xu380067936 发表于 2013-1-20 22:59:10

关于真空吸尘器的谐波测试方法的一些疑问?


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.


stone0371 发表于 2013-1-21 12:49:36


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IEC61000-3-2-20 ...
xu380067936 发表于 2013-1-20 22:59 http://bbs.emcbest.com/images/common/back.gif

    你说的我们一般认为是属于可以adjust的模式,有多个速度档位,一般测试6min,如果只有on和off的按键,没有调速功能的,只要按照一般的测试时间2.5min就可以了,关于测试时间在table4中有,目前这个标准最新的2009.

考古拉 发表于 2013-1-21 16:59:33


我想LZ是想问 没有调速功能的吸尘器还需不需要 按照IEC 60335-2-2来堵一下进气口。
我一般是堵一下的,因为更容易通过。;P

xu380067936 发表于 2013-1-21 23:54:07


"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, "
我今天亲自去测试了一下,有些测试软件上有专门针对真空吸尘器的选项,有些没有,我认为一般不带控制电路的吸尘器应该是平常的测试方法测试6分钟,但是在测试过程中你可以采取堵风口和不堵来测试最大和最小功率的状态,但是唯独那个90°触发的是调不出的,你也可以用堵一半风口的方法来调到所谓的触发状态,但是其实是实现不了的。上面红色加粗的部分应该说明要测试6分钟以上。

xu380067936 发表于 2013-1-22 00:00:11


还要就是软件里面本来自带的有真空吸尘器的测试流程,它也是最少测试六分钟的。
“打开Analyzer的控制软件 ,选择Measurement→EN/IEC 61000-3-2→Vacuum Cleaners

弹出如下对话框,显示测试时间为6分钟,点Start。”

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