9424200994 Rev U
Name
Logic Function
Block
Trip
Pickup
mho Pickup
Blinder A Pickup
Blinder B Pickup
Operational Settings
Out of Step protection element operational settings are configured on the Out of Step (78OOS) settings
screen (Figure 96) in BESTCOMSPlus. Setting ranges and defaults are summarized in Table 57.
BE1-11g
Figure 95. Out of Step Element Logic Block
Table 56. Logic Inputs and Outputs
Input
Disables the 78OOS function when true
Output
True when the 78OOS element is in a trip condition
Output
True when the 78OOS element is in a pickup condition
Output
Z1 impedance is inside mho circle
Output
Z1 impedance is to the right of blinder B
Output
Z1 impedance is to the left of blinder B
Figure 96. Out of Step Settings Screen
Purpose
and inside mho circle
A
and inside mho circle
B
Out of Step (78OOS) Protection
153
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