ADE7758 xWATTHR Measurement:

Hello All,

I have communicated with ADE7758 with my Host MCU.

SPI Works fine and to Read/Write Default Values. From HOST ADE7758 to Host MCU.

I am giving 0 to +/- 500mV to Voltage  and 0 to  +/- 500mV to Current channel(s)

And able to read xVRMS and xIRMS resgiter.

I have able to read xWATTHR with

1) LCYCMODE Register  , RSTREAD =1 Default Mode

2) LCYCMODE Register  , RSTREAD =0, LWATT = 1 and LINECYC  = 0x10.

But I am unable to understand ..

1)How to Convert xWATTHR in to real Watt. With Line Accumulation or With RSTREAD in Default.

2) Or If suppose, AVRMS = 0x1243412 and AIRMS = 0xCBCD12. What should be in AWATTHR Register.

--

Thanks..

Parents
  • I want to measure Power factor of each phase ,(+ Total Power factor) with other  Electrical quantity..

    Any other ADE part no.?

    Ideally, in a 3-phase system, PF is the same on all phases.
    Total Power Factor is important when power semiconductors are employes in the system. What you might be looking for are information on phase delay, amplitude and harmonic components (THD) of the input signals. In this case, ADE7880 and ADE9000 could be good candidates for your application.  Which other electrical quantities do you want to measure?

Reply
  • I want to measure Power factor of each phase ,(+ Total Power factor) with other  Electrical quantity..

    Any other ADE part no.?

    Ideally, in a 3-phase system, PF is the same on all phases.
    Total Power Factor is important when power semiconductors are employes in the system. What you might be looking for are information on phase delay, amplitude and harmonic components (THD) of the input signals. In this case, ADE7880 and ADE9000 could be good candidates for your application.  Which other electrical quantities do you want to measure?

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