Application; General Ied Application - Hitachi Relion 670 Series Applications Manual

1MRK506375-UEN Rev. N
Section 2
2.1

General IED application

RER670 is used for the protection, control and monitoring of transmission lines, catenary lines or
transformers in two- and single-phase 16.7Hz, 50Hz and 60Hz railway applications. It supports
isolated, compensated and solidly earthed two-phase networks.
The line protection covers catenary/two-phase transmission network distance protection functions
with quadrilateral or circular starting characteristic. The six zones have fully independent measuring
and setting which gives high flexibility for all types of lines. Load encroachment and adaptive reach
compensation are included.
Communication to the remote ends can be used for even more selective protection. Backup functions
like directional earth fault or overcurrent as well as breaker failure protection are equally available as
autoreclosure and synchrocheck functions.
A line fault locator for up to 10 line segments supports efficient remedial actions after faults on the
transmission line.
The transformer protection covers transformer differential protection for two-phase to two-phase as
well as two-phase to one-phase transformers. Besides the transformer differential protection, a wide
range of backup functions are available.
A very fast transformer tank protection helps to avoid damages in case of short circuits to the
transformer tank.
The transformer energizing functions allow smooth energizing of transformers to minimize stress on
equipment and power system which operate at 16.7Hz.
The control functionality can be combined backup, line or transformer protection to use RER670 as
protection, control or combined protection and control IED.
The autorecloser co-operates with the synchrocheck function with high-speed or delayed reclosing.
Logic is prepared with a graphical tool. The advanced logic capability allows, for example, to combine
protection functions with logic gates or to create custom solutions.
Disturbance recording is available to allow post-fault analysis after primary disturbances.
IED supports COMTRADE1999 and COMTRADE2013 formats which can be selected in Parameter
Setting Tool (PST) of PCM600 or via LHMI.
RER670 provides IEC 60870-5-103 as well as IEC 61850 communication to a substation automation
system or, in case of IEC 61850, also for horizontal communication between IEDs. Redundant
communication is obtained through the built-in PRP and HSR features which can be used in star or
ringbus architectures. Further, also communication between IEDs in different substations is
supported using the IEEE C37.94 standard. Up to 192 channels for intertrip and binary signals are
available per LDCM communication module in the communication between the IEDs.
The IED can be used in applications with the IEC/UCA 61850-9-2LE process bus with up to twelve
Merging Units (MU). Each MU has eight analogue channels, four current and four voltages.
Conventional input transformer module and Merging Unit channels can be mixed freely in your

application.

RER670 can be ordered with the following functional packages:
Railway application RER670
Application manual
Application
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Section 2
Application
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