ABB Relion REC670, Applications Manual

Page: 356 / 658

auto reclosing operation. When the WAIT input is reset at the time of a successful
reclosing of the first circuit breaker, the slave is released to continue the auto reclosing
sequence after the set
tSlaveDeadTime . The reason for shortening the time, for the
normal dead timers with the value of tSlaveDeadTime , is to give the slave permission
to react almost immediately when the WAIT input resets. The minimum settable time
for tSlaveDeadTime is 0.1sec because both master and slave should not send the circuit
breaker closing command at the same time.
14.3 Apparatus control APC
IP14560-1 v2
14.3.1 Application
IP14931-1 v1
M13443-4 v13
The apparatus control is a functionality for control and supervising of circuit breakers,
disconnectors, and grounding switches within a bay. Permission to operate is given
after evaluation of conditions from other functions such as interlocking, synchronism
check, operator place selection and external or internal blockings.
The complete apparatus control function is not included in this product,
and the information below is included for understanding of the
principle for the use of QCBAY, LOCREM, LOCREMCTRL, SCILO,
SCSWI, SXCBR.
Figure 120 shows from which places the apparatus control function receives
commands. The commands to an apparatus can be initiated from the Control Centre
(CC), the station HMI or the local HMI on the IED front.
Section 14
1MRK 511 401-UUS A
Control
350 Bay control REC670 2.2 ANSI
Application manual