GUID-4D002AA0-E35D-4D3F-A157-01F1A3044DDB V2 EN
Figure 9. ABB power system example using Relion relays, Substation Automation Unit COM600 and MicroSCADA Pro/System 800xA
6. Control
RED615 integrates functionality for the control of a circuit
breaker via the front panel HMI or by means of remote controls.
In addition to the circuit-breaker control the relay features two
control blocks which are intended for motor-operated control of
disconnectors or circuit breaker truck and for their position
indications. Further, the relay offers one control block which is
intended for motor-operated control of one earthing switch
control and its position indication.
Two physical binary inputs and two physical binary outputs are
needed in the relay for each controllable primary device taken
into use. The number of unused binary inputs and binary
outputs varies depending on the chosen standard
configuration. Further, some standard configurations also offer
optional hardware modules that increase the number of
available binary inputs and outputs.
If the amount of available binary inputs or outputs of the chosen
standard configuration is not sufficient, the standard
configuration can be modified to release some binary inputs or
outputs which have originally been configured for other
purposes, when applicable, or an external input or output
module such as RIO600 can be integrated to the relay. The
binary inputs and outputs of the external I/O module can be
used for the less time critical binary signals of the application.
The integration enables the releasing of some initially reserved
binary inputs and outputs of the relay in the standard
configuration.
The suitability of the relay's binary outputs which have been
selected for controlling of primary devices should be carefully
verified, for example, the make and carry as well as the breaking
capacity should be considered. In case the requirements for the
control-circuit of the primary device are not met, the use of
external auxiliary relays should be considered.
The optional large graphical LCD of the relay's HMI includes a
single-line diagram (SLD) with position indication for the
relevant primary devices. Interlocking schemes required by the
application are configured using the signal matrix or the
application configuration functionality of PCM600.
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