US PATENT SUBCLASS 324 / 108
.~.~ Positive, negative or zero sequence

Current as of: June, 1999
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324 /   HD   ELECTRICITY: MEASURING AND TESTING

76.11  DF  MEASURING, TESTING, OR SENSING ELECTRICITY, PER SE {46}
107  DF  .~ Polyphase {1}
108.~.~ Positive, negative or zero sequence

DEFINITION

Classification: 324/108

(under subclass 107) Subject matter for measuring the

positive, negative or zero sequence of current of voltage in the polyphase system or responsive to one of these factors.