Toshiba GR200 Series - 2.10 Distance protection (ZS;ZG)

6F2S1914 (0.49)
GRL200 (Soft 033 & 037)
- 91 -
Distance protection (ZS/ZG)
The distance protection function can provide the user the zone information of the fault
occurrence using relay elements. The user can determine the boundaries of respective zones
using reactance-reaches.
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Note: Several IED models do not have ZS/ZG features. To determine whether the features
are implemented in the IED or not, locate the IED ordering number; and check the order
number at “G&T position” referring to the comparison table below. For more information, see
Appendix: Ordering .
Table 2.10-1 Comparative table in respective ordering numbers
feature
Ordering No. at “G&T”
33
37
ZS
Distance protection(for phase fault) with 6 zones
✓
✓
Power swing block
✓
✓
Switch on to fault protection
✓
✓
ZG
Distance protection(for earth fault) with 6 zones
✓
✓
Power swing block
✓
✓
Switch on to fault protection
✓
✓
✓: Applicable NA: Not applicable