Interlocking For Double Cb Bay Db (3) - ABB REC650 Applications Manual

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1MRK 511 286-UUS A
10.4.9
10.4.9.1
Application manual
989G_OP = 1
989G_CL = 0
If, in this case, line voltage supervision is added, then rather than setting 989 to open state,
specify the state of the voltage supervision:
989_OP = VOLT_OFF
989_CL = VOLT_ON
If there is no voltage supervision, then set the corresponding inputs as follows:
VOLT_OFF = 1
VOLT_ON = 0

Interlocking for double CB bay DB (3)

Application
The interlocking for a double busbar double circuit breaker bay including DB_BUS_A
(3), DB_BUS_B (3) and DB_LINE (3) functions are used for a line connected to a double
busbar arrangement according to figure 119.
Section 10
Control
253

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