Application; General Ied Application - ABB Relion 670 Series Applications Manual

1MRK 511 358-UUS A
Section 2
2.1

General IED application

The 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 feature 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 provide a breaker failure
function independent from the protection IEDs, also for a complete breaker-and-a-half diameter.
Disturbance recording and fault locator are available to allow independent post-fault analysis after
primary disturbances in case of a failure in the protection system.
Duplex communication channels for transfer of up to 192 intertrip and binary signals are available
on each remote-end data communication card (LDCM). Typical applications are the
communication between IEDs inside the station or with IEDs in a remote station as remote I/O.
The IED can be used in applications with the IEC 61850-9-2LE process bus with up to six Merging
Units (MU).
Logic is prepared with a graphical tool. The advanced logic capability allows special applications
such as automatic opening of disconnectors in multi-breaker arrangements, closing of breaker
rings, load transfer logics and so on. The graphical configuration tool ensures simple and fast
testing and commissioning.
Application manual

Application

Section 2
Application
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