Eaton EDR 3000 User Manual

EDR-3000 IM02602003E
50R DEFT Calculated Ground Fault Protection Module
Elements
50R[1] ,50R[2]
If using inrush blockings, the tripping delay of the ground current protection
functions must be at least 30 ms or more in order to prevent faulty trippings.
All ground current elements are identically structured.
For each element, the following characteristics are available:
•DEFT (definite time).
For tripping curves please refer to the “Appendix/Instantaneous Current Curves (Ground Current Calculated)” section.
The ground current can be measured either directly via a zero sequence transformer or detected by a residual
connection. The ground current can alternatively be calculated from the phase currents. However, this is only possible
if the current transformers are Wye-connected.
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Eaton EDR 3000 Specifications

General

Brand	Eaton
Model	EDR 3000
Category	Relays
Language	English