March 2022

Welcome to the Q1 2022 issue of the Mirus International newsletter bringing you product updates and the latest news.

In this issue we discuss the available models and options for Mirus International Passive Harmonic Filters and introduce a new White Paper on the relationship between iTHD and iTDD in IEEE Std 519.
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Mirus International offers a full line of Passive Harmonic Filter products with a wide variety of options. Below you will find a slide presentation providing you with our extensive product listing and their associated options.
 
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Option Guide
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Understanding the Relationship between
Current Total Harmonic Distortion (iTHD) and
Total Demand Distortion (TDD) in IEEE Std 519-2014
White Paper
(New Release)
Among those trying to apply the harmonic limits of IEEE Std 519-2014, there seems to be some confusion on the difference between Total Harmonic Distortion (THD) and Total Demand Distortion (TDD). This paper is written to provide clarity and direction on how to apply the Standard’s current distortion limits as they were intended for an existing site operating for at least one year. There is also some comment on how to apply the standard during the design phase of a new or retrofit project, but for further discussion on that, please refer to an earlier published paper entitled, ‘A Practical and Effective Way of Applying IEEE Std 519-2014 Harmonic Limits'.
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