I have extended the 3-phase PLL sketch to cover now a 3-wire (no neutral) system as well as the 4-wire (with neutral) system.
In the 3-wire setting, one phase is treated as the neutral, and the system then collapses into a 2-phase system with the second phase lagging 60° behind the “reference” phase, the a.c. adapter being connected line 1 – ‘neutral’ phase. In this configuration, the two phase “powers” are meaningless, only the total power (real and apparent) is a valid physical quantity so the total power is reported as “power1”, and “power2” is always zero.
The principal changes are:
- A switch to set 3-wire or 4-wire,
- Each c.t. can now be allocated to any phase.
MD5 Hashes:
| emonTx_3Phase_PLL_V1.4.zip | f6f0fd4e57290ed985f23596e1f55bc0 |
| emonTx_3Phase_PLL.ino | c8e684a2549cde41629f2db205794b45 |
| config.ino | ae9cc9c91f67ed3a6b47e49cc1f47b32 |
| rfm.ino | 44a0b048b14e5e013625809736853c57 |
| emonTx 3-phase PLL User Doc.pdf: | c18387136424b903cdf49366f30fde9b |
Extract the directory “emonTx_3Phase_PLL” and put it in your “sketches” folder. You can put the documentation where you wish.
This version is now obsolete – see post no.13 below.