GE G60

GE Multilin G60 Generator Protection System 5-285
5 SETTINGS 5.7 CONTROL ELEMENTS
5
• 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.
Figure 5–153: BREAKER FLASHOVER SCHEME LOGIC
842018A2.CDR
AND
AND
AND
SET
dominant
RESET
SET
dominant
RESET
OR
OR
OR
OR
OR
BREAKER FLASHOVER
FUNCTION:
BRK 1 FLSHOVR V PKP:
BRK 1 STATUS CLSD A:
BRK 1 FLSHOVR PKP
DELAY:
BRK 1 FLSHOVR DPO A
BRK 1 FLSHOVR PKP A
BRK 1 FLSHOVR OP
BRK 1 FLSHOVR PKP
BRK 1 FLSHOVR DPO
BRK 1 FLSHOVR OP A
BRK 1 FLSHOVR DPO B
BRK 1 FLSHOVR PKP B
BRK 1 FLSHOVR OP B
BRK 1 FLSHOVR DPO C
BRK 1 FLSHOVR PKP C
BRK 1 FLSHOVR OP C
BRK 1 FLSHOVR SUPV A:
BRK 1 STATUS CLSD B:
BRK 1 FLSHOVR SUPV B:
BRK 1 STATUS CLSD C:
BRK 1 FLSHOVR SUPV C:
BRK 1 FLSHOVR AMP PKP:
BRK 1 FLSHOVR DIFF V
PKP:
BRK 1 FLSHOVR SIDE 1
SRC:
BRK 1 FLSHOVR SIDE 2
SRC:
Enable=1
RUN
RUN
RUN
RUN
RUN
RUN
SRC 1, SRC 2, … , SRC 6
SRC 1 SRC 2 SRC 6
, , … , , none
VB
Vb
IB
Block: OFF=0
VA > PKP
FlexLogic operand: On=1
FlexLogic operand: Off=0
FlexLogic operand: On=1
FlexLogic operand: Off=0
Phase B
logic
Phase B
logic
Phase B logic
Phase B logic
Phase C
logic
Phase C
logic
Phase C logic
Phase C logic
FlexLogic operand: On=1
FlexLogic operand: Off=0
IA > PKP
ΔVA > PKP
Va > PKP
VA
Va
IA
VC
Vc
Δ| |VA = VA - Va
IC
SETTING
SETTING
SETTINGS
SETTING
FLEXLOGIC OPERANDS
FLEXLOGIC OPERANDS
FLEXLOGIC OPERAND
FLEXLOGIC OPERANDS
FLEXLOGIC OPERANDS
SETTINGS
SETTING
SETTING
SETTINGS
SETTINGS
0
0
5 cycle
t
PKP
0
0
5 cycle
6 cycle