CN114089248A - Lightning stroke counter testing device and method - Google Patents
Lightning stroke counter testing device and method Download PDFInfo
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- CN114089248A CN114089248A CN202111422628.7A CN202111422628A CN114089248A CN 114089248 A CN114089248 A CN 114089248A CN 202111422628 A CN202111422628 A CN 202111422628A CN 114089248 A CN114089248 A CN 114089248A
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Abstract
The invention discloses a lightning stroke counter testing device and method. The lightning strike counter testing device comprises: the device comprises a power supply module, a control module, a first switch, a high-voltage generation module, a relay and a test contact; the control module is used for controlling the first switch to be closed every other first preset time according to preset times, and the power supply module is used for charging the high-voltage generation module when the first switch is closed; the control module is also used for controlling the first switch to be switched off and controlling the relay to be switched on when the charging time of the high-voltage generation module reaches a second preset time, and the high-voltage generation module is used for discharging to the lightning stroke counter through the relay and the test contact when the relay is switched on so as to judge whether the recording times of the lightning stroke counter accord with the preset times. According to the technical scheme, the accuracy of the lightning stroke counter test is improved, the test time is saved, and the test efficiency is improved.
Description
Technical Field
The embodiment of the invention relates to the technical field of testing, in particular to a lightning stroke counter testing device and method.
Background
The arrester is widely applied to the electric power system, and the quality of arrester itself, involve the operation safety of whole electric wire netting, the arrester bears the voltage for a long time, inside major component can deteriorate gradually, most expose also easily wet at open air arrester, can further aggravate its degradation speed, can arouse the explosion when serious, consequently, need utilize the lightning stroke counter to monitor the number of times of discharging of arrester, the arrester can in time be changed when the number of times of discharging of arrester reaches the upper limit.
The lightning stroke counter may have inaccurate counting during operation, which affects the accuracy of monitoring the lightning arrester, so the lightning stroke counter needs to be tested to ensure the normal operation of the lightning stroke counter.
At present, the handheld counter calibrator is mostly used for testing the lightning strike counter, but the handheld counter calibrator needs to manually charge and discharge the lightning strike counter, so that insufficient charge and discharge are easy to occur, the test result is inaccurate, the test time is long, and the test efficiency is low.
Disclosure of Invention
The invention provides a lightning stroke counter testing device and method, which are used for improving the testing accuracy of a lightning stroke counter and improving the testing efficiency.
In a first aspect, an embodiment of the present invention provides a lightning strike counter testing apparatus, where the lightning strike counter testing apparatus includes: the device comprises a power supply module, a control module, a first switch, a high-voltage generation module, a relay and a test contact;
the first end of the control module is electrically connected with the control end of the first switch, the first end of the first switch is electrically connected with the power module, the second end of the first switch is electrically connected with the input end of the high-voltage generation module, the control module is used for controlling the first switch to be closed every first preset time according to preset times, and the power module is used for charging the high-voltage generation module when the first switch is closed;
the control end of the relay is electrically connected with the second end of the control module, the first end of the relay is electrically connected with the output end of the high-voltage generation module, the second end of the relay is electrically connected with the test contact, the control module is further used for controlling the first switch to be switched off and controlling the relay to be switched on when the charging time of the high-voltage generation module reaches second preset time, and the high-voltage generation module is used for discharging to a lightning stroke counter through the relay and the test contact when the relay is switched on so as to judge whether the recording times of the lightning stroke counter accord with the preset times.
Optionally, the lightning strike counter testing device further comprises a second switch;
the second switch is electrically connected with a third end of the control module, and the control module is used for controlling the first switch to be closed when the second switch is closed.
Optionally, the lightning strike counter testing apparatus further includes a first operation module;
the first operation module is electrically connected with a fourth end of the control module, and the first operation module is used for receiving the input preset times.
Optionally, the lightning strike counter testing apparatus further includes a second operation module;
the second operation module is electrically connected with a fifth end of the control module and is used for receiving the input second preset time.
Optionally, the lightning strike counter testing device further comprises a third switch;
the first end of the third switch is electrically connected with the power supply module, the second end of the third switch is electrically connected with a power supply end of the control module, and the power supply module is used for supplying power to the control module through the third switch.
Optionally, the control module comprises a counting unit and a control unit;
the counting unit is electrically connected with the control unit and used for recording the charging times of the high-voltage generation module, and the control unit is used for controlling the first switch to be closed when the charging times are less than or equal to the preset times.
Optionally, the lightning strike counter testing apparatus further includes: a display module;
the display module is electrically connected with the sixth end of the control module and is used for displaying the charging times of the high-voltage generation module.
Optionally, the test contact comprises a metal ball.
Optionally, the power module comprises a battery.
In a second aspect, an embodiment of the present invention further provides a method for testing a lightning strike counter, where the method for testing a lightning strike counter includes:
the control module controls the first switch to be closed every first preset time according to preset times;
the power supply module charges the high-voltage generation module;
when the control module determines that the charging time of the high-voltage generation module reaches second preset time, the control module controls the first switch to be switched off and controls the relay to be switched on;
the high-voltage generation module discharges electricity to the lightning stroke counter through the relay and the test contact;
and when the recording times of the lightning stroke counter accord with the preset times, determining that the lightning stroke counter normally operates.
The invention controls the first switch to be closed every first preset time according to the preset times through the control module, the power supply module charges the high-voltage generation module through the first switch, when the charging time of the high-voltage generation module reaches the second preset time, the high-voltage generation module is indicated to be fully charged, the control module controls the first switch to be disconnected and controls the relay to be closed, the high-voltage generation module discharges to the lightning stroke counter through the relay and the test contact, the process of charging and discharging the high-voltage generation module is repeated until the test times reach the preset times, then the recording times of the lightning stroke counter are read, if the recording times of the lightning stroke counter are consistent with the preset times, the lightning stroke counter can normally run, thereby realizing the process of automatic charging and discharging, and the test contact can be always contacted with the lightning stroke counter without manually triggering discharging, the lightning stroke counter testing device has the advantages that manual charging and discharging are not needed, complete charging and discharging can be achieved, accuracy of lightning stroke counter testing is improved, testing time is saved, and testing efficiency is improved. The invention solves the problems of inaccurate test result, long test time and low test efficiency caused by insufficient charge and discharge easily when the lightning stroke counter is charged and discharged manually, improves the test accuracy of the lightning stroke counter, saves the test time and improves the test efficiency.
Drawings
FIG. 1 is a schematic circuit diagram of a lightning strike counter testing device according to an embodiment of the present invention;
FIG. 2 is a schematic circuit diagram of a lightning strike counter testing device according to another embodiment of the invention;
FIG. 3 is a flow chart of a lightning strike counter testing method according to an embodiment of the invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Fig. 1 is a schematic circuit structure diagram of a lightning strike counter testing device provided by an embodiment of the invention, and referring to fig. 1, the lightning strike counter testing device includes: the testing device comprises a power supply module 101, a control module 102, a first switch 103, a high-voltage generation module 104, a relay 105 and a test contact 106; a first end of the control module 102 is electrically connected with a control end of the first switch 103, a first end of the first switch 103 is electrically connected with the power module 101, a second end of the first switch 103 is electrically connected with an input end of the high voltage generation module 104, the control module 102 is used for controlling the first switch 103 to be closed every first preset time according to preset times, and the power module 101 is used for charging the high voltage generation module 104 when the first switch 103 is closed; the control end of the relay 105 is electrically connected with the second end of the control module 102, the first end of the relay 105 is electrically connected with the output end of the high voltage generation module 104, the second end of the relay 105 is electrically connected with the test contact 106, the control module 102 is further used for controlling the first switch 103 to be switched off and controlling the relay 105 to be switched on when the charging time of the high voltage generation module 104 reaches a second preset time, and the high voltage generation module 104 is used for discharging to the lightning stroke counter through the relay 105 and the test contact 106 when the relay 105 is switched on so as to judge whether the recording times of the lightning stroke counter accord with the preset times.
The preset times are times for testing the lightning strike counter, that is, times for discharging the lightning strike counter, that is, times for charging and discharging the high voltage generation module 104. The first preset time refers to the sum of the charging time and the discharging time of the high voltage generation module 104, i.e. the time interval between two adjacent tests of the lightning strike counter. The second preset time is a time when the high voltage generating module 104 is fully charged, and may also be a time longer than the time when the high voltage generating module 104 is fully charged, so as to ensure that the high voltage generating module 104 is fully charged.
Specifically, when a lightning strike counter is tested, the control module 102 controls the first switch 103 to be closed every a first preset time, the power module 101 charges the high voltage generation module 104 through the first switch 103, when the charging time of the high voltage generation module 104 reaches a second preset time, it indicates that the high voltage generation module 104 is fully charged, the control module 102 controls the first switch 103 to be opened and controls the relay 105 to be closed, the high voltage generation module 104 discharges to the lightning strike counter through the relay 105 and the test contact 106, the lightning strike counter can record the discharging times, the charging and discharging processes of the high voltage generation module 104 are repeated until the testing times reaches the preset times, then the recorded times of the lightning strike counter are read, if the recorded times of the lightning strike counter is consistent with the preset times, it indicates that the lightning strike counter can normally operate, and if the recorded times of the lightning strike counter is inconsistent with the preset times, the lightning strike counter may fail and require repair or replacement. The control module 102 controls the first switch 103 to be closed every first preset time according to preset times, the power supply module 101 charges the high-voltage generation module 104, when the charging time reaches second preset time, the high-voltage generation module 104 discharges a lightning stroke counter, the automatic charging and discharging process is completed, the test contact 106 can be always in contact with the lightning stroke counter, and the test contact 106 is not required to be disconnected from the lightning stroke counter during charging; and moreover, the complete charging and discharging can be realized without manual charging and discharging or manual trigger discharging, so that the accuracy of the test of the lightning stroke counter is improved, the test time is saved, and the test efficiency is improved.
According to the technical scheme of the embodiment, the control module controls the first switch to be closed every first preset time according to the preset times, the power supply module charges the high-voltage generation module through the first switch, when the charging time of the high-voltage generation module reaches the second preset time, the high-voltage generation module is indicated to be fully charged, the control module controls the first switch to be opened and controls the relay to be closed, the high-voltage generation module discharges to the lightning stroke counter through the relay and the test contact, the charging and discharging processes of the high-voltage generation module are repeated until the test times reach the preset times, then the recording times of the lightning stroke counter are read, if the recording times of the lightning stroke counter are consistent with the preset times, the normal operation of the lightning stroke counter is indicated, so that the automatic charging and discharging process is realized, and the test contact can be always contacted with the lightning stroke counter, the lightning stroke counter has the advantages that manual trigger discharge and manual charge and discharge are not needed, complete charge and discharge can be realized, so that the accuracy of the test of the lightning stroke counter is improved, the test time is saved, and the test efficiency is improved. The technical scheme of this embodiment has solved and has carried out manual charge-discharge to the thunderbolt counter, and the charge-discharge is not abundant to appear easily, causes the test result inaccurate, and test time is long moreover, and the problem of efficiency of software testing is low, has improved the accuracy to the thunderbolt counter test to practice thrift test time, improved efficiency of software testing.
Fig. 2 is a schematic circuit diagram of another lightning strike counter testing device provided by an embodiment of the invention, and optionally, referring to fig. 2, the lightning strike counter testing device further includes a second switch 107; the second switch 107 is electrically connected to a third terminal of the control module 102, and the control module 102 is configured to control the first switch 103 to be closed when the second switch 107 is closed.
Specifically, after the lightning strike counter testing device is connected to the lightning strike counter, the second switch 107 is closed, and when the control module 102 detects that the second switch 107 is closed, the first switch 103 is controlled to be closed, and the power module 101 charges the high voltage generation module 104. When the first end of the second switch 107 is grounded and the second switch 107 is closed, the third end of the control module 102 receives a low-level signal, and the control module 102 knows that the second switch 107 is closed; when the first terminal of the second switch 107 is connected to the power signal, and the second switch 107 is closed, the third terminal of the control module 102 receives the high level signal, and the control module 102 knows that the second switch 107 is closed. Fig. 2 shows only the case where the second switch 107 is grounded, but the present invention is not limited thereto.
Optionally, referring to fig. 2, the lightning strike counter testing apparatus further comprises a first operation module 108; the first operation module 108 is electrically connected to the fourth terminal of the control module 102, and the first operation module 108 is configured to receive a preset number of inputs.
Specifically, the first operation module 108 may include a knob or a key, and a preset number of times may be input through the first operation module 108, and the control module 102 may control the first switch 103 to be turned on every first preset time according to the preset number of times, so that the high voltage generation module 104 performs charging and discharging according to the preset number of times, and when the number of times recorded by the lightning strike counter matches the preset number of times, it indicates that the lightning strike counter may operate normally.
Optionally, referring to fig. 2, the lightning strike counter testing apparatus further comprises a second operation module 109; the second operation module 109 is electrically connected to the fifth end of the control module 102, and the second operation module 109 is configured to receive an input of a second preset time.
Specifically, the second operating module 109 may include a knob or a key, a second preset time may be input through the second operating module 109, and the second preset time is a charging time of the high voltage generating module 104, and therefore, different second preset times may be input according to different power modules 101 and different high voltage generating modules 104 to adapt to different power modules 101 and different high voltage generating modules 104, so as to ensure that the high voltage generating module 104 may be fully charged, so as to ensure that the high voltage generating module 104 may discharge a lightning strike counter, and thus, accuracy of testing the lightning strike counter may be improved.
Optionally, referring to fig. 2, the lightning strike counter testing device further comprises a third switch 110; a first end of the third switch 110 is electrically connected to the power module 101, a second end of the third switch 110 is electrically connected to a power end of the control module 102, and the power module 101 is configured to supply power to the control module through the third switch 110.
Specifically, when the lightning strike counter testing device is used for testing, the third switch 110 is firstly closed, so that the power module 101 can supply power to the control module 102, the control module 102 is powered on to start working, and after the test is finished, the third switch 110 can be disconnected, so that the control module 102 is powered off, power consumption can be reduced, and the effect of saving cost is achieved.
Alternatively, referring to fig. 2, the control module 102 includes a counting unit 1021 and a control unit 1022; the counting unit 1021 is electrically connected with the control unit 1022, the counting unit 1021 is used for recording the charging times of the high voltage generation module 104, and the control unit 1022 is used for controlling the first switch 103 to be closed when the charging times are less than or equal to the preset times.
Specifically, the counting unit 1021 may record the charging number of the high voltage generation module 104, when the first switch 103 is closed, the charging number recorded by the counting unit 1021 is increased by 1, when the charging number recorded by the counting unit 1021 is less than or equal to a preset number, it indicates that the test has not been completed, the control unit 1022 may control the first switch 103 to be closed, and when the charging number recorded by the counting unit 1021 is greater than the preset number, the control unit 1022 stops controlling the first switch 103 to be closed, and the test is completed. In addition, the counting unit 1021 may further record the discharge frequency of the high voltage generation module 104, the high voltage generation module 104 discharges to the lightning strike counter once, the discharge frequency recorded by the counting unit 1021 is increased by 1, when the discharge frequency recorded by the counting unit 1021 is equal to the preset frequency, it indicates that the discharge to the lightning strike counter is completed, the control unit 1022 stops controlling the first switch 103 to be closed, and the test is ended.
Optionally, referring to fig. 2, the lightning strike counter testing apparatus further includes: a display module 120; the display module 120 is electrically connected to the sixth terminal of the control module 102, and the display module 120 is configured to display the charging frequency of the high voltage generation module 104.
Specifically, the charging times recorded by the counting unit 1021 in the control module 102 may be sent to the display module 120, and the display module 120 displays the charging times of the high voltage generation module 104, so that the worker can know the test state and the test progress in real time. The display module 120 may further receive the discharge times recorded by the counting unit 1021 in the control module 102, so that the discharge times of the high voltage generation module 104 may be displayed in real time, and a worker may know the charge and discharge state and the test progress in real time.
It should be noted that the first end of the control unit 1022 is a first end of the control module 102, the second end of the control unit 1022 is a second end of the control module 102, the third end of the control unit 1022 is a third end of the control module 102, the fourth end of the control unit 1022 is a fourth end of the control module 102, the fifth end of the control unit 1022 is a fifth end of the control module 102, the sixth end of the control unit 1022 is a sixth end of the control module 102, the seventh end of the control unit 1022 is electrically connected to the counting unit 1021, and the power source end of the control unit 1022 is a power source end of the control module 102.
Alternatively, referring to fig. 2, the test contacts 106 comprise metal balls.
Specifically, the test contact 106 includes, for example, a metal ball, and the high voltage generation module 104 may discharge the lightning strike counter through the test contact 106, and the metal ball may facilitate contact with the lightning strike counter and discharge the lightning strike counter.
Alternatively, referring to fig. 2, the power module 101 includes a battery.
Specifically, the power module 101 includes a battery, which is convenient to carry and test the lightning strike counter on the site, and the battery is a rechargeable battery, which can be recycled, and is beneficial to saving cost. The capacity of the battery may be determined according to actual conditions, for example, according to a discharge voltage of a lightning strike counter, and is not limited herein.
Fig. 3 is a flowchart of a method for testing a lightning strike counter according to an embodiment of the present invention, and referring to fig. 3, the method for testing a lightning strike counter includes:
and S310, the control module controls the first switch to be closed every first preset time according to preset times.
The preset times are times for testing the lightning strike counter, that is, times for discharging the lightning strike counter, that is, times for charging and discharging the high voltage generation module 104. The first preset time refers to the sum of the charging time and the discharging time of the high voltage generation module 104, i.e. the time interval between two adjacent tests of the lightning strike counter. When the lightning strike counter is tested, the control module 102 controls the first switch 103 to be closed every first preset time, so that the lightning strike counter can be automatically discharged, and the discharging times of the lightning strike counter are preset times.
And S320, charging the high-voltage generation module by the power supply module.
Specifically, when the first switch 103 is closed, the power module 101 charges the high voltage generation module 104 through the first switch 103, and the high voltage generation module 104 may store the voltage output by the power module 101.
S330, when the control module determines that the charging time of the high-voltage generation module reaches second preset time, the first switch is controlled to be switched off, and the relay is controlled to be switched on.
Specifically, the second preset time is a time when the high voltage generation module 104 is fully charged, and may also be a time longer than the time when the high voltage generation module 104 is fully charged, so as to ensure that the high voltage generation module 104 is fully charged. When the charging time of the high voltage generation module 104 reaches the second preset time, which indicates that the high voltage generation module 104 is fully charged, the control module 102 controls the first switch 103 to be opened and controls the relay 105 to be closed.
And S340, discharging to a lightning stroke counter through the relay and the test contact by the high-voltage generation module.
Specifically, after the relay 105 is closed, the high voltage generation module 104 may discharge electricity to the lightning strike counter through the relay 105 and the test contact 106, and the lightning strike counter may record the number of times of discharge. The relay 105 is a high voltage relay and can receive the high voltage electrical signal output by the high voltage generation module 104.
And S350, when the recording times of the lightning stroke counter accord with the preset times, determining that the lightning stroke counter normally operates.
Specifically, the process of charging and discharging the high voltage generation module 104 is repeated until the test frequency reaches the preset frequency, and then the recording frequency of the lightning strike counter is read, if the recording frequency of the lightning strike counter is consistent with the preset frequency, it indicates that the lightning strike counter can normally operate, and if the recording frequency of the lightning strike counter is not consistent with the preset frequency, the lightning strike counter may malfunction, and needs to be repaired or replaced.
The first switch 103 is controlled to be closed by the control module 102 every first preset time according to preset times, the power module 101 charges the high-voltage generation module 104, when the charging time reaches second preset time, the high-voltage generation module 104 discharges a lightning stroke counter, the automatic charging and discharging process is completed, the test contact 106 can be always in contact with the lightning stroke counter, manual triggering and discharging are not needed, manual charging and discharging are not needed, complete charging and discharging can be achieved, the accuracy of testing the lightning stroke counter is improved, the testing time is saved, and the testing efficiency is improved.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A lightning strike counter testing device, comprising: the device comprises a power supply module, a control module, a first switch, a high-voltage generation module, a relay and a test contact;
the first end of the control module is electrically connected with the control end of the first switch, the first end of the first switch is electrically connected with the power module, the second end of the first switch is electrically connected with the input end of the high-voltage generation module, the control module is used for controlling the first switch to be closed every first preset time according to preset times, and the power module is used for charging the high-voltage generation module when the first switch is closed;
the control end of the relay is electrically connected with the second end of the control module, the first end of the relay is electrically connected with the output end of the high-voltage generation module, the second end of the relay is electrically connected with the test contact, the control module is further used for controlling the first switch to be switched off and controlling the relay to be switched on when the charging time of the high-voltage generation module reaches second preset time, and the high-voltage generation module is used for discharging to a lightning stroke counter through the relay and the test contact when the relay is switched on so as to judge whether the recording times of the lightning stroke counter accord with the preset times.
2. The lightning strike counter testing device of claim 1, further comprising a second switch;
the second switch is electrically connected with a third end of the control module, and the control module is used for controlling the first switch to be closed when the second switch is closed.
3. The lightning strike counter testing device of claim 1, further comprising a first operating module;
the first operation module is electrically connected with a fourth end of the control module, and the first operation module is used for receiving the input preset times.
4. The lightning strike counter testing device of claim 1, further comprising a second operational module;
the second operation module is electrically connected with a fifth end of the control module and is used for receiving the input second preset time.
5. The lightning strike counter testing device of claim 1, further comprising a third switch;
the first end of the third switch is electrically connected with the power supply module, the second end of the third switch is electrically connected with a power supply end of the control module, and the power supply module is used for supplying power to the control module through the third switch.
6. The lightning strike counter testing device of claim 1, wherein the control module comprises a counting unit and a control unit;
the counting unit is electrically connected with the control unit and used for recording the charging times of the high-voltage generation module, and the control unit is used for controlling the first switch to be closed when the charging times are less than or equal to the preset times.
7. The lightning strike counter testing device of claim 6, further comprising: a display module;
the display module is electrically connected with the sixth end of the control module and is used for displaying the charging times of the high-voltage generation module.
8. The lightning strike counter testing device of claim 1, wherein the test contact comprises a metal ball.
9. The lightning strike counter testing device of claim 1, wherein the power module includes a battery.
10. A lightning strike counter testing method, comprising:
the control module controls the first switch to be closed every first preset time according to preset times;
the power supply module charges the high-voltage generation module;
when the control module determines that the charging time of the high-voltage generation module reaches second preset time, the control module controls the first switch to be switched off and controls the relay to be switched on;
the high-voltage generation module discharges electricity to the lightning stroke counter through the relay and the test contact;
and when the recording times of the lightning stroke counter accord with the preset times, determining that the lightning stroke counter normally operates.
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|---|---|---|---|
| CN202111422628.7A CN114089248A (en) | 2021-11-26 | 2021-11-26 | Lightning stroke counter testing device and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111422628.7A CN114089248A (en) | 2021-11-26 | 2021-11-26 | Lightning stroke counter testing device and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101702013A (en) * | 2009-12-22 | 2010-05-05 | 北京送变电公司 | Test setup for lightning strike counter |
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| CN205139349U (en) * | 2015-11-22 | 2016-04-06 | 江苏省电力公司苏州供电公司 | Arrester discharge counter and leakage current table check gauge |
| CN207318582U (en) * | 2017-09-30 | 2018-05-04 | 国网吉林德惠市供电有限公司 | Arrester charge counter tester |
| CN109061348A (en) * | 2018-08-08 | 2018-12-21 | 江苏省送变电有限公司 | Extra-high voltage project no residual voltage lightning arrester monitor detection device through-flow greatly |
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2021
- 2021-11-26 CN CN202111422628.7A patent/CN114089248A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101702013A (en) * | 2009-12-22 | 2010-05-05 | 北京送变电公司 | Test setup for lightning strike counter |
| CN104777444A (en) * | 2015-04-14 | 2015-07-15 | 国网辽宁省电力有限公司抚顺供电公司 | Lightning arrester discharge counter comprehensive calibration instrument and calibration method |
| CN205139349U (en) * | 2015-11-22 | 2016-04-06 | 江苏省电力公司苏州供电公司 | Arrester discharge counter and leakage current table check gauge |
| CN207318582U (en) * | 2017-09-30 | 2018-05-04 | 国网吉林德惠市供电有限公司 | Arrester charge counter tester |
| CN109061348A (en) * | 2018-08-08 | 2018-12-21 | 江苏省送变电有限公司 | Extra-high voltage project no residual voltage lightning arrester monitor detection device through-flow greatly |
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