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Return to Frequently Asked Questions
Worst Case RMS Example
As an example, consider the following I-Grid event:
The table below shows the reported worst-case values (nominal voltage is 120Vrms)
RMS Data: |
Channel |
Min (Vrms) |
Max (Vrms) |
Worst Case RMS as % of Nominal |
1 |
52.1 |
120.6 |
43.4% |
2 |
75.2 |
122.6 |
62.7% |
3 |
38.4 |
124.3 |
32.0% |
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The following charts show how the rms calculations work:
- The event waveform from the I-Grid website
- The computed (sliding window) half-cycle rms voltage
- The rms voltage chart from the I-Grid website
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