CHAPTER 6: PROTECTION SETPOINTS CURRENT ELEMENTS
850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 6–13
Figure 6-3: Voltage Restraint characteristics for Phase TOC
VT INPUT
Range: Dependant upon the order code
Default: Ph VT Bank 1-J2
This setting provides the selection for the voltage input bank. The default bank names
can be changed in: Setpoints > System > Current Sensing > [Name] > VT Bank Name.
BLOCK
Range: Off, Any FlexLogic operand
Default: Off
OUTPUT RELAY X
For details see Common Setpoints
.
EVENTS
Range: Enabled, Disabled
Default: Enabled
TARGETS
Range: Self-reset, Latched, Disabled
Default: Self-reset
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
0
892784A1.CDR
Multiplier for Pickup Current
Phase-Phase Voltage ÷ VT Nominal Phase-phase Voltage
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