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Hilo90mhz

Electronics and other complex systems of interest to Chester Lowrey

Storeroom Humidity

Storeroom Humidity

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Energy , Power Monitoring , Raspberry Pi , UncategorizedPosted on: 2018-10-132018-10-13
Hydroelectric Turbine Development

Hydroelectric Turbine Development

Hose testing, this is 1.5″ Goodyear EP Plicord Flexwing Black Nitrile Rubber fuel hose rated for 150PSI WP. It will work […]

Energy , HydroelectricPosted on: 2018-03-182018-07-23
Plastic Case 85x58x33mm KH-F19 Dimensions

Plastic Case 85x58x33mm KH-F19 Dimensions

These 85x58x33mm cases can be inexpensively sourced from many locations. However I could find no data on the hole layout […]

Electronics , Power Monitor , Power MonitoringPosted on: 2016-10-062016-12-01
Testing ST7735 128*160 SPI TFT Display

Testing ST7735 128*160 SPI TFT Display

I’d say it works well 🙂 very happy, using the ucglib graphics library. It has advantages compared to the adafruit […]

Electronics , Power MonitoringPosted on: 2016-10-042016-10-04
Lightning Arresters, MOVs, Surge Suppression

Lightning Arresters, MOVs, Surge Suppression

The following are large 3 lead MOV’s that include a thermal fuse – this fuse will prevent thermal runaway on […]

Energy , Power MonitoringPosted on: 2016-10-022016-10-02
Testing Current Transformers

Testing Current Transformers

V1 120.55 V1 avg 120.51 CT1 A 3.72 CT1 VA 448.61 CT1 W 357.18 avg 343.68 CT2 A 3.68 CT2 […]

Energy , ESP8266 , Power MonitoringPosted on: 2016-10-022016-10-03
Remote Power Monitoring system AC or DC current measurements

Remote Power Monitoring system AC or DC current measurements

Cloud IOT Hosting / Storage Options Looked at in initial exploration of subject: Example: http://www.openhomeautomation.net/cloud-temperature-logger-esp8266/ Github for above project: http://github.com/openhomeautomation/esp8266-cloud http://dweet.io/ http://www.freeboard.io/ http://bsautner.github.io/com.nimbits/ – […]

Energy , Power MonitoringPosted on: 2016-03-192016-10-03
Air Vacuum Relief Valve for Micro Hydro Electric Systems

Air Vacuum Relief Valve for Micro Hydro Electric Systems

Quite often in a micro hydro system you may have a section of pipe that is not at a perfect […]

HydroelectricPosted on: 2016-03-182016-03-18
Harris Hydroelectric Turbine 48V – Rebuilding Bearings and Replacing Turbine

Harris Hydroelectric Turbine 48V – Rebuilding Bearings and Replacing Turbine

 

Energy , HydroelectricPosted on: 2015-12-132015-12-18
DC Power Meter 100A 100V Teardown

DC Power Meter 100A 100V Teardown

I wanted to see if it was possible to modify this dual meter to accept a different shunt mv rating […]

Electronics , EnergyPosted on: 2015-12-132015-12-22
Hydroelectric Power Monitor 3D Printed and Laser Cut Box

Hydroelectric Power Monitor 3D Printed and Laser Cut Box

         

Energy , HydroelectricPosted on: 2015-12-012015-12-14
Dans Switch Box – for lights and 12v to 19V Laptop boost converter

Dans Switch Box – for lights and 12v to 19V Laptop boost converter

3D Printing , Electronics , EnergyPosted on: 2015-07-182015-12-24

Kauai Island Utility Co-op CEO Explains how Utility Co-ops work at Hawaiʻi Island event

EnergyPosted on: 2014-12-20

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