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Instruction Leaflet
DT3000
Page 54
Effective: Date 07/02
I.B. 17555D
For more information visit:
www.cutler-hammer.eaton.com
Supersedes I.B. 17555C dated November 1999
Figure 7-13 ANSI Moderately Inverse Curves (SC-6685-96)
0.01
0.10
1.00
10.00
100.00
1000.00
1
10
100
Multiple of Pickup Current (I/I
pu
)
Trip Time (seconds)
3
5
2
1
0.5
0.3
0.2
0.1
Time
Multiplier
Adjustable Time Multiplier (0.1………5.0)
Tolerance: Time Multiplier Tolerance is ± 10% or ± 0.09s,
whichever is larger (>1.5 x I
pu
)
For Ground Pickup <0.2
pu
: trip time tolerance is ±15%