LMX SERIES™ OPERATION MANUAL
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2018 by Pacific Power Source, Inc. (PPS) • All Rights Reserved • No reproduction without written authorization from PPS.
LMX Series Power Source Operation Manual
Page 407 of 463
10.8.6
Harmonics
Harmonics measurements for voltage and current on all phases can be displayed using the
Harmonics display screen as illustrated below. Both Bar Chart and Table displays are shown. The
distortion values for the parameter selected (Voltage or Current) are display in a table directly
below the Bar chart area.
Available selections in this measurement screen are:
CONTROL
Purpose
SELECTED PHASE
MEASUREMENT TYPE
Selects Voltage L-N, Voltage L-L, Current or Both Voltage & Current
FROM
Selects the first harmonic number to display. Range is 1 ~ 49
TO
Selects the last harmonic number to display. Range is 2 ~ 50
AUTO REFRESH
Turns AUTO REFRESH mode ON or OFF
REFRESH PERIOD
Sets interval time for AUTO REFRESH mode in seconds. Range is 5 ~ 100.
REFRESH
Manual REFRESH button
EXPORT GRAPH
Downloads image for displayed Bar chart. See sample below.
EXPORT DATA
Downloads captured harmonics data in csv format text file. See sample
below.
Measurement
Phase A[%]
THD
455.98
OHD
354.89
EHD
286.32
#
Freq.[Hz]
Phase A
Mag.[%]
Phase A
Phase.[Deg]
1
50
100
75.89
2
100
51.72
60.61
3
150
76.38
70.94
4
200
30.75
329.44
5
250
80.49
243.12
6
300
70.33
18.6
7
350
72.99
257.95
8
400
59.41
268.51