Application - ABB Relion 670 series Product Manual

ABB
Line distance protection REL670 ANSI
Pre-configured
Product version: 1.2

1. Application

REL670 is used for the protection, control and
monitoring of overhead lines and cables in solidly
grounded networks. The IED can be used up to the
high voltage levels. It is suitable for the protection of
heavily loaded lines and multi-terminal lines where
the requirement for tripping is one- and/or three-
pole. The IED is also suitable as back-up protection
of power transformers, reactors and so on.
The full scheme distance protection provides
protection of power lines with high sensitivity and
low requirement on remote end communication.
The five zones have fully independent measuring
and setting which gives high flexibility for all types of
lines.
The modern technical solution offers fast operating
time of typically 1.5 cycles.
The autoreclose for single-, two-, and/or three-pole
reclose includes priority features for multi-breaker
arrangements. It co-operates with the synchronism
check function with high-speed or delayed reclosing.
High set instantaneous phase and ground
overcurrent, four step directional or non-directional
delayed phase and ground overcurrent, thermal
overload and two step under and overvoltage
protection are examples of the available functions
allowing the user to fulfill any application
requirement.
The distance phase and ground fault protection can
communicate with remote end in any teleprotection
communication scheme. With the included remote
communication, following the IEEE C37.94
standard, 6 x 32 channels for intertrip and binary
signals are available per LDCM communication
module in the communication between the IEDs.
The IED can also be provided with full bay control
and interlocking functionality including co-operation
with the synchronism check function to allow
integration of the main or back-up control.
Out of Step function is available to separate power
system sections close to electrical centre at
occurring out of step.
The advanced logic capability, where the user logic
is prepared with a graphical tool, 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 with delay
mode, ensures simple and fast testing and
commissioning.
Disturbance recording and fault locator are available
to allow independent post-fault analysis after
primary disturbances.
Serial data communication is via optical
connections to ensure immunity against
disturbances.
The wide application flexibility makes this product
an excellent choice for both new installations and
the refurbishment of existing installations.
One package has been defined for following
applications:
• Multi-breaker (breaker-and a half or ring) with
single-pole tripping (B32A)
Optional functions are not configured but a
maximum configuration with all optional functions
are available as template in the graphical
configuration tool. Analog and tripping IO has been
pre-defined for basic use.
Add binary I/O as required for the application when
ordering. Other signals need to be applied as
required for each application.
For details on included basic functions refer to
section
"Basic IED functions"
The application on a high ohmic grounded system is
shown in figure 1.
Refer to the Application manual for pre-configured
analog and binary IO.
The applications are shown in figures
single resp. multi-breaker arrangement.
1MRK 506 317-BUS A
Issued: May 2012
Revision: A
1 and 2for
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