CN116316111B - Power distribution network overvoltage monitoring equipment based on optical fiber information communication - Google Patents

Power distribution network overvoltage monitoring equipment based on optical fiber information communication Download PDF

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Publication number
CN116316111B
CN116316111B CN202310279604.3A CN202310279604A CN116316111B CN 116316111 B CN116316111 B CN 116316111B CN 202310279604 A CN202310279604 A CN 202310279604A CN 116316111 B CN116316111 B CN 116316111B
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China
Prior art keywords
distribution transformer
carbon dioxide
elastic
fixed
equipment
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CN202310279604.3A
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Chinese (zh)
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CN116316111A (en
Inventor
王亮
费传鹤
范澜
黄宏
吕锐
何军
高晨
王惠君
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Liuan Power Supply Co of State Grid Anhui Electric Power Co Ltd
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Liuan Power Supply Co of State Grid Anhui Electric Power Co Ltd
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C2/00—Fire prevention or containment
    • A62C2/04—Removing or cutting-off the supply of inflammable material
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C2/00—Fire prevention or containment
    • A62C2/06—Physical fire-barriers
    • A62C2/10—Fire-proof curtains
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C2/00—Fire prevention or containment
    • A62C2/06—Physical fire-barriers
    • A62C2/24—Operating or controlling mechanisms
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
    • A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
    • B01D46/0036—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions by adsorption or absorption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/0084—Arrangements for measuring currents or voltages or for indicating presence or sign thereof measuring voltage only
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/02—Casings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/02—Casings
    • H01F27/022—Encapsulation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/08—Cooling; Ventilating
    • H01F27/10—Liquid cooling
    • H01F27/105—Cooling by special liquid or by liquid of particular composition
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/40—Structural association with built-in electric component, e.g. fuse
    • H01F27/402—Association of measuring or protective means
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/24—Circuit arrangements for boards or switchyards
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/26—Casings; Parts thereof or accessories therefor
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/26—Casings; Parts thereof or accessories therefor
    • H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/54—Anti-seismic devices or installations
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/56—Cooling; Ventilation
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
    • H02H5/04—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00001—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00002—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by monitoring
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
    • H02J13/00016—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using a wired telecommunication network or a data transmission bus
    • H02J13/00017—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using a wired telecommunication network or a data transmission bus using optical fiber
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
    • H02J13/00034—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving an electric power substation
    • 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
    • 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
    • H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
    • H05K7/20945—Thermal management, e.g. inverter temperature control
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/40—Structural association with built-in electric component, e.g. fuse
    • H01F27/402—Association of measuring or protective means
    • H01F2027/406—Temperature sensor or protection

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  • Physics & Mathematics (AREA)
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  • Business, Economics & Management (AREA)
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  • Health & Medical Sciences (AREA)
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  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Housings And Mounting Of Transformers (AREA)

Abstract

The invention relates to the technical field of power distribution network safety auxiliary equipment, and particularly discloses power distribution network overvoltage monitoring equipment based on optical fiber information communication. According to the invention, the monitoring end of the overvoltage monitor is connected with the voltage transformer of the distribution transformer, and the overvoltage monitor rapidly and accurately identifies various fault states of the power grid by sampling and analyzing primary and secondary signals of the voltage transformer of the distribution transformer, and performs operations such as alarming, recording, wave recording, remote transmission and the like, so that the distribution transformer can be monitored in real time at any moment, and the situation that the distribution transformer is difficult to find in time when an accident occurs is avoided.

Description

Power distribution network overvoltage monitoring equipment based on optical fiber information communication
Technical Field
The invention relates to the technical field of power distribution network safety auxiliary equipment, in particular to power distribution network overvoltage monitoring equipment based on optical fiber information communication.
Background
In an urban power grid system, a main network refers to a power grid with a voltage level of 110KV and above, and mainly plays a role in connecting regional high-voltage (220 KV and above) power grids, and a role in supplying power to each power distribution station and various electric loads in the city, wherein the power distribution network refers to a power grid with a voltage level of 35KV and below.
The distribution transformer is one of important equipment in the distribution network system, it plays an important role in the distribution network system, because of its cost is expensive and in the important effect of distribution network system, usually need use monitoring equipment to monitor its running state, even such equipment among the prior art also has the function of carrying out emergency treatment when the condition such as to long-time overload, short circuit even spontaneous combustion, but emergency treatment adopts automatic spraying or other comparatively violent fire extinguishing modes more often, this kind of mode can damage distribution transformer, and the security performance is not high, the safety protection function of the self-contained of current such monitoring equipment is imperfect in addition, can't satisfy the demand that whole distribution network overvoltage monitoring equipment homoenergetic can use for a long time under multiple different service environment.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a power distribution network overvoltage monitoring device based on optical fiber information communication.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the power distribution network overvoltage monitoring equipment based on optical fiber information communication comprises a monitoring mechanism and a distribution transformer, wherein the monitoring mechanism, the distribution transformer and an external master control terminal are electrically connected, and data between the external master control terminal and a power distribution network control master station are transmitted through optical fiber communication;
the power distribution network control console is used for supervising and controlling the whole power distribution network;
the external general control terminal is used for receiving and transmitting the data detected by the monitoring mechanism and controlling the operation of the power distribution network overvoltage monitoring equipment;
the intelligent monitoring device comprises a base plate, and is characterized in that the top of the base plate is connected with two top plates through four sliding rods, two connecting plates are fixed between the two top plates, two sides of each fixing plate are respectively fixed at the ends of the two groups of connecting plates, a monitoring mechanism and a temperature control mechanism are respectively arranged on the upper surface and the lower surface of each fixing plate, two elastic belts are connected on the four sliding rods through sliding mechanisms, protection mechanisms are respectively arranged on opposite surfaces of the two elastic belts, a distribution transformer is located between the two protection mechanisms, and two emergency treatment mechanisms are symmetrically arranged between the four sliding rods.
The protection mechanism comprises elastic flame-retardant fabrics which are respectively fixed on the opposite surfaces of the two elastic belts, the opposite surfaces of the two elastic flame-retardant fabrics are respectively provided with an air bag, and the opposite surfaces of the two elastic flame-retardant fabrics are provided with sealing components which are matched with each other.
The sealing component comprises an upper cover and a lower cover which are respectively arranged on opposite sides of the two elastic flame-retardant fabrics and matched with each other, the upper cover and the lower cover are both positioned between the elastic flame-retardant fabrics and the air bag and wrap the air bag, and clamping grooves are formed in the upper cover and the lower cover.
The opposite surfaces of the two air bags are respectively provided with a layer of silica gel dust pad, the opposite surfaces of the two elastic belts are respectively provided with a layer of filter pad, and the filter pads are internally provided with activated carbon bags.
The monitoring mechanism comprises an overvoltage monitor, a temperature monitor and a smoke sensor which are arranged on a fixed plate, a protective shell is arranged on the fixed plate, the overvoltage monitor is positioned in the protective shell, and an operation window matched with an instrument panel of the overvoltage monitor is arranged on the protective shell.
The temperature control mechanism comprises a liquid carbon dioxide tank and a gaseous carbon dioxide tank which are arranged at the bottom of the fixed plate, wherein the liquid carbon dioxide tank and the gaseous carbon dioxide tank are respectively connected with an external electric air pump through a telescopic corrugated pipe and then are communicated with the air bag, and an electric heating wire is arranged in a communicating pipe between the gaseous carbon dioxide tank and the corrugated pipe.
The sliding mechanism comprises two electric sliding sleeves respectively arranged on each sliding rod, and the ends of the two elastic bands are respectively fixed on the side surfaces of the four groups of electric sliding sleeves.
Two that vertically are adjacent all be fixed with the second dead lever between the electronic sliding sleeve, all with the second dead lever middle part all be fixed with a ceramic adapter, a ceramic adapter side-mounting has a plurality of interfaces, and ceramic adapter another side is fixed with first dead lever, installs a mounting bracket between two first dead levers, and the mounting bracket is located between two silica gel dust bonding pads, and the diameter size and the draw-in groove looks adaptation of first dead lever, distribution transformer sets up inside the mounting bracket, and the interface electricity on distribution transformer and the ceramic adapter is connected.
The emergency treatment mechanism comprises a supporting plate fixed between two longitudinally adjacent electric sliding sleeves, a fixing block is fixed at the end part of the supporting plate, and an impact head is mounted on one side, close to the ceramic adapter, of the fixing block.
Compared with the prior art, the invention has the beneficial effects that:
1: according to the invention, the monitoring end of the overvoltage monitor is connected with the voltage transformer of the distribution transformer, the overvoltage monitor rapidly and accurately identifies various fault states of the distribution transformer by sampling and analyzing the primary and secondary signals of the voltage transformer of the distribution transformer, and performs operations such as alarming, recording and wave recording, and the like, and transmits data to the external master control terminal, the external master control terminal transmits the data to the distribution network control master station through optical fiber communication, and the distribution network control master station recognizes common fault signals such as voltage threshold crossing, PT wire breakage, various single-phase grounding, ferromagnetic resonance or operation overvoltage, system resonance and the like of the distribution transformer, and simultaneously analyzes the fault signals, and controls the external master control terminal to execute different commands according to different fault signals.
2: due to the arrangement of the protection mechanism, when the condition that the distribution transformer is seriously overloaded or even is about to catch fire is detected, the temperature monitor and the smoke sensor together transmit data to the external master control terminal, the external master control terminal executes a command of the power distribution network control master platform, the protection mechanism is controlled to be started, the elastic flame-retardant cloth fixed on the opposite surfaces of the two elastic bands is utilized, the distribution transformer is wrapped by the elastic flame-retardant cloth, the upper cover and the lower cover which are close to each other and gradually closed when the distribution transformer catches fire, fire extinguishing treatment is carried out, fire extinguishing of the distribution transformer is difficult to be carried out, other equipment is prevented from being influenced by leakage of combustion substances generated by the distribution transformer when the distribution transformer catches fire, liquid carbon dioxide or gaseous carbon dioxide filled in the two air bags are matched to carry out auxiliary fire extinguishing, air in a wrapping environment formed between the two elastic flame-retardant cloths is extruded through the elastic flame-retardant cloth and the elastic bands, thereby three oxygen essential elements of combustion are reduced, the purpose of fire extinguishing can be achieved by adopting a fast fire extinguishing mode, and the purpose of reducing fire extinguishing loss of a wrapping space formed between the two elastic flame-retardant cloths is achieved, and the fire extinguishing loss can be reduced to the greatest.
3: due to the arrangement of the temperature control mechanism, the two air bags can be contacted with the upper surface and the lower surface of the distribution transformer under the action of the electric sliding sleeve, vibration generated by the distribution transformer during operation can be effectively reduced to a certain extent, meanwhile, gaseous carbon dioxide with certain heat can be filled into the two air bags under the condition of low external environment temperature of the equipment, the distribution transformer is heated at a certain constant temperature by utilizing the heat carried by the gaseous carbon dioxide through the air bags and the silica gel dust-binding pad, the external surface of the distribution transformer can be quickly melted when the external surface of the distribution transformer is covered by ice and snow under the condition of low external environment temperature of the equipment, the normal use of the distribution transformer is ensured, the energy consumed by melting ice and snow by the self-working heating of the distribution transformer is reduced, and when the liquid carbon dioxide is filled into the two air bags, the external environment temperature of the equipment is higher, the low temperature characteristic of liquid carbon dioxide is utilized, the distribution transformer is subjected to certain cooling and heat dissipation treatment through the air bags and the silica gel dust adhering pad, the damage caused by heating and scalding under the condition that the distribution transformer is used for a long time is avoided, the two air bags are contacted with the distribution transformer to drive the silica gel dust adhering pad to be contacted with the distribution transformer, dust and the like adhering to the surface of the distribution transformer can be adhered and removed through the silica gel dust adhering pad, the heat dissipation function and the normal work of the distribution transformer are prevented from being influenced by the dust adhering to the surface of the distribution transformer, meanwhile, the insulation property of the silica gel dust adhering pad is utilized, the insulation property of the air bags and the distribution transformer is ensured through the silica gel dust adhering pad when the air bags drive the silica gel dust adhering pad, the electric leakage phenomenon of the distribution transformer is prevented from being generated when the liquid carbon dioxide is filled in the air bags and the air bags are damaged, and the distribution transformer is prevented from being electrically conducted to the outside to influence safety, the setting of control by temperature change mechanism makes the safety protection function of whole distribution network overvoltage monitoring equipment more comprehensive to make distribution network overvoltage monitoring equipment can be applicable to multiple different service environment.
4: because the setting of emergency treatment mechanism, when starting electronic sliding sleeve, electronic sliding sleeve can drive the striking head and strike ceramic adapter when driving two elasticity fire-retardant cloths and do opposite direction motion and wrap up the distribution transformer, thereby can utilize two elasticity fire-retardant cloths and upper cover, the lower cover of gradually closing to carry out the parcel to the distribution transformer of fire and put out a fire with ceramic adapter and break up, thereby break off external equipment and the circuit connection of distribution transformer, avoid it to take place the electricity and fire and lead to the fact bigger conflagration through connecting wire and other equipment, and can utilize the filter pad of two elastic belt opposite sides installation to filter the smog that produces when the distribution transformer of fire burns when closed, can carry out certain filtration to the harmful gas in its smog, guarantee surrounding air environment, the harm when the personnel of the emergency rescue and repair.
Drawings
Fig. 1 is an isometric view of a power distribution network overvoltage monitoring device based on optical fiber information communication;
FIG. 2 is an enlarged detail view of area A of FIG. 1;
fig. 3 is an isometric view of a local structure of an overvoltage monitoring device of a power distribution network based on optical fiber information communication;
fig. 4 is a schematic structural diagram of an airbag and elastic flame-retardant cloth of the power distribution network overvoltage monitoring device based on optical fiber information communication, wherein an upper cover and a lower cover are not installed;
fig. 5 is a schematic structural diagram of an upper cover of a power distribution network overvoltage monitoring device based on optical fiber information communication;
fig. 6 is a schematic structural diagram of a lower cover of a power distribution network overvoltage monitoring device based on optical fiber information communication;
fig. 7 is a front view of an overvoltage monitoring device for a power distribution network based on optical fiber information communication.
In the figure: 1. a bottom plate; 2. a slide bar; 3. an electric sliding sleeve; 4. a bellows; 5. a filter pad; 6. an elastic band; 7. elastic flame retardant cloth; 8. a silicone adhesive dust pad; 9. an air bag; 10. an upper cover; 11. a lower cover; 12. a top plate; 13. a connecting plate; 14. a fixing plate; 15. a protective shell; 16. a liquid carbon dioxide tank; 17. a gaseous carbon dioxide tank; 18. a first fixing rod; 19. a ceramic adapter; 20. an overvoltage monitor; 21. a mounting frame; 22. a support plate; 23. a fixed block; 24. an impact head; 25. and a second fixing rod.
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.
1-7, an overvoltage monitoring device of a power distribution network based on optical fiber information communication comprises a monitoring mechanism and a distribution transformer, wherein the monitoring mechanism is electrically connected with the distribution transformer, the monitoring mechanism is electrically connected with an external master control terminal, and data between the external master control terminal and a power distribution network control master station are transmitted through optical fiber communication; the power distribution network control master is used for supervising and controlling the whole power distribution network; the external general control terminal is used for receiving and transmitting the data detected by the monitoring mechanism and controlling the operation of the overvoltage monitoring equipment of the power distribution network; the monitoring end of the voltage monitor is connected with the voltage transformer of the distribution transformer, the overvoltage monitor samples and analyzes primary and secondary signals of the voltage transformer of the distribution transformer, rapidly and accurately identifies various fault states of the distribution transformer, performs operations such as alarming, recording and wave recording, transmits data to an external master control terminal, and transmits the data to a distribution network control master station through optical fiber communication by the external master control terminal.
As a technical optimization scheme of the invention, the monitoring mechanism comprises an overvoltage monitor 20, a temperature monitor and a smoke sensor which are arranged on a fixed plate 14, other monitoring elements can be added according to actual application requirements, the temperature monitor and the smoke sensor are directly connected with an external general control terminal, a protective shell 15 is arranged on the fixed plate 14, the overvoltage monitor 20 is positioned in the protective shell 15, an operation window matched with an instrument panel of the overvoltage monitor 20 is arranged on the protective shell 15, the monitoring end of the overvoltage monitor 20 is connected with a voltage transformer of a distribution transformer, various fault states of a power grid are rapidly and accurately identified through sampling and analyzing primary and secondary signals of the voltage transformer of the distribution transformer, and alarm, recording, wave recording, remote transmission and other operations are performed, so that faults which are common to the power grid and are easy to cause tripping accidents, such as PT broken lines, various single-phase grounding, ferromagnetic resonance or operation overvoltage, system resonance and the like are identified and alarm processing are performed, and meanwhile, the monitoring of the distribution transformer can be performed timely, and the fault waveform analysis is prevented from being difficult to find when the fault is caused.
As a technical optimization scheme of the invention, the temperature control mechanism comprises a liquid carbon dioxide tank 16 and a gaseous carbon dioxide tank 17 which are arranged at the bottom of a fixed plate 14, wherein the liquid carbon dioxide tank 16 and the gaseous carbon dioxide tank 17 are respectively connected with an external electric air pump through a telescopic corrugated pipe 4 and then communicated with an air bag 9, an electric heating wire is arranged in a communicating pipe of the gaseous carbon dioxide tank 17 and the corrugated pipe 4, gaseous carbon dioxide containing certain heat is filled into the two air bags 9 when the external environment temperature of the equipment is low, the air bags 9 and a silica gel dust pad 8 are utilized to heat the distribution transformer at certain constant temperature by utilizing the heat carried by the gaseous carbon dioxide, the external surface of the distribution transformer is quickly melted when the external environment temperature of the equipment is low, the normal use of the distribution transformer is ensured, the energy consumed by the self-heating and melting of the distribution transformer is reduced, and the low-temperature characteristic of the liquid carbon dioxide is utilized when the external environment temperature of the equipment is high, the distribution transformer is cooled by the low-temperature characteristic of the liquid carbon dioxide, and the silica gel dust pad 8 is utilized to heat the distribution transformer to perform certain constant temperature heating treatment, so that the distribution transformer is prevented from being damaged by the heat generation time of the heat generation. The electric heating wire can perform certain heating treatment on the gaseous carbon dioxide, and can be used when the gaseous carbon dioxide with certain temperature is filled into the air bag 9 under the condition that the external environment temperature of the equipment is low.
As a technical optimization scheme of the invention, the sliding mechanism comprises two electric sliding sleeves 3 respectively arranged on each sliding rod 2, and the ends of two elastic bands 6 are respectively fixed on the side surfaces of four groups of electric sliding sleeves 3.
As a technical optimization scheme of the invention, a second fixing rod 25 is fixed between two longitudinally adjacent electric sliding sleeves 3, the end parts of the two second fixing rods 25 positioned above are connected to the side wall at the bottom of the electric sliding sleeve 3, the end parts of the two second fixing rods 25 positioned below are connected to the side wall at the top of the electric sliding sleeve 3, the middle parts of all the second fixing rods 25 are fixedly provided with a ceramic adapter 19, one side surface of the ceramic adapter 19 is provided with a plurality of interfaces, the other side surface of the ceramic adapter 19 is fixedly provided with a first fixing rod 18, an installation frame 21 is installed between the two first fixing rods 18, the installation frame 21 is positioned between the two silica gel dust-sticking pads 8, the diameter of the first fixing rod 18 is matched with a clamping groove, a distribution transformer is arranged inside the installation frame 21, the distribution transformer is electrically connected with the interfaces on the ceramic adapter 19, the electric sliding sleeve 3 drives two elastic flame-retardant cloths 7 to move in opposite directions to wrap the distribution transformer, the impact head 24 can be driven to impact the ceramic adapter 19, and when the two elastic flame-retardant cloths 7 are used for wrapping the distribution transformer, the ceramic adapter 19 can be further connected with a fire-extinguishing circuit through a fire-extinguishing device when the fire-extinguishing device is broken, and the fire-extinguishing device is connected with the fire-extinguishing device; due to the arrangement of the clamping grooves on the upper cover 10 and the lower cover 11, the first fixing rod 18 can be conveniently placed, and the situation that the wrapping effect of the two elastic flame-retardant cloths 7 on the distribution transformer is affected due to the fact that a large gap is generated between the first fixing rod 18 and the two elastic flame-retardant cloths 7 is avoided.
As a technical optimization scheme of the invention, the emergency treatment mechanism comprises a supporting plate 22 fixed between two longitudinally adjacent electric sliding sleeves 3, a fixing block 23 is fixed at the end part of the supporting plate 22, an impact head 24 is arranged at one side of the fixing block 23, which is close to the ceramic adapter 19, and a longitudinal cutter is arranged in the impact head 24, so that the ceramic adapter 19 can be broken conveniently.
The model of the overvoltage monitor in the invention is as follows: the JSM (IM 2000)/MC intelligent combined overvoltage on-line monitor, the temperature monitor and the smoke sensor can be any one of the common on-market, and the JSM (IM 2000)/MC intelligent combined overvoltage on-line monitor is directly utilized in the prior art and is not described herein.
When the invention is used, a distribution transformer is arranged between two mounting frames 21, and the monitoring end of an overvoltage monitor 20 is connected with a voltage transformer which is connected with the distribution transformer through a ceramic adapter 19; the overvoltage monitor 20 rapidly and accurately identifies various fault states of the power grid by sampling and analyzing primary and secondary signals of a voltage transformer of the distribution transformer, performs operations such as alarming, recording and wave recording, and the like, transmits data to an external master control terminal, and transmits the data to the power distribution network control master station through optical fiber communication by the external master control terminal.
When emergency treatment is needed, for example, when a distribution transformer fires and burns due to faults or other reasons, the temperature monitor and the smoke sensor transmit signals to an external master control terminal together, the external master control terminal feeds data back to a power distribution network control master platform, the power distribution network control master platform starts an electric sliding sleeve 3 by using the external master control terminal after receiving the signals, the electric sliding sleeve 3 drives two elastic belts 6 to move in opposite directions, and the two elastic belts 6 drive two elastic flame-retardant cloths 7 to move in opposite directions; the electric sliding sleeve 3 drives the supporting plate 22 to move when moving in the opposite direction, and drives the impact head 24 to move in the opposite direction through the supporting plate 22 until the impact head 24 breaks up the ceramic adapter 19, and the connection between the distribution transformer and external equipment is cut off in advance, so that larger fire caused by ignition of other equipment through a connecting wire when the distribution transformer is electrically in fire is avoided. In the process that the ceramic adapter 19 is broken by the impact head 24, the upper cover 10 and the lower cover 11 are mutually close and gradually closed, and can drive the two elastic flame-retardant cloths 7 to be attached, when a distribution transformer breaks out a fire, the distribution transformer can be wrapped by the elastic flame-retardant cloths 7 and the gradually closed upper cover 10 and lower cover 11 by utilizing the elastic property of the elastic flame-retardant cloths 7, so that fire extinguishing treatment is realized, and the difficulty in extinguishing and igniting other equipment when the distribution transformer breaks out the fire is avoided; meanwhile, when the two elastic flame-retardant cloths 7 wrap the burning distribution transformer for fire extinguishment, the leakage of burning substances generated by the distribution transformer can be reduced, and other equipment is influenced; the two air bags 9 are burned together, so that liquid carbon dioxide or gaseous carbon dioxide filled in the two air bags can be sprayed out for auxiliary fire extinguishment, and the liquid carbon dioxide or the gaseous carbon dioxide can extrude air in a wrapping environment formed between the two elastic flame retardant fabrics 7 through gaps on the elastic flame retardant fabrics 7 and the elastic belts 6, so that oxygen which is one of three essential elements of combustion is reduced, oxygen in a wrapping space formed between the two elastic flame retardant fabrics 7 is thin to achieve the aim of rapid fire extinguishment, and the purpose of rapid fire extinguishment under the condition of fire disaster of the distribution transformer is ensured to reduce loss to the greatest extent; and the filter pad 5 arranged on the opposite surfaces of the two elastic bands 6 can be used for filtering the smoke generated when the distribution transformer in fire disaster burns, and can be used for filtering the harmful gas in the smoke to a certain extent, so that the surrounding air environment is ensured, and the harm to the rescue and relief personnel in fire disaster repair is reduced.
When the temperature detector detects that the external environment temperature of equipment is low, even ice and snow are covered on the outer surface of a distribution transformer, at the moment, the temperature detector transmits data to an external master control terminal, the external master control terminal feeds the data back to a power distribution network control master station and executes a command of the power distribution network control master station, an external electric air pump, an electric heating wire and an electric sliding sleeve 3 are started through the external master control terminal, the electric heating wire heats gaseous carbon dioxide to a certain extent, the gaseous carbon dioxide containing certain heat is filled into two air bags 9, under the action of the electric sliding sleeve 3, the air bags 9 are inflated and expanded to drive a silica gel dust pad 8 to be in contact with the distribution transformer, at the moment, an impact head 24 connected between the electric sliding sleeves 3 through a supporting plate 22 moves for a proper distance and does not interfere with a ceramic adapter 19, and the distribution transformer is heated to a certain constant temperature through the air bags 9 and the silica gel dust pad 8 by utilizing the heat carried by the gaseous carbon dioxide; the external surface of the distribution transformer can be quickly melted when being covered by ice and snow under the condition of low temperature of the external environment of the equipment, so that the normal use of the distribution transformer is ensured, and the energy consumed by melting ice and snow by utilizing the working heat of the distribution transformer is reduced; meanwhile, when the external environment temperature of the equipment is high, a certain amount of liquid carbon dioxide can be filled into the two equipment through the corrugated pipe 4, and the distribution transformer is subjected to certain cooling and heat dissipation treatment through the air bag 9 and the silica gel dust pad 8 by utilizing the low-temperature characteristic of the liquid carbon dioxide, so that the damage caused by heating and scalding of the distribution transformer after long-time use is avoided; when the two air bags 9 are in contact with the distribution transformer, the silicon adhesive dust pad 8 is driven to be in contact with the distribution transformer, dust and the like attached to the surface of the distribution transformer can be removed by the silicon adhesive dust pad 8, and the influence of dust accumulation on the surface of the distribution transformer on the heat dissipation function and the normal operation of the distribution transformer is avoided; meanwhile, by utilizing the insulating property of the silica gel material of the silica gel dust pad 8, the insulation property of the air bag 9 and the distribution transformer can be ensured by utilizing the silica gel dust pad 8 when the air bag 9 drives the silica gel dust pad 8, so that the phenomenon that the distribution transformer is electrically conductive to the outside when liquid carbon dioxide is filled in the air bag 9 and the air bag 9 is damaged is avoided, and the safety is influenced; and utilize two gasbag 9 to contact with distribution transformer upper and lower two sides under electronic sliding sleeve 3 effect, can effectively carry out certain reduction to the vibration that distribution transformer produced when the during operation, reduce the vibration that distribution transformer produced when normal operating to the life of extension distribution transformer.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.

Claims (1)

1. The power distribution network overvoltage monitoring equipment based on optical fiber information communication comprises a monitoring mechanism and a distribution transformer, and is characterized in that the monitoring mechanism, the distribution transformer and an external master control terminal are electrically connected, and data between the external master control terminal and a power distribution network control master station are transmitted through optical fiber communication;
the power distribution network control console is used for supervising and controlling the whole power distribution network;
the external general control terminal is used for receiving and transmitting the data detected by the monitoring mechanism and controlling the operation of the power distribution network overvoltage monitoring equipment;
the intelligent control device is characterized by further comprising a bottom plate (1), wherein the top of the bottom plate (1) is connected with two top plates (12) through four sliding rods (2), two connecting plates (13) are fixed between the two top plates (12), two sides of a fixing plate (14) are respectively fixed at the end parts of the two groups of connecting plates (13), a monitoring mechanism and a temperature control mechanism are respectively arranged on the upper surface and the lower surface of the fixing plate (14), two elastic bands (6) are connected on the four sliding rods (2) through sliding mechanisms, protection mechanisms are respectively arranged on the opposite surfaces of the two elastic bands (6), a distribution transformer is positioned between the two protection mechanisms, and two emergency treatment mechanisms are symmetrically arranged between the four sliding rods (2);
the protection mechanism comprises elastic flame-retardant fabrics (7) which are respectively fixed on opposite surfaces of the two elastic belts (6), air bags (9) are arranged on opposite surfaces of the two elastic flame-retardant fabrics (7), and sealing components which are mutually matched are arranged on opposite surfaces of the two elastic flame-retardant fabrics (7);
the sealing assembly comprises an upper cover (10) and a lower cover (11) which are respectively arranged on opposite surfaces of the two elastic flame-retardant cloths (7) and are matched with each other, the upper cover (10) and the lower cover (11) are both positioned between the elastic flame-retardant cloths (7) and the air bags (9) and wrap the air bags (9), and clamping grooves are formed in the upper cover (10) and the lower cover (11);
a layer of silica gel dust pad (8) is arranged on the opposite surfaces of the two air bags (9), a layer of filter pad (5) is arranged on the opposite surfaces of the two elastic belts (6), and an activated carbon bag is arranged in the filter pad (5);
the monitoring mechanism comprises an overvoltage monitor (20), a temperature monitor and a smoke sensor which are arranged on a fixed plate (14), a protective shell (15) is arranged on the fixed plate (14), the overvoltage monitor (20) is positioned in the protective shell (15), and an operation window matched with an instrument panel of the overvoltage monitor (20) is arranged on the protective shell (15);
the temperature control mechanism comprises a liquid carbon dioxide tank (16) and a gaseous carbon dioxide tank (17) which are arranged at the bottom of the fixed plate (14), the liquid carbon dioxide tank (16) and the gaseous carbon dioxide tank (17) are respectively connected with an external electric air pump through a telescopic corrugated pipe (4) and then are communicated with the air bag (9), and an electric heating wire is arranged in a communicating pipe between the gaseous carbon dioxide tank (17) and the corrugated pipe (4);
the sliding mechanism comprises two electric sliding sleeves (3) which are respectively arranged on each sliding rod (2), and the ends of two elastic bands (6) are respectively fixed on the side surfaces of the four groups of electric sliding sleeves (3);
a second fixing rod (25) is fixed between two longitudinally adjacent electric sliding sleeves (3), a ceramic adapter (19) is fixed in the middle of all the second fixing rods (25), a plurality of interfaces are installed on one side surface of the ceramic adapter (19), a first fixing rod (18) is fixed on the other side surface of the ceramic adapter (19), a mounting frame (21) is installed between the two first fixing rods (18), the mounting frame (21) is positioned between the two silica gel dust-binding pads (8), the diameter of the first fixing rods (18) is matched with the clamping grooves, a distribution transformer is arranged inside the mounting frame (21), and the distribution transformer is electrically connected with the interfaces on the ceramic adapter (19);
the emergency treatment mechanism comprises a supporting plate (22) fixed between two longitudinally adjacent electric sliding sleeves (3), a fixed block (23) is fixed in the middle of the supporting plate (22), and an impact head (24) is arranged on one side, close to the ceramic adapter (19), of the fixed block (23);
when the external environment temperature of the equipment is low, gaseous carbon dioxide containing certain heat is filled into the two air bags (9), the distribution transformer is heated at a certain constant temperature by utilizing the heat carried by the gaseous carbon dioxide through the air bags (9) and the silica gel dust pad (8), the external surface of the distribution transformer can be quickly melted when the external surface of the distribution transformer is covered by ice and snow in the low environment temperature of the equipment, normal use of the distribution transformer is ensured, the energy consumed by melting ice and snow by utilizing the working heat of the distribution transformer is reduced, and when liquid carbon dioxide is filled into the two air bags (9), the low-temperature characteristic of the liquid carbon dioxide is utilized when the external environment temperature of the equipment is higher, and the distribution transformer is subjected to certain cooling and heat dissipation treatment by utilizing the air bags (9) and the silica gel dust pad (8), so that the distribution transformer is prevented from being heated and scalded for a long time to be damaged; the electric heating wire can perform certain heating treatment on gaseous carbon dioxide, and can be used when the gaseous carbon dioxide with certain temperature is filled into the air bag (9) under the condition that the external environment temperature of equipment is low;
the electric sliding sleeve (3) drives the two elastic flame-retardant cloths (7) to move in opposite directions to wrap the distribution transformer, the impact head (24) can be driven to impact the ceramic adapter (19), and the ceramic adapter (19) can be broken when the two elastic flame-retardant cloths (7) are used for wrapping and extinguishing the distribution transformer in fire, so that the circuit connection between external equipment and the distribution transformer is disconnected, and the situation that other equipment is ignited to cause larger fire by connecting wires when the external equipment is in electric fire is avoided; the arrangement of the clamping grooves on the upper cover (10) and the lower cover (11) can facilitate the placement of the first fixing rod (18), and avoid the influence of larger gaps generated between the first fixing rod (18) and the two elastic flame-retardant cloths (7) on the wrapping effect of the two elastic flame-retardant cloths (7) on the distribution transformer;
the inside of the striking head (24) is provided with a longitudinal cutter which can conveniently crush the ceramic adapter (19).
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