Interlocking For Double Cb Bay Db (3) - ABB REC670 Applications Manual

Relion 670 series, bay control

Hide thumbs Also See for REC670:

Table of Contents

Interlocking for double CB bay DB (3)

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 167.

ANSI04000518 V1 EN-US

Switchyard layout double circuit breaker

Three types of interlocking modules per double circuit breaker bay are defined.

DB_BUS_A (3) handles the circuit breaker QA1 that is connected to busbar WA1 and

the disconnectors and grounding switches of this section. DB_BUS_B (3) handles the

circuit breaker QA2 that is connected to busbar WA2 and the disconnectors and

grounding switches of this section.

For a double circuit-breaker bay, the modules DB_BUS_A, DB_LINE and

DB_BUS_B must be used.

Configuration setting

For application without 989 and 989G, 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-UUS A

en04000518_ansi.vsd

Bay control REC670 2.2 ANSI

Application manual

IP14167-1 v2

M13585-3 v10

Show Quick Links

Table of Contents