Interlocking; Functionality; Logical Node For Interlocking Scilo - ABB REC650 Technical Manual

Relion 650 series bay control

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1MRK 511 287-UEN A

Technical manual

IEC09000208 V2 EN

Configuration for the local/remote handling for a local HMI with one

bay and one screen page

The switching of the local/remote switch requires at least system operator level. The

password will be requested at an attempt to operate if authority levels have been

defined in the IED. Otherwise the default authority level, SuperUser, can handle the

control without LogOn. The users and passwords are defined in PCM600.

Interlocking

The interlocking functionality blocks the possibility to operate high-voltage

switching devices, for instance when a disconnector is under load, in order to prevent

material damage and/or accidental human injury.

Each control IED has interlocking functions for different switchyard arrangements,

each handling the interlocking of one bay. The interlocking functionality in each IED

is not dependent on any central function. For the station-wide interlocking, the IEDs

communicate via the station bus or by using hard wired binary inputs/outputs.

The interlocking conditions depend on the primary bus configuration and status of any

breaker or switch at any given time.

IEC 09000208_1_en. vsd

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