6F2S1915 (0.46)
GRZ200 (Soft 031 & 032)
- 53 -
the power swing remains within the shaded area of the rectangle between the outer and inner
elements. A delayed pick-up timer, [
TPSBS
] is initiated when the locus passes through the
PSBSOUT element and continues until the PSBSIN element operates in order to measure the
time duration for the locus to pass through the shaded area. If this time duration is longer
than the set value of the delayed pick-up timer [
TPSBS
], the PSBS element will operate to
block the operation of the distance protection trip signal.
Other than the power swing condition, measured impedance locus may stay in the PSBS
zone for a certain time which is much longer than the PSBS detection timer [
TPSBS
]. In this
case, the PSBS output can be reset forcibly when the locus remains in the PSBS zone for
another timer setting [
TPSBSFR
] and scheme switch [
PSBSFR
] is set to
On
.
If PSB operation is not required when a fault is occurring during the power swing event,
set
On
for the scheme switch [
PSBSRS
]; accordingly, PSB operation cannot work when the
fault is detected by the operation of EFL or OCN-PS element (i.e., ZS/ZG element is able to
work even if the PSB operates). It is also possible to remove the PSB operation by utilizing an
external reset signal, which can be injected at PLC connection point ‘PSBS F.RESET’.
Another delayed timer resets the trip block signal that is generated by the PSBS element
when the power swing is detected after the PSBSOUT operation is removed; 500ms is the value
set for the delayed pick-up timer.
Similarly, a PSB element is also provided for ZG and its operation is termed as PSBG
(See Figure 2.1-29). The setting of PSBGs is similar to those of PSBSs.
PSBS
OUT
AB
BC
CA
&
&
&
&
PSBS
IN
AB
BC
CA
&
&
&
8400081B65
8500081B66
8600081B67
8000081B62
8100081B63
8200081B64
≥1
≥1
1
1
&
t 0
TPSBS
0.02 to 0.100s
t 0
0.5s
≥1
t 0
TPSBSFR
0.0 to 10.00s
&
PSBSFR
On
S
R
OCCR-A
OCCR-B
OCCR-C
From
DISTANCE COMMON
8000081B61
1
PSBS_BLOCK
800008EBB0
8000081BB0
≥1
EFL
PSBS F.RESET
810008EBB1
8100081BB1
1
&
S
R
8100081B60
PSBS DET
PSBS-CVTF-BLK
To VTF and CTF
&
≥1
OCN-PS
≥1
PSBSRS
On
&
&
&
8000001C20
8100001C21
8200001C22
8300001C27
Figure 2.1-28 PSBS logic
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 ...
Страница 1563: ......