Std Harmonic Mode (En 61000-4-7 Ed 2.1 Compliant); View Harmonics - Fluke NORMA 4000 Operator's Manual

NORMA 4000/5000
Operators Manual

STD Harmonic Mode (EN 61000-4-7 Ed 2.1 compliant)

View Harmonics

1. Use function key Config to open harmonics setup screen. Press Enter and select STD
2. Select number of cycles (N) per analysis interval (200ms @ nominal frequency).
3. Select grouping mode according to EN standard:
8-28
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mode with the cursor keys. Press Enter to confirm.
Only settings of 10 (for 50 Hz) and 12 (for 60 Hz) are defined by the EN standard,
the other values (4, 6, 8) are provided for convenience to have a faster update rate
when analyzing lower frequency signals.
Analysis interval length = N / f
none No grouping, basic spectral components (absolute RMS only, no THD)
harm Harmonic components Y
hgrp Harmonic groups Y
hsgrp Harmonic subgroups Y
isgrp Inter-harmonic subgroups Y
sgrp Harmonic & inter-harmonic subgroups Y
THDT
THDs are calculated from harmonics or groups 2...40 according to
selected grouping mode, shown only in table view (relative % of H01)
(TIDS and THDT are not defined in EN standard).
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[sec]
sync
(absolute or relative % of H01), THD
H,h
(absolute or relative % of H01), THDG
g,h
(absolute or relative % of H01), THDS
sg,h
(absolute or relative % of H01), TIDS
isg,h
Note
PowerMeterStore
esn112.eps
+ Y (abs. or rel. % of H01),
sg,h isg,h
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