GE AKR-4-30 Maintenance Manual Supplement page 30

GEI-86134, Power Circuit Breakers
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1
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·
NOTE
4th wire Ground sensor tap must be set some
phose sensor top
OS
.
G E N E R A L E L E C T R I C
X
Current Sensor Taps (Amperes)
=
AKT AKRT 5 0 800. 1 20 0 . 1 600. 2000
A K - 7 5 I 200, 1 6 00 2000. 3000
A K R - 7 5 1 2 00 1 60 0 . 2000, 3 2 0 0
2-i8 1 l M 1
A K AKR- 1 00 1 600 2000. 3 0 0 0 , 4 0 0 0
30
2
MULTIPLES OF CURRENT SENSOR TAP (X)
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4
MULTIPLES OF C U RRENT SENSOR TAP
AK/ AKR LOW-VOLTAGE POWER CIRCUIT BREAKERS
ssT'"'
SOLID-STATE OVERCURRENT TRIP DEVICE
Ground Trip Time-current Curves
20C to +
- CurYet apply at 50/60 Hertz
From 70C Programmer A.mb1enl
GENERAL ELECTRIC CO., CIRCUIT PROTECTIVE DEVICES DEPT., PLAINVI LLE, CONN.
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(X)
Ground Fault Pickup:
AKT;AKRT-50
AK-75
A K R - 7 5
A K / A K R - 1 00
06062
Ground Fault Delay Bands
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1
·
:
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1
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, I
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GES-60358
Programmer &
Set Points
&
&
.2x, . 2 5 x , .3x, 4x, .Sx. .6x
&
2 x , .22x . . 2 5 x . . 3 x , .35x, X . 4 x
2 x . . 2 2 x . . 2 5 x , . 3 x . 3 5 x . 3 7 x
&
. 1 8x , . 2 x , . 2 2 x , . 2 S x , . 2 7 x . 3 x
Where sensor top settinq
=
Maximum, Intermediate Minimum