Toshiba GR-200 Series Instruction Manual page 511

Busbar1-A
Busbar2-A
Q1
Q0
Q9
Figure 4.2-2 Example of device status and Interlock-check
In accordance with the arrangement of the devices shown in Figure 4.2-2, interlock-check
formulae can be configured from equations (4.2-1) to (4.2-9). The status of respective devices,
(stVal) and interlock operators ("•" and "+") are placed on the right-hand side of the equations;
and the interlock condition (e.g. Q0(Closing)) is placed on the left-hand side of the equations.
The interlock operators are also shown in Table 4.2-1.
Q1 = (Q0
Q2 = (Q0
Q0 ( Closing
where,
Q0:
Q1, Q2, Q9:
Q52, Q53, Q8, Q15, Q25:
63QBE:
63QBF:
63GBE:
Q1B
Q2
Q52
Q0B
Q53
Q8
Q69
F52VT
F27L
̅̅̅̅̅ ∙ Q52 ̅̅̅̅̅ ∙ Q53
̅̅̅̅ ∙ Q2 ̅̅̅̅ ∙ Q15
+ ( Q2 ∙ Q0 ∙ Q9 ∙ Q0B ∙ Q1B ∙ Q2B )
̅̅̅̅ ∙ Q1 ̅̅̅̅ ∙ Q25 ̅̅̅̅̅ ∙ Q52 ̅̅̅̅̅ ∙ Q53
+ ( Q1 ∙ Q0 ∙ Q9 ∙ Q0B ∙ Q1B ∙ Q2B )
̅̅̅̅̅ ∙ Q53
̅̅̅̅ ∙ Q52
Q9 = (Q0
̅̅̅̅̅̅̅̅̅ ∙ 63GBE ̅̅̅̅̅̅̅̅̅
‡
) = 63QBE
̅̅̅̅ ∙ Q2 ̅̅̅̅ ∙ Q9
∙ ( ( Q1
∙ Closing⁡Blocking
̅̅̅̅̅̅̅̅̅ ∙ 63GBE
‡
Q0 ( Opening ) = 63QBF
̅̅̅̅ ∙ Q69 ∙ F27L(No⁡voltage) ∙ F52VT )
Q8 = ( Q9
̅̅̅̅ ∙ Q1
Q52 = ( Q9
̅̅̅̅ ∙ Q1
Q53 = ( Q9
Q69 = Q8
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.)
- 492 -
Q15 Q25
Q2B
̅̅̅̅̅ )
̅̅̅̅̅ )
̅̅̅̅̅ ∙ Q8
̅̅̅̅ )
̅̅̅̅ ) + ( ( Q1 + Q2 ) ∙ Q9))
̅̅̅̅̅̅̅̅̅
̅̅̅̅ ∙ Q2 ̅̅̅̅ )
̅̅̅̅ ∙ Q2 ̅̅̅̅ )
6F2T0200 (0.15)
(4.2-1)
(4.2-2)
(4.2-3)
(4.2-4)
(4.2-5)
(4.2-6)
(4.2-7)
(4.2-8)
(4.2-9)
GRE200 (1,2)