MICOM P442 / P444 “Any start” output signal chatter

Issue
“Any start” output signal chatter when the power system (Transmission line) is in healthy state. This results in event log pollution (overwriting of key events) and incorrect fault record values for an fault isolation trip.


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Product Line
MiCOM P442, P444 Firmware: D6.KA

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Environment
Power system (Transmission line) see transient fault and returns to heathy state.

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Solution
Upgrade to Firmware D6.KB or the latest D6.KE

There will not be any challenge in configuration file management as major version is maintained same D6

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*Warning:  Installation, maintenance, up-gradation, down-gradation of MiCOM device should only be performed by qualified, competent personnel that have appropriate training and experience. Failure to follow the instructions / warnings in the Installation / Operation Guide can result in unwanted disruption to the power system, permanent damage to the device, severe injury or death.*

Publicerad för: Schneider Electric Sverige