Station communication
Operational information and controls are available through a
wide range of communication protocols including IEC 61850
Edition 2. IEC 61850-9-2 LE, IEC 60870-5-103. IEC
60870-5-104. Modbus® and DNP3. The Profibus DPV1
communication protocol is supported via the protocol
converter SPA-ZC 302. Full communication capabilities, for
example, horizontal communication between the relays, are
only enabled by IEC 61850.
The IEC 61850 protocol is a core part of the relay as the
protection and control application is fully based on standard
modelling. The relay supports Edition 2 and Edition 1 versions
of the standard. With Edition 2 support, the relay has the latest
functionality modelling for substation applications and the best
interoperability for modern substations. The relay supports
flexible product naming (FPN) facilitating the mapping of relay’s
IEC 61850 data model to a customer defined IEC 61850 data
model.
The IEC 61850 communication implementation supports
monitoring and control functions. Additionally, parameter
settings, disturbance recordings and fault records can be
accessed using the IEC 61850 protocol. Disturbance
recordings are available to any Ethernet-based application in
the standard COMTRADE file format. The relay supports
simultaneous event reporting to five different clients on the
station bus.
The relay can send binary and analog signals to other devices
using the IEC 61850-8-1 GOOSE (Generic Object Oriented
Substation Event) profile. Binary GOOSE messaging can, for
example, be used for protection and interlocking-based
protection schemes. The relay meets the GOOSE performance
requirements for tripping applications in distribution
substations, as defined by the IEC 61850 standard (class P1.
<3 ms data exchange between the devices). The relay also
supports the sending and receiving of analog values using
GOOSE messaging. Analog GOOSE messaging enables easy
transfer of analog measurement values over the station bus,
thus facilitating, for example, the sending of measurement
values between the relays when controlling transformers
running in parallel.
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