Zero Sequence Voltage(-V0)
SETPOINT
GND DIR FUNCTION:
Disabled= 0
Latched Alarm
SETPOINT
BLOCK 1:
Off = 0
BLOCK 2:
Off = 0
BLOCK 3:
Off = 0
OR
GND DIR REVERSE
Alarm
OR
REVERSE
(Message)
SETPOINT:
Do Not Operate, Operate
OUTPUT RELAY X
Control
Ground Current (Ig)
Voltage Polarization
-3V_0
3I_0
FWD
REV
REV
RUN
SETPOINT
GND DIR MTA
SETPOINT
MIN POL VOLTAGE:
|V0| >MINIMUM
Ig > 0.05 x CT
AND
AND
AND
Gnd Dir Reverse
(Event Recorder, Transient Recorder)
OR
AND
LED: ALARM
RESET
Command
AND
S
R
LATCH
SETPOINT
BLK GOC DIR UNDEF
Enabled
( * )
Polarizing voltage will be 3V0 when voltage is measured from the auxiliary voltage channel
AND AND
BLK GND DIR OC UNDEF
(To Ground TOC and Ground IOC)
FOWARD
(To Ground TOC and Ground IOC )
(To Ground TOC and Ground IOC )
(Message)
(Flexlogic)
(Event Recorder , Trasient
Recorder )
898018A3.CDR
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