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1MRK 505 370-UEN D
Optionally available four-stage, non-directional overcurrent protections, one for every CT input
into the IED, provide remote backup functionality for connected feeders and remote-end
stations.
Optionally available voltage and frequency protection functions enable to include voltage
release criterion for busbar protection or to integrate independent over-, under-voltage
protection for the bus in the busbar protection IED.
Optionally available over-current, thermal overload and capacitor bank protection functions
open possibilities to integrate protection of shunt reactors and shunt capacitor banks into the
busbar protection IED.
It is normal practice to have just one busbar protection IED per busbar. Nevertheless some
utilities do apply two independent busbar protection IEDs per zone of protection. This IED fits
both solutions.
A simplified bus differential protection for multi-phase faults and earth faults can be obtained
by using a single, one-phase IED with external auxiliary summation current transformers.
The IED can be used in applications with IEC/UCA 61850-9-2LE process bus with up to eight
merging units (MU) depending on the other functionality included in the IED. Each MU has
eight analog channels, four currents and four voltages. Conventional and Merging Unit
channels can be mixed freely in the 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, IOM & SOM) can be forced to arbitrary values.
Central Account Management is an authentication infrastructure that offers a secure solution
for enforcing access control to IEDs and other systems within a substation. This incorporates
management of user accounts, roles and certificates and the distribution of such, a procedure
completely transparent to the user.
The Flexible Product Naming allows the customer to use an IED-vendor independent IEC 61850
model of the IED. This customer model will be exposed in all IEC 61850 communication, but all
other aspects of the IED will remain unchanged (e.g., names on the local HMI and names in the
tools). This offers significant flexibility to adapt the IED to the customers' system and
standard solution.
Optional apparatus control for up to 30 objects can provide a facility to draw simplified single
line diagram (SLD) of the station on the local HMI.
Busbar protection REB670
Application manual
Note that customized REB670 is delivered without any configuration. Thus the
complete IED engineering shall be done by the customer or its system
integrator. In order to secure proper operation of the busbar protection it is
strictly recommended to always start engineering work from the PCM600
project for the pre-configured REB670 which is the closest to the actual
application. Then, necessary modifications shall be applied in order to adopt
the customized IED configuration to suite the actual station layout. The
PCM600 project for the pre-configured REB670 IEDs is available in the
Connectivity Package DVD.
The following tables list all the functions available in the IED. Those functions
that are not exposed to the user or do not need to be configured are not
described in this manual.
Section 2
Application
M11788-3 v10
GUID-F5776DD1-BD04-4872-BB89-A0412B4B5CC3 v1
31
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