The IED can be used in applications with IEC/UCA 61850-9-2LE process bus with up to
eight merging units (MU) depending on other functionality included in the IED. Each MU
has eight analogue channels, normally four currents and four voltages. Conventional and
Merging Unit channels can be mixed freely in the application.
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
with delay mode, ensures simple and fast testing and commissioning.
Disturbance recorder and fault locator are available to allow independent post-fault
analysis after primary disturbances.
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.
Flexible Product Naming allows the customer to use an IED-vendor independent IEC
61850 model of the IED. This customer model will be used as the IEC 61850 data model,
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.
Communication via optical connections ensures immunity against disturbances.
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.
2.2 Main protection functions
Table 2: Example of quantities
2
= number of basic instances
0-3 = option quantities
3-A03 = optional function included in packages A03 (refer to ordering details)
Section 2 1MRK 506 369-UUS -
Application
46 Line distance protection REL670 2.2 ANSI
Application manual
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