is 0.1sec because both master and slave should not send the circuit breaker closing
command at the same time.
15.3 Apparatus control APC
15.3.1 Application
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 314 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 grounding switches
ANSI08000227.vsd
Apparatus
Control
IED
CLOSE/OPEN
Local
HMI
Apparatus
Control
IED
Apparatus
Control
IED
Local
HMI
Local
HMI
CLOSE/OPENCLOSE/OPEN
ANSI08000227 V1 EN
Figure 314: Overview of the apparatus control functions
Section 15 1MRK 506 369-UUS -
Control
680 Line distance protection REL670 2.2 ANSI
Application manual
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