GE AKR-30 Series Maintenance Manual page 235

Breaker
Type
(Amperes)
Al{R-30
AKR-50
AKRT-50
CD
®
Pickup tolerance is ±. 9%
Pickup tolerance is ±. 10%
1 1 . 1 ECS CABLING DIAGRAM
ECS TRIP CHARACTERISTICS
X
=
Trip Rating
in Amperes
• Sensor Rating
( )
Frame
Size
( Pick
Sensor
Am � ere
Ratmg
100, 150, 225,
800 300, 400,
600, 800
300, 400, 600,
1600
800, 1200, 1600
2000 800, 1200,
@
1600, 2000
@
TAB L E 1 0 - S ENSOR R ESISTANCE VAL U ES
Ampere
Rating
lOO
1 50
225
300
400
600
800
1 200
1 600
2000
+ A + B
�
r
BREAKER
BACK FRAME
I
LEFT POLE
CURRENT
SENSOR
I
I
I_ -
LOAD
FIG. 75. CABLING DIAGRAM FOR ECS TRIP
D EVI CE
TABLE 9
ECS PROGRAMMER ADJUSTMENT RANGE (Set Points)
Long Time
eD
®
@
(•L) ) Time Pickup
(
Delay
Multiple
Band Multiple
X
of (Seconds) of L
3, 4, 5 ,
6, 8, 10 (L)
Maximum
22
-or-
In termed.
. 6, .7, .8,
. 10
,
9 1 .0, 1 . 75, 2,
(X)
Minimum
1.1
2.25, 2 . 5,
4
3, 4 (L)
Time delay shown at 600% of long time pickup setting (6L), at
lower limit of band.
Time delay shown at lower limit of band.
Resistance in Ohms
between Term i nals
3.0 - 3 . 4
4.4 - 5.0
4.8 - 5 . 6
6 . 4 - 7 . 2
6.7 - 7.8
6.4 - 7.6
8 . 8 - 1 0.4
1 3 .5 - 1 5 . 8
1 9.4 - 22.8
29.5 - 34 . 5
+ C
PROGRAMMER
1
�- - - - - ,
FLUX SHIFT
TRIP DEVICE
( 48V
I
Short Time
®
Instantaneous
@
Time Pickup
) (
Delay
Band Multiple
(Seconds)
of L
Maximum
0.35
In termed .
4 , 5 , 6,
0.21
8, 10, 1 2 (L)
Minimum
0.095
UNIT
de I
(TO SCR
ANODE)
)
57