6F2S1915 (0.46)
GRZ200 (Soft 031 & 032)
- 152 -
Overcurrent protection (OC)
The phase overcurrent (OC) protection is the major protection function and has both time
characteristic and directional elements. Four stages (elements) are available in the OC
protection. The user can select various features using the scheme switches provided. The
elements are named OC1, OC2, OC3, and OC4; and they operate independently.
To simplify the description, only OC1 is discussed but is applicable to the other OCs;
hence, read the expression for OC1 as OC2, OC3, and OC4 at each stage unless a special
explanation or instruction has been provided.
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Note:
The implementation of particular features is dependent upon the selection of
hardware and the configuration of functions. Several IED models do not support certain
features. To determine whether a particular feature has been implemented within an IED,
identify the IED ordering number; and check the order number for the “G&T position” whilst
referring to the comparison table below. For more information, see
Appendix: Ordering
.
Table 2.5-1 Comparative table in respective ordering numbers
Sec.
Feature
Ordering No. at “G&T”
31
32
–
DT characteristic
✓
✓
–
IDMT characteristic
✓
✓
✓
: Applicable NA: Not applicable
Содержание GR 200 Series
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Страница 1354: ...6F2S1915 0 46 GRZ200 Soft 031 032 1333 Appendix 1 Signal list for common function ...
Страница 1369: ...6F2S1915 0 46 GRZ200 Soft 031 032 1348 Unit mm Panel cut out for 1 2 case size Figure 2 2 3 Panel cutout figure 1 2 size case ...
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Страница 1480: ...6F2S1915 0 46 GRZ200 Soft 031 032 1459 Appendix 6 Ordering ...
Страница 1497: ...6F2S1915 0 46 GRZ200 Soft 031 032 1476 Appendix 7 Technical data ...
Страница 1518: ...6F2S1915 0 46 GRZ200 Soft 031 032 1497 Appendix 8 Manufacture setting ...
Страница 1520: ...6F2S1915 0 46 GRZ200 Soft 031 032 1499 Appendix 9 Matrix between VCT terminals and relay applications ...
Страница 1523: ...6F2S1915 0 46 GRZ200 Soft 031 032 1502 Appendix 10 CT requirement ...
Страница 1531: ...6F2S1915 0 46 GRZ200 Soft 031 032 1510 Appendix 12 Engineering exercise ...
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