GE G60 Instruction Manual page 441

Generator protection system
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CHAPTER 5: SETTINGS
(POWER SWING
TRIP) FlexLogic operands with other protection functions and output contacts in order to make this
element fully operational.
The element can be set to use either lens (mho) or rectangular (quadrilateral) characteristics, as shown in the figure. When
set to "Mho," the element applies the right and left blinders as well. If the blinders are not required, set their settings high
enough to effectively disable the blinders.
Figure 5-120: Power swing detect mho operating characteristics
G60 GENERATOR PROTECTION SYSTEM – INSTRUCTION MANUAL
Figure 5-121: Effects of blinders on the mho characteristics
GROUPED ELEMENTS
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