AMETEK MX CTSL - Manual (Page 17)

User Manual MX-CTSL Compliance Test System
California Instruments Revision J 17
Pass/Fail criteria under the new standard are as follows:
The average value for the individual harmonic currents, taken over the entire test observation period shall be
less than or equal to the applicable limits.
For each harmonic order, all 1,5 s smoothed r.m.s. harmonic current values shall be less than or equal to
150% of the applicable limits.
Harmonic currents less than 0,6% of the input current measured under the test conditions, or less than 5 mA,
whichever is greater, are disregarded.
For the 21st and higher odd order harmonics, the average values obtained for each individual odd harmonic
over the full observation period, calculated from the 1,5 s smoothed values may exceed the applicable limits by
50% provided that the following conditions are met:
•
The measured partial odd harmonic current does not exceed the partial odd harmonic current, which
can be calculated from the applicable limits.
•
All 1,5 s smoothed individual harmonic current values shall be less than or equal to 150% of the
applicable limits.
2.3.2 EN 61000-3-2 Test Limits
The following table summarizes the current harmonic limits for each device class that are presently in
effect. The limits are generally built into IEC test software programs such as California Instruments’
CTSMXL Test System software. If the power level of a class D device drops below 75 W (configurable -
see System Administrator Manual P/N 7003-794), no harmonic current limits are applied and the result will
always show a pass.
Harmonic no. (n) Class A Class B Class C Class D IEC 555-2
A RMS A RMS % of
fundamental
RMS current
mA/Watt of
input power
(75 - 600 W)
A RMS
TV Receivers
> 165 W
2 1.080 1.620 2 - 0.300
3 2.300 3.450 30 x PF 3.400 0.800
4 0.430 0.645 - - 0.150
5 1.140 1.710 10 1.900 0.600
6 0.300 0.450 - - -
7 0.770 1.155 7 1.000 0.450
8 0.230 0.345 - - -
9 0.400 0.600 5 0.500 0.300
10 0.184 0.276 - - -
11 0.330 0.495 3 0.350 0.170
12 0.153 0.230 - - -
13 0.210 0.315 3 0.296 0.120
Even 14-40 1.84 / n 2.760 / n - - -
Odd 15-39 2.25 / n 3.338 / n 3 3.850 / n
1.500 / n
Table 2-1: EN 61000-3-2 Class Limits