GE 350-A9

6–114 350 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
S3 PROTECTION CHAPTER 6: SETPOINTS
Figure 6-52: Volts-per-hertz logic diagram
SETPOINTS:
Operate, Do Not Operate OUTPUT RELAY X
898864A1.cdr
Pickup:
SETPOINTS
RUN Curve: TD Multiplier: Reset Time:
Block1
SETPOINT
Off=0
AND
t
V/Hz
SETPOINTS
FUNCTION:
Disabled=0
Trip Alarm
Latched Alarm
OR
AND AND AND
Operate Output
Relay 1(TRIP)
LED: TRIP
OR
LED: ALARM
LATCH
S R
RESET
Command
Voltage Inputs based on VT setup
WYE Delta Van Vbn
Vcn
Vab Vbc Vca
VT Frequency
Actual Values
V, F
Voltage Mode:
OR
Block2
Off=0
Block 3
Off=0
Event Recorder
Transient Recorder
Voltz /Hz OP
Voltz/Hz PKP
Voltz/Hz DPO
LED: PICKUP
MAX