6F2S1915 (0.46)
GRZ200 (Soft 031 & 032)
- 257 -
2.14.4
Miscellaneous functions
(i)
OVG operation blocked by the occurrence of VT failure
Blocking the OVG function may be required when a failure in the voltage transformer occurs.
The user shall set
Block
for scheme switch [
OVG1-VTFBlk
].
Non
(as a default) is set for scheme
switch [
OVG1-VTFBlk
] in order that the OVG function is not blocked by the failure.
(ii)
Switch of OVG trip command
The OVG function issues a trip command for the TRC† when
Trip
is set for scheme switch
[
OVG1-UseFor
] as the normal trip operation. However, when an alarm signal in place of the
trip command is required, the user can set
Alarm
for the scheme switch [
OVG1-UseFor
].
†Note: For more information of the trip circuit, see Chapter
Relay application: Trip
circuit.
(iii)
Execution of OVG function
Set
On
for scheme switch [
OVG1-EN
]. Otherwise, set
Off
for the scheme switch [
OVG1-EN
] if
the OVG1 element is not required to operate.
2.14.5
Scheme logic
Figure 2.14-4 shows the OVG function logic. Signal connection points “OVG*_BLOCK” are
provided for the block of the operation of the OV elements. For testing, the OVG1-PU element
is provided; it generates a pick-up signal when the entering voltage is excesses of the threshold
anytime. Thereby, in the IDMT characteristic, using both monitoring points “8000011C23” and
“8000011C27” can facilitate to measure the pickup time after the excess.
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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