CN103245926A - Efficient simulation device for partial discharge modes under various faults in high-voltage switch cabinet - Google Patents
Efficient simulation device for partial discharge modes under various faults in high-voltage switch cabinet Download PDFInfo
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- CN103245926A CN103245926A CN2013101449297A CN201310144929A CN103245926A CN 103245926 A CN103245926 A CN 103245926A CN 2013101449297 A CN2013101449297 A CN 2013101449297A CN 201310144929 A CN201310144929 A CN 201310144929A CN 103245926 A CN103245926 A CN 103245926A
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- shelf depreciation
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Abstract
The invention discloses an efficient simulation device for partial discharge modes under various faults in a high-voltage switch cabinet. The efficient simulation device mainly comprises an insulation casing, a switch, a partial discharge mode generator, a high-speed power amplification unit, an impulse transmitting antenna and a chargeable battery, wherein the chargeable battery is connected with an external charger through a socket fixed on the insulation casing. The efficient simulation device for the partial discharge modes under the various faults in the high-voltage switch cabinet can simulate an electrical impulse signal generated by partial discharge and an impulse sequence signal corresponding to partial discharge modes of hole, surface, corona and the like, improve examination and evaluation methods of current various geoelectric wave measuring instruments and fill the blank in the aspects of generation of partial discharge signals and identification of defect modes. The casing can resist high voltage, and the total weight of the device is smaller than 500 g, so that the device has the characteristics of convenience in carrying and safety, and the device is particularly suitable for a power enterprise to develop work of a partial discharge study of the high-voltage switch cabinet, examination of a commercial testing instrument, training of worker skills, and the like.
Description
Technical field
The present invention relates to power equipment intellectualized technology and application thereof, specifically is the efficient analogue means of shelf depreciation pattern under the various faults in the high-tension switch cabinet.
Background technology
Switch cubicle is the visual plant of electric system, and its safe operation has significant impact to the reliability of electric system.In case break down, equipment itself is impaired, and entail dangers to operations staff's personal safety is gone back in user's interruption that has a power failure sometimes.Based on the electric power enterprise widespread use of the inner partial discharge monitoring technology of the non-intrusion type high-tension switch cabinet kind equipment of ground electrical wave measurement from countries and regions such as nineteen ninety Europe, Southeast Asia etc.By in the case surface of these equipment in short-term or long-term resettlement electric wave sensor, measure intensity and the motion frequency of outside surface ground electric wave signal, can realize switch cubicle insulation state monitoring and fault diagnosis easily, put into practice and show that effect is fine.From 2006, China's electric power enterprise was also introduced this new technology (mainly being the product of Britain EA Technology company), gets the nod rapidly, has obtained increasing application.In the last few years, China also had many producers to grasp ground electric wave monitoring technology, had developed Related product.Form the supply of domestic and international a plurality of producers in the market and put the monitoring product based on the switch cubicle office of ground electric wave technology.
Electric power enterprise is faced with some problems in carrying out related work at present has to be solved: 1) when product purchasing, in order to select and examine the performance of product, need to make the number of drawbacks model, apply high pressure cashier's office in a shop at high-voltage switch gear and excite discharge; Because the intrinsic randomness of discharge, discharge signal is difficult to accurate reproduction, can't guarantee the reliability of testing, objectivity and the fairness of influence test; 2) the new product of releasing has added functions such as shelf depreciation pattern test gradually at present, and especially hard-wired on-line monitoring product does not still have suitable wire examination method; 3) electric wave monitoring technology, as a kind of new monitoring means, the electric power worker need be in the training base and the scene undergo training, need safety, training tool efficiently.Therefore, design and make a kind of safe local discharge signal and the efficient analogue means of pattern, solve the problem that electric power enterprise exists in application practice, one of real important subject that belongs to current industry.
Summary of the invention
The efficient analogue means that the purpose of this invention is to provide multiple shelf depreciation pattern in a kind of high-tension switch cabinet, can simulate electromagnetic pulse signal that shelf depreciation produces and corresponding to the hole, along shelf depreciation mode pulse sequence signals such as face and coronas, have safe, portable, characteristics of high efficiency, thus the difficulty that the aspects such as product examination, rig-site utilization and the training of worker's associative skills that solution current power enterprise faces in the application practice of switch cubicle ground electric wave monitoring technology exist.
The technical scheme that the present invention solves the problems of the technologies described above is as follows:
1. the efficient analogue means of shelf depreciation pattern under the various faults in the high-tension switch cabinet, device is made of insulation crust, plug, switch, rechargeable battery, shelf depreciation mode generator, power amplification unit, ground plate and pulse emitting antenna.Switch, rechargeable battery, shelf depreciation mode generator, power amplification unit, ground plate are arranged in the insulation crust.Plug is installed on the insulation crust.
Each modular construction:
Described insulation crust adopts epoxy resin material, outer casing thickness 2mm, long 80mm, wide 80mm and high 100mm.
Described plug is banana plug.
Described rechargeable battery adopts lithium battery.
Described shelf depreciation mode generator is changed chip (DAC) and is formed by microprocessor unit, electronic memory, field programmable gate array (FPGA), high-speed digital-analog dress.Centered by microprocessor unit, connect electronic memory and field programmable gate array (FPGA).Field programmable gate array (FPGA) changes chip (DAC) with the high-speed digital-analog dress and links to each other.The high-speed digital-analog dress changes chip (DAC) and is connected to the high-speed power amplifying unit.
Described high-speed power amplifying unit is made of the high speed operation amplifier integrated circuit, selects high speed operation amplifier integrated circuit OPA627 for use.
Described pulse emitting antenna is made of pcb board and the ground terminal of input terminal, radius 60mm; Pcb board one side is input terminal and ground terminal, and input terminal is communicated with by the annular copper cash with ground terminal, has formed a magnetic-dipole antenna, annular radii 50mm; Input terminal is connected with power amplification unit, and ground terminal is connected with ground plate.
Described ground plate is middle porose sheet metal.
The annexation of each parts:
Described pulse emitting antenna passes insulation crust and ground plate is connected on the power amplification unit; The input terminal of pulse emitting antenna is connected with an end of power amplification unit; The other end of power amplification unit is connected with an end of shelf depreciation mode generator; The other end of shelf depreciation mode generator is connected with rechargeable battery; Rechargeable battery is connected with switch; Switch connects by the plug on the insulation crust and external charger.
2. being applied to of the efficient analogue means of shelf depreciation pattern under the various faults in the high-tension switch cabinet:
1) performance of examination commercial product;
2) application expertise of trainer building site electric wave monitoring technology in the rig-site utilization.
The present invention has following advantage:
1, the shell of analogue means has the dielectric level of 10kV, so the monitoring personnel can operate this instrument as safe as a housely;
2, local discharge signal and shelf depreciation pattern can be stored, and guarantee accuracy and the repeatability of local discharge signal and pattern.
3, local discharge signal and shelf depreciation pattern also can be upgraded as required at any time, guarantee the diversity of local discharge signal and pattern.
When 4, use is of the present invention, operating personnel only need analogue means is placed on switch cubicle inside, power-on, device is namely worked, launch the electromagnetic wave with local discharge characteristic, can be used to examine ground electric wave sensor and the performance of monitoring instrument or pertinent instruments operator's the use technical ability of switch cubicle outside.Improved efficient and the effect of electric power enterprise in aspect work such as product test, technical ability examinations so, greatly.
Description of drawings
Fig. 1 is the composition synoptic diagram of the efficient analogue means of shelf depreciation pattern under the various faults in the high-tension switch cabinet of the present invention.
Fig. 2 be in the high-tension switch cabinet of the present invention under the various faults shelf depreciation mode generator of the efficient analogue means of shelf depreciation pattern form synoptic diagram.
Fig. 3 is the pulse emitting antenna basic structure synoptic diagram of the efficient analogue means of shelf depreciation pattern under the various faults in the high-tension switch cabinet of the present invention.
Fig. 4 is the efficient analogue means of shelf depreciation pattern under the various faults in the high-tension switch cabinet of the present invention, is used for the commercial high pressure of examination and closes the performance of cabinet partial discharge monitoring instrument and the synoptic diagram that the training employee carries out ground electric wave test.
Among the above figure, insulation crust 11, plug 12, switch 13, rechargeable battery 14, shelf depreciation mode generator 15, high-speed power amplifying unit 16, ground plate 17, pulse emitting antenna 18, microprocessor unit 21, electronic memory 22, field programmable gate array (FPGA) 23, the high-speed digital-analog dress changes chip (DAC) 24, input terminal 31, ground terminal 32, switch cubicle 41, analogue means 42, ground electric wave sensor 1, ground electric wave sensor 2 44, signal cable 1, signal cable 2 46, input oscillograph 47.
Embodiment
Above-mentioned only is the general introduction of technical solution of the present invention, and for can clearer understanding technological means of the present invention, the present invention is described in further detail below in conjunction with accompanying drawing and embodiment.
In the high-tension switch cabinet under the various faults composition of the efficient analogue means of shelf depreciation pattern as shown in Figure 1, in the high-tension switch cabinet under the various faults the efficient analogue means of shelf depreciation pattern constituted by insulation crust 11, plug 12, switch 13, rechargeable battery 14, shelf depreciation mode generator 15, high-speed power amplifying unit 16, ground plate 17 and pulse emitting antenna 18.Switch 13, rechargeable battery 14, shelf depreciation mode generator 15, power amplification unit 16, ground plate 17 are arranged in the insulation crust 11.Plug 12 is installed on the insulation crust 11.
Each modular construction:
Described insulation crust 11 adopts epoxy resin material, outer casing thickness 2mm, long 80mm, wide 80mm and high 100mm.
Described plug 12 is banana plug.
Described rechargeable battery 14 adopts lithium battery.
Described shelf depreciation mode generator 15 structures as shown in Figure 2,
Change chip (DAC) 24 and form by microprocessor unit 21, electronic memory 22, field programmable gate array (FPGA) 23, high-speed digital-analog dress.Microprocessor unit 21 is selected the OMAP34X0 of the Texas Instrument (TI) of ARM V7 for use, and electronic memory 22 is selected WS25S022A for use, and field programmable gate array (FPGA) 23 selects for use Altera Xilinx, high-speed digital-analog dress to change chip (DAC) 24 optional AD768.Centered by microprocessor unit 21, connect electronic memory 22 and field programmable gate array (FPGA) 23.Field programmable gate array (FPGA) 23 changes chip (DAC) 24 with the high-speed digital-analog dress and links to each other.The high-speed digital-analog dress changes chip (DAC) 24 and is connected to high-speed power amplifying unit 16.
Described high-speed power amplifying unit 16 is made of the high speed operation amplifier integrated circuit, selects high speed operation amplifier integrated circuit OPA627 for use.
Described pulse emitting antenna 18 is made of pcb board and the ground terminal 32 of input terminal 31, radius 60mm, and function is to finish and being electrically connected of Unit 16; Pcb board one side is input terminal 31 and ground terminal 32, and input terminal 31 is communicated with by the annular copper cash with ground terminal 32, has formed a magnetic-dipole antenna, annular radii 50mm; Wherein input terminal 31 is connected with power amplification unit 16, and ground terminal 32 is connected with ground plate 17.
Described ground plate 17 is middle porose sheet metals.Adopt that 1mm is thick, the copper coin of radius 20mm or aluminium sheet realize.Middle hole diameter 5mm.
The annexation of each parts:
Described pulse emitting antenna 18 passes insulation crust 11 and ground plate 17 is connected on the power amplification unit 16; The input terminal 31 of pulse emitting antenna 18 is connected with an end of power amplification unit 16; The other end of power amplification unit 16 is connected with an end of shelf depreciation mode generator 15; The other end of shelf depreciation mode generator 15 is connected with rechargeable battery 14; Rechargeable battery 14 is connected with switch 13; Switch 13 connects by the plug 12 on the insulation crust and external charger.
Wherein, insulation crust 11 can adopt epoxy resin insulation material, and thickness is less than 3mm, greater than 1mm.Switch 13 can be selected common toggle switch for use.The lithium battery of selecting voltage 5V, capacity 2100mAh for use of rechargeable battery 14.
When using in the high-tension switch cabinet of the present invention the efficient analogue means of shelf depreciation pattern under the various faults, can be applicable to following two aspects, with reference to figure 4, efficient analogue means 42 of the present invention is placed on high-tension switch cabinet 41 inside.
1) performance of examination commercial product
The high survey instrument of buying cost performance is a daily job of chief technology officer department of Utilities Electric Co..Uses the present invention, can reach this purpose in safe ready ground, and owing to overcome the randomness of true shelf depreciation, what the examination different product was to use is duplicate test signal that the properties of product of different businessmans can be estimated objectively.For instance, as Fig. 4,2 ground electric wave sensors 43,44 are close to the outside surface of switch cubicle 41 respectively, the electromagnetic wave of analogue means 42 emissions is coupled to 2 ground electric wave sensors, through 2 signal cables 45,46 input oscillographs 47, observe waveform, the amplitude of the signal of the commercial monitoring system of the switch cubicle same locational difference in surface, the mistiming of signal etc. can know whether the performance of sensor stable, consistent, the sensitivity temporal resolution etc. of height, positioning system relatively.For hard-wired on-line monitoring product, the diagnosis recognition capability of its fault mode obtains check immediately.
Benly be, the shelf depreciation data that are kept in the electronic memory 22 are the data of getting off by true shelf depreciation system log (SYSLOG), the database that these data can be set up from the size by adjusting defective etc., thus avoid the unicity of test pattern.
2) application expertise of trainer building site electric wave monitoring technology in the rig-site utilization
The employee of Utilities Electric Co. is two ground electric wave sensors 43,44 mistiming between the passage when switch cubicle surface movement can be experienced the ground electric wave signal along with the variation of distance, sensor different spacing, reaches the using method that the training employee grasps relevant monitoring instrument safely and fast, the purpose that improves monitoring technical ability.
As seen, the invention solves three problems that present electric power enterprise faces in the popularization of carrying out the ground electric wave technology: 1) just, network access testing problem efficiently in screening, purchase commercial product process; 2) the examination problem of hard-wired on-line monitoring product office mode playback recognition function; Essential safe, training method efficiently when 3) the electric power worker grasps correlation technique.
The above only is preferred embodiment of the present invention, is not the present invention is done any pro forma restriction, for example obviously should invent examination and the technical training work that also can be used for the ultrahigh frequency monitoring product.Those skilled in the art utilize the technology contents of above-mentioned announcement to make a little simple modification, equivalent variations or modification, all drop in protection scope of the present invention.
Claims (2)
1. the efficient analogue means of shelf depreciation pattern under the various faults in the high-tension switch cabinet, it is characterized in that, device is made of insulation crust, plug, switch, rechargeable battery, shelf depreciation mode generator, power amplification unit, ground plate and pulse emitting antenna, and switch, rechargeable battery, shelf depreciation mode generator, power amplification unit, ground plate are arranged in the insulation crust; Plug is installed on the insulation crust;
Each modular construction:
Described insulation crust adopts epoxy resin material, outer casing thickness 2mm, long 80mm, wide 80mm and high 100mm;
Described plug is banana plug;
Described rechargeable battery adopts lithium battery;
Described shelf depreciation mode generator is changed chip DAC and is formed by microprocessor unit, electronic memory, on-site programmable gate array FPGA, high-speed digital-analog dress; Centered by microprocessor unit, connect electronic memory and on-site programmable gate array FPGA; On-site programmable gate array FPGA changes chip DAC with the high-speed digital-analog dress and links to each other; The high-speed digital-analog dress changes chip DAC and is connected to the high-speed power amplifying unit;
Described high-speed power amplifying unit is made of the high speed operation amplifier integrated circuit, selects high speed operation amplifier integrated circuit OPA627 for use;
Described pulse emitting antenna is made of pcb board and the ground terminal of input terminal, radius 60mm: pcb board one side is input terminal and ground terminal, input terminal is communicated with by the annular copper cash with ground terminal, formed a magnetic-dipole antenna, annular radii 50mm; Input terminal is connected with power amplification unit, and ground terminal is connected with ground plate;
Described ground plate is middle porose sheet metal;
The annexation of each parts:
Described pulse emitting antenna passes insulation crust and ground plate is connected on the power amplification unit; The input terminal of pulse emitting antenna is connected with an end of power amplification unit; The other end of power amplification unit is connected with an end of shelf depreciation mode generator; The other end of shelf depreciation mode generator is connected with rechargeable battery; Rechargeable battery is connected with switch; Switch connects by the plug on the insulation crust and external charger.
2. the application of the efficient analogue means of shelf depreciation pattern under the various faults in the high-tension switch cabinet as claimed in claim 1 is characterized in that, is applied to:
1) performance of examination commercial product;
2) application expertise of trainer building site electric wave monitoring technology in the rig-site utilization.
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103472422A (en) * | 2013-08-20 | 2013-12-25 | 国家电网公司 | Checking method of geoelectrical wave detecting instrument |
| CN104375110A (en) * | 2014-11-03 | 2015-02-25 | 深圳供电局有限公司 | Ground electric wave sensor performance test system |
| CN104464429A (en) * | 2014-12-11 | 2015-03-25 | 国家电网公司 | KYN switch cabinet maintenance somatosensory equipment and using method thereof |
| CN104635124A (en) * | 2015-01-22 | 2015-05-20 | 深圳供电局有限公司 | Simulation device for partial discharge mode |
| CN105044640A (en) * | 2015-06-27 | 2015-11-11 | 云南电网有限责任公司电力科学研究院 | Integrated controllable partial discharge instrument pulse signal generator |
| CN106855607A (en) * | 2017-01-04 | 2017-06-16 | 广西电网有限责任公司电力科学研究院 | A kind of packaged type Partial Discharge Sources analogue means |
| CN107390154A (en) * | 2017-07-26 | 2017-11-24 | 国网上海市电力公司 | System and method is verified in the sensitivity of partial discharge of transformer superfrequency detection means |
| CN107490752A (en) * | 2017-09-15 | 2017-12-19 | 中国电力科学研究院 | A kind of system and method for simulating ultrahigh frequency partial discharge signal |
| CN109031167A (en) * | 2018-08-16 | 2018-12-18 | 广东电网有限责任公司 | Magnetic field detection component, switchgear and distribution system |
| CN114002982A (en) * | 2021-10-29 | 2022-02-01 | 广东电网有限责任公司 | Multi-pulse oscillation wave generating device and method |
| CN115792762A (en) * | 2022-11-16 | 2023-03-14 | 国能大渡河瀑布沟发电有限公司 | Partial discharge signal reconstruction method and device for hydraulic generator |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103472422A (en) * | 2013-08-20 | 2013-12-25 | 国家电网公司 | Checking method of geoelectrical wave detecting instrument |
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| CN104375110B (en) * | 2014-11-03 | 2017-11-07 | 深圳供电局有限公司 | Ground electric wave sensor performance test system |
| CN104464429A (en) * | 2014-12-11 | 2015-03-25 | 国家电网公司 | KYN switch cabinet maintenance somatosensory equipment and using method thereof |
| CN104635124A (en) * | 2015-01-22 | 2015-05-20 | 深圳供电局有限公司 | Simulation device for partial discharge mode |
| CN105044640B (en) * | 2015-06-27 | 2018-11-02 | 云南电网有限责任公司电力科学研究院 | A kind of integrated form controllable local discharge instrument pulse signal generator |
| CN105044640A (en) * | 2015-06-27 | 2015-11-11 | 云南电网有限责任公司电力科学研究院 | Integrated controllable partial discharge instrument pulse signal generator |
| CN106855607A (en) * | 2017-01-04 | 2017-06-16 | 广西电网有限责任公司电力科学研究院 | A kind of packaged type Partial Discharge Sources analogue means |
| CN107390154A (en) * | 2017-07-26 | 2017-11-24 | 国网上海市电力公司 | System and method is verified in the sensitivity of partial discharge of transformer superfrequency detection means |
| CN107490752A (en) * | 2017-09-15 | 2017-12-19 | 中国电力科学研究院 | A kind of system and method for simulating ultrahigh frequency partial discharge signal |
| CN107490752B (en) * | 2017-09-15 | 2020-08-11 | 中国电力科学研究院 | System and method for simulating ultrahigh frequency partial discharge signal |
| CN109031167A (en) * | 2018-08-16 | 2018-12-18 | 广东电网有限责任公司 | Magnetic field detection component, switchgear and distribution system |
| CN109031167B (en) * | 2018-08-16 | 2024-03-19 | 广东电网有限责任公司 | Magnetic field detection assembly, switch cabinet and power distribution system |
| CN114002982A (en) * | 2021-10-29 | 2022-02-01 | 广东电网有限责任公司 | Multi-pulse oscillation wave generating device and method |
| CN114002982B (en) * | 2021-10-29 | 2024-04-19 | 广东电网有限责任公司 | Multi-pulse oscillation wave generating device and method |
| CN115792762A (en) * | 2022-11-16 | 2023-03-14 | 国能大渡河瀑布沟发电有限公司 | Partial discharge signal reconstruction method and device for hydraulic generator |
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