly install between gas storage chassis (206) outer wall edge with the inside side branch pipe (203), the power input of radiator fan (204) is connected with the output of mains electricity;
the partition assembly (7) is embedded and installed at the joint of the side branch pipe (203) and the air storage chassis (206), the partition assembly (7) comprises an air inlet disc (701), a valve plate (702), a magnetic suction plate (703), a rubber air bag ball (704) and a magnetic suction block (705), the air inlet disc (701) is embedded and installed at the joint of the side branch pipe (203) and the air storage chassis (206), the valve plate (702) is embedded and installed at the bottom end inside the air inlet disc (701), and the rubber air bag ball (704) is embedded and installed at the top end inside the air inlet disc (701);
the bottom end of the rubber air bag ball (704) is provided with the magnetic attraction block (705), the top end of the valve plate (702) is provided with the magnetic attraction plate (703), and the magnetism of the bottom end of the magnetic attraction block (705) is opposite to that of the top end of the magnetic attraction plate (703);
the height of the valve plate (702) is smaller than the diameter of the side branch pipe (203), and ammonia is stored in the rubber air bag ball (704).
2. The power distribution network full-voltage fault on-line monitoring equipment according to claim 1, wherein a connecting component (3) is embedded and installed on one side of the outer wall of the voltage detector (1), the connecting component (3) comprises a fixed sleeve (301), a cable connector (302), a bayonet lock (303), a take-up reel (304) and a clamping groove (305), the fixed sleeve (301) is uniformly embedded and installed on one side of the outer wall of the voltage detector (1), the cable connector (302) is mounted in the fixed sleeve (301) in a sleeved mode, the bayonet lock (303) is embedded and installed on the top end of one side of the outer wall of the fixed sleeve (301), the take-up reel (304) is embedded and installed on the position of the voltage detector (1) corresponding to the fixed sleeve (301), and a cable (8) is uniformly wound and installed on the inner side of the take-up reel (304) corresponding to the bottom end of the cable connector (302).
3. The power distribution network full-voltage fault on-line monitoring device according to claim 2, wherein the clamping groove (305) is formed in one side of the outer wall of the cable connector (302), the inner diameter of the clamping groove (305) is equal to the outer diameter of the bottom end of the clamping pin (303), and the compression spring (10) is sleeved at the joint of the bottom end of the clamping pin (303) and the cable connector (302).
4. The full-voltage fault on-line monitoring equipment for the power distribution network according to claim 1, wherein the maintenance side covers (4) are embedded and installed on two sides of the outer wall of the voltage detector (1) through fixing nuts (9), and exhaust grooves (5) are uniformly formed in the bottom ends of the outer walls of the maintenance side covers (4).
5. The power distribution network full-voltage fault on-line monitoring device according to claim 1, wherein a supporting base (6) is installed at the bottom end of the voltage detector (1), and a rubber gasket is attached to the bottom end of the supporting base (6).
6. An on-line monitoring device for full voltage faults in a power distribution network according to claim 1 in which the inlet duct (201) is arcuate in shape.
7. The equipment for on-line monitoring of full-voltage faults of power distribution networks according to claim 2 is characterized in that the bottom end of the cable (8) is fixedly connected with the inside of the take-up reel (304) through a coil spring.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010526611.5A CN112153857B (en) | 2020-06-11 | 2020-06-11 | Full-voltage fault on-line monitoring equipment for power distribution network |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010526611.5A CN112153857B (en) | 2020-06-11 | 2020-06-11 | Full-voltage fault on-line monitoring equipment for power distribution network |
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| CN112153857A CN112153857A (en) | 2020-12-29 |
| CN112153857B true CN112153857B (en) | 2023-07-14 |
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| CN113281558B (en) * | 2021-04-20 | 2023-09-05 | 国网新疆电力有限公司昌吉供电公司 | Overvoltage detection alarm device for power distribution network |
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| CN101586861A (en) * | 2008-05-23 | 2009-11-25 | 华为技术有限公司 | Heat exchange device and machine cabinet |
| EP2194628A1 (en) * | 2008-12-02 | 2010-06-09 | Ormazabal Protection & Automation, S.L. | Fault protection system for a network area of a high voltage distribution network |
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| CN112153857A (en) | 2020-12-29 |
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