Sst Trip Characteristics; Sst Phase Sensor With Tap Board; Sst Neutral Sensors - GE AKR Series Maintenance Manual Supplement

GEI-86134, Power Circui| Breokers
300 -
800
A
Fig.
18.
SST
phase
sensor with tnp
board
Pickup tolerance
is
+
97o
Pickup tolerance
is
+ Wo
Fig.
19.
TAB1E
4
SSI IRIP
CHARACTIRISTICS
loo
-
300
A
SST
Neutral sensors
@
Time detay shown at
60@o
of long time pickup setting (6L), at
lower
limit
of
band.
o
@
@
Time delay shown at lower limit
of
band.
(See
pages
28,29
and 30 for
applicable
time-cunent
curves)
Breaker
Type
Frrme
Size
(Amperes)
X.
Trip Rating
in
Amperes
-Sensor
Tap
SSf
PROGRAMMER ADJUSTMET|T
RANCE
(Set Points)
Long Time
Short Time
fnstantaneous
Pickuo
@'
(':Tf*)
GROIjND FAULT
z
Seneor
t
(
mp"t"
)
\
Trps
/
ria<5(-t
)
(':ff")
Time
Delav
Band
@
(Seconds)
Pickup
o.
(*:'l'i")
Time
Delav
Band-@
(Seconds)
Pickuo
1t\
-
g,/
/ Multipte\
\
of
X /
Time
Delav
Band-@
(Seconds)
AKR.30
800
100,
150,225,
300
-or-
300,400,600,
800
.6,.7,
.8,
.9, 1.0,
1.1(X)
Maximum
22
Intermed.
10
Minimum
4
3,4,6,
6,
81
10
(L)
---or-
L.75,2,
2.25,2.5,
3,4 (L)
Maximum
0.35
Inrcrmed.
0.21
Minimum
0.095
4,5,6,
8,
10, 12
(L)
,4,
.5,.6,
.8, 1.0,
1.2
(X)
AKR.5O
1600
300,400, 600,800
-or-
600,800,
1200, 1600
.25,.3,.4,
.5,
.6,
.7
(X)
0.30
Intermed.
0.165
Minimum
0.065
AKRT.SO
2000
800, 1200,
1600,2000
.2,.25,.3,
.4, .5,
.6
(X)
16