GE L90 Instruction Manual page 282

Line current differential system
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PRODUCT SETUP
CHAPTER 5: SETTINGS
enables interoperability among intelligent electronic devices (IEDs) from different suppliers and interoperability among
software configuration tools from different suppliers. Interoperability in this case is the ability for IEDs to operate on the
same network or communication path sharing information and commands, and for configuration tools to understand
each other's configuration files.
The UR family supports a large subset of IEC 61850 features. These are detailed in the UR Family Communications Guide
and include the information model, GOOSE publish, GOOSE subscribe, buffered report server, unbuffered report server, and
Manufacturing Message Specification (MMS) query, read, write, and control services. In addition, the URs and their
EnerVista UR Setup software support IEC 61850 Substation Configuration Language (SCL) file import/export and merging.
Whereas prior UR releases used edition 1.0 of IEC 61850, this release uses edition 2.0, with certain modifications according
to IEC/TR 61850-90-5. Only edition 2.0 61850 configuration tools can interoperate with edition 2.0 devices, such as the UR
7.3x release. This UR release uses edition 2.0 SCL, which differs from edition 1.0 SCL. GSSE, fixed GOOSE, and fixed report
services of previous releases are no longer supported, and thus UR devices of previous releases using these features have
to be converted to configurable GOOSE to communicate with a 7.3x or later device.
Many settings of UR protection, control, and monitoring elements, that is to say elements that are not concerned with the
IEC 61850 protocol, can nevertheless be accessed via IEC 61850. These settings are documented elsewhere in this Settings
chapter. This section of the Settings chapter deals solely with the settings that configure the IEC 61850 protocol itself.
The maximum number of simultaneous clients supported by the UR family is five.
EnerVista setup for IEC 61850
The EnerVista UR Setup software provides the interface to configure L90 settings for the IEC 61850 protocol. This section
describes this interface. The software also supports import/export and merging of IEC 61850 Substation Configuration
Language (SCL) files as documented in the UR Family Communications Guide.
The IEC 61850 protocol configuration settings cannot be accessed through the UR front panel and are instead accessible
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with the EnerVista software, via MMS query, read, and write services, or via 61850 SCL file transfer. Accordingly, whereas
other settings are presented in this manual as they appear on the front panel, IEC 61850 settings are presented as they
appear in the software. See the UR Family Communications Guide for MMS and SCL access. Note that if you update the IEC
61850 settings in the EnerVista software by writing to them by MMS while the corresponding IEC 61850 panel is open in
EnerVista, you need to close then open the panel in EnerVista for the correct readings to display.
IEC 61850 protocol configuration settings are accessed through software panels that are selected either in the Online
Window area (see figure) or the Offline Window area in the EnerVista software.
The EnerVista software also includes an interface that is compatible with firmware versions 5.0 to 7.2 to configure
subscribers. Use the Simplified GOOSE Configurator in the Offline Window area.
Figure 5-18: IEC 61850 protocol panel in EnerVista software
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L90 LINE CURRENT DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL

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