GE N60 - Page 295

GE Multilin N60 Network Stability and Synchrophasor Measurement System 5-177
5 SETTINGS 5.6 GROUPED ELEMENTS
5
Figure 5–66: PHASE OVERVOLTAGE SCHEME LOGIC
If the source VT is wye-connected, then the phase overvoltage pickup condition is for V
AB
, V
BC
,
and V
CA
.
PHASE OV1
SOURCE:
Source VT = Delta
Source VT = Wye
VAB
VBC
VCA
PHASE OV1 A PKP
PHASE OV1 B PKP
PHASE OV1 C PKP
PHASE OV1 OP
PHASE OV1 A DPO
PHASE OV1 B DPO
PHASE OV1 C DPO
PHASE OV1 A OP
PHASE OV1 B OP
PHASE OV1 C OP
PHASE OV1 DPO
AND
PHASE OV1
FUNCTION:
Disabled = 0
Enabled = 1
SETTING
PHASE OV1
BLOCK:
Off=0
SETTING
SETTING
PHASE OV1
PICKUP:
SETTING
FLEXLOGIC OPERANDS
FLEXLOGIC OPERAND
FLEXLOGIC OPERAND
827066A7.CDR
RUN
VAB PICKUP≥
RUN
VBC PICKUP≥
RUN
VCA PICKUP≥
AND
OR
PHASE OV1 PKP
FLEXLOGIC OPERAND
OR
PHASE OV1 RESET
DELAY:
SETTINGS
t
PKP
t
PKP
t
PKP
t
RST
t
RST
t
RST
PHASE OV1 PICKUP
DELAY:
NOTE
V 3 Pickup