CN107329063B - Electric power safety tool removes test car - Google Patents
Electric power safety tool removes test car Download PDFInfo
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- CN107329063B CN107329063B CN201710682373.5A CN201710682373A CN107329063B CN 107329063 B CN107329063 B CN 107329063B CN 201710682373 A CN201710682373 A CN 201710682373A CN 107329063 B CN107329063 B CN 107329063B
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- safety tool
- ladder
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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
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
- G01R31/1245—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of line insulators or spacers, e.g. ceramic overhead line cap insulators; of insulators in HV bushings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
- B60P3/00—Vehicles adapted to transport, to carry or to comprise special loads or objects
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/007—Subject matter not provided for in other groups of this subclass by applying a load, e.g. for resistance or wear testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
Abstract
The invention provides a mobile test vehicle for electric power safety tools, which comprises a van with double seats and electric power safety tool detection test equipment in a carriage; a carriage side plate of the carriage can turn around a hinging point by 90 degrees to be horizontal, two parallel vertical guide rails are arranged on a carriage bottom plate, the guide rails extend to the tail of the carriage and are provided with limit switches, the guide rails are provided with metal brackets, rolling bearings are arranged on the metal brackets and are driven by a driving motor, and two receivable supporting legs with pulleys are arranged at one end of the tail of the metal brackets; the test transformer of the insulating rod type power frequency withstand voltage test device to which the electric power safety tool detection test equipment belongs is an inflatable alternating current series excitation test transformer, and the test transformer is arranged on the metal bracket; the invention combines the electric power safety tool detection equipment with the van, reduces the time consumption of the inspection personnel and the waiting time for certificate issuing, and avoids the risk of damaging the performance of the electric power safety tool.
Description
Technical Field
The invention relates to test equipment for conventional electric power safety tools and instruments such as insulating gloves, insulating boots, electroscope, insulating operating rod, portable short-circuit grounding wire, insulating baffle, insulating pad, safety belt, climbers, climbing plates, bamboo ladders, other various composite material ladders and the like of a transformer substation, in particular to a mobile test vehicle for the electric power safety tools and instruments.
Background
Because the detection equipment is huge, the detection equipment cannot be moved to the site to carry out preventive tests on the safety tools, more domestic detection mechanisms are used for collecting the safety tools and then transporting the safety tools back to a fixed detection place for detection, and the safety tools are transported back to a use unit after detection is completed. A detection place area of 2000m is built 2 About, about 20 people, about 10 detection safety tools and instruments are required to be put into about 800 ten thousand yuan in the early stage, the investment cost is high, the detection period is long, and the rush repair operation of the power bureau is seriously influenced.
At present, part of detection mechanisms can only provide door-on detection service for insulating safety tools, test equipment for the insulating safety tools is assembled on site by utilizing a small-sized bag-in-vehicle, and the equipment is transported and laid at 10-20m after reaching the site 2 The detection is carried out on the left and right open spaces, the on-site detection is finished only by about five to ten working days, the certificate can be delivered to a using unit, and only two to three unit tool tests can be completed every day. The individual protective equipment and the ascending tools also need to be gathered and transported back to the detection place, so that the two parties can complete the detection work only by throwing secondary personnel and vehicles. The ascending tools (ladder) belong to longer objects, the transport and the transportation are extremely not easy, trucks with the length of more than five meters are needed for loading, and the work of both sides is influenced by the limit of the traffic of part of roads. The volume and the quality of detection equipment developed by the existing detection mechanism aiming at the ladder test are quite large, the detection mechanism cannot be flexibly moved and carried, and the input power of the detection mechanism is 380V, so that the detection mechanism is inconvenient.
From the analysis, the existing detection device for the full coverage of the substation safety tool preventive test is difficult, has high requirements on equipment, personnel and vehicles, and seriously affects the detection accuracy and stability under the condition of high carrying frequency. The ascending tool cannot complete detection on site and needs to be transported back to the detection mechanism. Moreover, the detection certificate cannot be provided on site in time, and the user cannot immediately master the test parameters of the safety tool for evaluation. Therefore, with the continuous development of power grid companies, the test management of the safety tools is increasingly perfect, and the safety tools are urgently required to be changed from the traditional single field detection mode to the intelligent 100% full-coverage detection mode which is completed on site.
At present, the known technology is as chinese invention patent CN106353060a discloses a mobile laboratory for preventive test of electric power safety tools, which is composed of a van and detection test equipment, and is characterized in that: the invention relates to a movable laboratory, which is characterized in that a carriage cover is flush with a car roof after being completely opened to form a large top cover, one side of an automatic unfolding platform is movably connected with a carriage bottom plate, the other side of the automatic unfolding platform is connected with an outer platform through a special hinge, a plurality of Y-shaped supporting legs are arranged at the lower part of the joint of the automatic unfolding platform and the outer platform, a front inner platform and a front outer platform are arranged on one side of the automatic unfolding platform and the outer platform, a rear inner platform and a rear outer platform are arranged on the other side of the automatic unfolding platform and the outer platform, the automatic unfolding platform, the outer platform, the front inner platform, the rear inner platform and the rear outer platform are opened and then form a test platform with the carriage bottom plate, and test and detection equipment are arranged on the test platform. The high-voltage power quick repair and quick inspection is three times faster than the past, so that the time is saved and the working time is reduced.
However, the prior art does not solve the above-mentioned problems in the current preventive test for the safety tools of the transformer substation well. And the test voltage range is lower, and the actual condition can not be satisfied.
Disclosure of Invention
In view of the above, an object of the present invention is to provide a power safety tool movement test vehicle.
In order to solve the technical problems, the invention is realized by adopting the following technical scheme:
the electric power safety tool moving test vehicle comprises a double-row-seat van and electric power safety tool detecting test equipment arranged in a van carriage; the lower end of a carriage side plate of the carriage is hinged with the edge of a carriage bottom plate of the carriage, so that the carriage side plate can turn around a hinge point to be horizontal, a plurality of supporting rods are arranged on the outer wall surface of the carriage side plate, and the supporting rods fall to be vertical to the flattened carriage side plate after turning along with the carriage side plate and are used for supporting the carriage side plate to be horizontal; a double door is arranged on a carriage rear plate of the carriage, and a pull-out metal ladder is arranged at the bottom of the carriage at the tail end of the carriage, so that the space is saved; in addition, two parallel vertical guide rails are arranged on the carriage bottom plate, the distance between the guide rails and the two sides of the carriage is equal, the guide rails extend to the tail of the carriage and are provided with limit switches, the guide rails are provided with metal brackets, rolling bearings are arranged on the metal brackets and are driven by driving motors, two storable supporting legs with pulleys are arranged at one end of the tail of the metal brackets, the limit switches are connected with the driving motors, when the metal brackets move to the travel switch, the driving motors stop driving the metal brackets to continuously move backwards, and meanwhile, the supporting legs fall down to support the suspended metal brackets in the process of moving backwards;
the electric power safety tool detection test equipment comprises an insulating rod type power frequency voltage withstand device, an insulating glove/boot voltage withstand test device, a safety belt, a ascending type static load test device, a grounding wire direct current resistance test instrument and a ladder type static load test device, wherein a test transformer of the insulating rod type power frequency voltage withstand test device is an inflatable alternating current series excitation test transformer, the test transformer is arranged on the metal bracket, the highest test voltage of two sections of inflatable alternating current series excitation test transformers in series connection is required to reach 250kV, and the capacity is 20kVA.
Preferably, the electric power safety tool mobile test vehicle is further connected with a computer and a printer, so that rapid acquisition and printing of sample test results are realized, in addition, a cover plate type office table top is arranged in a carriage, and the electric power safety tool mobile test vehicle is attached to another fixed carriage side plate when not in use.
Preferably, the test power supply of the electric power safety tool mobile test vehicle adopts an external 220V power supply to supply power, and in addition, a 12V searchlight is arranged on the cab roof of the van, and is powered by a vehicle-mounted power supply of the cab.
Preferably, the transformer of the insulating glove/boot withstand voltage test device is a dry test transformer, the capacity of the transformer is 5kVA, the highest voltage is 50kV, the control console of the insulating glove/boot withstand voltage test device is a suitcase type, and the whole insulating glove/boot withstand voltage test device can be pushed out of a compartment after a compartment side plate is flattened for testing.
Preferably, the safety belt and ascending static load test device comprises a bearing gantry bracket, a clamp, a motor, a guide rail adjusting bracket, a tension sensor and a control unit; the speed operation is controlled by a variable frequency adjusting motor, a 5000N tension sensor is configured, a simulated person is horizontally connected with a force-bearing gantry bracket to detect a falling suspension safety belt, a simulated electric pole barrel is connected with a gantry beam to detect a climbing plate or a climbers, and when the tension is detected to reach a set parameter value, the step of keeping the load is performed.
Preferably, the ladder type static load test device comprises a fastening bracket, a clamp, a motor, a guide rail, a tension sensor and a control unit, wherein an angle of 75+/-5 degrees is formed between the ladder and the ground when the ladder is tested, the motor is arranged below the ladder, one end of the guide rail, which passes through the motor, is fixed with the bottom of the carriage through the fastening bracket, and the other end of the guide rail is tightly pressed by a rectangular weight to prevent the motor from moving after being stressed; the fixture is connected with the ladder pedal, the speed operation is controlled by the variable frequency adjusting motor, the 5000N tension sensor is configured to detect the tension of the pull rope between the motor and the fixture, and the load keeping step is carried out after the tension reaches a set parameter value.
Preferably, the metal bracket is driven to move by a motor matched with a chain or a screw rod, and the motor is arranged at the position of 20cm sinking of the metal bracket and the bottom of the carriage.
Preferably, a partition is arranged on a carriage area above the automobile cab, and a vibration-proof interlayer is arranged for storing a label printer and a computer as a carrier of an electric power safety tool detection management system.
Preferably, in order to facilitate the people to get on or off, the width of the pedal of the pull-out metal ladder is 10+/-1 cm, the total width of the pull-out metal ladder is 70+/-5 cm, and the pull-out metal ladder is provided with anti-skid patterns.
Preferably, in order to facilitate the storage of tools and not occupy the space in the carriage, the bottom of the carriage is welded with a tool box for storing tools and corresponding accessories.
Compared with the prior art, the invention has the following beneficial effects: the invention combines the electric power safety tool detection equipment and the van car together to form a movable experimental platform, overcomes the defects and shortcomings of the prior art, reduces the time consumption of the inspection personnel and the waiting time for certificate issuing, and avoids the risk of jolt to the performance of the safety tool caused by road condition problems in the back and forth transportation process of the electric power safety tool; meanwhile, the situation that tools and instruments are needed when an emergency happens can be timely dealt with, and the on-site detection of the tools and instruments is realized by building an intelligent safety tool moving test vehicle, so that the detection efficiency is improved; the mobile test vehicle can provide test items for various safety tools at any time and any place, judges the safety use state of the tools, is convenient and free to move, flexibly changes the tested object, improves the detection efficiency, reduces the transportation cost and is convenient for customers to develop work; all electric power safety tool detection test equipment is arranged in a carriage, wherein an inflatable alternating current series excitation test transformer to which the insulating rod type power frequency voltage withstand device belongs is arranged on a guide rail arranged in the carriage through a metal support, and when the electric power safety tool detection test equipment is used, the metal support pulls out the guide rail, so that the space is saved to the greatest extent.
Drawings
FIG. 1 is a schematic view of the operation state of a test vehicle according to a preferred embodiment of the present invention;
FIG. 2 is a schematic diagram of a quick entry mode of operation according to a preferred embodiment of the present invention;
fig. 3 is a schematic view showing a testing state of a ladder according to a preferred embodiment of the invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings for a clear and intuitive understanding to those skilled in the art.
Figures 1-3 are preferred embodiments of the present invention.
The electric power safety tool moving test vehicle comprises a double-row-seat van 1 and electric power safety tool detecting test equipment arranged in a van carriage 2; the lower end of a carriage side plate 21 of the carriage 2 is hinged with the edge of a carriage bottom plate 22 of the carriage 2, so that the carriage side plate 21 can turn around a hinge point to be horizontal, a plurality of supporting rods 23 are arranged on the outer wall surface of the carriage side plate 21, and the supporting rods 23 fall to be vertical to the flattened carriage side plate 21 after turning along with the carriage side plate 21 and are used for supporting the carriage side plate 21 to be horizontal; a double door is arranged on a carriage back plate of the carriage 2, and a drawing type metal ladder (not shown in the figure) is arranged at the bottom of the carriage 2 at the tail end of the carriage 2, so that the space is conveniently saved; in addition, two parallel vertical guide rails 24 are arranged on the carriage bottom plate 22, the distance between the guide rails 24 and the two sides of the carriage 2 is equal, the guide rails 24 extend to the tail of the carriage 2 and are provided with limit switches, the guide rails 24 are provided with metal brackets 3, rolling bearings are arranged on the metal brackets 3 and are driven by driving motors, two receivable supporting legs 31 with pulleys are arranged at one end of the tail of the metal brackets 3, the limit switches are connected with the driving motors, when the metal brackets 3 move to a travel switch, the driving motors stop driving the metal brackets 3 to continue to move backwards, and meanwhile, the supporting legs 31 fall down to support the suspended metal brackets 3 in the process of moving backwards the metal brackets 3;
the electric power safety tool detection test equipment comprises an insulating rod type power frequency voltage withstand device, an insulating glove/boot voltage withstand test device, a safety belt, a ascending type static load test device, a grounding wire direct current resistance test instrument and a ladder type static load test device, wherein a test transformer 4 of the insulating rod type power frequency voltage withstand test device is an inflatable alternating current series excitation test transformer, the test transformer 4 is arranged on the metal bracket 3, and the highest test voltage of two sections of inflatable alternating current series excitation test transformers in series is required to reach 250kV, and the capacity is 20kVA.
Preferably, in this embodiment, the electric power safety tool mobile test vehicle is further connected with a computer and a printer, so as to achieve rapid acquisition and printing of sample test results, and in addition, a cover-plate type office table top 5 is arranged in the carriage, and is attached to another fixed carriage side plate 21 when not in use.
Preferably, in this embodiment, the test power supply of the electric safety tool mobile test vehicle is powered by an external 220V power supply, and in addition, a 12V searchlight 61 is installed on the top surface of the cab 6 of the van 1, and is powered by the vehicle power supply of the cab 6.
Preferably, the transformer of the insulating glove/boot withstand voltage test apparatus is a dry test transformer 7, the capacity of which is 5kVA, the highest voltage is 50kV, the console 71 of the insulating glove/boot withstand voltage test apparatus is a suitcase type, and the whole insulating glove/boot withstand voltage test apparatus can be pushed out of a carriage after the carriage side plate 21 is flattened.
Preferably, the safety belt and ascending static load test device comprises a bearing gantry bracket 8, a clamp, a motor, a guide rail adjusting bracket, a tension sensor and a control unit; during the test, the speed operation is controlled by a variable frequency adjusting motor, a 5000N tension sensor is configured, a simulation person is horizontally connected with a force-bearing gantry bracket to detect a falling suspension safety belt, a simulation electric pole barrel is connected with a gantry beam to detect a climbing plate or a climber, and when the tension is detected to reach a set parameter value, the simulation person enters a load-keeping step.
Preferably, the ladder type static load test device comprises a fastening bracket, a clamp, a motor 9, a guide rail, a tension sensor and a control unit 10, wherein an angle of 75+/-5 degrees is formed between the ladder and the ground when the ladder is tested by leaning against the carriage 2, the motor 9 is arranged below the ladder 11, one end of the guide rail, which passes through the motor 9, is fixed with the bottom of the carriage 2 through the fastening bracket, and the other end of the guide rail is tightly pressed by a rectangular weight to prevent the motor 9 from moving after being stressed; the clamp is connected with the pedal of the ladder 11, the speed operation is controlled by the control unit 10 for adjusting the motor 9 in a variable frequency mode, a 5000N tension sensor is configured for detecting the tension of the pull rope between the motor 9 and the clamp, and when the tension reaches a set parameter value, the load keeping step is carried out.
Preferably, the metal bracket 3 is driven to move by a motor matched with a chain or a screw rod, and the motor is arranged at the position of 20cm sinking of the metal bracket and the bottom of the carriage.
Preferably, a partition is arranged on a compartment area above the automobile cab 6, and a vibration-proof layer is arranged on the compartment area for storing a label printer and a computer as a carrier of an electric power safety tool detection management system.
Preferably, in order to facilitate the people to get on or off, the width of the pedal of the pull-out metal ladder is 10+/-1 cm, the total width of the pull-out metal ladder is 70+/-5 cm, and the pull-out metal ladder is provided with anti-skid patterns.
Preferably, in order to facilitate the storage of tools and not occupy the space in the carriage, the bottom of the carriage is welded with a tool box 25 for storing tools and corresponding accessories.
And (3) planning a compartment space pattern: considering the problem of controlling part of traffic road sections, the van 1 adopts a double-row-seat 1.5-ton container car, and the appearance colors of the whole carriage 2 and the cab 6 are unified to be yellow. The size of the carriage 2 is 3.2 x 1.91 x 1.93m, and the actual space area of the carriage 2 is 6.1m 2 . The industrial frequency withstand voltage device, the insulating glove (boot) test device, the safety belt, the ascending static load test device, the grounding wire direct current resistance tester, the ladder static load test device and other accessories are assembled in the carriage 2, the rubber insulating pad is arranged at the bottom of the carriage 2 in an auxiliary mode, and scientific arrangement is needed for internal arrangement.
Reference is made to fig. 1 for the test platform operating conditions.
1) The unsafe state caused by the inclination of the carriage during running is avoided, the internal space is correspondingly rationalized and divided according to the different weights of the test equipment, and equipment fixing is carried out by adopting a screw, a top pin, an area limiting belt and the like, so that equipment damage caused by shaking during transportation and unsafe running are prevented;
2) The equipment needs to be reasonably arranged in the carriage to prevent mutual influence and interference, such as mechanical and electrical separation, separation of accessories and office areas and the like, a portal frame of the safety belt and ascending type static load test device is fixed at the side of the carriage, the simulation person and the bracket are abutted against the head of the carriage, and the operation of other equipment is not influenced during transportation and operation;
3) The condition that the running safety is affected by uneven stress of the carriage is prevented, and corresponding tool boxes are welded at the bottom of the carriage and used for storing tools and corresponding accessories, so that the stable state of the carriage is ensured;
4) The area above the carriage head needs to be correspondingly partitioned, and vibration-proof measures are added for storing a label printer and a computer;
5) The tail part of the carriage is provided with a hidden drawing type metal ladder, so that people can get on or off the carriage conveniently, the width of the ladder tread is at least 10+/-1 cm, the total width of the ladder is about 70+/-5 cm, and the ladder is provided with anti-skid patterns;
and quickly entering an operation mode:
1) The bottom of the vehicle is provided with 4 supporting feet 12, so that the overall stability of the vehicle is ensured and the tires are protected when the vehicle stops for detection, as shown in fig. 2;
2) The side door of the cab of the carriage is controlled by a hydraulic cylinder to be opened downwards by 90 degrees integrally, and a hydraulic system is shared with the carriage support legs. Six supporting legs on the extended edge can automatically fall down in the opening process, and the stretching platform is kept horizontally consistent with the bottom plate of the carriage. When the side door is opened, an operation platform is made of an anti-skid aluminum plate with grains, the anti-skid aluminum plate is fixedly connected with the original side door steel plate by rivets, and the insulating glove (boot) test device is directly pushed out;
3) The length of the metal bracket 3 is consistent with that of a carriage, high-strength aluminum alloy I-shaped guide rails are adopted at two sides, four ball bearings are welded on the extended edges, the design of an electric push-pull rail is realized, the moving speed of the bracket is controlled to be 3m/min, two lifting supporting legs are arranged at the tail of the bracket, and the height of the bracket is automatically adjusted along with the height of a road surface. The bracket moves until the limit switch stops working, the motor is designed at the bottom of the bracket and the carriage and is arranged at the position of 20cm sinking, the high-voltage transformer bracket and the bracket adopt a fixed mode, and a part of power line of the power frequency voltage-withstand device is connected by adopting a quick-mounting plug;
safety requirements of personnel and carriage control unit: for this item, only safety tools of 220kV voltage class and below were tested prophylactically, with the highest test voltage being 176kV. According to the requirement of the safety technical measure clause of the 6 th safety item of GB 26861-2011, the high-voltage test of the electric power safety working procedure, the safety distance is not less than 1.5 times of the minimum clearance distance for ensuring the safety of the high-voltage test. The safety distance between the high-voltage lead and the high-voltage electrified component in the test and the shielding column is larger than the test safety distance, and the safety distance for alternating current and direct current below 200kV is not smaller than 1.5m.
The safety distance between a 200kV high-voltage test transformer configured by the safety tool moving test vehicle and a control platform part of an area where personnel stand and between the 200kV high-voltage test transformer and a carriage portal frame is required to be more than 1.5m. The detachable protective net is added to the mechanical test part, the direction of the personnel is prevented from being directly faced during the sample test, and the obvious safety fence net is arranged around the vehicle for isolating the dangerous area in the operation area, so that the personnel outside the operation area can be prevented from entering the safety operation area by mistake.
Other requirements of the carriage:
1) The carriage back door adopts an integrated car door and adopts an up-down buckle locking mode, and as the car door is changed from an original single car door to a double-car door, the hinge is required to increase the strength;
2) The carriage is provided with a 25mm 2 One end of the grounding annealed copper wire reel is locked with a carriage metal part by a fixing screw, and the other end is provided with a 1m long grounding steel needle;
3) Because the detection equipment belongs to electrical equipment, two dry powder fire extinguishers are required to be configured;
4) Because the external noise easily affects test work and safety performance, a generator, a vehicle-mounted battery and an independent storage battery are not suitable to be selected for power supply, the platform detection equipment is powered by an external 220V power supply, the total power of the equipment is 5000W, and the cable is 2.5mm 2 A plurality of annealed copper wires, a power wire reel is arranged at the tail part of the carriage, a leakage protection master switch is additionally arranged, and each device is provided with an independent switch;
5) The lamps and the cross flow cooling fans are required to be correspondingly arranged in the carriage interior, and a certain number of sockets are arranged, so that the power supply of instruments and equipment is conveniently acquired, and the office table adopts a cover plate type office table top, so that the space is not occupied;
6) The edges of the opening part of the side door and the edges of the rear door of the carriage should have waterproof function, so that the equipment in the carriage is not wetted when the vehicle runs in rainy days.
Mobile portable detection device design:
(1) Insulating rod type power frequency voltage withstanding device
The insulating rod type power frequency withstand voltage test device consists of a control console, a transformer, a voltage divider and an insulating support, and the test device on the market is relatively mature, because the main aim of the test device is a safety tool, the capacity is small, the recoil voltage after breakdown of a tested product is not large, the requirement on equipment is relatively low, compared with the traditional oil immersed light test transformer, the weight is reduced by about 40%, the highest test voltage of two sections of test transformers connected in series is required to reach 250kV, and the equipment capacity is 20kVA. The measuring error of the ammeter in the control desk is +/-1%. The insulating support needs to be subjected to a vertical suspension test according to the test sample (1); (2) the ground distance of the grounding electrode is 1m; (3) the high-voltage electrode is wound by 50mm wide metal platinum; (4) the test sample interval is not less than 500mm, and the insulation support is required to be manufactured into an extensible mode.
(2) Insulating glove (boot) test device
The insulating glove (boot) test device consists of a control console, a transformer, a voltage divider and a water tank. The insulating glove and the insulating boot belong to auxiliary tools, and the preventive test voltage is lower, so that the test transformer configured by the test device is a dry test transformer, the capacity is 5kVA, the highest voltage is enough to meet the test requirement at 50kV, and the control console is suitcase-type, is convenient to move and store, and has overcurrent protection, overvoltage protection, breakdown protection and the like. In addition, according to the conventional configuration quantity of safety tools of the transformer station, each transformer station is approximately eight insulating gloves (boots), the test water tank is designed and configured to be provided with clamping place placing gloves (boots) on the basis of meeting the test, four clamping place independent water tanks are convenient to measure leakage current values and are provided with water outlets, and the water tanks are made of rubber materials and provided with anti-collision protection layers.
(3) Safety belt and ascending type static load test device
The traditional safety belt and ascending type static load test device is large in size, the weight of a control console or a power mechanism is large, the safety belt and the ascending type static load test device cannot be transported to site work, and further the traditional test device is replaced by the portable static load test device, and the portable static load test device consists of a force-bearing gantry bracket, a clamp, a power mechanism, a guide rail adjusting bracket, a tension sensor and a control unit.
(4) DC resistance tester for grounding wire
The DC resistance tester for grounding wire belongs to a small-sized testing instrument, and is mainly used for automatically testing a large number of portable short-circuit grounding wires and personal protection grounding wires of an operation unit in groups according to related regulations and automatically judging whether the portable short-circuit grounding wires and the personal protection grounding wires are qualified or not. Most of the grounding wires are three-phase short-circuit grounding wires, namely four wiring ports, part of the personal protection grounding wires are five wiring ports, the tester can automatically measure 2-end, 3-end, 4-end and 5-end groups of grounding wires, is suitable for various different conditions, can customize the cross-sectional area and the length of the grounding wires, and can rapidly calculate whether the resistance value of each meter of grounding wires meets the regulation requirement.
(5) Ladder type static load test device
The ladder static load test device and the safety belt static load test device have the same principle and consist of a fastening bracket, a clamp, a power mechanism, a guide rail, a tension sensor and a control unit. The back of the movable test platform truck is utilized to replace a beam steel pipe of a traditional testing machine, an inclined angle of 75+/-5 degrees is formed, the power mechanism is arranged below the ladder, the guide rail passes through the power mechanism to be connected with the bottom of the movable operation truck, and the other end of the guide rail is tightly pressed by 3 rectangular weights of 10kg, so that the power mechanism is prevented from moving after being stressed. The clamp is connected with the ladder pedal, the speed is controlled to operate through a variable frequency adjusting motor, a 5000N tension sensor is configured, and the step of keeping the load to the timing is performed after the set parameter value is reached. The ladder test arrangement is shown in fig. 3.
When the electric power safety tool moving test vehicle moves, each test device is placed in a carriage and needs to be balanced, wherein a test transformer with the largest weight is mounted on the metal bracket, the test device is pushed out of the carriage along with the metal bracket during test, after the carriage side plate is flattened, the dry test transformer is pushed out to perform an insulating glove/boot withstand voltage test, and each test device returns to the original position after being used up and is stored neatly.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (7)
1. The electric power safety tool moving test vehicle comprises a double-row-seat van and electric power safety tool detecting test equipment arranged in a van carriage; the device is characterized in that the lower end of a carriage side plate of the carriage is hinged with the edge of a carriage bottom plate of the carriage, so that the carriage side plate can turn around a hinge point to be horizontal, a plurality of supporting rods are arranged on the outer wall surface of the carriage side plate, and the supporting rods fall to be vertical to the flattened carriage side plate after turning along with the carriage side plate and are used for supporting the carriage side plate to be horizontal; a double door is arranged on a carriage back plate of the carriage, and a pull-out metal ladder is arranged at the bottom of the carriage at the tail end of the carriage; in addition, two parallel vertical guide rails are arranged on the carriage bottom plate, the distance between the guide rails and the two sides of the carriage is equal, the guide rails extend to the tail of the carriage and are provided with limit switches, the guide rails are provided with metal brackets, rolling bearings are arranged on the metal brackets and are driven by driving motors, two storable supporting legs with pulleys are arranged at one end of the tail of the metal brackets, the limit switches are connected with the driving motors, when the metal brackets move to the travel switch, the driving motors stop driving the metal brackets to continuously move backwards, and meanwhile, the supporting legs fall down to support the suspended metal brackets in the process of moving backwards;
the electric power safety tool detection test equipment comprises an insulating rod type power frequency voltage-withstanding device, an insulating glove/boot voltage-withstanding test device, a safety belt and ascending type static load test device, a grounding wire direct current resistance test instrument and a ladder type static load test device, wherein a test transformer of the insulating rod type power frequency voltage-withstanding device is an inflatable alternating current series excitation test transformer, the test transformer is arranged on the metal bracket, the highest test voltage of the two sections of inflatable alternating current series excitation test transformers connected in series needs to reach 250kV, and the capacity is 20kVA;
the transformer of the insulating glove/boot withstand voltage test device is a dry test transformer, the capacity of the transformer is 5kVA, the highest voltage is 50kV, the control console of the insulating glove/boot withstand voltage test device is a suitcase type, and the whole insulating glove/boot withstand voltage test device can be pushed out of a compartment after a compartment side plate is flattened for test;
the safety belt and ascending type static load test device comprises a bearing gantry bracket, a clamp, a motor, a guide rail adjusting bracket, a tension sensor and a control unit; the speed operation is controlled by a variable frequency adjusting motor, a 5000N tension sensor is configured, a simulated person is horizontally connected with a force-bearing gantry bracket to detect a falling suspension safety belt, a simulated electric pole barrel is connected with a gantry beam to detect a climbing plate or a climbers, and when the tension is detected to reach a set parameter value, the step of keeping the load is performed;
the ladder type static load test device comprises a fastening bracket, a clamp, a motor, a guide rail, a tension sensor and a control unit, wherein an angle of 75+/-5 degrees is formed between the ladder and the ground when the ladder is tested, the motor is arranged below a ladder, one end of the guide rail, which passes through the motor, is fixed with the bottom of the carriage through the fastening bracket, the other end of the guide rail is tightly pressed by a rectangular weight, and the motor is prevented from moving after being stressed; the fixture is connected with the ladder pedal, the speed operation is controlled by the variable frequency adjusting motor, the 5000N tension sensor is configured to detect the tension of the pull rope between the motor and the fixture, and the load keeping step is carried out after the tension reaches a set parameter value.
2. The electric power safety tool movement test vehicle according to claim 1, wherein the electric power safety tool movement test vehicle is further connected to a computer and a printer, and further, a cover plate type office table top is provided in the carriage, and is attached to another fixed carriage side plate when not in use.
3. The electric power safety tool mobile test vehicle according to claim 1 or 2, wherein the electric power safety tool mobile test vehicle test power supply is powered by an external 220V power supply, and in addition, a 12V searchlight is installed on the cab roof of the van, and is powered by a cab vehicle power supply.
4. The electric safety tool movement test vehicle according to claim 1, wherein the metal bracket is driven to move by a motor matched with a chain or a screw rod, and the motor is installed at a position where the metal bracket and the bottom of a carriage sink by 20 cm.
5. The electric power safety tool movement test vehicle according to claim 1, wherein a partition is provided on a compartment area above the automobile cab, and a vibration-proof barrier is provided for storing a label printer and a computer as a carrier of the electric power safety tool detection management system.
6. The electric safety tool movement test vehicle according to claim 1, wherein the width of the pedal of the pull-out type metal ladder is 10+/-1 cm, the total width of the pull-out type metal ladder is 70+/-5 cm, and the pull-out type metal ladder is provided with anti-skid patterns.
7. The electric safety tool movement test vehicle according to claim 1, wherein a tool box is welded to the bottom of the carriage for storing tools and corresponding accessories.
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| CN201710682373.5A CN107329063B (en) | 2017-08-10 | 2017-08-10 | Electric power safety tool removes test car |
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| CN201710682373.5A CN107329063B (en) | 2017-08-10 | 2017-08-10 | Electric power safety tool removes test car |
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| CN107329063B true CN107329063B (en) | 2023-04-28 |
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| CN107738606B (en) * | 2017-11-16 | 2024-04-12 | 苏州华电电气股份有限公司 | Double-section push-out type high-voltage test platform and test vehicle |
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| CN111123024A (en) * | 2020-02-13 | 2020-05-08 | 河北翔卓电力科技有限公司 | High-voltage mobile test platform |
| CN111595373A (en) * | 2020-04-01 | 2020-08-28 | 国网浙江省电力有限公司嘉兴供电公司 | Electric power safety tool detection system and detection method thereof |
| CN111624101A (en) * | 2020-05-11 | 2020-09-04 | 河北航道汽车制造有限公司 | Electric power safety tool detects car |
| CN112014783A (en) * | 2020-09-02 | 2020-12-01 | 陕西中兴祥林电子科技有限公司 | Portable preventive test vehicle for safety tools |
| CN112698166A (en) * | 2020-12-21 | 2021-04-23 | 青海电研科技有限责任公司 | Combined integrated test device |
| CN112598317B (en) * | 2020-12-30 | 2022-06-24 | 国网四川省电力公司电力科学研究院 | Real-time state evaluation method for safety tool |
| CN113022414A (en) * | 2021-03-16 | 2021-06-25 | 广东电网有限责任公司佛山供电局 | Transmission tower salvagees truck |
| CN116930644B (en) * | 2023-07-03 | 2024-03-19 | 广州市森正电子科技有限公司 | High-integration-level electrical parameter comprehensive measurement device and method thereof |
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