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Equipment MOT-101
FM stator_winding_insulation_aging
ISO 14224 mode Stator winding insulation aging Stator winding insulation aging
Source synthetic + standards-based engineering estimate (ISO 14224 / API / IEC 61511 框架归类)
定子绕组绝缘老化
MOT-101 · Electric Motor (Driver)
Related equipment → MOT-101
0.82Source conf.
—Evidence conf.
Stator winding insulation agingISO 14224 mode
1Failure Mechanism
Function:建立旋转磁场并传递电能
Failure cause:热应力 + 电应力 + 潮湿导致绝缘劣化
Damage mechanism：绝缘系统热老化（IEC 60034-18 热寿命模型），匝间介电强度下降
2Source Basis (where this FM comes from)
synthetic + standards-based engineering estimate (ISO 14224 / API / IEC 61511 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 / API / IEC 61511 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:API 541 — Form-Wound Squirrel Cage Induction Motors · 机理级工程估计，非实测；引用 governing standard 作为分类出处std:IEEE 841 — IEEE Std for Petroleum and Chemical Industry—Severe Duty TEFC Motors · 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
API 541IEEE 841ISO 14224:2016GB/T 6075ISO 13372API 580GB/T 7826-2012SAE JA1011_202411IEC 60034
No separate clause reference.
6Derived Analysis (seeded from this FM)
7/3/3FMEA Sev/Occ/Det
0.12RBI λ
0.7Monitor pdet
6 月Insp. int.
Current tasks:绝缘电阻/极化指数测试 | 在线局部放电监测
RCFA incident:定子绕组绝缘老化：热应力 + 电应力 + 潮湿导致绝缘劣化，后果类型 Operational/Safety，严重度 7
7RCM Maintenance Decision (strategy landing)
PMScheduled (Proactive) Maintenance
Recommended task绝缘/电气试验 + 继电保护定值校核 + 操动机构特性测试; 温度/红外热成像监测, 超温报警与根因排查
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; overheat
Governing standardsAPI 530GB/T 14285IEC 60034IEEE C57厂家规范
⚠ 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。