6F2S1915 (0.46)
GRZ200 (Soft 031 & 032)
- 42 -
Table 2.1-2 Zone element, characteristics and directional
Zo
ne
Eleme
nt
Pur
pose
Dire
ctio
nal
Cha
racte
ristic
Set the
‘Knee’
Fo
rwar
d
Reve
rse
Non
-d
ir
ec
ti
ona
l
Quadrilatera
l
MHO
Set Z
Set X
1
Z1S
/Z1G
Protection for Zone 1 (Relay
reach
≤
80 % )
Yes
Yes
Yes
Yes
Yes
Yes
Yes
1X
Z1XS
Z1XG
Protection for Zone 1 extension
(Relay reach
≤
100 %)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
2
Z2S
/Z2G
/
Back up for Z1S, Z1X
Yes
Yes
Yes
Yes
Yes
Yes
No
3
Z3S
/Z3G
Back up for Z1S, Z1X
Yes
Yes
Yes
Yes
Yes
Yes
No
4
Z4S
/Z4G
Back up for Z1S, Z1X
Yes
Yes
Yes
Yes
Yes
Yes
No
5
Z5S
/Z5G
Protection for over Zone 1
extension (Relay reach > 100 %)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Charging current compensation
When this distance protection function is applied to underground cables or long-distance
overhead lines, the effect of charging current is to be considered; it appears as a distance
measurement error to the fault. In order to suppress the effect and maintain the high-accuracy
distance-measurement capability, the charging current compensation function should be used.
Compensation is recommended if the minimum fault current is three times less than the
charging current.
The charging current compensation function has common scheme switches for both ZS
and ZG. The
On
setting is selected for the scheme switch [
Z-IcC.EN
] along with a setting value
for the setting [
Z-IcC
].
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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