1. Application
REC670 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 with
distributed control IEDs in all bays with high demands on
reliability. The IED can be used up to the highest voltage
levels. It is suitable for the control of all apparatuses in any
type of switchgear arrangements.
The control is performed from remote (SCADA/Station)
through the communication bus or from local HMI. Different
control configurations can be used, and one control IED can
be used per bay or one IED can be common for several bays.
Interlocking modules are available for all common types of
switchgear arrangements. The control is based on the select
before execute principle to give highest possible security. A
synchronism control function is available to interlock breaker
closing. A synchronizing function where breaker closes at the
right instance in asynchronous networks is also provided.
A number of protection functions are available for flexibility in
use for different station types and busbar arrangements. 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.
High set instantaneous phase and earth overcurrent, 4 step
directional or non-directional delayed phase and earth
overcurrent, thermal overload and two step under- and
overvoltage functions are examples of the available functions
allowing user to fulfill any application requirement.
REC670 has been provided with six of overcurrent, earth
fault, autorecloser and measuring functions. This, together
with the multi-display local HMI allows use as multi feeder
protection and controller for distribution buses.
Disturbance recording and fault locator are available to allow
independent post-fault analysis after primary disturbances
with a single failure in the protection system.
6 x 32 dual directional channels for intertrip and binary signals
transfer is available on each included communication card in
the communication between selected IEDs inside the station
or in a near-by station.
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 ensures simple
and fast testing and commissioning.
Three packages have been defined for following applications:
• Single breaker (double or single bus) arrangement (A30)
• Double breaker arrangement (B30)
• 1 ½ breaker arrangement for a complete diameter (C30)
Optional functions are not configured but a maximum
configuration with all optional functions is available as
template in the graphical configuration tool.Interface to analog
and binary IO:s are configurable from the setting tool without
need of configuration changes. Analog and control circuits
have been pre-defined. Other signals need to be applied as
required for each application. The main differences between
the packages above are the interlocking modules and the
number of apparatuses to control.
Bay control REC670
1MRK511232-BEN E
Pre-configured
Product version: 1.2
Issued: February 2015
Revision: E
ABB
3
