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Can Total Demand Distortion (TDD) be manually calculated?

Total Demand Distortion (TDD) can be calculated by the following two methods.
*Note you will need the Peak Demand Current.

1) If the per phase THD and Fundamental currents are known, the attached calculation can be used.

CM4 THD_TDD calculation.doc


2) If the per phase thd and true RMS currents are known, the attached calculation can be used.

CM4 little thd_TDD calculation.doc


Legacy KB System (APS) Data: RESL205832 V1.0, Originally authored by MaTh on 07/26/2011, Last Edited by MaTh on 07/26/2011
Related ranges: Engineering Knowledge Applied to Power Management
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