6F2S1915 (0.46)
GRZ200 (Soft 031 & 032)
- 397 -
Trip circuit (TRC)
The trip circuit (TRC) scheme issues trip commands to the circuit breakers (CB#1, CB#2) when
it receives trip signals from the protection functions (which are identified with ‘FC9’, etc. to
represent ZS relay, etc.). The TRC function is able to receive an alternate trip signal generated
by an additional relay external to the IED using PLC connection points via the binary IO
module (BIO)†. If the additional relay can provide a check-signal to condition tripping,
increased reliability can be achieved within the IED when using the check-signal as an input
to the TRC logic (i.e., fail-safe operation is realized by the operation of the additional relay).
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Note:
The implementation of particular features is dependent upon the selection of
hardware and the configuration of functions. Several IED models do not support certain
features. To determine whether a particular feature has been implemented within an IED,
identify the IED ordering number; and check the order number for the “G&T position” whilst
referring to the comparison table below. For more information, see
Appendix: Ordering
.
Table 2.26-1 Comparative table in respective ordering numbers
Sec.
Feature
Ordering No. at “G&T”
31
32
–
Main features
✓
✓
✓
: Applicable NA: Not applicable
)
Figure 2.26-1 shows that the function is made with following logics:
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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