50R/67R Deft Calculated Ground Fault Protection - Eaton EDR-5000 Nstallation, Operation And Maintenance Manual

50R/67R DEFT Calculated Ground Fault Protection

Elements
50R[1] ,50R[2]
The following table shows the application options of the earth overcurrent protection element
Applications of the IG-Protection Module
ANSI 50R – Ground overcurrent protection,
non-directional
ANSI 67R – Ground overcurrent protection,
directional
*1 =for wiring see chapter "Connection Examples / VT Wye with Broken Delta"
Criterion
For all protection elements it can be determined, whether the measurement is done on basis of the » Fundamental« or if
» TrueRMS« measurement is used.
VX Selection
Within the parameter menu, this parameter determines, whether the earth current and the residual voltage is
» measured« or » calculated« .
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.
Calculation is only possible, when phase to neutral voltage is applied to the
voltage inputs.
At setting » measured« the quantities to be measured, i. e. Residual voltage
and the measured ground current have to be applied to the corresponding
4 th measuring input.
EDR-5000
Setting in
Device Planning menu
Setting: Non-directional
Device Planning menu
Setting: Forward/Reverse
www.eaton.com
Option
Measuring Mode:
Fundamental/TrueRMS
Measuring Mode:
Fundamental/TrueRMS
VX Selection: measured
IM02602007E
/calculated
*1
512