GE UR series

GE Multilin L60 Line Phase Comparison System 5-175
5 SETTINGS 5.5 GROUPED ELEMENTS
5
Figure 5–91: WATTMETRIC CHARACTERISTIC ANGLE RESPONSE
• WATTMETRIC GND FLT 1 MULTIPLIER: This setting is applicable if
WATTMETRIC GND FLT 1 CURVE above is selected
to Inverse and defines the multiplier factor for the inverse time delay.
Figure 5–92: WATTMETRIC ZERO-SEQUENCE DIRECTIONAL LOGIC
FORWARD FAULT REVERSE FAULT
V
n
I
n
ECA = 180 to 270°
V
n
I
n
ECA=0to90°
V
n
I
n
ECA = 180°
V
n
I
n
ECA=0°
V
n
I
n
ECA = 90 to 180°
V
n
I
n
ECA = 270 to 360°
INDUCTIVE NETWORK
RESISTIVE NETWORK
CAPACITIIVE NETWORK
837804A1.CDR
SETTINGS
WATTMETRIC GND FLT
1 FUNCTION:
Enabled = 1
AND
WATT GND FLT 1 BLK:
Off = 0
SETTINGS
WATTMETRIC GND FLT 1
SOURCE:
Neutral, In Ground, Ig
Neutral, Vn Auxiliary, Vx
WATTMETRIC GND FLT 1
CURRENT:
Calculated: Measured:
WATTMETRIC GND FLT 1
VOLTAGE:
Calculated: Measured:
SETTING
WATTMETRIC GND FLT 1
ECA:
S = V*conj (I*exp(-j*ECA))
SETTINGS
WATTMETRIC GND FLT 1
OC PICKUP:
WATTMETRIC GND FLT 1
OV PICKUP:
S
OP
> PWR PICKUP
I > OC PICKUP
MAG
WATTMETRIC GND FLT 1
PWR PICKUP:
V > OV PICKUP
MAG
t
PKP
0
SETTING
WATTMETRIC GND FLT 1
1 PWR PKP DEL:
SETTINGS
WATTMETRIC GND FLT 1
REF PWR:
RUN
WATTMETRIC GND FLT 1
MULTIPLIER:
FLEXLOGIC OPERAND
WATTMETRIC 1 OP
AND
AND
t
PKP
0
SETTING
WATTMETRIC GND FLT 1
OC PKP DEL:
FLEXLOGIC OPERAND
WATTMETRIC 1 PKP
837033A4.CDR
WATTMETRIC GND FLT 1
CURVE:
OP
REF
S
S
mt ×=