GE MiCOM AGILE P842- Mesh-corner Delayed Auto Reclose DAR


The MiCOM Agile P842 Mesh Corner Reclose unit (MCU) provides a flexible, distributed scheme for delayed auto-reclose (DAR) and auto-isolation of a mesh bus station. Its flexibility means it can be used with different bus-bar arrangements.

Key benefits:

  • 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-color LEDs


  • 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
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The MiCOM AGILE P842 uses high-speed peer-peer communication facilities over ethernet, and provides for the automatic reclosure of circuit breakers. It also ensures automatic isolation of a persistently faulted plant and suppresses fero-resonance following a system fault.

The equipment is provided on the basis of one MCU per mesh corner. Although each MCU is an autonomous unit, inter-unit communications guarantees co-ordinated control of a complete mesh system.

Flexibility for easy commissioning and fault-finding

The MiCOM Agile P842 ensures that only the faulted electrical plant is isolated for permanent faults. It provides flexibility for different busbar arrangements, carries out system checks, and suppresses fero-resonance.

The MiCOM Agile P842 is equipped with real time peer-peer communications and allows easy commissioning and ‘fault-finding’.

About MiCOM P40 Agile

Agile’s philosophy is one of continuous improvement in our products and solutions. Our emphasis on communication in MiCOM has become a focus which secures leadership in the digital substation. To mark this phase of evolution, the brand “P40 Agile” is applied to the range. P40 Agile is a mark of performance and quality, proudly available from Agile, and only from Agile.

Product Release Notes for Software verson 6.4.1

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