3-phase power instead of voltage for P1 smart meter

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McWil
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Joined: Sunday 29 July 2018 22:07
Target OS: Raspberry Pi
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3-phase power instead of voltage for P1 smart meter

Post by McWil » Tuesday 31 July 2018 17:07

Domoticz nicely detects new smart meters using DSMR 4.x protocol and provides 5 devices, power, gas and 3x voltage. It would be much more useful to register (and graph) the power usage of the three phases (that are also in the P1 telegram) rather than the three voltages. Should be relatively easy to change when parsing the P1 telegram...?

Martijn

pwhooftman
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Joined: Monday 11 November 2013 19:04
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Re: 3-phase power instead of voltage for P1 smart meter

Post by pwhooftman » Wednesday 01 August 2018 2:22

power usage isn't measureable per phase in a 3 phase system. The power usage is formed by the 3 phases combined, because the sine waves of each phase is 120 degrees shifted from the other phases.
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