Schweitzer Engineering SEL-351P - Page 106

1-10 Factory-Set Logic Date Code 990215
SEL-351P Manual Técnico
SEL OGIC
Setting
and
Relay
Word
Bit
SV10
(cold load
pickup
scheme
actively
engaged
for ground
elements)
SV9
PU
0
Loss of load diversity
Restore min. trips
scheme enabled for
ground elements
Cold load pickup scheme enabled
for ground elements
Cold load pickup
ground current below
normal Min. trip -
ground
SV9 SV9T
Relay
Word
Bits
SV6T
SV5T
RPG
CLG
50G6
52A
Recloser closed
DWG: M351R031
Ground current above
normal Min. trip -
ground
50N6
Restore min. trips
Ground current above
normal Min. trip - ground
SEL
OGIC
Setting
Relay
Word
Bit
SV9PU (=900 cycles from factory) is the
qualifying time for cold load pickup ground
current below normal Min. trip - ground
Figure SECTION 1: .3: Cold Load Pickup Scheme Seal-in Logic for Ground
Overcurrent Elements
SEL OGIC
Setting
and
Relay
Word
Bit
SV12
(cold load
pickup
scheme
actively
engaged
for SEF
element)
SV11
PU
0
Loss of load diversity
Restore min. trips
Restore min. trips
scheme enabled for
SEF element
Cold load pickup scheme enabled
for ground elements
Ground current above
normal Min. trip - SEF
Cold load pickup
ground current
below normal
Min. trip - SEF
SV11 SV11T
Relay
Word
Bits
SV6T
SV5T
RPS
CLG
50N4
52A
Recloser closed
DWG: M351R032
SV11PU (=900 cycles from factory) is the
qualifying time for cold load pickup phase
current below normal Min. trip - SEF
SEL
OGIC
Setting
Relay
Word
Bit
Figure SECTION 1: .4: Cold Load Pickup Scheme Seal-in Logic for SEF
Overcurrent Elements