Discussion Board

Syndicate content
Live information from Fieldlines.com: The Otherpower discussion board
Updated: 39 min 46 sec ago

Re: Voltage Rensing Relay Config - could use some help

39 min 32 sec ago
This is older post, but I realized that I never followed up on it.

QuoteI wonder though, from what you describe, if your relay is on the blink. It just doesn't sound right, and doesn't jive with what I've seen with the Omron relay...
Rob was ...

Re: 3 Phase/Wild AC Wiring Question

1 hour 24 min ago

Welcome to the forum.  If you're running 3-phase from the turbine you will need three conductors.

You also didn't mention the voltage of the system.  If it is a 12V system, and 1,600w, you're looking at near 90 amps; at 24V it'd be near 46 am...

Re: gizmo, F&P, caps

1 hour 32 min ago
A discussion on a 36-pole stator can be found at the following:

Re: 3 Phase/Wild AC Wiring Question

1 hour 57 min ago
Just keep in mind that you need some flexibility connecting the turbine to your solid wiring.

Re: best way to wire 4 solar panels

3 hours 18 min ago
Thanks for that Brian, I think I will stick to 24v for now as what you said made a lot of sense, truck bits and pieces I did,nt think of that one. I will be looking at a grid tie system around 4kw,a mate bought one on e-bay for £2500, £1000 for fitting...

Re: 3 Phase/Wild AC Wiring Question

5 hours 15 min ago
The reason for multystrand wire is because low voltage dc is used in vehicles where vibration can cause solid wires to flex and break. In non moving locations it is fine to use solid wires.

3 Phase/Wild AC Wiring Question

9 hours 6 min ago
Hi, I am new to wind energy and am planning my first install.  I have purchased a 1600 watt turbine which produces 3 phase AC.  I am wondering if it is OK to use solid wire to bring the wild AC to the house where I will be installing the Rectifier and ...

Re: Reducing power in high winds

Mon, 11/24/2014 - 18:05
if you want to reduce power in higher winds, there are two choices,... or a combination of the two.

1) lower feedline resistance in higher wind to stall blades more when you want to.

2) make sure your side furling is working properly (it seems like it ...

Re: A Little Advice

Mon, 11/24/2014 - 17:57
Good advice, Thanks Jon. I just picked up a kill-a-watt today so I can get an exact reading on my power usage. Then I'll get a better idea of my total Kwh usage per day and like you said you'll just get a better idea of what the batteries are doing.

Re: A Little Advice

Mon, 11/24/2014 - 13:07
You can get a battery bank tracker. They do drift off over time and then you reset it.

What I do is I have delveloped a feel for how fast my batteries charge. So if I turn on the genny and the volts stay low (13 volts or so) they are really hungry. If ...

Re: Turbine current control using a buck converter.

Sun, 11/23/2014 - 20:26
The MC34063 board failed, and I think it was the controller chip.  My guess as to what happened:  a low frequency (500 Hz) PWM was turning the MC34063 on and off with a varying duty cycle.  Every time the chip would be "on" it would run right up to it'...

Re: Battery Bank Configuration Help

Sun, 11/23/2014 - 20:13
Quote from: archerpalms on November 23, 2014, 04:33:02 PMDid you make the bar and connections yourself?

I bought a 4m length of 32x4.7mm (5mm nominal) strip. Can't remember how much it was but it was a lot less than t...

Re: Battery Bank Configuration Help

Sun, 11/23/2014 - 19:58
Quote from: archerpalms on November 23, 2014, 04:33:02 PMDid you make the bar and connections yourself?
do an ebay search for scrap copper and you will be seriously disturbed by the amount of copper that has obviously...

Re: Battery Bank Configuration Help

Sun, 11/23/2014 - 17:33
Did you make the bar and connections yourself?

Re: A Little Advice

Sun, 11/23/2014 - 16:21
QuoteHow do you all keep track?
i don't really.  i bought a cheap chinese back lite digital volt meter that is hooked to the bank.  you can get a pretty good idea of state of charge by glancing at it.  i leave it on all the time while i'm us...

Re: best way to wire 4 solar panels

Sun, 11/23/2014 - 14:15

I am in the UK and looking for low voltage lamps etc I found there is a ruck of 24V stuff for trucks and buses. So I would stick with 24V. Having said that MPPT on 48 is more efficient, and if you were looking at grid tie or a 240V system from an in...

Re: best way to wire 4 solar panels

Sun, 11/23/2014 - 11:20
Hello Bruce, thanks for the reply, the controller I have at the moment is an MPPT 24v 380w 40a, the panels are connected in parallel at present. I have 3 24v pond pumps working 24/7 each taking about .3a so just under an amp an hour, led lights in the ...

Re: Steam turbine generator question

Sun, 11/23/2014 - 08:44
I was hoping we could revisit this discussion on diy micro turbines from commonly available parts sourcing.

Suppose the steam were generated from a biomass furnace to make that end of it simple.  i have no comprehension at all of the math here.  What k...

Re: A Little Advice

Sat, 11/22/2014 - 21:01
Nice to hear from someone who isn't afraid of a little math.  Yes that will be enough to get you familiar with the needs and the current status of the battery bank.
If you can sort out the capacity of the batteries in Amp-hours, then you can also do so...

Re: GE ECM motor to generator questions

Sat, 11/22/2014 - 19:57
Thank you Bob... I have tried those configurations but it helps to see a clear drawing of them... I have given up on the ECM for my vawt application... It seems I need cut in before 100 rpm and it's just not feasible with the ECM,s...
Shifting gears......