CN204086383U - A kind of lightning arrester on-Line Monitor Device with clock - Google Patents
A kind of lightning arrester on-Line Monitor Device with clock Download PDFInfo
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- CN204086383U CN204086383U CN201420542578.5U CN201420542578U CN204086383U CN 204086383 U CN204086383 U CN 204086383U CN 201420542578 U CN201420542578 U CN 201420542578U CN 204086383 U CN204086383 U CN 204086383U
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- chip
- clock
- mcu controller
- lightning arrester
- directionally connected
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Abstract
The utility model discloses a kind of lightning arrester on-Line Monitor Device with clock, comprise MCU controller, clock chip, recombination current sensor, storage chip and power module; Described clock chip, by powered battery, is bi-directionally connected crystal oscillator to drive simultaneously; Described clock chip is bi-directionally connected MCU controller; Described recombination current sensor has first passage and second channel, and first passage connects comparer chip by an operational amplifier, and second channel is by another operational amplifier connection mode number converter chip; Described comparer chip and analog to digital converter chip are all connected to MCU controller; Described MCU controller is powered by power module, and is bi-directionally connected storage chip and 485 communication modules.The time that the utility model provides lightning arrester to be struck by lightning by clock chip, the lightning strike information that lightning arrester terminal is received and current information have the concrete time, can the working condition of monitor lightning arrester more.
Description
Technical field
The utility model belongs to electricity monitoring apparatus field, particularly a kind of lightning arrester on-Line Monitor Device with clock.
Background technology
Lightning arrester is a part indispensable in electric system, and its effect is used to protect the electrical equipment that in electric system, various electric equipment impacts from lightning surge, switching overvoltage, Frequency Transient Overvoltage and damages.Lightning arrester bears power-frequency voltage, the effect of the thunderbolt factor such as surge voltage and internal wetted and aging or deteriorated gradually at work for a long time; its insulation characterisitic is destroyed; show as resistive Leakage Current to increase; cause thermal runaway; serious caused lightning arrester is blasted; other electrical equipment will lose overvoltage protection simultaneously, directly affect the safe operation of electric system.Therefore, as one of the visual plant of electric system, be necessary to monitor it.Existing lightning arrester on-Line Monitor Device can the number of lightning strokes that is subject to of Real-Time Monitoring lightning arrester and current value, but cannot record the time of being struck by lightning, and cannot extrapolate the rate of change of frequency and the current value be struck by lightning.
Summary of the invention
The purpose of this utility model is to solve the problem, and provides a kind of and real time record can be subject to the lightning arrester on-Line Monitor Device with clock of thunderbolt time.
For this reason, the technical solution of the utility model is: a kind of lightning arrester on-Line Monitor Device with clock, is characterized in that: it comprises MCU controller, clock chip, recombination current sensor, storage chip and power module; Described clock chip, by powered battery, is bi-directionally connected crystal oscillator to drive simultaneously; Described clock chip is bi-directionally connected MCU controller; Described recombination current sensor has first passage and second channel, and first passage connects comparer chip by an operational amplifier, and second channel is by another operational amplifier connection mode number converter chip; Described comparer chip and analog to digital converter chip are all connected to MCU controller; Described MCU controller is powered by power module, and is bi-directionally connected storage chip and 485 communication modules.
Recombination current sensor of the present utility model exports lightning strike signals and current signal respectively to two operational amplifiers, and lightning strike signals is by being sent on MCU controller after comparer chip, current signal is by being sent on MCU controller after analog to digital converter chip; Clock chip is under the driving of 32.768Khz crystal oscillator simultaneously, provides clock signal to MCU controller.The time that the utility model provides lightning arrester to be struck by lightning by clock chip, the lightning strike information that lightning arrester terminal is received and current information have the concrete time, can the working condition of monitor lightning arrester more.
Accompanying drawing explanation
Be described in further detail below in conjunction with accompanying drawing and embodiment of the present utility model.
Fig. 1 is circuit block diagram of the present utility model.
Embodiment
See accompanying drawing.The present embodiment comprises MCU controller, DS1302 clock chip, recombination current sensor, comparer chip, analog to digital converter chip, storage chip, 485 communication modules and power module; Described DS1302 clock chip, by powered battery, is bi-directionally connected 32.768Khz crystal oscillator to drive simultaneously; Described DS1302 clock chip is bi-directionally connected MCU controller by I/O mouth, the SCLK end of MCU controller unidirectional connection DS1302 clock chip and RESET end; Described recombination current sensor has first passage 1 and second channel 2, and first passage 1 connects comparer chip by an operational amplifier, and second channel 2 is by another operational amplifier connection mode number converter chip; Described comparer chip and analog to digital converter chip are all connected to MCU controller; Described MCU controller is powered by power module, and is bi-directionally connected storage chip and 485 communication modules.
The recombination current sensor of the present embodiment exports lightning strike signals by first passage 1 to an operational amplifier, lightning strike signals is by being sent on MCU controller after comparer chip, recombination current sensor is by second channel 2 to another operational amplifier output current signal, and current signal is by being sent on MCU controller after analog to digital converter chip; Clock chip is under the driving of 32.768Khz crystal oscillator simultaneously, provides clock signal to MCU controller.
Claims (1)
1. with a lightning arrester on-Line Monitor Device for clock, it is characterized in that: it comprises MCU controller, clock chip, recombination current sensor, storage chip and power module; Described clock chip, by powered battery, is bi-directionally connected crystal oscillator to drive simultaneously; Described clock chip is bi-directionally connected MCU controller; Described recombination current sensor has first passage and second channel, and first passage connects comparer chip by an operational amplifier, and second channel is by another operational amplifier connection mode number converter chip; Described comparer chip and analog to digital converter chip are all connected to MCU controller; Described MCU controller is powered by power module, and is bi-directionally connected storage chip and 485 communication modules.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420542578.5U CN204086383U (en) | 2014-09-22 | 2014-09-22 | A kind of lightning arrester on-Line Monitor Device with clock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420542578.5U CN204086383U (en) | 2014-09-22 | 2014-09-22 | A kind of lightning arrester on-Line Monitor Device with clock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204086383U true CN204086383U (en) | 2015-01-07 |
Family
ID=52179084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420542578.5U Active CN204086383U (en) | 2014-09-22 | 2014-09-22 | A kind of lightning arrester on-Line Monitor Device with clock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204086383U (en) |
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2014
- 2014-09-22 CN CN201420542578.5U patent/CN204086383U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |