Toshiba GR200 Series - (ii)-3 Provision of trigger signals to Recording functions; (ii)-4 Provision for distance relay; (iii) CB trip signal production; (iii)-1 CB trip signals for 1 CB system

6F2S1914 (0.49)
GRL200 (Soft 033 & 037)
- 414 -
Provision of trigger signals to Recording functions
The ‘TRIP COMMMAND1-A, -B, -C’ and ‘TRIP COMMMAND2-A, -B, -C’ signals are viable to
operation of Recording function, which we shall see in Chapter Recording function .
Provision for distance relay
The ‘GEN.TRIP’ signal is provided to direct the operation of the UVPWI relay in the distance
protection function, which we shall see in Chapter Relay application: Distance protection .
(iii) CB trip signal production
As illustrated in Figure 2.33-3, the ‘TRIP COMMMAND1-A, -B, -C’ and ‘TRIP COMMMAND2-
A, -B, -C’ signals are transferred to trip coils of the CB#1 and CB#2 when the signals “OPT-
TRIP-A, -B, and -C” or “OPT-TRIP” enter into the TRC function.
CB trip signals for 1CB system
When the TRC function operates in a single CB (1CB) system; the “TRIP COMMMAND1-A, -
B, -C” signals should be connected with BO circuits.
Table 2.33-7 Output signals for single CB#1
Output signals
Usage of signals
TRIP-COMMMAND1-A
CB trip in phase A
TRIP-COMMMAND1-B
CB trip in phase B
TRIP-COMMMAND1-C
CB trip in phase C
CBs trip signals for 1.5CB system
When the TRC function can operate in a single-and-a-half breaker system (1.5CB); the other
“TRIP COMMMAND2-A, -B, -C” signals also should be connected with other BO circuits. Table
2.33-8 summarizes the outputs signals of the TRC function in the 1.5CB system.
Table 2.33-8 Output signals for CB#1 and CB#2 in 1.5CB system
Output signals
Usage of signals
TRIP-COMMMAND1-A
CB#1(Bus CB) trip in phase A
TRIP-COMMMAND1-B
CB#1(Bus CB) trip in phase B
TRIP-COMMMAND1-C
CB#1(Bus CB) trip in phase C
TRIP-COMMMAND2-A
CB#2(Center CB) trip in phase A
TRIP-COMMMAND2-B
CB#2(Center CB) trip in phase B
TRIP-COMMMAND2-C
CB#2(Center CB) trip in phase C
(iv) Sub-signal generation
In a similar way to the Trip-signal collection, the Sub-signal generation groups the blocking
signals for ARC operation; it groups them into ‘GEN.ARC-BLOCK’ signal, as illustrated in
Figure 2.33-4. Blocking signal from the CBF function is also integrated into the ‘GEN.ARC-
BLOCK’ signal; then it is transferred to the ARC function.