GE UR Series Instruction Manual page 206

5.5 GROUPED ELEMENTS
SETTING
OPEN POLE
FUNCTION:
Disable=0
Enable=1
SETTING
OPEN POLE BLOCK:
Off=0
SETTING
OPEN POLE A
AUX CONTACT:
AND
Off=0
SETTING
OPEN POLE B
AUX CONTACT:
AND
Off=0
SETTING
5
OPEN POLE C
AUX CONTACT:
AND
Off=0
SETTING
OPEN POLE BROKEN
CONDUCTOR:
Enable=1
Disable=0
SETTING
OPEN POLE
CURRENT SOURCE:
AND
IA
IB
IC
SETTING
OPEN POLE
VOLTAGE INPUT:
Enable=1
Disable=0
SETTING
OPEN POLE
VOLTAGE SOURCE:
AND
WYE DELTA
VAG or VAB
VBG or VBC
VCG or VCA
5-122
OR
AND
SETTING
AND
OPEN POLE
CURRENT PICKUP:
AND
RUN
IA > SETTING
IB > SETTING
IC > SETTING
RUN
VA < 75% Nominal
VB < 75% Nominal
VC < 75% Nominal
Figure 5–62: OPEN POLE DETECTOR SCHEME LOGIC
L90 Line Differential Relay
OR
OR
OR
AND
AND
AND
5 SETTINGS
SETTING
OPEN POLE
PICKUP DELAY:
FLEXLOGIC OPERAND
OPEN POLE
RESET DELAY:
OPEN POLE OP
OR ANY PHASE
A OPEN POLE OP A
B OPEN POLE OP B
C OPEN POLE OP C
827047A6.CDR
GE Power Management