CN101294999B - AC/DC arrester team-work tester - Google Patents
AC/DC arrester team-work tester Download PDFInfo
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- CN101294999B CN101294999B CN2008101145286A CN200810114528A CN101294999B CN 101294999 B CN101294999 B CN 101294999B CN 2008101145286 A CN2008101145286 A CN 2008101145286A CN 200810114528 A CN200810114528 A CN 200810114528A CN 101294999 B CN101294999 B CN 101294999B
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- 238000012360 testing method Methods 0.000 claims description 50
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- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
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- 101100190617 Arabidopsis thaliana PLC2 gene Proteins 0.000 description 2
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- 101100093534 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) RPS1B gene Proteins 0.000 description 2
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Abstract
The invention discloses an AC/DC lightning arrester combined action tester which includes a power frequency power supply, a back-to-back analog device, a multiple waveform generator and an impact current generator, wherein, ground terminals of the power frequency power supply, the back-to-back analog device, the multiple waveform generator and the impact current generator are grounded in parallel; power supply ends of the power frequency power supply, the back-to-back analog device, the multiple waveform generator and the impact current generator are switched and connected in parallel by a switch; a voltage divider and a specimen parallelly connected with the voltage divider, wherein, the voltage divider and the specimen are parallelly connected among the parallel connection ends and the ground terminals of the power frequency power supply, the back-to-back analog device, the multiple waveform generator and the impact current generator which are switched by the switch; an oscillographwhich collects output signals output by output ends of of the power frequency power supply, the back-to-back analog device, the multiple waveform generator, the impact current generator and the voltage divider, and transmits the collected signals to a combined action measuring and controlling system.
Description
Technical field
The present invention relates to a kind of lightning arrester test unit, particularly about a kind of AC/DC arrester team-work tester.
Background technology
Teamwork test (operating duty cycle test and temporary overvoltage resistance test) is the key test of checking lightning arrester thermal stability and tolerance temporary overvoltage ability, is related to the security and the reliability of lightning arrester operation.A large amount of work has been done in the teamwork test that exchanges lightning arrester both at home and abroad at present, had GB and IEC standard to can be used as test basis.For the direct current lightning arrester,, also there are not unified GB or international standard at present because it bears the complicacy and the diversity of working voltage and failure condition.The teamwork testing equipment of domestic and international AC/DC arrester is at present just specially at exchanging lightning arrester or special teamwork testing equipment at the direct current lightning arrester, also both not can be used for exchanging lightning arrester, can be used for the combined test apparatus of direct current lightning arrester again.And the teamwork testing equipment function of present direct current lightning arrester is single relatively, and place capacity is little, parameter is low, is difficult to effectively carry out the teamwork experimental study of direct current lightning arrester.Therefore need to research and develop a kind of lightning arrester that can be used for exchanging, can be used for the device of the multiple waveform teamwork test of direct current lightning arrester again.
Summary of the invention
At the problems referred to above, a kind of test of the AC and DC arrester team-work under the multiple waveform condition that provides is provided, integral device is had carry out the AC/DC arrester team-work tester of compbined test ability.
For achieving the above object, the present invention takes following technical scheme: a kind of AC/DC arrester team-work tester, it is characterized in that it comprises: a power frequency supply, one analogue means back-to-back, one Waveform Generator, one impulse current generator, described power frequency supply, analogue means back-to-back, the earth terminal of Waveform Generator and impulse current generator ground connection in parallel, described power frequency supply, analogue means back-to-back, the power end of Waveform Generator and impulse current generator is connected by the switch in parallel switching, one voltage divider, one test product that is connected in parallel with voltage divider, described voltage divider and described test product are connected in parallel on the described power frequency supply that switches by switch, analogue means back-to-back, Waveform Generator, between the parallel connected end of impulse current generator and the earth terminal of device; Oscillograph, gather the output signal of described power frequency supply, described analogue means back-to-back, described Waveform Generator, described impulse current generator and described voltage divider output terminal, and the signal of being gathered is transferred to computing machine and teamwork control system.
One end of described power frequency supply is serially connected with a single-pole switch, one changeover contact of the one end serial connection one pole switch of described analogue means back-to-back, one end of described Waveform Generator is connected in series another changeover contact of described one pole switch, and described impulse current generator is connected in series a discharge switch.
Described oscillograph is connected with described AC power, the current sensor that is provided with on the power end of analogue means, Waveform Generator, impulse current generator back-to-back respectively, and described oscillograph also is connected with the output terminal of described voltage divider.
Described computing machine and teamwork control system comprise computing machine and the Programmable Logic Controller more than, a wherein described computing machine and described oscillograph communication, store the various Wave datas that described oscillograph receives, all the other each described computing machines are kept in communication with described Programmable Logic Controller respectively, each described computer settings parameter is sent to each described Programmable Logic Controller, by the described power frequency supply of each described Controlled by Programmable Controller, analogue means back-to-back, the switching action of Waveform Generator and impulse current generator, the Programmable Logic Controller of wherein controlling described impulse current generator is to the described power frequency supply of control, the Programmable Logic Controller of analogue means and Waveform Generator sends actuating signal back-to-back, carries out teamwork.
Utilize described analogue means back-to-back transformer and converter valve realize exchanging-conversion of AC/DC, simulate the continuous running voltage signal under the various states.
Described Waveform Generator output current waveform in full-wave rectifier, dc waveform, half wave rectification wave or power frequency waveform.
The present invention is owing to take above technical scheme, it has the following advantages: 1, the present invention is owing to adopted Waveform Generator and analogue means back-to-back, comprehensive simulation the AC and DC lightning arrester complicacy and the diversity of bearing working voltage, AC and DC arrester team-work test under the multiple waveform condition can be provided, integral device be had carry out the ability of compbined test.2, the present invention is by waveform acquisition system (oscillograph and computing machine), electric current in the test product and the multiple voltage waveform that bears are imported in the computing machine, calculate data such as trial target power consumption by mathematical analysis, can carry out the synthetic study of the teamwork test method of AC/DC arrester.3, the present invention is owing to adopted power frequency supply, and its capacity is big, and it is single relatively to have overcome in the prior art teamwork testing equipment function of direct current lightning arrester, and the shortcoming that the place capacity small parameter is low can effectively be carried out the teamwork experimental study of direct current lightning arrester.4, the present invention provides test platform for proposing direct current arrester team-work test unified standard, and the formulation that test is sought unity of standard to the direct current arrester team-work has outstanding meaning.
Description of drawings
Fig. 1 is a module frame chart of the present invention
Fig. 2 is the synoptic diagram of computing machine of the present invention and teamwork control system
Fig. 3 is a Waveform Generator circuit diagram of the present invention
Fig. 4 is the present invention's analogue means synoptic diagram back-to-back
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in detail.
As shown in Figure 1, the present invention includes: a power frequency supply 1, one analogue means 2 back-to-back, one Waveform Generator 3, the power frequency supply 1 and the earth terminal ground connection in parallel of analogue means 2 and Waveform Generator 3 back-to-back, power end at power frequency supply 1 is serially connected with a single-pole switch ZK1, and the power end of power frequency supply 1 is provided with current sensor CT1, be serially connected with the changeover contact of an one pole switch ZK2 at the power end of analogue means 2 back-to-back, and its power end is provided with current sensor CT2, be serially connected with another changeover contact of an one pole switch ZK2 at the power end of Waveform Generator 3, also be provided with current sensor CT3 on its power end, the common port of one pole switch ZK2 is connected in series a single-pole switch ZK3.One voltage divider 4 and a test product 5 are connected in parallel between the earth terminal of the parallel connected end of single-pole switch ZK1, ZK3 and device.One impulse current generator 6, the earth terminal of one end connection device, the other end and discharge switch 7 are connected in series, and the other end of discharge switch 7 connects the parallel connected end of voltage divider 4 and test product 5, and the line of discharge switch 7 and test product 5 is provided with current sensor CT4.Oscillograph 8, the power frequency supply 1 that its received current sensor CT1, CT2, CT3, CT4 gather, the output signal of analogue means 2, Waveform Generator 3 and impulse current generator 6 and the output signal of voltage divider 4 back-to-back, and the signal of being gathered is transferred to computing machine and teamwork control system 9.In practical operation, two oscillographs of operated by rotary motion are wherein gathered Waveform Generator 3 and the waveform of analogue means 2 generations back-to-back and the waveform of power-frequency voltage and electric current for one, and another gathers dash current and residual voltage waveform.
As shown in Figure 2, computing machine and teamwork control system 9 comprise three computing machines and two Programmable Logic Controllers (PLC), two oscillographs 8 carry out communication by wherein computing machine 91 of netting twine and computing machine and teamwork control system 9, and the various Wave datas that two oscillographs 8 are received are stored in wherein.In addition two computing machines are used for mutual with the operator, and the operator comes the working method and the parameter of setting device with computing machine.Be used to set power frequency supply 1, the working method that is adopted and the delay time of analogue means 2 and Waveform Generator 3 back-to-back as computing machine 92, the mode of operation of setting passes to connected PLC1 by optical fiber, PLC1 is according to the setting of computing machine 92, control power frequency supply 1, the selection and the switching of analogue means 2 and Waveform Generator 3 back-to-back after obtaining discharge signal.The 3rd 93 in computing machine is used for setting parameters such as the amplitude, charging voltage of dash current, and be transmitted through the fiber to PLC2, control discharging and recharging of impulse current generator 6 by PLC2 according to setup parameter, send discharge signal by auxiliary reclay to PLC1 simultaneously, make PLC1 after receiving discharge signal according to the delay duration control power frequency supply of setting 1, the switching operation of analogue means 2 and Waveform Generator 3 back-to-back, realize teamwork.
When exchanging the arrester team-work test, switch ZK2 selects Waveform Generator 3 (it selects alternating voltage output), impulse current generator 6 applies dash current by 7 pairs of test products 5 of discharge switch, (＜100ms) Closing Switch ZK1 in official hour, the voltage of AC power 1 of regulation is added to that (time range that the certain hour value comprises is that 0.1s is to 20min after the certain hour value on the test product 5, more typical time value is 0.1s, 0.2s, 1s, 10s), switch ZK1 disconnects, with switch ZK3 closure, the alternating voltage that Waveform Generator 3 produces is applied to off-test behind the 30min on the test product in the short as far as possible time.
During the teamwork test, the time that setting should comprise is that 0.1s is to 20min.For using isolated neutral system or the resonant earthed system of removing the earth fault device not having, time range should expand 24h to.
When carrying out test of direct current arrester team-work and investigation test, ZK2 selects analogue means 2 or Waveform Generator 3 back-to-back, impulse current generator 6 applies dash current by 7 pairs of test products 5 of discharge switch, (＜100ms) closed ZK3 in official hour, analogue means 2 or the Waveform Generator 3 specific waveforms voltage of drawing is added on the test product 5 that ZK3 disconnects off-test behind the certain hour back-to-back.
As shown in Figure 3, the principle of Waveform Generator 3 of the present invention is: when this test unit is checked the direct current lightning arrester or exchanged the teamwork characteristic of lightning arrester, need different waveforms to carry out.AC is an alternating-current voltage source, and tested sample 5 is connected between output point O1, the O2 of Waveform Generator 3, passes through K switch
1, K
2, K
3, K
4Folding respectively with rectification silicon stack D
1, D
2, D
3, D
4With filter capacitor C place in circuit, control output waveform between output point O1, O2 with this.Its control mode is as follows:
Work as K switch
1Closure, K
2, K
3, K
4During disconnection, output point O1, the O2 of Waveform Generator 3 export current waveform in full-wave rectifier, during the power frequency positive half-wave, and rectification silicon stack D
1, D
4Place in circuit, direction of current: AC → D
1→ tested sample → D
4→ AC; When power frequency is born half-wave, D
2, D
3Place in circuit, direction of current: AC → D
2→ tested sample → D
3→ AC.
Work as K switch
1, K
4Closure, K
2, K
3During disconnection, output point O1, the O2 of Waveform Generator 3 export dc waveform, and the same full-wave rectification of rectification silicon stack duty just inserts filter capacitor C at circuit output end.
Work as K switch
2Closure, K
1, K
3, K
4During disconnection, output point O1, the O2 of Waveform Generator 3 export half wave rectification wave, during the power frequency positive half-wave, have only D
1Place in circuit, direction of current: AC → D
1→ tested sample → AC.
Work as K switch
2, K
3Closure, K
1, K
4Disconnect, output point O1, the O2 output power frequency waveform of Waveform Generator 3, rectification silicon stack and filter capacitor are not worked.
As shown in Figure 4, analogue means 2 can obtain from prior art back-to-back, according to the direct current transportation principle, utilize transformer and converter valve to realize exchanging-conversion of AC/DC, it is output 9 road signals at most, and when carrying out the teamwork test, have only 1 road signal to be applied on the test product this moment.Wherein: A, L point is drawn the continuous running voltage signal of analog valve lightning arrester; B, K point is drawn the continuous running voltage signal of analog DC mid point bus lightning arrester; D, F point is drawn the continuous running voltage signal of simulation transverter DC bus arrester; C, G point is drawn stack commutation angle waveform signal on the power frequency waveform; The E point is drawn the continuous running voltage signal of analog DC bus lightning arrester.
The present invention adopts Waveform Generator, when the teamwork attribute testing of check direct current lightning arrester or interchange lightning arrester, according to the exportable current waveform in full-wave rectifier of test needs, dc waveform, half wave rectification wave or power frequency waveform, can carry out the AC and DC arrester team-work test under the multiple waveform condition.
The present invention adopts analogue means back-to-back, complicacy and the diversity that when carrying out the arrester team-work test, can bear working voltage according to the direct current lightning arrester, utilize transformer and converter valve to realize exchanging-conversion of AC/DC, continuous running voltage signal under the simulation various states can effectively be carried out the research of the teamwork test of direct current lightning arrester.
Claims (6)
1. AC/DC arrester team-work tester, it is characterized in that it comprises: a power frequency supply, one analogue means back-to-back, one Waveform Generator, one impulse current generator, described power frequency supply, analogue means back-to-back, the earth terminal of Waveform Generator and impulse current generator ground connection in parallel, described power frequency supply, analogue means back-to-back, the power end of Waveform Generator and impulse current generator is connected by the switch in parallel switching, one voltage divider, one test product that is connected in parallel with voltage divider, described voltage divider and described test product are connected in parallel on the described power frequency supply that switches by switch, analogue means back-to-back, Waveform Generator, between the parallel connected end of impulse current generator and the earth terminal of device; Oscillograph, gather the output signal of described power frequency supply, described analogue means back-to-back, described Waveform Generator, described impulse current generator and described voltage divider output terminal, and the signal of being gathered is transferred to computing machine and teamwork control system.
2. a kind of AC/DC arrester team-work tester as claimed in claim 1, it is characterized in that: an end of described power frequency supply is serially connected with a single-pole switch, one changeover contact of the one end serial connection one pole switch of described analogue means back-to-back, one end of described Waveform Generator is connected in series another changeover contact of described one pole switch, and described impulse current generator is connected in series a discharge switch.
3. a kind of AC/DC arrester team-work tester as claimed in claim 1, it is characterized in that: described oscillograph is connected with described power frequency supply, the current sensor that is provided with on the power end of analogue means, Waveform Generator, impulse current generator back-to-back respectively, and described oscillograph also is connected with the output terminal of described voltage divider.
4. a kind of AC/DC arrester team-work tester as claimed in claim 1, it is characterized in that: described computing machine and teamwork control system comprise computing machine and the Programmable Logic Controller more than, a wherein described computing machine and described oscillograph communication, store the various Wave datas that described oscillograph receives, all the other each described computing machines are kept in communication with described Programmable Logic Controller respectively, each described computer settings parameter is sent to each described Programmable Logic Controller, by the described power frequency supply of each described Controlled by Programmable Controller, analogue means back-to-back, the switching action of Waveform Generator and impulse current generator, the Programmable Logic Controller of wherein controlling described impulse current generator is to the described power frequency supply of control, the Programmable Logic Controller of analogue means and Waveform Generator sends actuating signal back-to-back, carries out teamwork.
5. as claim 1 or 2 or 3 or 4 described a kind of AC/DC arrester team-work testers, it is characterized in that: described analogue means back-to-back utilizes transformer and converter valve to realize the conversion of AC-DC-exchanges, simulates the continuous running voltage signal under the various states.
6. as claim 1 or 2 or 3 or 4 described a kind of AC/DC arrester team-work testers, it is characterized in that: described Waveform Generator output current waveform in full-wave rectifier, dc waveform, half wave rectification wave or power frequency waveform.
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| CN2008101145286A CN101294999B (en) | 2008-06-06 | 2008-06-06 | AC/DC arrester team-work tester |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008101145286A CN101294999B (en) | 2008-06-06 | 2008-06-06 | AC/DC arrester team-work tester |
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| CN101294999A CN101294999A (en) | 2008-10-29 |
| CN101294999B true CN101294999B (en) | 2010-06-30 |
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| CN102236057B (en) * | 2011-01-14 | 2013-04-03 | 广东电网公司电力科学研究院 | Method for testing release device supporting lightning arrester |
| CN102818950B (en) * | 2012-07-27 | 2014-11-12 | 苏州泰思特电子科技有限公司 | Multi-waveform switching module for lightning stroke surge current testing system |
| CN103743968B (en) * | 2013-12-17 | 2016-07-06 | 上海交通大学 | The multiple lightning current resistance test method of metal oxide arrester |
| CN104267277B (en) * | 2014-09-23 | 2015-07-22 | 广东电网有限责任公司佛山供电局 | Overvoltage protective performance testing device for overvoltage protective device and control method and system |
| CN104820148A (en) * | 2015-05-05 | 2015-08-05 | 云南电网有限责任公司电力科学研究院 | Over-voltage measurement and simulation test platform of power transmission line |
| CN106908721A (en) * | 2017-04-18 | 2017-06-30 | 中国南方电网有限责任公司电网技术研究中心 | A kind of gas-insulated switchgear experimental rig and method |
| CN108169640A (en) * | 2017-12-29 | 2018-06-15 | 中国电力科学研究院有限公司 | One kind is based on gas isolated combined high-voltage generating means and method |
| CN109298263B (en) * | 2018-10-22 | 2021-02-02 | 西安交通大学 | Lightning arrester valve block accelerated aging test device based on direct current coupling impact power supply |
| CN111273097B (en) * | 2018-12-05 | 2022-09-23 | 西安高压电器研究院股份有限公司 | Action load test loop |
| CN112572828B (en) * | 2019-09-28 | 2022-09-27 | 苏州电器科学研究院股份有限公司 | Movable aircraft lightning test system |
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| CN201226018Y (en) * | 2008-06-06 | 2009-04-22 | 中国电力科学研究院 | AC/DC arrester team-work tester |
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2008
- 2008-06-06 CN CN2008101145286A patent/CN101294999B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1091835A (en) * | 1993-11-10 | 1994-09-07 | 江苏省电力试验研究所 | Lightning arrester leakance detects and discharge counter |
| CN201226018Y (en) * | 2008-06-06 | 2009-04-22 | 中国电力科学研究院 | AC/DC arrester team-work tester |
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