Functions
3.2 Energy Metering
SICAM P37, 3-phase Harmonic Power Meter, User Manual
E50417-H8940-C563-
4
, Release Date
06.2018
15
• Current K coefficient K
f
of each phase, an critical index measuring current quality
where, I
h
- effective value of No. h harmonic current (RMS); k - range 1 to 50, configurable with commu-
nication, factory default 50.
• Telephone harmonic form factor (THFF) of each phase Harmonic interference will generate communication
system noise, reducing quality of connection. Consultative Committee of International Telephone and Tele-
graph (CCITT) measures harmonic interference to telecommunication using weight coefficient P
h
of noise,
expressed with THFF.
where, P
h
- weight coefficient of noise.
3.2
Energy Metering
This meter can meter various energy data:
• combined active energy
• combined reactive and four-quadrant reactive energy
• total fundamental active power and total harmonic active energy
• supply active energy of each phase, combined reactive energy of each phase, fundamental active energy
and harmonic active energy of each phase