6F2S1915 (0.46)
GRZ200 (Soft 031 & 032)
- 194 -
2.7.1
Relay polarity
The user can choose either non-directional OCN or directional OCN for each OCN stage. In
addition, the user can further select either the forward or the direction for each of the
directional OCN elements selected.
(i)
Characteristic of a non-directional OCN
The characteristic of the non-directional type (non-directional OCN) is a circle at the origin. A
setting and a scheme switch is used to configure each non-directional OCN element; i.e., the
user can set the threshold value of non-directional OCN element for state 1 using setting
[
OCN1
], provided time characteristic is required for define time delay (DT) described in section
NonDir
is set for the scheme switch [
OCN1-Dir
].
(ii)
Characteristic of directional OCN in the forward
As shown in Figure 2.7-1, the characteristic of the directional-OCN elements in the forward
direction is a semi-circle based upon the border-line; the hatched area shows the operating
region of the directional-OCN.
Figure 2.7-1
Characteristic of the directional-OCN element in the forward direction
Note: Directional characteristic angle (θ) forms the angle between the reference
quantity and the directional characteristic angle line. The half plane
represents the zone of operation bordered on one side by the border line and
extending in the direction that contains both the reference (polarizing) and
operating quantities.
A setting and a scheme switch, as well as the non-directional OCN element, provide the
settings for the directional OCN element: for example, the user can set the threshold value
Reference voltage or
Polarizing voltage (
−V
2
)
Operation (Trip) zone
I2
Non-operation (No trip) zone
θ
φ
Содержание GR 200 Series
Страница 1047: ...6F2S1915 0 46 GRZ200 Soft 031 032 1026 Figure 8 3 4 Screen shot from GR TIEMS ...
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 ...
Страница 1410: ...6F2S1915 0 46 GRZ200 Soft 031 032 1389 This page is intentionally blank ...
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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