GE B30 UR Series Instruction Manual page 307

5 SETTINGS
• BRK 1 FLSHOVR SPV A to BRK 1 FLSHOVR SPV C: These settings specify FlexLogic operands (per breaker pole)
that supervise the operation of the element per phase. Supervision can be provided by operation of other protection
elements, breaker failure, and close and trip commands. A six-cycle time delay applies after the selected FlexLogic
operand resets.
• BRK FLSHOVR PKP DELAY: This setting specifies the time delay to operate after a pickup condition is detected.
SETTING
BREAKER FLASHOVER
FUNCTION:
Enable=1
AND
Block: OFF=0
SETTINGS
BRK 1 FLSHOVR SIDE 1
SRC:
SRC 1, SRC 2, ... , SRC 6
VA
VB
VC
IA
IB
IC
SETTINGS
BRK 1 FLSHOVR SIDE 2
SRC:
SRC 1 SRC 2 SRC 6
, , ... , , none
Va
Δ VA = | VA - Va |
Vb
Vc
c) CT TROUBLE ZONE

PATH: SETTINGS CONTROL ELEMENTS
 CT TROUBLE ZONE 1

MESSAGE
MESSAGE
MESSAGE
MESSAGE
This element uses the differential current calculated in accordance with the bus configuration programmed under Bus Zone
1. Operation of this element is therefore completely dependent on the dynamic bus replica, which must be defined first. The
bus differential zones are defined using the path
CT problems in any of the circuits actually connected to the differential zone defined as Bus Zone 1.
The
CT TROUBLE ZONE 1 PICKUP
ferential current in a given phase remains above this level for the time interval defined by the
setting, CT Trouble is declared for the given phase by setting the appropriate FlexLogic output operand.
GE Multilin
SETTINGS
BRK 1 FLSHOVR SUPV A:
0
FlexLogic operand: Off=0
6 cycle
Phase B
BRK 1 FLSHOVR SUPV B:
logic
FlexLogic operand: Off=0
Phase C
BRK 1 FLSHOVR SUPV C:
logic
FlexLogic operand: Off=0
SETTING
BRK 1 FLSHOVR V PKP:
RUN
VA > PKP
0
OR
5 cycle
Va > PKP
SETTINGS
5 cycle
BRK 1 STATUS CLSD A:
0
RUN
FlexLogic operand: On=1
BRK 1 STATUS CLSD B:
Phase B
logic
RUN
FlexLogic operand: On=1
BRK 1 STATUS CLSD C:
Phase C
logic
RUN
FlexLogic operand: On=1
SETTING
BRK 1 FLSHOVR AMP PKP:
RUN
IA > PKP
SETTING
BRK 1 FLSHOVR DIFF V
PKP:
RUN
ΔVA > PKP
Figure 5–79: BREAKER FLASHOVER SCHEME LOGIC

MONITORING ELEMENTS
CT TROUBLE ZONE 1
FUNCTION: Disabled
CT TROUBLE ZONE 1
PICKUP: 0.100 pu
CT TROUBLE ZONE 1
DELAY: 10.0 s
CT TROUBLE ZONE 1
TARGET: Self-reset
CT TROUBLE ZONE 1
EVENTS: Disabled

SETTINGS
setting specifies the differential current level that defines an abnormal bus state. If the dif-
B30 Bus Differential System
FLEXLOGIC OPERANDS
BRK 1 FLSHOVR PKP A
BRK 1 FLSHOVR PKP B
BRK 1 FLSHOVR PKP C
FLEXLOGIC OPERANDS
BRK 1 FLSHOVR DPO A
BRK 1 FLSHOVR DPO B
AND
BRK 1 FLSHOVR DPO C
SET
dominant
Phase C logic
Phase B logic
RESET
OR
SET SETTING
dominant
BRK 1 FLSHOVR PKP
DELAY:
t
PKP
Phase B logic
RESET
OR Phase C logic
AND

CT TROUBLE ZONE 1(2)
Range: Disabled, Enabled, Alarm
Range: 0.020 to 2.000 pu in steps of 0.001
Range: 1.0 to 60.0 s in steps of 0.1
Range: Self-reset, Latched, Disabled
Range: Disabled, Enabled
 . The CT Trouble element 1 detects
SYSTEM SETUP BUS
5.7 CONTROL ELEMENTS
FLEXLOGIC OPERANDS
OR BRK 1 FLSHOVR PKP
BRK 1 FLSHOVR DPO
FLEXLOGIC OPERANDS
0 BRK 1 FLSHOVR OP A
FLEXLOGIC OPERAND
BRK 1 FLSHOVR OP B OR BRK 1 FLSHOVR OP
BRK 1 FLSHOVR OP C
842018A2.CDR
CT TROUBLE ZONE 1 DELAY
5-181
5