Checking a monitor installation to ensure it has been installed correctly is an important step in the power quality investigation.
It can be accomplished by checking the vector diagram obtained from the circuit under test with a reference vector diagram known to be correct.
Two methods are discussed but the first will be the most useful since it enables viewing the vector diagram in real time precluding the need for recorded data.
Determining if the installation is correct in this way may eliminate the need to record a second time and ensures recording accurate data.
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