Communication - ABB RELION 630 Series Product Manual

Power Management
PML630/Compact Load-Shedding Solution
Product version: 1.2.1
balance calculations for arriving at the load-shedding priority
and to initiate the load-shedding action.
Using the manual load-shedding function, the load-shedding of
multiple load feeders can be initiated based on priorities or the
required total power relief.
The underfrequency-based load-shedding function detects
frequency decay and activates the shedding mechanism
described for fast and manual load-shedding functions.
All load-shedding functions can be active concurrently.

5. Communication

PML630 only supports the IEC 61850 substation
communication standard and its GOOSE and MMS
communication profiles.
PML630 is optimized to interoperate with REF615, REG615,
REM615, RET615, REF620, REM620, RET620, REF630,
REG630, REM630, RET630, RIO600 and COM600S or
COM600F. All the load-shedding operational and control
information is exchanged over IEC 61850 GOOSE and MMS.
Other ABB IEC 61850 devices, such as Relion 670/650 series
intelligent electronic devices (IEDs) and AC800M, and HMI
systems like MicroSCADA, System 800xA, can also be
integrated into the solution cluster. However, PML630 can also
be made to interoperate with any non-ABB or third-party IEC
61850 devices, provided they are able to meet the functional
requirements for load-shedding.
Disturbance files in COMTRADE file format can also be
accessed using the IEC 61850 standard's MMS file transfer
services or any standard protocol like FTP. PML630 exchanges
analog and binary signal information with the mentioned
devices and IO units (horizontal communication) using the
GOOSE profile. It meets the GOOSE performance requirements
for tripping applications (Type 1A, performance class 1) like
load-shedding in distribution substations, as defined by the IEC
61850 standard. PML630 can also interoperate with other IEC
61850-compliant devices, tools and systems and
simultaneously report events to five different clients on the IEC
61850 station bus. It is connected to Ethernet-based
communication systems via the RJ-45 connector
(10/100BASE-TX) or the fibre-optic multimode LC connector
(100BASE-FX).
The GOOSE communication profile for load-shedding offers
several advantages.
• Minimal or no hardwiring between panels
4
– Substation LAN can be used as the transmission
medium of binary and analog process data between
devices.
– Less I/O hardware in devices
– Lesser maintenance costs (due to lesser wiring
diagrams, terminal blocks and connections)
– Better predictability in the system or functionality
verification
• Fast and reliable station bus for data transfer offered by
Ethernet LAN technology
• Fast performance enabled by GOOSE.
– No need for additional signal processing, for example,
intermediate interposing relays, filtering and flutter
suppressions in binary signal transfer.
– Much faster binary signal transfer between devices than
with conventional hardwiring
– High performance
• Supervision of signals being transferred over GOOSE for
data integrity (based on, for example, quality and
communication status)
1MRS757334 E
ABB