CN101702013A - Testing device of lightning stroke counter - Google Patents
Testing device of lightning stroke counter Download PDFInfo
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- CN101702013A CN101702013A CN200910259385A CN200910259385A CN101702013A CN 101702013 A CN101702013 A CN 101702013A CN 200910259385 A CN200910259385 A CN 200910259385A CN 200910259385 A CN200910259385 A CN 200910259385A CN 101702013 A CN101702013 A CN 101702013A
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- stroke counter
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- 208000025274 Lightning injury Diseases 0.000 title claims abstract description 48
- 238000012360 testing method Methods 0.000 title claims abstract description 32
- 238000006243 chemical reaction Methods 0.000 claims abstract description 33
- 238000007600 charging Methods 0.000 claims abstract description 9
- 238000009434 installation Methods 0.000 claims description 38
- 230000008676 import Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 9
- 239000003990 capacitor Substances 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 7
- 238000007599 discharging Methods 0.000 abstract description 2
- 230000009471 action Effects 0.000 description 6
- 238000001514 detection method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 238000009527 percussion Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- APTZNLHMIGJTEW-UHFFFAOYSA-N pyraflufen-ethyl Chemical compound C1=C(Cl)C(OCC(=O)OCC)=CC(C=2C(=C(OC(F)F)N(C)N=2)Cl)=C1F APTZNLHMIGJTEW-UHFFFAOYSA-N 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
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Abstract
The invention discloses a testing device of a lightning stroke counter, comprising a capacitor bank, a power conversion unit, a switch unit, an input unit, a CPU and a display unit, wherein the capacitor bank is used for discharging to the lightning stroke counter; the power conversion unit is used for converting an input current into a current for charging the capacitor bank; the switch unit is connected with the power conversion unit and the capacitor bank and used for switching on or off the charging current of the power conversion unit to the capacitor bank; the input unit is used for inputting an operational instruction of a user; the CPU is used for receiving an input signal of the input unit and controlling the current conversion of the power conversion unit and the on-off of the switch unit; and the display unit is used for displaying the output of the CPU. The invention can realize continuous and automatic test according to man-made testing frequency, greatly facilitates and simplifies the testing operation process, reduces the workload and saves the testing time.
Description
Technical field
The present invention relates to proving installation, particularly relate to a kind of proving installation of lightning stroke counter.
Background technology
Lightning arrester is an overvoltage protection important in the transformer station, and it can effectively protect apparatus insulated avoiding to damage.When electrical network is subjected to Lightning Over-voltage or switching overvoltage effect and reaches the voltage limit of regulation; the lightning arrester action; release superpotential load, the level that the overvoltage Limiting that thunderbolt etc. is caused can bear to insulator arrangement, thus play the apparatus insulated effect of protection.
Move in order to judge lightning arrester whether to be subjected to the superpotential effect; and the number of times of operation of recording, can use arrester discharge counter usually in the prior art, be commonly called as lightning stroke counter and come action frequency is carried out record; so that understand lightning arrester ruuning situation, and analyze relevant accident.
Can lightning stroke counter be installed in the open air with lightning arrester, and it can be subjected to the influence of atmospheric environment, therefore, needs regularly it to be carried out reliability and detects, continue operate as normal to judge it.In the prior art lightning stroke counter being carried out the method that reliability detects is: the megger that adopts 500V is to a 600V, the charging of 10 μ F capacitors, and stable back to be charged is keeping disconnecting charge circuit under the constant situation of megger rotating speed; Charged capacitor is connected to lightning stroke counter as proving installation and to its discharge, this moment, lightning stroke counter should move once.Adopt this method long run test 3～10 times, if equal energy precision maneuver thinks that then counting properties is intact.
After lightning stroke counter is finished reliability and detected, need again its counting indication to be proofreaied and correct make zero, so that it is installed once more and then be used for the action frequency record.And lightning stroke counter is to adopt bulk billing system to represent the device of the action situation of lightning arrester, only totally to full scale, just understand self-zeroing at action frequency, based on these characteristics in the lightning stroke counter Machine Design, those skilled in the art are after finishing the reliability detection, also need continue repeatedly to use above-mentioned detection method to come it is counted adds up, until making zero, and the counting range of lightning stroke counter relatively large (being about 1000 times), this will certainly increase the workload of testing crew greatly.For example, a range is 1000 times a lightning stroke counter, has moved 10 times after reliability detects carrying out, for its counting indication is made zero, also need the use test device that it is carried out 990 discharges, certainly, also need megger that this proving installation is carried out 990 chargings, obviously, workload is very large.The lightning stroke counter that there are various electric pressures in a common 500KV transformer station is more than 60, and very loaded down with trivial details by above-mentioned detection method, sense cycle also can be very long.
Therefore, once only can realize the measurement mechanism of a counting operation in the prior art, not satisfy the demand that the site test personnel simplify the operation course and reduce workload lightning stroke counter.
Summary of the invention
In view of this, the invention provides a kind of proving installation of lightning stroke counter, can only realize the problem of a counting operation to lightning stroke counter to solve existing proving installation.
The object of the invention to solve the technical problems realizes by the following technical solutions.The proving installation of a kind of lightning stroke counter that proposes according to the present invention, comprising: capacitance group is used for described lightning stroke counter discharge; Power conversion unit is used for input current is converted to the electric current that charges to described capacitance group; Switch element is connected with described capacitance group with described power conversion unit, is used to open or turn-off the charging current of described power conversion unit to described capacitance group; Input block is used to import user's operational order; CPU is used to receive the input signal of described input block and controls the current conversion of described power conversion unit and the break-make of described switch element; And display unit, be used for showing according to the output of described CPU.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
Aforesaid proving installation, the operational order of described input block input comprises the testing time to described lightning stroke counter.
Aforesaid proving installation also comprises a reset unit, and it is connected in described CPU.
Aforesaid proving installation comprises that also one suspends the unit, and it is connected in described CPU.
Aforesaid proving installation comprises in the described power conversion unit: booster circuit and rectifier bridge, and described booster circuit is used for when described input current is a direct current power supply, and it is boosted is the described rectifier bridge of input behind the alternating voltage; And described rectifier bridge, being used for described ac voltage rectifier is direct current signal.
Aforesaid proving installation, described switch element are the MOS switching tube.
Aforesaid proving installation, described input block are keyboard.
As shown from the above technical solution, have following beneficial effect:
The proving installation of lightning stroke counter of the present invention can be realized continuous and automatic testing according to the testing time of artificial setting, greatly facilitates and simplifies test operating procedure, has reduced workload, has saved the test duration.
With reference to the accompanying drawing description of a preferred embodiment, above-mentioned and other purpose of the present invention, feature and advantage will be more obvious by following.
Description of drawings
Fig. 1 is the cut-away view of proving installation first embodiment of lightning stroke counter of the present invention;
Fig. 2 is the cut-away view of power conversion unit among proving installation second embodiment of lightning stroke counter of the present invention;
Fig. 3 is another cut-away view of power conversion unit among proving installation second embodiment of lightning stroke counter of the present invention.
Embodiment
To describe specific embodiments of the invention in detail below.Should be noted that the embodiments described herein only is used to illustrate, be not limited to the present invention.
The proving installation of lightning stroke counter provided by the present invention can be by the artificial testing time of setting, make lightning stroke counter carry out the continuous several times counting according to the testing time of setting, simplify the reliability testing process and the counting indication of lightning stroke counter and proofreaied and correct the process that makes zero, reduce workload, and saved test period.
See also shown in Figure 1ly, it is the cut-away view of proving installation first embodiment of lightning stroke counter of the present invention.Proving installation 1 of the present invention comprises capacitance group 11, power conversion unit 12, switch element 13, input block 14, CPU15 and display unit 16.Wherein, capacitance group 11 is used for connected lightning stroke counter 2 is discharged so that this lightning stroke counter 2 is counted, and this capacitance group 11 is connected to form by a plurality of electric capacity; Power conversion unit 12 is used for input current is converted to the electric current that charges to capacitance group 11; Switch element 13 is connected with capacitance group 11 with power conversion unit 12, be used to open or the charging current of 12 pairs of capacitance group 11 of power cutoff converting unit, when switch element 13 is opened, 11 chargings of 12 pairs of capacitance group of power conversion unit, when switch element 13 turn-offs, 2 discharges of 11 pairs of lightning stroke counters of capacitance group; Input block 14 is used to import user's operational order, for example imports testing time or input test enabling signal to lightning stroke counter 2, and this input media 14 for example is a keyboard; CPU15 is used to receive the input signal of input block 14, and when comprising testing time in the input signal, it can store the break-make number of times of testing time and control switch unit, and it also controls the current conversion of power conversion unit 12 simultaneously; Display unit 16 is used for showing according to the output of CPU15 that for example, CPU15 can control the remaining testing time of display unit 16 demonstrations according to the testing time of its storage and the number of times that has discharged of capacitance group 11.
In the present embodiment, proving installation 1 comprises that also one is connected in the reset unit 17 of CPU15, is used for this this proving installation 1 is resetted, for example in this proving installation operating process, be in an emergency, can this proving installation resetted, be not damaged to protect it by this reset unit 17; This proving installation 1 comprises that also one is connected in the time-out unit 18 of CPU15, be used to make this proving installation 1 to suspend, this time-out unit 18 can also be realized: click this time-out unit 18 and can make this proving installation 1 break-off, press once more, the display unit zero clearing, and this proving installation 1 is resetted for testing next time.
The present invention also proposes second embodiment, and in the present embodiment, CPU15 realizes by a single-chip microcomputer, for example is 89E58RD; Power conversion unit 12 is a structure as shown in Figure 2, this power conversion unit 12 comprises booster circuit 121 and rectifier bridge 122, booster circuit 121 is used for when input current is a direct current power supply, it is boosted is input rectifying bridge 122 behind the alternating current, in the present embodiment, this input current is the less direct supply from the outside input, for example is 5～12V, and through the alternating voltage about exportable 1000V after these booster circuit 121 processing; The ac voltage rectifier that rectifier bridge 122 is used for booster circuit 121 output is an input switch unit 13 behind the direct current signal, and like this, power conversion unit 12 alternative meggers of the prior art be that capacitance group 11 is charged under switch element 13 controls.
Further, as shown in Figure 3, power conversion unit 12 also can comprise a voltage conversion circuit 123, be used for when the direct supply of input and this power conversion unit 12 when not matching, after this direct supply is converted into second direct supply that matches, input to this booster circuit 121 as operating voltage.
Switch element 13 in the present embodiment is the MOS switching tube, CPU15 control MOS switching tube break-make can realize the charge and discharge to electric capacity, the superpotential that capacitor discharge produces is to lightning stroke counter 2 discharges, and lightning stroke counter moves, thereby realizes whether the lightning stroke counter performance is detected normally.
Introduce the course of work when proving installation is used to test in the present embodiment below: at first by input block 14 input test number of times, CPU15 reads in this time logarithmic data and preserves.Detect the enabling signal of input block 14 inputs again as CPU15 after, proving installation 1 is started working, and carries out the charge and discharge process one by one according to the number of times of setting.Each charge and discharge process is cut-off for control MOS switching tube---during the each conducting of MOS switching tube, power conversion unit 12 is responsible for capacitance group 11 chargings, electric charge is full of back MOS switching tube and disconnects, electric charge on the electric capacity is to lightning stroke counter 2 discharges at this moment, the lightning stroke counter 2 superpotential percussion action that is subjected to discharging is finished the single step of releasing electric process.
The present invention can realize 9999 times with interior continuous and automatic testing according to the testing time of artificial setting, and have reset, function such as time-out, be the very high Hi-pot test device of automaticity and practical level.
Though described the present invention with reference to several exemplary embodiments, should be appreciated that used term is explanation and exemplary and nonrestrictive term.The spirit or the essence that do not break away from invention because the present invention can specifically implement in a variety of forms, so be to be understood that, the foregoing description is not limited to any aforesaid details, and should be in the spirit and scope that claim limited of enclosing explain widely, therefore fall into whole variations in claim or its equivalent scope and remodeling and all should be the claim of enclosing and contain.
Claims (7)
1. the proving installation of a lightning stroke counter is characterized in that, comprising:
Capacitance group is used for described lightning stroke counter discharge;
Power conversion unit is used for input current is converted to the electric current that charges to described capacitance group;
Switch element is connected with described capacitance group with described power conversion unit, is used to open or turn-off the charging current of described power conversion unit to described capacitance group;
Input block is used to import user's operational order;
CPU is used to receive the input signal of described input block and controls the current conversion of described power conversion unit and the break-make of described switch element; And
Display unit is used for showing according to the output of described CPU.
2. the proving installation of lightning stroke counter according to claim 1 is characterized in that, the operational order of described input block input comprises the testing time to described lightning stroke counter.
3. the proving installation of lightning stroke counter according to claim 1 is characterized in that, also comprises a reset unit, and it is connected in described CPU.
4. the proving installation of lightning stroke counter according to claim 1 is characterized in that, comprises that also one suspends the unit, and it is connected in described CPU.
5. according to the proving installation of each described lightning stroke counter among the claim 1-4, it is characterized in that, comprise in the described power conversion unit: booster circuit and rectifier bridge,
Described booster circuit is used for when described input current is a direct current power supply, and it is boosted is the described rectifier bridge of input behind the alternating voltage; And
Described rectifier bridge, being used for described ac voltage rectifier is direct current signal.
6. the proving installation of lightning stroke counter according to claim 1 is characterized in that, described switch element is the MOS switching tube.
7. the proving installation of lightning stroke counter according to claim 1 is characterized in that, described input block is a keyboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102593852A CN101702013B (en) | 2009-12-22 | 2009-12-22 | Testing device of lightning stroke counter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102593852A CN101702013B (en) | 2009-12-22 | 2009-12-22 | Testing device of lightning stroke counter |
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| CN101702013A true CN101702013A (en) | 2010-05-05 |
| CN101702013B CN101702013B (en) | 2012-04-25 |
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| CN2009102593852A Active CN101702013B (en) | 2009-12-22 | 2009-12-22 | Testing device of lightning stroke counter |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102305887A (en) * | 2011-06-03 | 2012-01-04 | 湛江高压电器有限公司 | Discharging current counter |
| CN102508188A (en) * | 2011-12-13 | 2012-06-20 | 河南省电力公司周口供电公司 | On-line detection device for lightning arrester discharge counter |
| CN104931910A (en) * | 2015-06-09 | 2015-09-23 | 苏州市华安普电力工程有限公司 | Tester for lightning stroke counter |
| CN106707214A (en) * | 2016-12-30 | 2017-05-24 | 武汉市欧睿科技有限公司 | Lightning strike counter check meter |
| CN107589389A (en) * | 2017-10-16 | 2018-01-16 | 国家电网公司 | Arrester discharge counter calibration equipment and method of calibration |
| CN114089248A (en) * | 2021-11-26 | 2022-02-25 | 广东电网有限责任公司 | Lightning stroke counter testing device and method |
-
2009
- 2009-12-22 CN CN2009102593852A patent/CN101702013B/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102305887A (en) * | 2011-06-03 | 2012-01-04 | 湛江高压电器有限公司 | Discharging current counter |
| CN102305887B (en) * | 2011-06-03 | 2013-08-21 | 湛江高压电器有限公司 | Discharging current counter |
| CN102508188A (en) * | 2011-12-13 | 2012-06-20 | 河南省电力公司周口供电公司 | On-line detection device for lightning arrester discharge counter |
| CN104931910A (en) * | 2015-06-09 | 2015-09-23 | 苏州市华安普电力工程有限公司 | Tester for lightning stroke counter |
| CN106707214A (en) * | 2016-12-30 | 2017-05-24 | 武汉市欧睿科技有限公司 | Lightning strike counter check meter |
| CN107589389A (en) * | 2017-10-16 | 2018-01-16 | 国家电网公司 | Arrester discharge counter calibration equipment and method of calibration |
| CN114089248A (en) * | 2021-11-26 | 2022-02-25 | 广东电网有限责任公司 | Lightning stroke counter testing device and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101702013B (en) | 2012-04-25 |
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Owner name: BEIJING ELECTRIC DISTRIBUTION CO. Effective date: 20130115 Owner name: STATE ELECTRIC NET CROP. Free format text: FORMER OWNER: BEIJING ELECTRIC DISTRIBUTION CO. Effective date: 20130115 |
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Free format text: CORRECT: ADDRESS; FROM: 102401 FANGSHAN, BEIJING TO: 100031 DONGCHENG, BEIJING |
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Effective date of registration: 20130115 Address after: 100031 West Chang'an Avenue, Beijing, No. 86 Patentee after: State Grid Corporation of China Patentee after: Beijing Electric Distribution Co. Address before: 102401 Beijing city Fangshan District Township Haotian Street No. 7 Patentee before: Beijing Electric Distribution Co. |