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Equipment VFD-101
FM rectifier_diode_failure
ISO 14224 mode Rectifier diode failure Rectifier diode failure
Source synthetic + standards-based engineering estimate (ISO 14224 / IEC 61800 / IEEE C57 框架归类)
输入整流桥二极管失效
VFD-101 · Variable Frequency Drive (VFD)
Related equipment → VFD-101
0.82Source conf.
—Evidence conf.
Rectifier diode failureISO 14224 mode
1Failure Mechanism
Function:交流整流为直流
Failure cause:输入浪涌/反向电压击穿或热疲劳
Damage mechanism：输入整流二极管承受浪涌电流与反向电压击穿，或长期热疲劳导致正向压降升高开路
2Source Basis (where this FM comes from)
synthetic + standards-based engineering estimate (ISO 14224 / IEC 61800 / IEEE C57 框架归类)
Source confidence 0.82: this FM is derived from the ontology KB and cross-validated by synthetic + standards-based engineering estimate (ISO 14224 / IEC 61800 / IEEE C57 框架归类).
3Evidence Chain (supporting basis)
This FM has no offline curated evidence text; it is derived from the ontology KB and cross-validated by the listed standard clauses and related accident investigations.
Governing standards (evidence)：std:IEC 60146 — Semiconductor converters — General requirements and line commutated converters · 机理级工程估计，非实测；引用 governing standard 作为分类出处std:IEC 60747 — Semiconductor devices — Discrete devices · 机理级工程估计，非实测；引用 governing standard 作为分类出处
4Related Real Accidents (traceable to accident cards)
This FM is recorded in 2 real accident investigation(s); tap the report no. to open the corresponding accident lesson card.
5Applicable Standards & Clauses
IEC 60146IEC 60747
No separate clause reference.
6Derived Analysis (seeded from this FM)
6/3/3FMEA Sev/Occ/Det
0.05RBI λ
0.7Monitor pdet
12 月Insp. int.
Current tasks:输入侧电流/电压监测 | 浪涌防护检查
RCFA incident:输入整流桥二极管失效：输入浪涌/反向电压击穿或热疲劳，后果类型 Operational，严重度 6
7RCM Maintenance Decision (strategy landing)
CBMOn-Condition Maintenance
Recommended task无损检测(UT/MT/PT) 监测裂纹萌生, 关键转动件定时拆检; 绝缘/电气试验 + 继电保护定值校核 + 操动机构特性测试
Suggested intervalHigh risk 1-3 mo / Medium 6-12 mo / Low risk at turnaround (by API 581 RBI risk ranking)
Decision basis机理类别=electrical; fatigue
Governing standardsAPI 579API 612ASME VIIIGB/T 14285IEC 60034IEEE C57
⚠ This decision is engineering-inferred by RCM logic from the damage mechanism / root cause / failure cause — it is not derived from measured site history. Confirm with the equipment owner and process before execution.
⚠ 本卡技术正文（功能 / 致因 / 损伤机理 / RCFA 叙事）保留中文原文——依可信 AI 红线，自由技术文本不自动机翻、不编造英文译文。UI、设备类型、FM 名、ISO 码、标准号均为英文。