ABB Relion REC670, Applications Manual

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Section 2 Application
2.1 General IED application
M13637-3 v13
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 ground overcurrent functions,
4–step directional or non-directional delayed-phase and ground 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-pole reclose includes priority circuits
for multi-breaker arrangements. It co-operates with the synchronism check function
with high-speed or delayed reclosing. Several breaker failure functions are available to
1MRK 511 401-UUS A
Section 2
Application
Bay control REC670 2.2 ANSI 37
Application manual