GE Multilin L60, Instruction Manual

Page: 279 / 752

GE Multilin L60 Line Phase Comparison System 5-149
5 SETTINGS 5.5 GROUPED ELEMENTS
5
Figure 5–53: OVERALL PHASE COMPARISON LOGIC
87PC phase comparison scheme logic
For
ce keying
OR
RUN
F1 phase CT bank
: IA
Signal Sour
ce
F1 phase CT bank
: IB
F1 phase CT bank
: IC
L1 phase CT bank
: IA
L1 phase CT bank
: IB
L1 phase CT bank
: IC
Two sour
ce curr
ents
One sour
ce curr
ent
Br
eaker-and-a-half logic
Br
eaker 2
I_2 –
K
× I_1
or 3I_0
Mixing network
87P
CV2 FDL OP
87P
C dI1/dt FDL OP
87P
C FDL A
UX OP
87P
C dI2/dt FDL OP
87P
C IOC FDL OP
87P
C I_2 FDL OP
87P
C I_1 FDL OP
OPEN BKR ECHO PICKUP FLE
XL
OGIC OPERA
N
D
SE
T
TI
N
G
Off = 0
87P
C Stop TX
SE
T
T
IN
G
AND
AND
200
ms
0
OR
AND
AND
SE
T
T
IN
GS
= Enabled
Function Block
831017AJ.
CDR
Transmit
logic
87P
C TX2 P
87P
C TX1 N
87P
C TX2 N
87P
C TX1 P
L60 CT/V
T
M
ODULE
RUN
Br
eaker-and-a-half logic
Br
eaker 1
I_2 –
K
× I_1
or 3I_0
Mixing network
87P
C FDL OP
FLE
XL
OGIC OPERA
N
DS
Positive delayed local pulse Positive adjusted remote pulse Negative adjusted remote pulse Negative delayed local pulse
AND
SE
T
T
IN
G
87P
C Pickup Delay
T
PKP
0
AND
TI
M
ER
AND
SE
T
T
IN
GS
Channel Loss Trip Window Stability Angle Enhanced Stability Angle Trip Security Second Coincidence Timer
dt
>
T.
ST
AB.
ANG
Positive-half integrator
dt
T
.
>
ST
AB.
ANG
Negative-half integrator
SE
TT
IN
G
Reset Delay 0
T
RST
AND
SE
T
T
IN
GS
Transient Reset
T
RST
T
PKP
87P
C TRANS BL
OCK OP
FLE
XL
OGIC OPERA
N
DS
87P
C PKP
87P
C DP
O
87P
C OP
OR
SE
T
T
IN
GS
Signal Mixed Signal K FDL Pickup 87P
C FDL A
UX
FDH Pickup Scheme Select FDH A
UX
Asymmetry Ch1 Asymmetry Ch2 Phase Delay Ch1 Phase Delay Ch2 Mixed Signal Refer
ence Angle
TI
M
ER
200 ms
0
OR
87P
C FDH OP
Σ(I_2 – K × I_1) or 3I_0
BKR1 P
OS
BKR1 NEG
BKR2 P
OS
BKR2 NEG
SE
T
T
IN
G
87P
C TX Reset Delay
0
T
RST
TI
M
ER
100 ms
0
Reset T
to 0
RST
Off = 0
87P
C FDH SUP
V
Off = 0
87P
CV2 FDH OP
87P
C dI1/dt FDH OP
87P
C FDH A
UX OP
87P
C dI2/dt FDH OP
87P
C IOC FDH OP
87P
C I_2 FDH OP
87P
C I_1 FDH OP
Transient Pickup
SE
T
T
IN
GS
= Off
High-Speed Contact 1
= Off
High-Speed Contact 2
SE
T
T
IN
G
87P
C RX1
FLE
XL
OGIC OPERA
N
DS
87P
C RX2
Channel 1: fr
om carrier #1
Channel 2: fr
om carrier #2
Rx1P Rx1N Rx2P Rx2N
87P
C RX1 N
87P
C RX2 P
87P
C RX2 N
87P
C RX1 P
L60 CT/V
T
M
ODULE
V1P > Pickup
SE
T
T
IN
GS
RX V
olt Ch1
RX V
olt Ch2
V1N > Pickup V2P > Pickup V2N > Pickup
AND
SE
T
T
IN
GS
= Enabled
Char
ging Curr
ent Function
Off = 0
Char
ge Comp Block
L5 phase V
T bank
: V
A
87P
C V
oltage Sour
ce
SE
T
T
IN
G
Line XC0 & XC1
RUN
Compute char
ging curr
ent
L5 phase V
T bank
: VB
L5 phase V
T bank
: V
C