Section 2 Application; General Ied Application - ABB REC670 Applications Manual

1MRK 511 401-UEN A
Section 2
2.1
Bay control REC670 2.2 IEC
Application manual
Application

General IED application

The Intelligent Electronic Device (IED) 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 where the IEC 61850–8–1 Ed 1 or Ed 2
station bus features of the IED can be fully utilized. It is used for station-wide
interlocking via GOOSE messages and vertical client-server MMS communication
to a local station or remote SCADA operator workplace. This supports the
architecture with distributed control IEDs in all bays with high demands on
reliability. Redundant communication is obtained through the built-in PRP and
HSR features which can be used in star or ringbus architectures. The IED can be
used on all voltage levels. It is suitable for the control of all apparatuses in any type
of switchgear arrangement.
The control is performed from remote (SCADA/Station) through the IEC 61850–
8–1 Ed1 or Ed2 station communication or from the built-in multi-display local
HMI. Cyber security measures are implemented to secure safe autonomous
operation of the protection and control functions even if simultaneous cyber attacks
occur. For all common types of switchgear arrangements, there are different pre-
configurations for control and interlocking. One control IED can be used for single
bay or multi-bay applications. The control operation is based on the select-before-
execute principle to give highest possible security. There are synchrocheck
functions available to assist optimal breaker closing at the right instance in
synchronous as well as asynchronous networks.
A number of protection functions are available for flexibility in use for different
station types and busbar arrangements. To fulfil the user's application requirements,
the IED features, for example, up to six instantaneous phase and earth overcurrent
functions, 4–step directional or non-directional delayed-phase and earth
overcurrent functions, thermal overload and frequency functions, two instances of
2–step under- and overvoltage functions, autorecloser functions and several
different measuring functions. This, together with the multi-display local HMI that
can show one or more pages per feeder allows using the IED for protection and
control for up to six bays in a substation.
The auto-reclose for single-, two-, and/or three-phase reclose includes priority
circuits for multi-breaker arrangements. It co-operates with the synchrocheck
function with high-speed or delayed reclosing. Several breaker failure functions are
available to provide a breaker failure function independent from the protection
IEDs, also for a complete one- and a half breaker diameter.
Section 2
Application
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