Table of Contents
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Symbols used by the instrument:
Symbol
Definition
AC and DC components.
~
AC component only.
DC component only.
Inductive phase shift.
Capacitive phase shift.
°
Degree.
-.+
Expert mode.
|
|
Absolute value.
Sum of values.
Σ
%
Percentage.
%f
Fundamental value as reference.
%r
Total value as reference.
Φ
or
VA
Phase shift of voltage with respect to current.
Φ
UA
A
Current; also Ampere (unit).
A-h
Current harmonic.
Acf
Crest (peak) factor of current.
Ad
RMS distortion current.
Adc
DC current.
Apk+
Maximum peak value of current.
Apk-
Minimum peak value of current.
Arms
True RMS current.
Athdf
Total harmonic distortion of current in %f.
Total harmonic distortion of the current with
Athdr
the total RMS value without DC as reference.
Aunb
Negative-sequence current unbalance rate.
AVG
Mean value (arithmetic mean).
CF
Peak factor (current or voltage).
Cosine of the phase shift of voltage with
cos Φ
respect to current (DPF – fundamental
power factor or displacement factor).
D
Distortion power.
DC
DC component (current or voltage).
Dh
Distortion energy.
DPF
Displacement factor (cos Φ).
FHL
Harmonic loss factor.
FK
K factor.
Hz
Frequency of network.
L
Channel (Line).
MAX
Maximum value.
MIN
Minimum value.
ms
Millisecond.
Symbol
Definition
N
Non-active power.
Nh
Non-active energy.
P
Active power.
Pdc
DC power.
Pdch
DC energy.
Maximum (+) or minimum (-) peak instantaneous
PEAK or PK
value of the signal.
PF
Power factor.
Ph
Active energy.
PLT
Long-term flicker.
PST
Short-term flicker.
Q
Reactive power (fundamental).
1
Q
h
Reactive energy (fundamental).
1
RMS
True RMS value (current or voltage).
S
Apparent power.
S-h
Apparent harmonic power.
Sh
Apparent energy.
t
Relative date of time cursor.
Tangent of the phase shift of voltage with respect to
tan Φ
current.
THD
Total harmonic distortion (in %f or in %r).
U
Phase-to-phase voltage.
U-h
Phase-to-phase voltage harmonic.
Ucf
Phase-to-phase voltage crest factor.
Ud
Phase-to-phase RMS distortion voltage.
Udc
Phase-to-phase DC voltage.
Upk+
Maximum peak value of phase-to-phase voltage.
Upk-
Minimum peak value of phase-to-phase voltage.
Urms
True RMS phase-to-phase voltage.
Uthdf
Total phase-to-phase voltage harmonic distortion in %f.
Uthdr
Total phase-to-phase voltage harmonic distortion in %r.
Negative-sequence phase-to-phase voltage
Uunb
unbalance rate.
V
Phase-to-neutral voltage; also Volt (unit).
V-h
Phase-to-neutral voltage harmonic.
Vcf
Voltage crest (peak) factor.
Vd
Phase-to-neutral RMS distortion voltage.
Vdc
Peak factor of the phase-to-ground voltage.
Maximum peak value of the phase-to-neutral
Vpk+
voltage.
Vpk-
Minimum peak value of the phase-to-neutral voltage.
Vrms
True RMS phase-to-neutral voltage.
Total harmonic distortion of phase-to-neutral voltage
Vthdf
in %f.
Total harmonic distortion of phase-to-neutral voltage
Vthdr
in %r.
Negative-sequence phase-to-ground voltage
Vunb
unbalance rate.
18
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