Interlocking For 1 1/2 Cb Bh - ABB REC670 Applications Manual

Relion 670 series, bay control

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Interlocking for 1 1/2 CB BH

The interlocking for 1 1/2 breaker diameter (BH_CONN, BH_LINE_A,

BH_LINE_B) functions are used for lines connected to a 1 1/2 breaker diameter

according to figure 168.

IEC04000513 V1 EN-US

Switchyard layout 1 1/2 breaker

Three types of interlocking modules per diameter are defined. BH_LINE_A and

BH_LINE_B are the connections from a line to a busbar. BH_CONN is the

connection between the two lines of the diameter in the 1 1/2 breaker switchyard

For a 1 1/2 breaker arrangement, the modules BH_LINE_A, BH_CONN and

BH_LINE_B must be used.

Configuration setting

For application without QB9 and QC9, just set the appropriate inputs to open state

and disregard the outputs. In the functional block diagram, 0 and 1 are designated

0=FALSE and 1=TRUE:

1MRK 511 401-UEN A

IP14173-1 v3

en04000513.vsd

Bay control REC670 2.2 IEC

Application manual

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