GE AKR-30S Manual page 20

Short-Time Delay (Optional)
Adjustable Instantaneous
Pickup (Standard)
The short-time delay adjust­
ment is used in conjunction
with the short-time pickup
setting to provide a further
refinement of coordination
between circuit breakers. It
establishes the time interval
the breaker will wait before
responding to the short­
circuit current level selected
on the short-time trip point
adjustment.
The instantaneous trip point
determines the level at
which the breaker will trip
without intentional time
delay (0.025 seconds or
less). This i mmediate inter­
ruption occurs only as a
result of a severe overcur­
rent condition, thereby mini­
mizing damage to the electri­
cal system and equipment.
SHORT TIME DELAY
1 2 T IN 1 2 T OUT
MAX MAX
.: : ' ® ' : .
DELAY
@
INSTANTANEOUS PICKUP
3X SX
2X 7X
&
1.5X 9X
10X
OFF
15X 13X
INSTANTANEOUS
PICKUP
1 9