GE N60 Instruction Manual page 289

CHAPTER 5: SETTINGS
Figure 5-80: Power swing detect quadrilateral operating characteristics
The FlexLogic output operands for the power swing detect element are as follows:
•
POWER SWING OUTER, POWER SWING
are auxiliary operands that facilitate testing and special applications
POWER SWING TMR4 PKP
• blocks selected protection elements, such as distance functions
POWER SWING BLOCK
• blocks those protection elements that are intended to be blocked under power swings, but
POWER SWING UN/BLOCK
subsequently unblocked when a fault occurs after the power swing blocking condition has been established
N60 NETWORK STABILITY AND SYNCHROPHASOR MEASUREMENT SYSTEM – INSTRUCTION MANUAL
Figure 5-79: Effects of blinders on the mho characteristics
X
MIDDLE, POWER SWING
FWD RCA
INNER, POWER SWING TMR2 PKP,
GROUPED ELEMENTS
R
PKP, and
POWER SWING TMR3
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