tSlaveDeadTime
: When activating the
WAIT
input, in the auto recloser set as slave, every dead
timer is changed to the value of setting
tSlaveDeadTime
and holds back the 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.
12.3 Apparatus control
IP14560-1 v3
12.3.1 Application
M13443-4 v14
The apparatus control is a functionality for control and supervising of circuit breakers,
disconnectors, and earthing switches within a bay. Permission to operate is given after
evaluation of conditions from other functions such as interlocking, synchrocheck, 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 137 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.
Station HMI
GW
cc
Station bus
breakers disconnectors earthing switches
IEC08000227.vsd
Apparatus
Control
IED
I/O
Local
HMI
Apparatus
Control
IED
I/O
Apparatus
Control
IED
I/O
Local
HMI
Local
HMI
IEC08000227 V1 EN-US
Figure 137: Overview of the apparatus control functions
Features in the apparatus control function:
Section 12 1MRK 505 370-UEN D
Control
284 Busbar protection REB670
Application manual
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