Can anyone explain to me how an electricity meter switches between to different charge rates, as with Ecco7 in the UK, I believe its something to do with contactors?
Any ideas
Will
Can anyone explain to me how an electricity meter switches between to different charge rates, as with Ecco7 in the UK, I believe its something to do with contactors?
Any ideas
Will
You talking 'electro-mechanical' or 'electronic'?
Seen quite a few electronic ones. They have an internal clock and simply totalize the kWhr into two different 'registers' based on time-of-day. Both are measured by the 'meter-reader' and then billed accordingly.
Another technique for high-usage has been to record peak-power and total demand every 15 minute interval with a 'timestamp' supplied by an internal clock. Then the meter 'phones-home' every week or two, downloading all its recorded data directly to the utility's computer system. These require a dedicated phone line for the meter, typically not your residential service.
(these are US techniques, don't know in UK)
daestrom
PolyTech Forum website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.