Background art:
at present, the lightning arrester on the overhead distribution line is installed on an outdoor line cross arm, the national standard HY5W type composite coat metal oxide gapless lightning arrester is a lightning protection product with the most application in line lightning protection at present, namely, the lightning arrester is fixed on the line cross arm by using a fastening bolt, and a branch lead is required to be connected, when each year of preventive detection and maintenance is carried out, or when lightning strike damage occurs, the lightning arrester needs to be dismounted by climbing a pole and dismounting a nut, and then the lightning arrester is installed and fixed on the line cross arm after the test is qualified, the gapless lightning arrester is installed and fixed on the line cross arm after the system runs for a long time, the risk of easy aging damage exists, regular maintenance and replacement are needed, the lightning arrester is difficult to check after the lightning arrester is installed at a high position of the line and damaged, the ground fault point can be known through line patrol, a disconnector is installed at some places in a mode of isolating system current to avoid the ground, display is provided for line patrol, abnormal disconnection is often caused by the problems of quality, technology and the disconnector often causes abnormal disconnection, the increase of fault times and time, the time of line is mainly increased, the defect that once the lightning arrester is replaced, the lightning arrester is damaged, the overvoltage protection can only can be damaged by being damaged and the overvoltage protection can be damaged, and the overvoltage can be prevented once the overvoltage protection can be damaged by being damaged, and the overvoltage protection can be continuously damaged, and the overvoltage protection can be limited.
The other is a chamber arrester, which mainly moves the zinc oxide arrester body from the outdoor to the indoor, and reduces the influence of the natural environment on the arrester body; the lightning arrester can be detected, maintained and replaced by the aid of the insulating operating rod. However, the porcelain outer sleeve is heavy and fragile, once the lightning arrester breaks down and bursts, the splashed metal oxide and the fragile porcelain outer sleeve are easy to damage other electrical equipment and passers-by, and the porcelain outer sleeve is installed at the high position of a line and is inconvenient to construct; the lightning arrester is characterized in that a sealing design is not arranged between the lightning arrester body and the cavity, the lightning arrester is influenced by the environment after long-time operation, the cavity is easy to enter water vapor and salt stain to cause failure under the severe weather environment condition, and particularly in the coastal region with the region with higher salt mist concentration; because the sealing treatment is not carried out between the lightning arrester body and the cavity, the lightning arrester body needs to increase the insulation height and the creepage shed distance, thereby increasing the weight, and the lightning arrester is easy to drop due to over heavy dead weight, and the whole cost is also over high; the chamber part cannot be truly sealed and fully insulated; the intelligent power grid is difficult to be matched with and additionally provided with an intelligent detection device; when the separator bursts, the sagging separator drainage wire is too close to the electrical distance of the fracture, which can cause gap discharge; the puncture type clamping connection wire is adopted for electrifying, the connection wire at the transformer position between the power supply side and the user side is limited to be passive and can not be separated, the connection wire droops to the cable head of the transformer without a connection point, and the cost and the fault point are increased after the connection in midway.
The third is a patent with the authorization number of CN204189543, the invention packages an intelligent detection line and a zinc oxide arrester into a whole, and the analysis of the invention mainly has the following defects: firstly, once the zinc oxide lightning arrester is damaged by the influence of overvoltage or the lightning arrester is aged, the whole zinc oxide lightning arrester is scrapped, and the whole zinc oxide lightning arrester is scrapped due to the damage of an electronic detection line, so that huge waste is caused; the zinc oxide lightning arrester at the second point is hung for a long time to operate under high voltage, the valve plate can generate heat, and electronic elements on the line can be easily damaged due to the fact that the intelligent detection line and the valve plate are packaged into a whole; thirdly, the sampling circuit adopts a series resistance voltage division method, so that the sampling resistor and the zinc oxide resistor need to be connected in series and grounded, and an electronic circuit is easy to damage due to the introduction of lightning strike heavy current; the fourth point is that the wireless channel is adopted to transmit data, and an ultra-high power radio transceiver cannot be arranged under the influence of radio management regulations, so that the data cannot be directly transmitted to a background server in a long distance, the wireless transmission distance is short, and the data can be transmitted farther only by adding a relay. The fifth point is that the invention has no GPS or Beidou positioning function, can not realize real-time geographic positioning when a fault occurs, and is inconvenient for operation and maintenance personnel to quickly navigate the geographic position of the fault point; and in the sixth point, the invention has no disconnector and can not isolate the closed circuit ground current caused by the lightning arrester.
The invention content is as follows:
the invention aims to overcome the defects and aims to provide a separable strut type intelligent lightning arrester device, which is open-type and can prevent electromagnetic induction, an operating rod can be used for assembling or disassembling a lightning arrester body and a disconnector through hot-line work without a bypass, and the lightning arrester device can be quickly plugged, repaired and replaced, so that inconvenience caused by power failure is reduced, and the repair and maintenance efficiency is improved; the strut type strip busbar structure can support and respectively connect and connect the power supply side and the transformer side wires, and reduces special lead wires and special insulators for the lightning arrester; the light insulation cavity is molded by light hard PC insulation materials with high strength and high electrical performance, better explosion resistance and aging resistance and greatly reduced weight of the whole device, is arranged at the high position of a line, and cannot cause larger burden; monitoring the lightning arrester and the disconnector in real time when the lightning arrester and the disconnector are damaged by overvoltage and faults occur in flat running, comprehensively analyzing the running state, sending a short message to inform an operation and maintenance worker of a mobile phone, and displaying information such as fault positions, lightning stroke times, leakage current and the like;
(II) technical scheme
In order to achieve the above object, the present invention provides a separable pillar type intelligent lightning arrester device, comprising: the lead-out type mounting bracket (1), the light insulating cavity 2, the insulating shield 3, the connecting plate 4, the electricity testing grounding rod 5, the upper contact piece 6, the upper contact 7, the upper insulating waterproof piston ring 8, the lightning arrester body 9, the open type contact ring 10, the lower insulating waterproof piston ring 11, the open type contact piece fixing ring 12, the contact piece 13, the open type elastic tension spring 14, the sealing ring 15, the monitoring device 16, the disconnector 17, the isolating insulating sheath 18, the open-close type electricity testing grounding rod cover 19, the metal connecting rod 20, the busbar 21, the insulating lead 22, the wiring terminal 23 and the like. The distribution network station area equipment end lightning protection and the operation overvoltage are joined in marriage to the main application, can live working with assemblies such as insulating bar plug monitoring devices 16 and arrester body 9, carry out quick maintenance, change, reduce a great deal of inconvenience that the outage brought, improve and install additional and the efficiency of overhauing.
The utility model provides a separable support type intelligence arrester device, connecting plate (4) are rolled over into the right angle, and one end (4.1) light-duty compound insulation cavity (2) top of spiro union and upper contact piece (6) are filled up between have sealing washer (15), carry out sealing process, prevent that the arrester top from getting into aqueous vapor and salt stain, destroying the inside sealed of arrester in thunderstorm weather, the harsh climatic environment of coast.
The utility model provides a screw is reserved at (4.2) and (4.3) both ends on the separable support type intelligence arrester device, on linking bridge 4, can overlap the spiro union mutually with female arranging (21) and binding post (23), but insulating wire (22) on the transmission line direct crimping on binding post (23), do not need branch drainage line and insulator transition, simplify, simple to operate is swift.
A separable strut type intelligent lightning arrester device is characterized in that one end of an electricity testing grounding rod (5) penetrates through a middle hole of a busbar (21) and is in threaded connection with a connecting plate (4); the other end of testing electric earthing pole (5) is equipped with the cross bore, open-close type is installed with the pin and is tested electric earthing pole cover (19), the earthing pole bottom is pasted with rubber, make the integrated device have no naked dew point of electric, the operation can not let the whole electrical property of arrester receive the influence under abominable natural condition yet, whether convenient inspection circuit is electrified, can directly pull open-close type when articulating the bypass ground wire and test electric earthing pole cover (19) and directly articulate, need not to destroy other circuits and connect again.
A separable strut-type intelligent arrester device, the light-weight insulating cavity (2) is the strenghthened type, it is convenient to support the tower structure of the wire, the large and small umbrella skirt structure cooperates and meets the creepage distance requirement, the umbrella skirt above is greater than the next umbrella skirt, large and small again, play the antifouling and prevent drooping icicle of the rain-proof curtain from adhering to other umbrella skirts, have certain effects of stopping the snow ladle too, make the arrester insulate more reliably under the natural disaster; the chamber inner wall has conicity more than half degree from top to bottom, and the 9 plugs of arrester body of being convenient for and sealed cooperation, big or small full skirt cooperation root adopt circular arc transition reinforcing cavity intensity, play the explosion-proof effect and prevent that the arrester from damaging explodes the piece and splash, and the arrester is in case the break down explodes and splits, and the metallic oxide who splashes easily causes circuit ground fault together with breakable porcelain overcoat, injures other electrical equipment and passerby.
The utility model provides a separable support intelligent arrester device, contact (7) and insulating waterproof piston ring (8) are equipped with to arrester body (9) upper end, waterproof piston ring is equipped with two sealing washer (8.1), it forms by insulating material mould pressing, a structural design similar to car piston, the piston ring body is stereoplasm insulating material mould pressing, two soft rubber circle of recess installation are opened to the higher authority, play sealed effect and play insulating effect promptly, seal cavity inside and arrester body 9 with last insulating waterproof piston ring 8, prevent that the high pressure on arrester body 9 top from creeping electricity inside the cavity, because light-duty insulating cavity 2 inside is smooth surface, through insulating sealing treatment, creep electricity can be gone on from light-duty insulating cavity 2 outside, go up 7 lower extremes of contact and screw up the screw and press at insulating waterproof piston ring 8 up end, go up contact 7 and the inseparable elastic electrical dynamic contact of last contact piece 6 and guarantee stable electrical connection.
The utility model provides a separable support intelligent arrester device, open type contact ring (10) lower part is equipped with down insulating waterproof piston ring (11), seals between arrester body and the light-duty insulating cavity, prevents inside aqueous vapor and the salt stain arrester of entering.
The utility model provides a separable support type intelligence arrester device, draws forth formula installing support (1) annular hoop at light-duty compound insulation cavity (2) outer wall, has filled up the sealing washer spiro union as an organic whole between one side and the solid fixed ring of open type contact piece (12) to guarantee stable electrical connection, fill up between and have the sealing washer to play sealed effect.
A separable strut type intelligent lightning arrester device is characterized in that an open contact ring (10) is open to prevent electromagnetic induction from forming corona to cause discharge, and two holes are formed in the side face of the device and are connected with a monitoring device (16) in a threaded mode to form a whole.
The utility model provides a separable support formula intelligence arrester device, the solid fixed ring of open type contact piece (12) is the open type, prevent that electromagnetic induction from forming the corona and causing discharge, bottom distribution screw (12.1) fixed contact piece (13), the side is equipped with the screw, with draw forth formula installing support (1) spiro union, and guarantee stable electrical connection, contact piece (13) guarantee that often through-flow's the condition still has invariable power, block open type contact ring (10), do not cause to fall in arrester body 9.
The utility model provides a separable support intelligent arrester device, open type elasticity extension spring 14 handing-over department is equipped with insulating curved bar and connects and form insulating open type, prevents that electromagnetic induction from forming the corona and causing discharge, and the hoop prevents on contact piece 13 that the time is of a specified duration contact piece and the not tight electrical connection of contact ring joint are not enough.
A separable pillar type intelligent lightning arrester device, the monitoring device 16 chooses the good PC material to make, have good electrical insulating property, very high mechanical strength, explosion-proof performance, very good waterproof and stain-resistant performance, insulating engineering material to lighten the weight of the whole device greatly, and correspond to closely inosculate with the conical bottom spiro union of the body 9 of the lightning arrester; 16 shell lower parts of monitoring devices are toper direction waist and are equipped with symmetry cylinder plug operation hasp, and inside is by electronic component: CPU, temperature sensor, current transformer, antenna, solar panel, steady voltage original paper, rectification original paper, counter, resistance card, aluminium electrode, current lead, big dipper location are constituteed, lithium cell etc. are constituteed.
The monitoring device 16, CPU processes the signals transmitted from the temperature sensor and the current transformer, and transmits the signals to the background through the antenna, the temperature sensor is used for detecting the temperature of the lightning arrester body valve plate and feeding the temperature back to the CPU for processing, the current transformer detects the current in the current lead, feeds the current back to the processor, and transmits the current to the background through the antenna.
The monitoring device 16, the antenna sends CPU signal to the backstage, receives the backstage signal and feeds back to CPU, adopts six 2.5 volt solar panels to surround the daylighting and supply power for the lithium cell, three are established ties and connect in parallel, three are established ties and are the maximum voltage 7.5 volts together, because light-duty insulating cavity has shielded some solar panels, make the voltage keep about 6 volts at most, surround the design and can guarantee the charging voltage no matter in what season.
Monitoring devices 16, steady voltage original paper carry out the steady voltage to lithium cell power supply and handle, and the rectification original paper carries out the rectification to the electric current of solar energy conversion, is charging for the lithium cell through voltage stabilizing circuit.
The monitoring device 16 analyzes the current generated by lightning stroke through the current detection circuit to obtain the number of lightning stroke, the counter counts the number of lightning stroke and feeds the number back to the CPU for reminding processing, and the background records the temperature of the valve plate and the leakage current after lightning stroke.
And the monitoring device 16 is electrically connected with the aluminum electrode in a screwed mode on a bolt on the lower side of the lightning arrester body 9, and a current lead adopts an insulated annealed copper wire with the square of 0.5 to conduct parallel drainage to detect a current detection circuit.
And the upper end of a current lead of the monitoring device 16 is connected to the lower end of the aluminum electrode, passes through the aluminum sheet to bypass the resistance chip, passes through the current transformer and is connected to the lightning arrester bolt to form parallel connection.
The monitoring device 16, the operation hasp on both sides can make things convenient for insulating action bars to control, drives the arrester body and carries out the plug and change.
The utility model provides a separable support type intelligence arrester device, break away from 17 spiro union constitution integratively on monitoring devices 16, break away from ware drainage wire 17.1 around passing isolation insulating sheath 18 spiro union on metal connecting rod 20, metal connecting rod 20 passes insulating waterproof piston ring 11 electrical connection under in the downside of open type contact ring 10, after isolation insulating sheath 18 is installed, after the arrester damages the break away from the ware and drops and form the fracture, increase the insulating distance of fracture and break away from ware lead wire, play the piece that the protection break away from after bursting again and splash.
The utility model provides a separable support formula intelligence arrester device, disconnector 17 adopts the thermal explosion formula disconnector, and it is less that the thermal explosion formula disconnector is more stable receiving the environmental impact than hot melting to compare, and 9 surfaces of arrester body are smooth and need not the full skirt to reduce the cavity volume, reduce weight and reduce cost.
The specific implementation mode is as follows:
the invention relates to a separable strut type intelligent arrester device, comprising: the lead-out type mounting bracket (1), the light insulating cavity 2, the insulating shield 3, the connecting plate 4, the electricity testing grounding rod 5, the upper contact piece 6, the upper contact 7, the upper insulating waterproof piston ring 8, the lightning arrester body 9, the open type contact ring 10, the lower insulating waterproof piston ring 11, the open type contact piece fixing ring 12, the contact piece 13, the open type elastic tension spring 14, the sealing ring 15, the monitoring device 16, the disconnector 17, the isolating insulating sheath 18, the open-close type electricity testing grounding rod cover 19, the metal connecting rod 20, the busbar 21, the insulating lead 22, the wiring terminal 23 and the like.
A screw hole on the side surface of the leading-out mounting bracket 1 penetrates through the light insulating cavity 2 and is in threaded connection with the open type contact piece fixing ring 12 into a whole to ensure stable electrical connection; one end 4.1 of the connecting plate 4 is in threaded connection with the top end of the light insulating cavity 2, and the reserved screw holes 4.2 and 4.3 on the connecting plate 4 can be in threaded connection with the wiring terminal 23; then inserting the assembly of the lightning arrester body 9, the monitoring device 16 and the like into the light insulating cavity 2; the other end of the leading-out mounting bracket 1 can be mounted on a line cross arm; the head of the insulated conductor 22 is pressed on the wiring terminal 23 and is in threaded connection with the 4.2, the lower 4.3 and the busbar 21 on the connecting plate 4, and the set of separable strut-type intelligent lightning arrester device is formed by covering the insulated shield 3; the other end of insulated conductor 22 may be connected directly to the distribution line.
When the arrester is damaged, the arrester body 9 is pulled out by the operation locking buckles which are used for clamping two sides of the monitoring device 16 by the insulating operation rod, the new arrester body 9 is replaced by the operation rod to continue running, the ground wire does not need to be hung and can be directly plugged and pulled out, the arrester on the traditional line can only be replaced after power failure, or the bypass ground wire is hung and replaced to consume a large amount of manpower and material resources, the arrester can not play a role in protecting the line during the damage, certain economic loss can be caused by the power failure, and therefore live working is particularly important.
The light insulating cavity 3 is designed to have the largest topmost umbrella skirt, so that the protective effect on the umbrella skirt below can be well achieved, tests show that the first umbrella skirt can better prevent the umbrella skirt from flashover along the surface by adopting the largest umbrella skirt, and particularly, the light insulating cavity has a good effect on blocking an electric channel formed by a rain curtain, an icicle and snowing.
Separable support type intelligence arrester device arrester body does not encapsulate integratively with monitoring devices, which damages to change which does not influence each other, the arrester hangs for a long time and generates heat and can not cause the influence to monitoring devices under the operation of high pressure, the disconnector spiro union exists independently in the monitoring devices bottom, the arrester body, monitoring devices, disconnector three series connection circuit, in case there is a damage whole just to damage to report to the police, with the insulating bar whole unload which damage of getting off and change which can not cause no end waste.
The lightweight insulating cavity 3 is made of hard high-strength PC material, which can prevent birds from pecking, especially, in recent years, the environment is improved, and certain damage to the operation of the line is caused.
This design is intended: the weight is reduced and the explosion-proof performance is enhanced; the fully-insulated sealed cavity improves the insulation grade of the line; when the lightning stroke overvoltage occurs and the disconnector or the lightning arrester is damaged, the lightning stroke overvoltage occurs, the lightning stroke overvoltage is timely alarmed, the position information is displayed, and the lightning stroke overvoltage is timely early warned and early warned to replace in advance through background monitoring and analysis; the electromagnetic induction preventing structure can complete hot-line work quickly by means of the insulating operating rod under the condition that the ground does not need to be grounded by a bypass, and the assembly, disassembly, maintenance and replacement of vulnerable parts do not need climbing rods, so that the labor intensity is reduced, and the safety and the economic benefit of operation and maintenance are improved; the support column type strip bus structure can support and respectively communicate with a power supply side wire and a transformer side wire, so that a special lead wire and a special insulator for a lightning arrester are reduced; the lightning arrester body is installed and has been avoided the invasion and attack sunshine, drench, haze in light-duty insulating cavity, and the lightning arrester is more stable, and life is longer.