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Equipment Failure Rates: Voltage Regulator
Equipment failure rates, MTBF, MTTR, and downtime statistics for electrical and mechanical plant equipment. Primary data from the USACE PREP reliability database (IEEE Std 3006.8-2018 Table 2), covering ~280 equipment classes. Supplemental data from IEEE motor and transformer surveys.
| equipment type | class code | description | failure rate per year (failures/year) | failures (count) | mdt hours (h) | mtbf hours (h) | mttm hours (h) | mttr hours (h) | standard | survey | unit years (unit-years) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Voltage Regulator | E40-100 | Voltage regulator, static | 0.022771 | 77 | 2.23 | 384,698 | 0.53 | 15.73 | IEEE Std 3006.8-2018 Table 2 | USACE PREP | 3,381.5 |
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