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Forum Index : Microcontroller and PC projects : Mains monitor in action
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TassyJim Guru  Joined: 07/08/2011 Location: AustraliaPosts: 6098 |
My disturbance recorder has been sitting on the desk in a half finished state for a while now. Today was it's day to shine. We are having some severe electrical storms passing by. The closest strike I recorded on the lightning detector system was 0.8kM away in a neighbours spud paddock. The picomite recorder was ready and this is one of the 'disturbances' recorded.  So far, all the micromites and picomites have survived but there is a few more hours of storms to go. Jim VK7JH MMedit MMBasic Help |
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| Volhout Guru Joined: 05/03/2018 Location: NetherlandsPosts: 4238 |
Nice recording... But for your equipment not harmfull. Maybe at the neighbours house it is more dramatic... You can clearly see where equipment switches off. Volhout PicomiteVGA PETSCII ROBOTS |
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phil99 Guru Joined: 11/02/2018 Location: AustraliaPosts: 2135 |
A textbook recording! At cycle 5 you can see where the HV surge diverters have blown and are now are now dragging the line volts down about 10%, till the MCB trips or HV fuses blow. Then 2 to 3 cycles of arc quenching. Edited 2023-12-14 06:35 by phil99 |
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| DaveJacko Regular Member  Joined: 25/07/2019 Location: United KingdomPosts: 76 |
could I ask how Jim got such a nice graph .png from your Pico ? I've thought about using GFXterm then take a screenshot, (excellent GFXterm does not seem to work with the picomite edit.. for me anyway) I tried to write a minimal graphic terminal with PureBasic, (it's too difficult or I'm too dumb ) ..interesting post, thanks all! |
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| TassyJim Guru Joined: 07/08/2011 Location: AustraliaPosts: 6098 |
This graph was compliments of Excel. The data was saved to a file on the pico then I download the events at leisure and drop the data into an excel spreadsheet. I usually start with excel and then, once I have the data collection right, put it into a purpose built program (PureBasic) In the disturbance recorder, the end result will include the ability to step through the data a page at a time using the LCD display. Jim VK7JH MMedit MMBasic Help |
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| TassyJim Guru Joined: 07/08/2011 Location: AustraliaPosts: 6098 |
Another disturbance from the same 18 hours of storm cells.  Jim VK7JH MMedit MMBasic Help |
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| phil99 Guru Joined: 11/02/2018 Location: AustraliaPosts: 2135 |
A brief dip like that could be a stick blown across the line. |
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| Volhout Guru Joined: 05/03/2018 Location: NetherlandsPosts: 4238 |
Neutral gene, 3 phasa unbalance, Someone else tot 300 volt. 60ms. Part of theorie disconnected. Volhout PicomiteVGA PETSCII ROBOTS |
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