GE Industrial Solutions Entellisys System User Manual User Manual
Page 53
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Overcurrent protection
53
5
Entellisys limits the maximum Instantaneous Overcurrent Pickup Setting (P
IOC
) Multiplier based
on frame type and whether or not Short Time protection is enabled. This relationship is shown
for EntelliGuard circuit breakers in Table 5-3 below:
Parameters such as IOC pickup, ST pickup, curve type and delay bands for Short Time
protection are set in the HMI, as shown in Figure 5-2.
Figure 5-2 Setting parameters of IOC/ST protection for Breaker 2
Table 5-3 Maximum P
IOC
Breaker Frame
Size
Maximum P
IOC
with
Short Time
Maximum P
IOC
without
Short Time
800
15
10
1600
15
10
2000
15
10
3200
13
10
4000
9
9
5000
7
7
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