kWh meter (S309.2) tariff changeover

Day-Night rate changeover via Landis&Gyr time clock, for Sangamo S309.2 kWh meter.
This is actually a 1 phase CT meter driven via a 50/5 Amp current transformer.

Category:

Science & Technology

Tags:

• kWh
• watthour
• 2_rate
• day-night
• S309.2
• contatore
• compteur
• de
• electrique
• zähler
• kilowatturen
• meter

[realvanman1]

Wow, a mechanical time of use meter- that's really cool! I assume it uses frequency of the line as it's time base, but how is it initially set? (and after a power failure)

[RODALCO2007]

@realvanman1 The time clocks have a 24 hour spring reserve in case of a power cut. or the tariff signal gets sent through the lines via a ripple transmitter and receiver by the meter.

[HoneycombAgent]

What's the deal about tariff time switches and what does it have to do about electric meters and measuring electric usage?

[RODALCO2007]

@HoneycombAgent In NZ there is a cheaper tariff overnight between the hours of 2300 and 0700 hrs.

[elektro666tech]

Nice meter, and nice time switch :-) I have also few time switchs, maybe I'll make video with them :-) Does you have any electricity meter, or time switch from Poland ? Pafal, or Metron ?

[RODALCO2007]

@elektro666tech No, I have heard of PAFAL, you see them sometimes on ebay ( postage is very expensive)

Metron, never heard off.

I have one Russian meter with Cyrillic nameplate.

Your English is very good

[G4MOF]

@hitachi088 It would probably stop the change over it's sent on the Long Wave frequency..

[hitachi088]

@G4MOF what happend if you tinfoil it, or in anyway block the signal?

[elektro666tech]

@RODALCO2007, PAFAL produced electricity meters, Metron time switchs :-)

Your Landis & Gyr timeswitch is very nice, it is very sad that now Landis & Gyr produce only electronic electricity meters, these meters does not even look like electricity meter, more likely like a calculator without keyboard :D

[RODALCO2007]

Thanks for your comment. This meter is controlled by a Landis&Gyr timeswitch.

We have these meters also controlled via the ripple system in the city network.