6F2S1915 (0.46)
GRZ200 (Soft 031 & 032)
- 273 -
2.16.3
Miscellaneous functions
(i)
Block of UVS operation
Blocking the UVS function may be required when a failure in the voltage transformer occurs.
In this case, the user shall set
Block
for scheme switch [
UVS1-VTFBlk
].
Non
(as a default) is
set for scheme switch [
UVS1-VTFBlk
] in order that the UVS function is not blocked by the
failure.
(ii)
UVS trip signal
The UVS1 element issues a trip signal for the trip circuit (TRC†) when
Trip
is set for scheme
switch [
UVS1-UseFor
] as the normal tripping. However, when an alarm signal in place of the
trip signal is required, the user can set
Alarm
for the scheme switch [
UVS1-UseFor
].
†Note: For more information about tripping, see Chapter
Relay application: Trip circuit.
(iii)
Operation of UVS function
Set
On
for scheme switch [
UVS1-EN
]. Otherwise, set
Off
for the scheme switch [
UVS1-EN
] if
the UVS1 element is not required to operate.
(iv)
Under voltage test
Setting [
UVS-Test
] =
On
is not to operate UVS blocking element (UVSBLK) for testing.
2.16.4
Scheme logic
Figure 2.16-4 show the logic of the UVS function. PLC connection points “UVS*_BLOCK” are
provided for blocking the operation of the UVS elements. Other PLC connection points
“CB_*PH_OPEN” are provided so that the UVS function can determine its operation using the
open/closed information of a circuit breaker (CB). For testing, the UVS1-PU element is
provided; it generates a pick-up signal when the entering voltage is below the threshold
anytime. For example, in the IDMT characteristic, using both PLC monitoring points
“8000011B20” and “8000011B24” can facilitate to measure the pickup time after the deficiency.
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 ...
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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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