CN116365460A - Low-power-consumption self-powered arrester data acquisition circuit and arrester counter - Google Patents
Low-power-consumption self-powered arrester data acquisition circuit and arrester counter Download PDFInfo
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- CN116365460A CN116365460A CN202310644631.6A CN202310644631A CN116365460A CN 116365460 A CN116365460 A CN 116365460A CN 202310644631 A CN202310644631 A CN 202310644631A CN 116365460 A CN116365460 A CN 116365460A
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- 238000005070 sampling Methods 0.000 claims abstract description 21
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 30
- 238000004146 energy storage Methods 0.000 claims description 26
- 239000003990 capacitor Substances 0.000 claims description 23
- 239000013256 coordination polymer Substances 0.000 claims description 16
- 239000011787 zinc oxide Substances 0.000 claims description 15
- 230000009471 action Effects 0.000 claims description 5
- 208000025274 Lightning injury Diseases 0.000 abstract description 5
- 238000012544 monitoring process Methods 0.000 abstract description 3
- 238000004870 electrical engineering Methods 0.000 abstract description 2
- 230000007246 mechanism Effects 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 230000003044 adaptive effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 230000005059 dormancy Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
- G01R19/17—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values giving an indication of the number of times this occurs, i.e. multi-channel analysers
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/06—Arrangements for supplying operative power
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J11/00—Circuit arrangements for providing service supply to auxiliaries of stations in which electric power is generated, distributed or converted
Abstract
The invention relates to the technical field of electrical engineering, and discloses a low-power-consumption self-powered arrester data acquisition circuit and an arrester counter, wherein the low-power-consumption self-powered arrester data acquisition circuit comprises a self-powered unit and a sampling frequency self-adaptive unit; the self-electricity-taking unit is connected with the lightning arrester in series; the self-electricity-taking unit is used for collecting, rectifying and storing leakage current of the lightning arrester and providing working current for the lightning arrester data acquisition circuit; the sampling frequency self-adaptive unit comprises a microcontroller and a current release loop; and the microcontroller is used for controlling the self-power-taking unit to stop power taking and collecting the voltage on the current release loop when the voltage of the self-power-taking unit reaches a preset value, and controlling the self-power-taking unit to continue power taking after the voltage collection is completed. The lightning arrester is powered by utilizing the inherent leakage current of the lightning arrester, is matched with a low-power consumption monitoring circuit, realizes the acquisition of the leakage current and the lightning stroke frequency of the lightning arrester, and can be maintenance-free for a long time.
Description
Technical Field
The invention relates to the technical field of electrical engineering, in particular to a low-power-consumption self-powered lightning arrester data acquisition circuit and a lightning arrester counter.
Background
Currently, lightning arrester counters mainly comprise a mechanical type counter and a common electronic type counter. The mechanical lightning arrester counter has the advantages of simple structure, no maintenance, low sensitivity, inconvenient data acquisition and the like. The common electronic arrester counter has high sensitivity and accurate counting, can realize remote acquisition and transmission of data, but because secondary equipment isolation needs to be considered, the common electronic arrester counter is generally powered by a battery and cannot be powered by external alternating current, so that the power consumption of the device is larger, and the battery needs to be replaced periodically. In view of this, the present application is specifically proposed.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: the conventional common electronic lightning arrester counter needs to replace batteries regularly and is maintained unchanged. The lightning arrester data acquisition circuit and the lightning arrester counter with low power consumption and self-electricity taking function are provided, the inherent leakage current of the lightning arrester is utilized for power supply, the low power consumption monitoring circuit is matched, the leakage current and the lightning stroke frequency acquisition of the lightning arrester are realized, and the lightning arrester counter can be maintenance-free for a long time.
The invention is realized by the following technical scheme:
in one aspect, a low-power-consumption self-powered lightning arrester data acquisition circuit is provided, which comprises a self-powered unit and a sampling frequency self-adaptive unit; the self-electricity-taking unit is connected with the lightning arrester in series; the self-electricity-taking unit is used for collecting, rectifying and storing leakage current of the lightning arrester and providing working current for the lightning arrester data acquisition circuit; the sampling frequency self-adaptive unit comprises a microcontroller and a current release loop; and the microcontroller is used for controlling the self-power-taking unit to stop power taking and collecting the voltage on the current release loop when the voltage of the self-power-taking unit reaches a preset value, and controlling the self-power-taking unit to continue power taking after the voltage collection is completed.
Further, the self-powered unit comprises a zinc oxide resistor disc VR1, a rectifier bridge D1, a resistor R3, a resistor R4, a MOS transistor Q1, an energy storage capacitor C1 and a zener diode D2; one end of the zinc oxide resistor disc VR1 is connected with the lightning arrester in series, and the other end of the zinc oxide resistor disc VR1 is grounded; the alternating-current pin of the rectifier bridge D1 is connected to two ends of the zinc oxide resistor disc VR1, the output positive electrode of the rectifier bridge D1 is connected with one end of the resistor R4, the other end of the resistor R4 is connected with the source electrode of the MOS tube Q1, the drain electrode of the MOS tube Q1 is connected with the positive electrode of the energy storage capacitor C1, and the negative electrode of the energy storage capacitor C1 is connected with the output negative electrode of the rectifier bridge D1; the grid electrode of the MOS tube Q1 is connected with the microcontroller through a pin P5; the zener diode D2 is connected across the two ends of the energy storage capacitor C1; the microcontroller is connected with the positive electrode of the energy storage capacitor C1 through a VCC pin; one end of the resistor R3 is connected with the grid electrode of the MOS tube Q1, and the other end of the resistor R3 is grounded.
Further, the current release loop further comprises a resistor R1 and a resistor R2; one end of the resistor R1 connected in series with the resistor R2 is connected with the output anode of the rectifier bridge D1, and the other end of the resistor R1 connected in series with the resistor R2 is grounded.
Further, the current release loop further comprises a diode D3; the diode D3 is connected across the resistor R2.
Further, the low-power consumption self-powered lightning arrester data acquisition circuit further comprises a signal latching unit; the signal latching unit is used for latching a lightning signal and circuit reset; the signal latching unit is connected with the sampling frequency self-adapting unit.
Further, the signal latching unit comprises a D trigger U1 and the microcontroller; the pin D of the trigger U1 is connected with the microcontroller through a pin P1, the pin CP of the trigger U1 is connected between the resistor R1 and the resistor R2, and the pin Q of the trigger U1 is connected with the microcontroller through a pin P2; the input of diode D4 is connected to the microcontroller via pin P4.
Further, the microcontroller is further configured to detect a level at a Q pin of the D flip-flop U1, and record a lightning action when the Q pin is detected to be at a high level.
Further, the microcontroller is further configured to latch the low level at the D pin at the Q pin by controlling the pin P1 to output the low level to the D pin and controlling the pin P4 to output the high level to the CP pin after the circuit is powered up, and output the high level to the D pin through the pin P1 before the CP pin receives the next high level.
Further, the signal latch unit further comprises a diode D4, and an output end of the diode D4 is connected with a CP pin of the D flip-flop U1.
On the other hand, provide a low-power consumption from arrester counter of getting electricity, including above-mentioned arrester data acquisition circuit.
Compared with the prior art, the invention has the following advantages and beneficial effects: 1. the self-power-taking unit provides working current for the whole set of circuit, so that external power supply or battery power supply is avoided, and the service life and reliability of the circuit can be improved. 2. The sampling frequency self-adaptive unit can automatically adjust the sampling period of the leakage current according to the magnitude of the leakage current value and the energy storage state of the energy storage capacitor, thereby realizing the maximization of the data acquisition density. 3. The low-power-consumption D trigger circuit is matched with an MCU dormancy timing awakening mechanism to realize low-power-consumption operation; and the D trigger can latch the lightning signals, so that the problem that the MCU is difficult to capture all the lightning signals due to uncertain occurrence time and short duration of the lightning signals can be solved.
Drawings
In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the drawings that are needed in the examples will be briefly described below, it being understood that the following drawings only illustrate some examples of the present invention and therefore should not be considered as limiting the scope, and that other related drawings may be obtained from these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a low-power consumption self-powered lightning arrester data acquisition circuit provided by an embodiment of the invention.
Description of the embodiments
For the purpose of making apparent the objects, technical solutions and advantages of the present invention, the present invention will be further described in detail with reference to the following examples and the accompanying drawings, wherein the exemplary embodiments of the present invention and the descriptions thereof are for illustrating the present invention only and are not to be construed as limiting the present invention.
Example 1: the embodiment provides a low-power-consumption self-powered lightning arrester data acquisition circuit shown in fig. 1. The self-power-taking device comprises a self-power-taking unit, a sampling frequency self-adapting unit and a signal latching unit. The self-electricity-taking unit is connected with the lightning arrester in series, and the signal latching unit is connected with the sampling frequency self-adapting unit. The self-electricity-taking unit is used for collecting, rectifying and storing leakage current of the lightning arrester and providing working current for the lightning arrester data acquisition circuit. The sampling frequency adaptive unit comprises a microcontroller and a current release loop. And the microcontroller is used for controlling the self-electricity-taking unit to stop electricity taking and collecting the voltage on the current release loop when the voltage of the self-electricity-taking unit reaches a preset value, and controlling the self-electricity-taking unit to continue electricity taking after the voltage collection is completed. In order to enable the micro-control unit to stably capture the lightning signal, the circuit is added with a signal latching unit for latching the lightning signal and resetting the circuit.
The specific circuit structures and the working principles of the self-power-taking unit, the sampling frequency self-adapting unit and the signal latching unit are respectively described in detail below.
1. Self-electricity-taking unit: the self-electricity-taking unit comprises a zinc oxide resistor disc VR1, a rectifier bridge D1, a resistor R3, a resistor R4, a MOS tube Q1, an energy storage capacitor C1 and a zener diode D2. One end of the zinc oxide resistor disc VR1 is connected with the lightning arrester in series, and the other end of the zinc oxide resistor disc VR1 is grounded; the alternating-current pin of the rectifier bridge D1 is connected to two ends of a zinc oxide resistor disc VR1, the output positive electrode of the rectifier bridge D1 is connected with one end of a resistor R4, the other end of the resistor R4 is connected with the source electrode of a MOS tube Q1, the drain electrode of the MOS tube Q1 is connected with the positive electrode of an energy storage capacitor C1, and the negative electrode of the energy storage capacitor C1 is connected with the output negative electrode of the rectifier bridge D1; the grid electrode of the MOS tube Q1 is connected with the microcontroller through a pin P5; the zener diode D2 is connected across the two ends of the energy storage capacitor C1; the microcontroller is connected with the positive electrode of the energy storage capacitor C1 through a VCC pin; one end of the resistor R3 is connected with the grid electrode of the MOS tube Q1, and the other end of the resistor R3 is grounded. The self-electricity-taking unit provided by the embodiment is connected with the lightning arrester in series, and the leakage current of the lightning arrester is collected, rectified and stored to provide working current for the whole set of circuit, so that the service life and reliability of the self-electricity-taking unit are improved by avoiding power supply through an external power supply or a battery. Normally, the leakage current of the 10KV lightning arrester is 50-100uA, and the leakage current of the line lightning arrester above 35KV is 0.5mA-2mA. After the circuit is connected to the line lightning arrester, leakage current of the lightning arrester passes through the rectifier bridge D1 to rectify alternating current into direct current. Since the gate of the MOS transistor Q1 is pulled down to the ground by the resistor R3, the MOS transistor Q1 in the default state is in the on state. The current charges the energy storage capacitor C1 through the resistor R4 and the MOS tube Q1, when the voltage at two ends of the energy storage capacitor C1 reaches the reverse breakdown voltage of the zener diode D2, the charging is stopped, the current is released through the bypass of the zener diode D2, the voltage of the energy storage capacitor C1 is stabilized at the reverse breakdown voltage value of the zener diode D2, and the working current is provided for the whole circuit.
2. Sampling frequency self-adaption unit: the current release loop in the sampling frequency adaptive unit is composed of a resistor R1, a resistor R2 and a diode D3. One end of the resistor R1 connected in series with the resistor R2 is connected with the output anode of the rectifier bridge D1, the other end of the resistor R1 connected in series with the resistor R2 is grounded, and the diode D3 is connected across the two ends of the resistor R2. The microcontroller of the sampling frequency adaptation unit employs a timed wake-up mechanism. The microcontroller monitors the VCC voltage at two ends of the energy storage capacitor C1 through the ADC, and if the VCC voltage does not reach a preset value, the microcontroller keeps in a dormant state and waits for the next awakening. If the VCC voltage reaches a preset value, the P5 pin is controlled by the controller to output high level, so that the MOS tube Q1 is cut off, and leakage current is prevented from being shunted during acquisition. At this time, all leakage currents of the lightning arrester are released to the ground through the resistor R1 and the resistor R2, and meanwhile, the microcontroller collects the voltage value VP3 of the point P3 through the ADC, so that the leakage current iq=vp 3/R2 of the lightning arrester can be calculated. Next, after the microcontroller stores or transmits the leakage current data, the microcontroller controls the P5 pin to output a low level, the microcontroller enters a dormant state, and the MOS tube Q1 is conducted to continuously charge the energy storage capacitor C1. The timed wake-up mechanism of the microcontroller can automatically adjust the working period according to the energy storage state of the energy storage capacitor C1 according to the magnitude of the leakage current value, so that the data acquisition density is maximized.
3. A signal latch unit: the signal latch unit includes the D flip-flop U1 and the microcontroller described above. The pin D of the trigger U1 is connected with the microcontroller through a pin P1, the pin CP of the trigger U1 is connected between the resistor R1 and the resistor R2, and the pin Q of the trigger U1 is connected with the microcontroller through a pin P2; the input of diode D4 is connected to the microcontroller via pin P4. The whole set of circuit adopts a leakage current power supply mode, so that the low power consumption requirement is extremely high. If the microcontroller is kept in a normal working state to monitor the lightning signal all the time, the low power consumption requirement cannot be met; if the microcontroller is enabled to monitor the lightning signal in a timed wake-up manner, the low power consumption requirement can be met. However, due to the characteristics of uncertain occurrence time, short duration and the like, the microcontroller is difficult to capture all the lightning signals. Therefore, the circuit enables the microcontroller to stably monitor the lightning signal through the low-power-consumption lightning signal latch circuit. At present, the static current of the D trigger is usually within 1uA, the dormant current of a conventional low-power microcontroller is about 3-5uA, so that the working current of the whole circuit in standby is about 5-6uA, and is far lower than the leakage current of a lightning arrester, and the circuit can stably work for a long time.
(1) Lightning signal monitoring function: when a lightning stroke acts, the lightning stroke voltage breaks down the zinc oxide resistor VR1, and voltage drops are generated at two ends of the zinc oxide resistor VR 1. Because the lightning discharge direction has uncertainty, positive voltage or negative voltage can appear at two ends of the zinc oxide resistor disc VR1, the rectifier bridge D1 has the function of adjusting the polarity of the input voltage, so that the polarity of the output voltage is fixed. The lightning strike voltage is output to a resistor R1 and a resistor R2 for voltage division after passing through a rectifier bridge D1, a zener diode D2 carries out voltage clamping protection, a lightning pulse voltage signal enters a CP pin of a D trigger U1, and a Q pin of the D trigger U1 latches a high-level state of the D pin on a voltage rising edge; therefore, the Q pin will continue to remain stable high even if the lightning signal is lost. When the microcontroller wakes up at regular time, the Q pin is detected to be high level, namely the occurrence of lightning action is indicated, the microcontroller carries out reset operation on the circuit after recording and processing the lightning action, and waits for the next lightning action.
(2) Reset function: in the signal latch unit, the microcontroller is also used to reset the circuit. That is, after the circuit is powered on, the control pin P1 outputs a low level to the D pin, the control pin P4 outputs a high level to the CP pin, the low level at the D pin is locked at the Q pin, and before the CP pin receives the next high level, the high level is output to the D pin through the pin P1. Specifically, after the circuit is powered on, the MCU control pin P1 outputs a low level to the D pin of the D trigger U1, then the microcontroller control pin P4 outputs a high level pulse signal to the CP pin of the D trigger U1, the D trigger U1 detects the rising edge of the level of the CP pin, the Q pin latches the low level signal of the D pin, the Q pin is stable low level and cannot change along with the D pin before the CP pin receives the next high level pulse signal, and the microcontroller outputs a high level to the D pin of the D trigger U1. The circuit reset is completed. After reset, the D pin is high, the Q pin is low, and the CP pin is low.
In summary, the low-power consumption self-powered arrester data acquisition circuit provided by the embodiment realizes the self-powered operation of the circuit by acquiring, rectifying and storing the leakage current of the arrester, avoids the power supply of an external power supply or a battery, and can improve the service life and the reliability of the circuit; meanwhile, the power-taking circuit is disconnected from the sampling circuit through the switch MOS tube, and the sampling precision of leakage current is not affected. On the other hand, the sampling frequency self-adaptive unit can automatically adjust the sampling period of the leakage current according to the magnitude of the leakage current value and the energy storage state of the energy storage capacitor, so that the data acquisition density is maximized. On the other hand, the low-power-consumption D trigger circuit is matched with an MCU dormancy timing awakening mechanism to realize low-power-consumption operation; and the D trigger can latch the lightning signals, so that the problem that the MCU is difficult to capture all the lightning signals due to uncertain occurrence time and short duration of the lightning signals can be solved.
Example 2: on the basis of embodiment 1, this embodiment provides a low-power consumption self-electricity-taking arrester counter, and the arrester data acquisition circuit provided in embodiment 1 is implanted in the arrester counter, so that arrester leakage current and lightning stroke frequency acquisition and transmission can be realized, and long-term maintenance-free work can be realized.
The foregoing description of the embodiments has been provided for the purpose of illustrating the general principles of the invention, and is not meant to limit the scope of the invention, but to limit the invention to the particular embodiments, and any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (10)
1. The lightning arrester data acquisition circuit with low power consumption and self-electricity taking is characterized by comprising a self-electricity taking unit and a sampling frequency self-adaption unit; the self-electricity-taking unit is connected with the lightning arrester in series; the self-electricity-taking unit is used for collecting, rectifying and storing leakage current of the lightning arrester and providing working current for the lightning arrester data acquisition circuit; the sampling frequency self-adaptive unit comprises a microcontroller and a current release loop; and the microcontroller is used for controlling the self-power-taking unit to stop power taking and collecting the voltage on the current release loop when the voltage of the self-power-taking unit reaches a preset value, and controlling the self-power-taking unit to continue power taking after the voltage collection is completed.
2. The low-power-consumption self-powered lightning arrester data acquisition circuit according to claim 1, wherein the self-powered unit comprises a zinc oxide resistor disc VR1, a rectifier bridge D1, a resistor R3, a resistor R4, a MOS transistor Q1, an energy storage capacitor C1 and a zener diode D2; one end of the zinc oxide resistor disc VR1 is connected with the lightning arrester in series, and the other end of the zinc oxide resistor disc VR1 is grounded; the alternating-current pin of the rectifier bridge D1 is connected to two ends of the zinc oxide resistor disc VR1, the output positive electrode of the rectifier bridge D1 is connected with one end of the resistor R4, the other end of the resistor R4 is connected with the source electrode of the MOS tube Q1, the drain electrode of the MOS tube Q1 is connected with the positive electrode of the energy storage capacitor C1, and the negative electrode of the energy storage capacitor C1 is connected with the output negative electrode of the rectifier bridge D1; the grid electrode of the MOS tube Q1 is connected with the microcontroller through a pin P5; the zener diode D2 is connected across the two ends of the energy storage capacitor C1; the microcontroller is connected with the positive electrode of the energy storage capacitor C1 through a VCC pin; one end of the resistor R3 is connected with the grid electrode of the MOS tube Q1, and the other end of the resistor R3 is grounded.
3. The low-power-consumption self-powered arrester data acquisition circuit according to claim 2, wherein the current release loop comprises a resistor R1 and a resistor R2; one end of the resistor R1 connected in series with the resistor R2 is connected with the output anode of the rectifier bridge D1, and the other end of the resistor R1 connected in series with the resistor R2 is grounded.
4. A low power self-powered arrester data acquisition circuit as claimed in claim 3, wherein said current release loop further comprises a diode D3; the diode D3 is connected across the resistor R2.
5. A low power consumption self-powered arrester data acquisition circuit as claimed in claim 3, further comprising a signal latching unit; the signal latching unit is used for latching a lightning signal and circuit reset; the signal latching unit is connected with the sampling frequency self-adapting unit.
6. The low-power consumption self-powered arrester data acquisition circuit as claimed in claim 5, wherein the signal latching unit comprises a D flip-flop U1 and the microcontroller; the pin D of the trigger U1 is connected with the microcontroller through a pin P1, the pin CP of the trigger U1 is connected between the resistor R1 and the resistor R2, and the pin Q of the trigger U1 is connected with the microcontroller through a pin P2; the input of diode D4 is connected to the microcontroller via pin P4.
7. The low power self-powered arrester data acquisition circuit of claim 6 wherein the microcontroller is further configured to detect a level at a Q pin of the D flip-flop U1, and to record lightning action when the Q pin is detected as high.
8. The low power self-powered arrester data acquisition circuit of claim 6 wherein the microcontroller is further configured to latch the low level at the D pin at the Q pin by controlling the pin P1 to output a low level to the D pin and controlling the pin P4 to output a high level to the CP pin after the circuit is powered up, and to output a high level to the D pin through the pin P1 before the CP pin receives the next high level.
9. The low power consumption self-powered arrester data acquisition circuit as claimed in claim 6, wherein the signal latch unit further comprises a diode D4, and an output terminal of the diode D4 is connected to a CP pin of the D flip-flop U1.
10. A low power consumption self-powered arrester counter comprising an arrester data acquisition circuit as claimed in any one of claims 1 to 9.
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| CN202310644631.6A CN116365460B (en) | 2023-06-02 | 2023-06-02 | Low-power-consumption self-powered arrester data acquisition circuit and arrester counter |
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| CN202310644631.6A CN116365460B (en) | 2023-06-02 | 2023-06-02 | Low-power-consumption self-powered arrester data acquisition circuit and arrester counter |
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| CN101581748A (en) * | 2009-06-24 | 2009-11-18 | 西安工程大学 | Zinc oxide arrester on-line monitoring system |
| US20140078622A1 (en) * | 2012-09-17 | 2014-03-20 | Ge Energy Power Conversion Technology Ltd | Circuit breakers |
| CN204142870U (en) * | 2014-10-31 | 2015-02-04 | 南京世都科技有限公司 | A kind of lightning arrester total current and action frequency wireless monitoring device |
| CN108169548A (en) * | 2018-01-29 | 2018-06-15 | 西安神电电器有限公司 | A kind of arrester on-Line Monitor Device |
| CN110824400A (en) * | 2019-09-19 | 2020-02-21 | 杭州群特电气有限公司 | Remote monitoring system and method for lightning arrester discharge counter |
| CN115882435A (en) * | 2022-10-20 | 2023-03-31 | 许继集团有限公司 | Energy dissipation device and energy taking circuit thereof |
| CN115993502A (en) * | 2023-03-07 | 2023-04-21 | 全球能源互联网欧洲研究院 | On-line monitoring device for AC/DC lightning arrester |
-
2023
- 2023-06-02 CN CN202310644631.6A patent/CN116365460B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101581748A (en) * | 2009-06-24 | 2009-11-18 | 西安工程大学 | Zinc oxide arrester on-line monitoring system |
| US20140078622A1 (en) * | 2012-09-17 | 2014-03-20 | Ge Energy Power Conversion Technology Ltd | Circuit breakers |
| CN204142870U (en) * | 2014-10-31 | 2015-02-04 | 南京世都科技有限公司 | A kind of lightning arrester total current and action frequency wireless monitoring device |
| CN108169548A (en) * | 2018-01-29 | 2018-06-15 | 西安神电电器有限公司 | A kind of arrester on-Line Monitor Device |
| CN110824400A (en) * | 2019-09-19 | 2020-02-21 | 杭州群特电气有限公司 | Remote monitoring system and method for lightning arrester discharge counter |
| CN115882435A (en) * | 2022-10-20 | 2023-03-31 | 许继集团有限公司 | Energy dissipation device and energy taking circuit thereof |
| CN115993502A (en) * | 2023-03-07 | 2023-04-21 | 全球能源互联网欧洲研究院 | On-line monitoring device for AC/DC lightning arrester |
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