Section 2 Application; Rec650 Application - ABB REC650 Applications Manual

1MRK 511 286-UUS A
Section 2
2.1
Application manual
Application

REC650 application

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 single busbar single CB, double busbar single CB switchgear
arrangement.
The control is performed from remote (SCADA/Station) through the communication or
from 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.
A number of protection functions are available for flexibility in use for different station
types and busbar arrangements. The auto-reclose includes priority circuits for single-
breaker arrangements. It co-operates with the synchronism check function with high-
speed or delayed reclosing.
High set instantaneous phase and ground overcurrent, 4 step directional or non-directional
delayed phase and ground overcurrent, thermal overload and two step under- and
overvoltage functions are examples of the available functions allowing user to fulfill any
application requirement.
Disturbance recording is available to allow independent post-fault analysis after primary
disturbances.
Three packages have been defined for following applications:
• Single breaker for single busbar (A01A)
• Single breaker for double busbar (A02A)
• Bus coupler for double busbar (A07A)
The packages are configured and ready for direct use. Analog and control circuits have
been pre-defined. Other signals need to be applied as required for each application. The
Section 2
Application
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