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Protection and Control of Modern Power Systems

Table 1 MTTF data of substation devices [36]

From: Reliability of IEC 61850 based substation communication network architecture considering quality of repairs and common cause failures

Intra-bay substation communication network devices

MTTF (years)

Protection IED

150

Control IED

150

Ethernet switch (ESW)

50

Time synchronisation (TS)

150

Merging unit (MU)

150

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