2. Application
M13637-3 v14
The Intelligent Electronic Device (IED) is used for the
control, protection and monitoring of different types of
bays in power networks. The IED is especially suitable
for applications in control systems where the IEC 61850–
8–1 Ed 1 or Ed 2 station bus features of the IED can be
fully utilized. It is used for station-wide interlocking via
GOOSE messages and vertical client-server MMS
communication to a local station or remote SCADA
operator workplace. This supports the architecture with
distributed control IEDs in all bays with high demands
on reliability. Redundant communication is obtained
through the built-in PRP and HSR features which can be
used in star or ringbus architectures. The IED can be
used on all voltage levels. It is suitable for the control of
all apparatuses in any type of switchgear arrangement.
The control is performed from remote (SCADA/Station)
through the IEC 61850–8–1 Ed1 or Ed2 station
communication or from the built-in multi-display local
HMI. Cyber security measures are implemented to
secure safe autonomous operation of the protection
and control functions even if simultaneous cyber attacks
occur. For all common types of switchgear
arrangements, there are different pre-configurations for
control and interlocking. One control IED can be used for
single bay or multi-bay applications. The control
operation is based on the select-before-execute
principle to give highest possible security. There are
synchrocheck functions available to assist optimal
breaker closing at the right instance in synchronous as
well as asynchronous networks.
A number of protection functions are available for
flexibility in use for different station types and busbar
arrangements. To fulfil the user's application
requirements, the IED features, for example, up to six
instantaneous phase and earth overcurrent functions, 4–
step directional or non-directional delayed-phase and
earth overcurrent functions, thermal overload and
frequency functions, two instances of 2–step under- and
overvoltage functions, autorecloser functions and
several different measuring functions. This, together
with the multi-display local HMI that can show one or
more pages per feeder allows using the IED for
protection and control for up to six bays in a substation.
The auto-reclose for single-, two-, and/or three-phase
reclose includes priority circuits for multi-breaker
arrangements. It co-operates with the synchrocheck
function with high-speed or delayed reclosing. Several
breaker failure functions are available to provide a
breaker failure function independent from the
protection IEDs, also for a complete one- and a half
breaker diameter.
Disturbance recording and fault locator are available to
allow independent post-fault analysis after primary
disturbances in case of a failure in the protection
system.
Duplex communication channels for transfer of up to 192
intertrip and binary signals are available on each
remote-end data communication card (LDCM). Typical
applications are the communication between IEDs inside
the station or with IEDs in a remote station as remote
I/O.
The IED can be used in applications with the IEC/UCA
61850-9-2LE process bus with up to eight Merging Units
(MU). Each MU has eleven analogue channels, four
current and four voltages and three T units.
Conventional input transformer module and Merging
Unit channels can be mixed freely in your 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
ensures simple and fast testing and commissioning.
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.
SEMOD51278-4 v12
Four packages have been defined for following
applications:
• Single breaker (double or single bus) arrangement
(A30). See
Figure 2.1
• Double breaker arrangement (B30). See Figure 2.2
• 1 ½ breaker arrangement for a complete diameter
(C30). See
Figure 2.3
• Single breaker (double bus) arrangement with PMU
functionality (D30). See
Figure 2.4
1MRK 511 404-BEN N
4 Hitachi Power Grids
© Copyright 2017 Hitachi Power Grids. All rights reserved
