各位大师好,
有一个问题困扰着我,就是真空吸尘器在谐波测试中的测试条件,我看了标准IEC61000-3-2-2005中规定:如果真空吸尘器带了电子控制电路那么谐波测试要测试三种状态:最大功率,90°触发的状态和最小功率,这个我没有疑问但是标准中没有规定当真空吸尘器不带电子控制电路的情况下谐波的测试方法?恳求各位大师指点迷津,不甚感激!
C.7
Test conditions for vacuum cleaners
The air inlet of the vacuum cleaner is adjusted according to normal operation as defined in
IEC 60335-2-2.
During the test observation period, which shall not be shorter than 6 min, vacuum cleaners with
electronic control are tested in three modes of operation, each for an identical time interval,
with the control adjusted:
– to maximum input power,
– to a firing-angle of 90° ± 5°, or, if controlled by steps, to that step closest to 90°,
– and to minimum input power.
NOTE? Alternatively, the equipment may be tested for 3 identical time intervals – each at least 2 min long – during
which the vacuum cleaner is operated in the above three modes. These 3 time intervals need not be consecutive,
but the application of limits is done as if the intervals were consecutive, without taking into account harmonic
current values outside these 3 intervals.
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