IEC61000-3 S
OFTWARE FOR
W
INDOWS
U
SER
M
ANUAL
G
ETTING
S
TARTED
Voltech Instruments
VPN 98-025/7
Page 55
4.12.
P
ERFORMING A
R
EPEATABILITY
T
EST
It is a condition of IEC61000-3-2 2001 that 'the repeatability of the
measurements shall be better than 5%…..'.
When more than one 2001 edition fluctuating harmonics result is available,
they may be selected and a repeatability test performed. (This test is found
under the 'result' menu).
To select results to test for repeatability, click on your first choice using the
mouse and then hold the 'CTRL' key when mouse clicking on the others.
The list of results selected appear in the Results Description box. Click on
OK to run the repeatability test.
The repeatability test compares all the harmonic results for each harmonic
from one set of results to every other to see if they are within 5%.
Harmonics less than 0.6% of the input current or less than 5mA are
ignored.