måndag 30 oktober 2017

What kind of fuse block holder is appropriate.

What kind of fuse block panel is appropriate for your solar or windproject?. Lets have a look.


Fuse Box 6-Way Block Holder Circuit Fuse Box with Cover for Auto Vehicle Car Truck Boat Marine Maximum.

I think this will do fine. Cost about 15 dollars


This one is more expensive, it cost 725 SEK here in Sweden

fredag 13 oktober 2017

NEMA 23 Step Motor used as micro wind turbine generator

This stepper motor is a brushless engine with two phases. Check this video out. Made by belgrademashine




Here is a link to a datasheet with Nema 23 design
http://www.ostergrens.se/upload/OE%20Motors/nema23st.pdf

Monitoring the power going in and from the battery, Wattmeter and battery capacity and so on, is this what you need?

Thinking about getting something for my Solar Panel setup. Something that can measue current and voltage the both way, discharging and charging. Think this might do the trick. Only negative is that the two parts draws pretty much power, about 0,5 watt each if I understand correctly.

This is the unit:
Minghe VAC-1030A, DC 120V 30A Wireless
Digital Current Voltmeter Ammeter Watt Battery Capacity Power Energy Combo Multimeter.

The best feature compared to other more simple wattmeter is the bidirectional current detector for detecting the charging and discharging of the user can easily detect bidirectional current without changing the wiring.

You can communicate for max 10 wireless or use a standard USB cable for wired communication to the display unit.

Screenshot


Minghe VAC-1030A, DC 120V 30A Wireless
Minghe VAC-1030A, DC 120V 30A Wireless

It uses a 30 amp relay to cut the power when overcurrent protection, overvoltage protection, undervoltage protection and so on.

Julian Ilett has made a great video showing some of its features.

Ming He 120V 30A Wireless Power Monitor






 This is another version Minghe VAC-1100, this uses only another approach, without the a normlal relay.I think it can take 100Amps..








 There are different version, the biggest can take on 300 amps. And is called MingHe Vac-1300.

The 300 amp version: Minge VAC-1300A
The 300 amp version: Minge VAC-1300A
Solid connectors and shunt.
However usually the accuracy declines when you get a bigger shunt. So I would choose the one nearest where I will measure. For me I think this range is 0-30amps since I wont be starting my car with this thing connected between the battery and other sources.


It can take more ampere.



Here a video showing 180 amp going thru it!




Or you could buy something like the CTEK System monitor, but I guess it only measures the servicebatteries.

CTEK System monitor
CTEK System monitor

torsdag 12 oktober 2017

Solar panel connector, MC4, Battery connectors and more

Today we are looking at connector for Solar Panel use..

The MC4 is the most common connector for Solar Panels of 100 Watt size.

10Pairs x MC4 Connector male and female, MC4 Solar Panel Connector 30A 1000V for PV cable 2.5/4/6mm solar panel connect
MC4 Connector male and female











Anderson Connectors for connecting to batteries. Where no load more than 50A..

Anderson Connectors

Here I'm using a cheaper connector when trying out the Solar panel.