Research Article
Reliability Assessment Based on GO Method of Metro Traction System
Table 1
Reliability parameters of the MTS.
| | Components | Failure rate (hā1) | Average maintenance time (h) | Failure probability |
| | Pantograph | | 24 | 0.0003 | | Surge arrester | | 6 | 0.0000252 | | Isolating switch | | 14 | 0.0000588 | | High-speed circuit breaker | | 12 | 0.0000504 | | Wave filter | | 12 | 0.00004976 | | Controller of converter | | 6 | 0.00014927 | | Charging resistor | | 6 | 0.00002488 | | Charging contactor | | 6 | 0.00007464 | | Separating contactor | | 6 | 0.00007464 | | IGBT | | 12 | 0.00029856 | | Overvoltage chopper | | 6 | 0.00002488 | | Voltage sensor | | 9 | 0.00007463 | | Current sensor | | 9 | 0.00007463 | | Supporting capacitance | | 9 | 0.00007463 | | Traction motor | | 24 | 0.0001008 |
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