A1
Appendix
Appendix
Appendix 1 Fundamental Measurement Items
Item Display Item Display
Transient voltage Tran Power factor PF
Frequency (1 wave) Freq_wav Displacement power factor DPF
RMS voltage refreshed each half-
cycle
Urms1/2
Harmonic voltage
(0th to 50th order harmonics)
Uharm
RMS current refreshed each half-
cycle (Inr
ush current)
Irms1/2(Inrush)
Harmonic current
(0th to 50th order harmonics)
Iharm
Swell Swell
Harmonic power
(0th to 50th order harmonics)
Pharm
Dip Dip
Harmonic voltage phase angle
(1st to 50th order harmonics)
Uphase
Interruption Intrpt
Harmonic current phase angle
(1st to 50th order harmonics)
Iphase
Instantaneous flicker value Pinst
Harmonic voltage-current phase
difference
(1st to 50th order harmonics)
Pphase
Frequency (10 s) Freq10
Total harmonic distortion
(THD-F/THD-R) (voltage)
Uthd
(Uthd-F or Ut
hd-R)
Interharmonic voltage Uiharm
Total current harmonic distortion
(cur
rent) (THD-F/ THD-R)
Ithd
(Ithd-F or It
hd-R)
Interharmonic current Iiharm
Voltage negative-phase
unbalance factor
Uunb
Frequency (200 ms) Freq
Voltage zero-phase unbalance
factor
Uunb0
Voltage waveform peak+ Upk+
Current negative-phase unbal-
ance factor
Iunb
Voltage waveform peak- Upk-
Current zero-phase unbalance
factor
Iunb0
Current waveform peak+ Ipk+ K factor KF
Current waveform peak- Ipk- Short-term voltage flicker Pst
RMS voltage (phase/line) Urms Long-term voltage flicker Plt
Voltage DC Udc ΔV10 (Every 1 min.) dV10
RMS current Irms ΔV10 (Average hourly value) dV10 AVG
Current DC Idc ΔV10 (Maximum hourly value) dV10 MAX
Active power P ΔV10 (4th. maximum hourly value) dV10 MAX4
Apparent power S ΔV10 (Overall maximum value) dV10 total MAX
Reactive power Q
High-order harmonic voltage
co
mponent
UharmH
Active energy (Consumption) WP+
High-order harmonic current
co
mponent
IharmH
Active energy (Regeneration) WP- Voltage waveform comparison Wave
Reactive energy (Lag) WQLAG Efficiency Eff1,Eff2
Reactive energy (Lead) WQLEAD
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