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ABB IRP Instruction Leaflet page 38

Directional overcurrent ground relays

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41-133S
Figure 24: Typical Operating Times For the Instantaneous Overcurrent Unit
38
Figure 23: Typical Operating Times For The Directional Unit
Directional Overcurrent Ground Relays
Types IRP, IRC and IRD
*
Denotes change since previous issue
*Sub 7
538108
Sub 2
538109

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