GUID-6802EC2A-DC22-44E6-8BD2-DF7DCEAAEBA0 V1 EN
Figure 8. Line differential protection of a feeder using the standard configuration E
F
igure 8 illustrates line differential protection of a feeder using
the standard configuration E, in which current sensors
(Rogowski coil) and voltage sensors (voltage divider) are used
for the measurements. Additionally, protection is offered for an
in-zone power transformer, when available and located in the
protection zone. The standard configuration E has been pre-
configured especially for ABB switchgears, for example,
UniGear Digital. However, the use of this configuration is not
restricted for this purpose only.
Standard configurations D and E are not designed for using all
the available functionality content in one relay at the same time.
Frequency protection functions and third instances of voltage
protection functions must be added with the Application
Configuration tool. To ensure the performance of the relay, the
user-specific configuration load is verified with the Application
Configuration tool in PCM600.
5. Supported ABB solutions
ABB’s 615 series protection and control relays together with
the Substation Automation Unit COM600 constitute a genuine
IEC 61850 solution for reliable power distribution in utility and
industrial power systems. To facilitate and streamline the
system engineering, ABB's relays are supplied with
connectivity packages. The connectivity packages include a
compilation of software and relay-specific information,
including single-line diagram templates and a full relay data
model. The data model also includes event and parameter lists.
With the connectivity packages, the relays can be readily
configured using PCM600 and integrated with the Substation
Automation Unit COM600 or the network control and
management system MicroSCADA Pro.
The 615 series relays offer native support for IEC 61850 Edition
2 also including binary and analog horizontal GOOSE
messaging. In addition, process bus with the sending of
sampled values of analog currents and voltages and the
receiving of sampled values of voltages is supported.
Compared to traditional hard-wired, inter-device signaling,
peer-to-peer communication over a switched Ethernet LAN
offers an advanced and versatile platform for power system
protection. Among the distinctive features of the protection
system approach, enabled by the full implementation of the IEC
61850 substation automation standard, are fast
communication capability, continuous supervision of the
integrity of the protection and communication system, and an
inherent flexibility regarding reconfiguration and upgrades. This
protection relay series is able to optimally utilize interoperability
provided by the IEC 61850 Edition 2 features.
At substation level, COM600 uses the data content of the bay-
level devices to enhance substation level functionality. COM600
features a Web browser-based HMI, which provides a
customizable graphical display for visualizing single-line mimic
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