TABLE 9
ECS TRIP CHARACTERISTICS
X
=
Trip Rating
ECS PROGRAMMER ADJUSTMENT RANGE (Set Points)
in Amperes
Frame
• Sensor Rating
Long Time
Short Time
Breaker
Size
Instantaneous
Type
(Amperes)
(
Sensor
)
Pick
eD
(•L)
Time
Pickup
Time
Pickup
Am�ere
Delay
®
Delay
®
Ratmg
(
Multiple
)
Band
@
(
Multiple
)
Band
@
(
Multiple
)
of
X
(Seconds)
of L
(Seconds)
of L
100, 150, 225,
3, 4, 5,
Al{R-30
800
300, 400,
6, 8, 10 (L)
600, 800
Maximum
Maximum
22
0.35
-or-
300, 400, 600,
. 6, .7, .8,
In
termed.
In
termed .
4, 5, 6,
AKR-50
1600
800, 1200, 1600
.
9
,
1 .0,
10
1 .75, 2,
0.21
8, 10, 1 2
(L)
1.1
(X)
Minimum
2.25, 2.5,
Minimum
4
3, 4
(L)
0.095
AKRT-50
2000
800, 1200,
1600, 2000
CD
Pickup tolerance is ±.
9%
®
Pickup tolerance
is ±. 10%
@
Time
delay shown at
600%
of long time pickup setting (6L), at
lower
limit
of band.
@
Time
delay shown at lower limit of band.
TABLE 1 0 - SENSOR R ESISTANCE VALUES
Ampere
Rating
lOO
1 50
225
300
400
600
800
1 200
1 600
2000
Resistance in Ohms
between Term inals
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
1 1 .1 ECS CABLING DIAGRAM
+ A
+ B
+ C
BREAKER
BACK FRAME
r
1
�
LEFT POLE
I
I
CURRENT
SENSOR
I
I
I_ -
LOAD
FLUX SHIFT
TRIP DEVICE
PROGRAMMER
UNIT
�-- - - - ,
( 48V
de I
(TO SCR
ANODE)
FIG. 75. CABLING DIAGRAM FOR ECS TRIP
DEVICE
57
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