6F2S1915 (0.46)
GRZ200 (Soft 031 & 032)
- 161 -
energized current is smaller than the setting [
OC1
]. The reducing degree will be
determined with the reset curve characteristics defined in the standards.
Note: For the setting [
OC1-Rtimer
]=
DEF
(definite-time-reset), the integrated value shall
be zero when an energized current is smaller than the setting [
OC1
], when the
small energized current is continued for timer setting [
TOC1R
]. The integrated
value will not be zero when the energized current does not flow small for the
setting [
TOC1R
].
DEF
is allowed to set in the IEEE, US, and ORG.
DEF
is set
unconditionally in the IEC and UK (see Table 2.5-5).
Table 2.5-4 Constants for inverse-time-reset characteristics
Curve Type
IEC 60255-151
Curve Description
kr
sec
Β
A
IEC Normal Inverse (IEC-NI)
N/A
N/A
B
IEC Very Inverse (IEC-VI)
N/A
N/A
C
IEC Extremely Inverse (IEC-EI)
N/A
N/A
-
UK Long Time Inverse (UK-LTI)
N/A
N/A
D
IEEE Moderately Inverse (IEEE-MI)
4.85
2
E
IEEE Very Inverse (IEEE-VI)
21.6
2
F
IEEE Extremely Inverse (IEEE-EI)
29.1
2
-
US CO8 inverse (US-CO8)
5.95
2
-
US CO2 short time inverse (US-CO2)
2.261
2
Figure 2.5-6 Inverse-time-reset characteristics curves
Figure 2.5-7 illustrates that an integrating value will be influenced dependent on the
DEP
or
DEF
setting. An energized quantity (I), where I is greater than a threshold setting
[
OC1
], will make an integrating value, which can determine how the element operates. If the
Summary of Contents for GR 200 Series
Page 1047: ...6F2S1915 0 46 GRZ200 Soft 031 032 1026 Figure 8 3 4 Screen shot from GR TIEMS ...
Page 1354: ...6F2S1915 0 46 GRZ200 Soft 031 032 1333 Appendix 1 Signal list for common function ...
Page 1410: ...6F2S1915 0 46 GRZ200 Soft 031 032 1389 This page is intentionally blank ...
Page 1480: ...6F2S1915 0 46 GRZ200 Soft 031 032 1459 Appendix 6 Ordering ...
Page 1497: ...6F2S1915 0 46 GRZ200 Soft 031 032 1476 Appendix 7 Technical data ...
Page 1518: ...6F2S1915 0 46 GRZ200 Soft 031 032 1497 Appendix 8 Manufacture setting ...
Page 1523: ...6F2S1915 0 46 GRZ200 Soft 031 032 1502 Appendix 10 CT requirement ...
Page 1531: ...6F2S1915 0 46 GRZ200 Soft 031 032 1510 Appendix 12 Engineering exercise ...
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