Harmonic
Measurement Function
Copyright © Itech Electronics Co., Ltd.
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the list of harmonic measurement results will be displayed. This list is used
for showing the voltage, current, active power, reactive power, phase and
total harmonic distortion (THD) factor of different harmonics. Harmonic lists
can be displayed in the whole sequence, odd sequence and even
sequence. Below is a whole-sequence harmonic list.
Harmonic content: this list is used for showing all harmonic contents of
single-order harmonics, including the voltage, current and power. You can
view other harmonic parameters by operating the Left/Right key to turn
pages. In this case, the line scroll bar and current page are shown in bright
white circles. Measurement parameters are described in the following
table:
Abbreviations Instruction
Abbreviations Instruction
U(V)
Voltage
φUI(°)
Phase difference of k-order
harmonic voltage and
harmonic current
I(mA)
Current
φ
UU(°)
Phase difference of harmonic
voltage U(k) and fundamental
wave U(1)
P(W)
Active power
φ
II(°)
Phase difference of harmonic
current I(k) and fundamental
waveI(1)
S(VA)
Apparent
power
U(%r)/ U(%f)
Harmonic distortion factor of
voltage
Q(var)
Reactive
power
I(%r)/ I(%f)
Harmonic distortion factor of
current
PF()
Power factor
P(%r)/P(%f)
Harmonic distortion factor of
active power
Harmonic order list: this LIST can show the data of one-order to 50-order
harmonic signals. These data can be displayed in the whole sequence, odd
sequence and even sequence. The rows which are not displayed, i.e.
single-order harmonic data which are not displayed, can be presented by
operating the Up/Down key. In this case, the row scroll bar and current
page in displayed in bright blue bars.
