Hi.
I'm Sam Foster with Keysight Technologies.
I'm an R&D engineer.
And today we're going to be looking at the IEC61000-3-2 measurements, harmonic measurements
on the IntegraVision power analyzer PA2203A.
Now this is going to be a very useful feature if you have some sort of device that you're
trying to see will be compliant with the IEC standard and see what the harmonics look like.
So first of all I've got kind of a basic setup right now.
You'll want to click on analyze and it will take you, if you're not already in the harmonics
test you can click here and get to the harmonics test.
Now the IEC61000-3-2 is a current harmonics test so to be able to do this test you're
going to have to switch your source to current.
So I'll go ahead and do that here.
And you can see the frequency I've got going on is not exactly 60 hertz so there's a place
for you to put exactly what frequency you're working with and right now I put in 59.8 hertz.
So you can see we have a sidebar here showing your THD and a table view with the harmonic
number, the frequency, the value and RMS and then you can see the limits and margin and
status are all blank right now.
That's because I haven't started the test quite yet.
So to do that I'm going to click on settings and I'll go to the IEC standard button.
Now there are four different Classes of IEC standards.
There's A, B, C and D and you should choose the Class of test for the type of device that
you're testing.
So I'm going to go ahead and show you maybe a little bit of each one.
So for Class A you can see the test reruns and I get all of my different harmonics up
to the 40th harmonic and you can see that I have nice green for passing and you now
have the limit, the allowable harmonic limit and the margin of which you passed.
Going on to the Class B, it recalculates and you get something pretty similar.
Now Class C you can start seeing some failure in the harmonics.
And up here you can see how many harmonics you actually fail so that count is going up
as the same wave form is going into the box.
And also the third harmonic for Class C uses the power factor to determine the limit.
Going on to Class D, you get the most amount of columns here.
You get not only the same RMS limits and margin from the other tests, but then you have a
milliamps per watt value, and milliamps per watt limit, a margin and the total status
of failing or passing.
Now you may want to look at your harmonics in a few different ways.
So if I go to my display key here, you can either look at it in a table view or you can
also look at your harmonics and bar chart view, which is a little bit more visually
easy to see what's going on here.
And if you really wanted to, you could look at both of them at the same time.
The scroll harmonics button is just a nice easy navigational tool.
Once you click on it this knob is now mapped to the harmonics and as I move them around,
both the table and the chart are moving to the corresponding harmonic of interest.
And that's all I've got for you on the IEC61000-3-2.
Thank you for watching.