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1.3.3 Worked Example of Chroma 61602 + Chroma A615003
The same blocking capacitor is also needed , even if using off the shelf solutions.
Consider the below example of the Chroma 61602 Amp (0-300V) and the associated A615003 300-600V
transformer accessory. In this case, the blocking capacitor is still needed
Using 50Hz, 500V, 0.3Amps, as test conditions, and 2:1 for the step-up ratio of the A615003, the capacitor
need is 76uF, 50V
In this case we have used a general purpose, commonly available KEMET -
R60EW61005000K 100 µF, ±
10%, 63 V Capacitor.
When writing the AT test program ATP file, a gain of 84 should be used for the external source set up, as this
represents the entire system gain
(CT10-20 module not shown fitted, but will be required)
