CN103901303A - Testing device and method for current measuring in potential shifting process of helicopter extra-high-voltage hot-line work - Google Patents
Testing device and method for current measuring in potential shifting process of helicopter extra-high-voltage hot-line work Download PDFInfo
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- CN103901303A CN103901303A CN201410118842.7A CN201410118842A CN103901303A CN 103901303 A CN103901303 A CN 103901303A CN 201410118842 A CN201410118842 A CN 201410118842A CN 103901303 A CN103901303 A CN 103901303A
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Abstract
The invention relates to a testing device and method for current measuring in the potential shifting process of helicopter extra-high-voltage hot-line work. The testing device comprises a whole helicopter work body and an insulating supporting platform. The whole helicopter work body is arranged on the insulating supporting platform, a current testing device body is further arranged on the insulating supporting platform and the current testing device body is connected with the whole helicopter work body through a wire. A metal probe bar is arranged in a dummy, the front end of the metal probe bar is close to a testing simulation wire, the rear end of the metal probe bar is connected with the input end of the current testing device body, and the output end of the current testing device body is connected with a ground data processing terminal. A distance needed by testing exists between the testing simulation wire and the metal probe bar, and the testing simulation wire is connected with a testing transformer. The testing device and method can meet the testing requirements for current measuring in the potential shifting process of helicopter extra-high-voltage hot-line work and the like.
Description
Technical field
The present invention relates to potential transfer current measurement in ultra-high/extra-high voltage hot line maintenance, refer to particularly test unit and the method for a kind of helicopter extra-high voltage electrified operation potential transfer current measurement.
Background technology
Along with building up of the electrical network of China taking extra-high voltage large capacity transmission circuit as key rack, it requires higher to power supply reliability, therefore demand more convenient, effectively overhaul means, become a kind of new technological trend and carry out helicopter hot line job on extra high voltage line.
Live working platform for helicopter working system is generally to place a platform in the middle of the sled (alighting carriage) at helicopter, and hot line job personnel are sitting in platform one side, and helicopter is from a kind of operational method of one side lateral approach work place, operating personnel place.This working system is convenient because of its work, and efficiency is high, be convenient to pilot manipulation, assessment and and maintainer between communication, be to make at present with the most use, the most rising a kind of hot line job mode.Because finally need carrying out equipotential with live wire, helicopter work entirety (comprising helicopter, job platform and staff) contacts, entering in equipotential process, meeting arc discharge between helicopter work entirety and energized conductor, the pulse current that arc discharge produces may cause damage to helicopter work entirety, so the pulse current in the reciprocity potential transfer process of palpus is measured, and then assesses its impact on helicopter work entirety.
Summary of the invention
The object of the invention is to overcome above-mentioned the deficiencies in the prior art and test unit and method that the current measurement of a kind of helicopter extra-high voltage electrified operation potential transfer is provided, the present invention can simulate the pulse current producing in actual hot line job equipotential contact process, and output after this pulse current is detected, by to the pulse current Treatment Analysis detecting, the basis of the safety assessment certification when carrying out hot line job as helicopter.
The technical scheme that realizes the object of the invention employing is: the test unit of a kind of helicopter extra-high voltage electrified operation potential transfer current measurement, comprise helicopter operation entirety, it is characterized in that: also comprise insulating supporting platform, ground data processing terminal, simulation people, metal probe rod and test simulation wire
Described helicopter operation entirety is located on described insulating supporting platform, on described insulating supporting platform, is also provided with current testing device, and described current testing device is connected by wire with described helicopter operation entirety;
Described metal probe rod is located in described simulation people, the front end of described metal probe rod is near described test simulation wire, described metal probe rod rear end is connected with the input end of described current testing device, and the output terminal of described current testing device is connected with described ground data processing terminal;
Described test simulation wire and described metal probe rod are separated by and are tested required distance, and described test simulation wire is connected with testing transformer.
In technique scheme, on described insulating supporting platform, be also provided with moving telescopic device, described simulation people is connected on described moving telescopic device; Described moving telescopic device is provided with the pulley that drives the telescopic moving of described moving telescopic device, leads to insulation stay cord on described pulley.
In technique scheme, between described metal probe rod rear end and described current testing device, be also connected with sample resistance.
The present invention also provides the test method of a kind of helicopter extra-high voltage electrified operation potential transfer current measurement, and the method comprises the following steps:
1) insulating supporting platform is set;
2) helicopter operation integral hoisting is also fixing to insulating supporting platform;
3) current measuring device is arranged on described insulating supporting platform, and by the Measure Channel of described current measuring device and helicopter operation integrated connection;
4) on described insulating supporting platform, moving telescopic device is installed, the personification of described moving telescopic device connection mode; Metal probe rod for current measurement is installed on to described simulation people hand, by close to the front end of described metal probe rod and simulation test wire, the rear end of described metal bar probe is connected with current measuring device;
5) lift test simulation wire to helicopter operation entirety parallel position, and near to apart from its 1.5 meters of, by power frequency testing transformer, test simulation wire is switched on and pressurizeed;
6) ground staff pulls pulley by insulation stay cord, and pulley drive moving telescopic device moves forward and backward, thus drive metal probe rod slowly near charged test simulation wire until reliably contact; Current testing device detects flame current waveform in approach process;
7) signal that ground data processing terminal received current proving installation detects completes last data processing and analysis.
Apparatus of the present invention are simple in structure, easy to operate, test method provided by the invention has been filled up the blank of helicopter extra-high voltage electrified operation potential transfer current measurement, can simulate the pulse current producing in actual helicopter extra-high voltage electrified operation equipotential contact process completely by the inventive method, can meet current measurement testing requirements in helicopter extra-high voltage platform method hot line job equipotential transfer process, analyze this pulse current by detection and recognize the impact on helicopter operation entirety, can be applicable to helicopter extra-high voltage platform method live-working safety test assessment.
Brief description of the drawings
Fig. 1 is the structural representation of the test unit of helicopter extra-high voltage electrified operation potential transfer of the present invention current measurement.
Fig. 2 is the process flow diagram of the test method of helicopter extra-high voltage electrified operation potential transfer of the present invention current measurement.
Number in the figure: 1-insulating supporting platform, 2-helicopter operation entirety, 3-current measuring device, 4-moving telescopic device, 5-test simulation wire, the 6-stay cord that insulate, 7-simulation people hand, 8-ground data processing terminal, 9-metal probe rod, 10-fibre optic data transmission lines.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
As shown in Figure 1, the test unit of helicopter extra-high voltage electrified operation potential transfer of the present invention current measurement, comprises insulating supporting platform 1, helicopter operation entirety 2, current testing device 3, moving telescopic device 4, test simulation wire 5, insulation stay cord 6, simulation people 7, ground data processing terminal 8, metal probe rod 9 and fibre optic data transmission lines 10.
Moving telescopic device 4 is installed on the edge of insulating supporting platform 1, simulation people 7 is arranged on moving telescopic device 4, metal probe rod 9 is located in simulation people 7, the front end of metal probe rod 9 is near test simulation wire 5, metal probe rod 9 rear ends are connected with the input end of current testing device 3 by a sample resistance, and the output terminal of current testing device 3 is connected with ground data processing terminal 8 by fibre optic data transmission lines 10.Moving telescopic device 4 is provided with the pulley (not shown) that drives these moving telescopic device 4 telescopic movings, leads to insulation stay cord 6 on pulley.
The test method that realizes the current measurement of helicopter extra-high voltage electrified operation potential transfer by above-mentioned test unit, comprises the following steps:
S100, insulating supporting platform 1 is set.On the one hand, for meeting the insulation safety of tested helicopter operation entirety under extra-high voltage (electric pressure scope is 1000kV) circuit band electrical environment, this support platform need ensure effective insulation distance be over the ground 12m and more than; On the other hand, be the low speed rotation that ensures that helicopter screw propeller can be stable on platform, insulating supporting framework inside needs oblique pull firm, and platform ground four direction need carry out balance to be fixed.
S200, helicopter operation entirety 2 is lifted to insulating supporting platform 1 fixing.Helicopter operation entirety 2(comprises helicopter body, simulation people and simulation people job platform) need stable being fixed on insulating supporting platform 1, helicopter skid need be fixed on insulating supporting platform 1 surrounding point of fixity by insulation drawstring;
S300, current measuring device 3 is arranged on insulating supporting platform 1, and Measure Channel is connected with helicopter operation entirety 1.
S400, moving telescopic device 4 is installed on insulating supporting platform 1, moving telescopic device 4 front ends are connected with simulation people 7, metal probe rod 9 for current measurement is installed on to simulation people 7, by close to the front end of described metal probe rod 9 and test simulation wire 5, the rear end of metal probe rod 9 is connected with current measuring device 3.
S500, lifting test simulation wire 5 to helicopter operation entirety parallel position, and near apart from its 1.5 meters of, by power frequency testing transformer to the 5 energising pressurizations of test simulation wire.
S600, ground staff pull pulley by insulation stay cord 6, pulley driving moving telescopic device 4 moves, with drive metal probe rod 9 slowly near charged test simulation wire 5 until reliably contact, in this process, between metal bar and live wire, start arc discharge until arc extinction, current testing device 3 detects flame current waveform in said process, and the signal of detection is transferred to ground data processing terminal by fibre optic data transmission lines.
The signal that S700, ground data processing terminal 8 received current proving installations 3 detect completes last data processing and analysis.
Claims (4)
1. a test unit for helicopter extra-high voltage electrified operation potential transfer current measurement, comprises helicopter operation entirety, it is characterized in that: also comprise insulating supporting platform, ground data processing terminal, simulation people, metal probe rod and test simulation wire,
Described helicopter operation entirety is located on described insulating supporting platform, on described insulating supporting platform, is also provided with current testing device, and described current testing device is connected by wire with described helicopter operation entirety;
Described metal probe rod is located in described simulation people, the front end of described metal probe rod is near described test simulation wire, described metal probe rod rear end is connected with the input end of described current testing device, and the output terminal of described current testing device is connected with described ground data processing terminal;
Described test simulation wire and described metal probe rod are separated by and are tested required distance, and described test simulation wire is connected with testing transformer.
2. the test unit of helicopter extra-high voltage electrified operation potential transfer current measurement according to claim 1, is characterized in that: on described insulating supporting platform, be also provided with moving telescopic device, described simulation people is connected on described moving telescopic device; Described moving telescopic device is provided with the pulley that drives the telescopic moving of described moving telescopic device, leads to insulation stay cord on described pulley.
3. according to the test unit of helicopter extra-high voltage electrified operation potential transfer current measurement described in claim 1 or 2, it is characterized in that: between described metal probe rod rear end and described current testing device, be also connected with sample resistance.
4. a test method for helicopter extra-high voltage electrified operation potential transfer current measurement, is characterized in that, comprises the following steps:
1) insulating supporting platform is set;
2) helicopter operation integral hoisting is also fixing to insulating supporting platform;
3) current measuring device is arranged on described insulating supporting platform, and by the Measure Channel of described current measuring device and helicopter operation integrated connection;
4) on described insulating supporting platform, moving telescopic device is installed, the personification of described moving telescopic device connection mode; Metal probe rod for current measurement is installed on to described simulation people hand, by close to the front end of described metal probe rod and simulation test wire, the rear end of described metal bar probe is connected with current measuring device;
5) lift test simulation wire to helicopter operation entirety parallel position, and near to apart from its 1.5 meters of, by power frequency testing transformer, test simulation wire is switched on and pressurizeed;
6) ground staff pulls pulley by insulation stay cord, and pulley drive moving telescopic device moves forward and backward, thus drive metal probe rod slowly near charged test simulation wire until reliably contact; Current testing device detects flame current waveform in approach process;
7) signal that ground data processing terminal received current proving installation detects completes last data processing and analysis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410118842.7A CN103901303A (en) | 2014-03-27 | 2014-03-27 | Testing device and method for current measuring in potential shifting process of helicopter extra-high-voltage hot-line work |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410118842.7A CN103901303A (en) | 2014-03-27 | 2014-03-27 | Testing device and method for current measuring in potential shifting process of helicopter extra-high-voltage hot-line work |
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| CN103901303A true CN103901303A (en) | 2014-07-02 |
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| CN201410118842.7A Pending CN103901303A (en) | 2014-03-27 | 2014-03-27 | Testing device and method for current measuring in potential shifting process of helicopter extra-high-voltage hot-line work |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109494619A (en) * | 2018-12-27 | 2019-03-19 | 武汉大学 | A kind of transmission line of electricity helicopter hotline maintenance equipotential transfer pulse electric current suppressing method |
| CN111610375A (en) * | 2020-05-29 | 2020-09-01 | 三峡大学 | Transmission line live working potential transfer arc electromagnetic radiation characteristic simulation test platform |
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| CN2442428Y (en) * | 2000-09-27 | 2001-08-08 | 西安凯顺电气有限责任公司 | High voltage live operation work table |
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| JP2008175681A (en) * | 2007-01-18 | 2008-07-31 | Hitachi Kokusai Electric Inc | Testing device |
| CN201808061U (en) * | 2010-08-02 | 2011-04-27 | 山东电力研究院 | Insulation system for high-voltage live-working robots |
| CN102601782A (en) * | 2012-04-01 | 2012-07-25 | 山东电力研究院 | High-voltage live working robot device |
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2014
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| CN2442428Y (en) * | 2000-09-27 | 2001-08-08 | 西安凯顺电气有限责任公司 | High voltage live operation work table |
| JP2008175681A (en) * | 2007-01-18 | 2008-07-31 | Hitachi Kokusai Electric Inc | Testing device |
| CN101227068A (en) * | 2007-12-27 | 2008-07-23 | 国网武汉高压研究院 | Equipotential access method of alternating current ultra / super high-tension line live-line work and electric potential transferring stick |
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| 刘凯等: "±800kV特高压直流输电线路的电位转移电流特性", 《高电压技术》 * |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109494619A (en) * | 2018-12-27 | 2019-03-19 | 武汉大学 | A kind of transmission line of electricity helicopter hotline maintenance equipotential transfer pulse electric current suppressing method |
| CN111610375A (en) * | 2020-05-29 | 2020-09-01 | 三峡大学 | Transmission line live working potential transfer arc electromagnetic radiation characteristic simulation test platform |
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