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Project 2009-17
Interpretation of PRC-004-1 and PRC-005-1 for Y-W Electric and Tri-State
Status:
Approved by the Board of Trustees on
February 17, 2011.
Summary:
On March 25, 2009, Y-W Electric Association, Inc. (Y-WEA)
and Tri-State Generation and Transmission Association, Inc. (Tri-State)
requested an interpretation of the term "transmission Protection System"
as used in requirements R1 and R3 of PRC-004-1 and requirements R1 and
R2 of PRC-005-1. Specifically, the interpretation seeks to clarify
whether protection for a radically-connected transformer protection
system energized from the BES is considered a transmission Protection
System and is subject to these standards.
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