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5-182
L60 Line Phase Comparison Relay
GE Multilin
5.6 CONTROL ELEMENTS
5 SETTINGS
5
•
BRK FLSHOVR SIDE 2 SRC
: This setting specifies a signal source used to provide another set of three phase volt-
ages whenever six (6) VTs are available across the breaker.
•
BRK STATUS CLSD A(C)
: These settings specify FlexLogic™ operands to indicate the open status of the breaker. A
separate FlexLogic™ operand can be selected to detect individual breaker pole status and provide flashover detection.
The recommended setting is 52a breaker contact or another operand defining the breaker poles open status.
•
BRK FLSHOVR V PKP
: This setting specifies a pickup level for the phase voltages from both sides of the breaker. If 6
VTs are available, opening the breaker leads to two possible combinations – live voltages from only one side of the
breaker, or live voltages from both sides of the breaker. Either case will set the scheme ready for flashover detection
upon detection of voltage above the selected value. Set
BRK FLSHOVR V PKP
to 85 to 90% of the nominal voltage.
•
BRK FLSHOVR DIFF V PKP
: This setting specifies a pickup level for the phase voltage difference when two VTs per
phase are available across the breaker. The pickup voltage difference should be below the monitored voltage differ-
ence when close or open breaker resistors are left in service. The setting is selected as primary volts difference
between the sources.
•
BRK FLSHOVR AMP PKP
: This setting specifies the normal load current which can flow through the breaker.
Depending on the flashover protection application, the flashover current can vary from levels of the charging current
when the line is de-energized (all line breakers open), to well above the maximum line (feeder) load (line/feeder con-
nected to load).
•
BRK FLSHOVR SPV A(C)
: This setting specifies a FlexLogic™ operand (per breaker pole) that supervises the opera-
tion of the element per phase. Supervision can be provided by operation of other protection elements, breaker failure,
and close and trip commands. A 6-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 5–106: 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
Δ
VA > 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
Содержание L60
Страница 2: ......
Страница 4: ......
Страница 24: ...1 14 L60 Line Phase Comparison Relay GE Multilin 1 5 USING THE RELAY 1 GETTING STARTED 1...
Страница 42: ...2 18 L60 Line Phase Comparison Relay GE Multilin 2 2 SPECIFICATIONS 2 PRODUCT DESCRIPTION 2...
Страница 78: ...3 36 L60 Line Phase Comparison Relay GE Multilin 3 3 DIRECT INPUT OUTPUT COMMUNICATIONS 3 HARDWARE 3...
Страница 368: ...8 28 L60 Line Phase Comparison Relay GE Multilin 8 2 SINGLE POLE TRIPPING 8 THEORY OF OPERATION 8...
Страница 470: ...D 10 L60 Line Phase Comparison Relay GE Multilin D 1 PROTOCOL APPENDIXD D...
Страница 482: ...E 12 L60 Line Phase Comparison Relay GE Multilin E 2 DNP POINT LISTS APPENDIXE E...
Страница 498: ...x L60 Line Phase Comparison Relay GE Multilin INDEX Z ZERO SEQUENCE CORE BALANCE 3 9...