Toshiba GR200 Series Instruction Manual page 849

Q0:
Q1, Q2, Q9:
Q52, Q53, Q8, Q15, Q25:
63QBE:
63QBF:
63GBE:
Closing Blocking:
F27L:
F52VT:
Sign "•":
Sign "+":
†Note: When CB (��0) is open, logic level of ��0
(��0) is closed, logic level of ��0 is "1".
‡Note: For example, on the left-hand side of equation (4.7-5), "Opening" reflects the
control direction of CB (��0).
For example in equation (4.7-12), the interlock condition for DS (Q1) is satisfied when CB
(Q0), DS (Q2), ES for the Bus-bar1-A (Q15), ES (Q52) and ES (Q53) are open. In addition, the
interlock condition for DS (Q1) is also satisfied when DS (Q2), CB (Q0), DS (Q9), CB (Q0), DS
(Q1), and DS (Q2) are closed.
Circuit breaker (CB)†
Disconnecting switch (DS)
Earthing switch (ES)
OIL Pressure switch (e.g., "Off" state is shown at 270 bar or above.)
OIL Pressure switch (e.g., "On" state is shown at 255 bar or below.)
GAS Pressure switch (e.g., "On" state is shown at 6.5 bar or below.)
State of Protection lockout relay ("Off" state means active.)
State of under voltage relay ("On" state means no voltage.)
State of VT MCB switch
Interlock operator "AND"
Interlock operator "OR"
- 826 -
̅̅̅̅ is "1". On the other hand, when CB
6F2S1914 (0.49)
GRL200 (Soft 033 & 037)