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MiCOM Alstom P84x
P84X.jpg
 
MiCOM P841 is a multifunctional line terminal IED for control and back-up protection in transmission and sub-transmission feeder bays.
 
Basic description:
 
 Multifunctional line terminal IED for control and back-up protection in transmission and sub-transmission feeder bays 
 Management of single or dual breaker autoreclose logic schemes with synchrocheck
 
Key customer benefits:
 
 Single box solution for autoreclose, CB failure and check synchronizing 
 Readily interfaces with SCADA protocols and IEC 61850 
 Efficient monitoring, control, recording and digital communications - full feeder management 
 The ideal solution where the autoreclose and breaker fail schemes are preferred to be kept discrete from the main protection relays
 
Main characteristics:
 
 Single pole &three-pole breaker operation supported with independent supervision &condition monitoring statistics 
 IEC 61850 redundant Ethernet, supporting self healing ring, RSTP, dual homing or PRP 
 Graphical programmable scheme logic (PSL) eases protection scheme creation, and avoids the need for external logic controllers
 
Overall differentiation factors:
 
 Extremely versatile, e.g. managing leader-follower reclosing schemes in the event of dual breaker application 
 Transmission-class circuit breaker failure protection 
 Operator control and plant status indication facilities - 10 fully programmable function keys and tri-colour LEDs
 
Models Available:
 
 P841A Line Terminal Management IED
 P841B Used for line terminals supplied by two circuit breakers, such as mesh/ring bus, double-bus, and breaker and a half feeding