Section 2
Application
2.1
General IED application
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REC650 is used for the control, protection and monitoring of different types of
bays in power networks. The IED is especially suitable for applications in control
systems with distributed control IEDs in all bays with high demands on reliability.
It is suitable for the control of all apparatuses in the following switchgear
arrangements:
•
Single busbar, with a single circuit breaker
•
Double busbar, with a single circuit breaker
The control is performed from remote (SCADA/Station) through various
communication protocols or from the local HMI.
Different control configurations can be used, and one control IED per bay is
recommended. Interlocking modules are available for common types of switchgear
arrangements. The control is based on the select before execute principle to give
highest possible security. A synchronism control function is available to interlock
breaker closing. A synchronizing function where breaker closes at the right
instance in asynchronous networks is also provided.
Disturbance recording is available to allow independent post-fault analysis after
primary disturbances.
One pre-configured package has been defined for the following application:
•
Single breaker, double busbar (A02)
The package is configured and ready for direct use. Analog and control circuits
have been pre-defined and other signals need to be applied as required for each
application. The pre-configured IED can be changed and adapted to suit specific
applications with the application configuration tool.
The IED can be used in applications with the IEC 61850-9-2LE process bus with
up to four Merging Units (MU). Each MU has eight analog channels, four current
and four voltages. Conventional input transformer module and Merging Unit
channels can be mixed freely in your application.
Forcing of binary inputs and outputs is a convenient way to test wiring in
substations as well as testing configuration logic in the IEDs. Basically it means
that all binary inputs and outputs on the IED I/O modules (BOM, BIM and IOM)
can be forced to arbitrary values.
1MRK 511 423-UEN A
Section 2
Application
Bay control REC650 2.2 IEC
23
Application manual
