Toshiba GR200 Series Instruction Manual page 120

Operation of Command-trip
2.4.1
An example (Figure 2.4-1) shows that a bus-bar protection is configured using 10 CHs. The
example shows how the initiation of Command-trip is triggered by falling gas-pressure. The
falling gas-pressure signal can be sent to CH1; then, the Replica evaluation
determines which protection-zones and CHs are appropriate to issue Command-trip signal to
the TRC. In this case, the CHs protecting Zone A (i.e., CH1, CH2, CH4, and CH6) are able to
issue Command-trip signal to the TRC; hence, the TRC will issues a trip command for CBs,
which are associated with Zone A.
Note: For more information, see
1
protection IED (6F2S1923)
CH1
Figure 2.4-1 Command-trip operation example
Operation of Command-transfer-trip
2.4.2
The COMTP function can also issue Command-transfer-trip signal to the TRC function (For
application of Command-transfer-trip function, see section 2.4.4)
Replica setting procedure for Centralized Busbar
)
CH6
Zone C
CH5
Zone A
Gas pressure
drop
CH2
CH3
Trip command issued with Command-trip signal outputted in COMTP
Trip command not issued
- 106 -
Zone D
CH8
CH7
Zone B
CH9
CH10
CH4
Centralized GRB200
(Soft: 030, 031, 032, 033, 034)
6F2S1931 (0.20)
function
1