Puppeteer

Author Topic: electric meter  (Read 327 times)

vegoil

  • Newbie
  • *
  • Posts: 27
    • View Profile
electric meter
« on: September 23, 2018, 06:11:46 PM »
hi can anyone help. I have a Lister start-o-matic I installed a old type electric meter ( the type with the rotateng round disk) to keep track of how many units the were produced and used by punting electric into a storage heater

the problem is that when the meter is connected the auto start fires up the generator even if there no load switched on.

what type of digital meter is suitable I need sump-thing that will record and keep the total units used for years even when there is on power being used.


glort

  • Hero Member
  • *****
  • Posts: 2318
    • View Profile
Re: electric meter
« Reply #1 on: September 24, 2018, 12:55:14 AM »
Quote
I need sump-thing that will record and keep the total units used for years even when there is on power being used.


Fleabay is Full of them:

https://www.ebay.com.au/sch/i.html?_from=R40&_trksid=p2380057.m570.l1313.TR1.TRC0.A0.H0.Xkillowatt+hour+meter.TRS0&_nkw=killowatt+hour+meter&_sacat=0

Don't know they will work too well in sumps, but in a normal atmosphere, should be fine.

vegoil

  • Newbie
  • *
  • Posts: 27
    • View Profile
Re: electric meter
« Reply #2 on: September 24, 2018, 07:32:24 AM »
Thanks I will have a look at them.

ajaffa1

  • Hero Member
  • *****
  • Posts: 796
    • View Profile
Re: electric meter
« Reply #3 on: September 24, 2018, 01:46:00 PM »
Hi Vegoil, I also have an SOM. I would recommend doing what I do. Mine is connected to an electrical distribution board. One fuse in that box is connected to a sixty watt light bulb, this is used to trigger the SOM and get it started. Once it is running I flick on the other breaker switch that feeds power to the domestic fuse board turning on everything else. Fit your meter between the generator breaker and the domestic breaker switches, it will record everything except the 60 watt light bulb. When you need to shut it down, do the reverse; flick the breaker to the main load and then turn off the light switch. Modern electronics do not go well with the 12/24 volt dc sensing circuitry used to start a SOM.

Keep it simple,

Bob

glort

  • Hero Member
  • *****
  • Posts: 2318
    • View Profile
Re: electric meter
« Reply #4 on: September 24, 2018, 03:23:24 PM »

I'm surprised the SOM is sensitive enough to pick up the draw of the meter.  Can't be more than a few watts.
Perhaps a resistor could be put across the sense wire to raise the amount of current needed to trigger a start and run Cycle?

vegoil

  • Newbie
  • *
  • Posts: 27
    • View Profile
Re: electric meter
« Reply #5 on: September 24, 2018, 05:19:23 PM »
I Have sent for a different meter , I am hoping to have the system all automatic.
if anyone is interested I can take a few photos when all up and running.

regards

John

LowGear

  • Casey
  • Hero Member
  • *****
  • Posts: 1942
  • What? My diesel had fries for lunch?
    • View Profile
Re: electric meter
« Reply #6 on: September 24, 2018, 07:00:31 PM »
What about our old friend Kill-A-Watt?
NPR Tipper/Dump Truck
Kubota BX 2230
Witte BD Generator
SunnyBoy 6000 + SolarWorld 245

glort

  • Hero Member
  • *****
  • Posts: 2318
    • View Profile
Re: electric meter
« Reply #7 on: September 25, 2018, 02:34:54 AM »
What about our old friend Kill-A-Watt?

Couldn't be relied on to keep a cumulative count long term. Once the internal batteries go flat, data would be lost.

I don't see that as a big deal myself though.  Just write down where the thing is up to every month or week and you'd have a pretty good idea how much power you had made even when it did reset. Nothing as reliable as pen and paper to me.

I write my daily solar totals down when I am here and also the week, monthly and YTD totals when I remember at the right time.
I some of my inverters I can program to show the value of the power they have made.
Very satisfying like I did on the weekend to punch up the yearly totals and see a setup has produced over twice the value I paid for everything ( less wiring) in 7 Months.

vegoil

  • Newbie
  • *
  • Posts: 27
    • View Profile
Re: electric meter
« Reply #8 on: September 28, 2018, 02:53:13 PM »
photo of new meter the analogue one, the one to the far left. it works good.
« Last Edit: September 28, 2018, 02:56:08 PM by vegoil »