Tap any failure mode → flip to its on-site guidance (pure-CSS, no JS needed on mobile)
Power TransformerPower Transformer
⚠ ⚠ Top risk: 有载分接开关触头磨损/卡涩 · RPN 72 (High) — watch this one first at the equipment
Risk Board (all 15 · by RPN · top 6 highlighted urgent)
Shield: Safety = people/environment　Production = production only
Technical mechanism/mitigation body in Chinese (red line: no fabricated MT; EN UI labels translated)
15Failure Modes
10High/Critical
15Standards
2Real Accidents
Tap any failure mode to flip to its on-site guidance
Device-level standard/accident index (15 standards / 2 accidents)
Standards (15 de-duplicated)
  • IEC 60214
  • IEEE C57.131
  • IEC 60076
  • IEEE C57.104
  • IEC 60076-7
  • IEEE C57.91
  • IEC 60137
  • IEEE C57.19
  • IEC 60296
  • IEEE C57.106
  • IEC 60076-2
  • IEEE C57.12.00
  • IEC 60599
  • IEEE C57.12.90
  • IEC 60076-5
Accident Lessons (2 de-duplicated)
NUREG-LER-1997-032-INDIANPOINT3NRC1997 ↗
Indian Point 3 号机 480V 安全母线因 RHR 泵断路器拒动而不可用（1997）
NUREG-LER-1998-002-BROWNSFERRYNRC1998 ↗
Browns Ferry 3 号机 480V 停役盘备用馈线断路器拒合导致母线瞬时失电（1998）
FM Traceability Cards (15)
Generated by Reliability AI
有载分接开关触头磨损/卡涩RPN 72 · High
Failure Mechanism
切换电弧烧蚀触头，机械传动卡涩或过渡电阻断裂
How to Detect
Online monitoring · Detection rate 65% ；Re-inspect ≤every24months
Mitigation (What to Do)
  • OLTC 油色谱/过渡电阻监测
  • 动作次数管理
  • 吊芯检修
RCM Strategy
PMScheduled (Proactive) Maintenance
Interval: High risk 1-3 mo / Medium 6-12 mo / Low risk at turnaround (by API 581 RBI risk ranking)
Engineering-inferred (not measured history); confirm with equipment owner before execution
Standards (3)
  • IEC 60214
  • IEEE C57.131
  • IEC 60076
Lessons Learned (2)
NUREG-LER-1997-032-INDIANPOINT3NRC1997Operational
Indian Point 3 号机 480V 安全母线因 RHR 泵断路器拒动而不可用（1997）
Root cause: 断路器机构关键枢轴连接缺乏润滑导致卡涩拒动；同类 DS-416 断路器存在潜在共因退化
Official source ↗
NUREG-LER-1998-002-BROWNSFERRYNRC1998Operational
Browns Ferry 3 号机 480V 停役盘备用馈线断路器拒合导致母线瞬时失电（1998）
Root cause: 断路器位置开关联动触点被一根错位导线干扰无法正常闭合；根本因为导线布线不当及开关盖板拆装错误
Official source ↗
套管接线端/引线连接过热RPN 72 · High
Failure Mechanism
端子紧固力矩不足或氧化，接触电阻增大过热
How to Detect
Online monitoring · Detection rate 75% ；Re-inspect ≤every24months
Mitigation (What to Do)
  • 红外测温/接触电阻测试
  • 端子紧固力矩管理
RCM Strategy
CBMOn-Condition Maintenance
Interval: High risk 1-3 mo / Medium 6-12 mo / Low risk at turnaround (by API 581 RBI risk ranking)
Engineering-inferred (not measured history); confirm with equipment owner before execution
Standards (2)
  • IEEE C57.104
  • IEC 60076
Lessons Learned (2)
NUREG-LER-1997-032-INDIANPOINT3NRC1997Operational
Indian Point 3 号机 480V 安全母线因 RHR 泵断路器拒动而不可用（1997）
Root cause: 断路器机构关键枢轴连接缺乏润滑导致卡涩拒动；同类 DS-416 断路器存在潜在共因退化
Official source ↗
NUREG-LER-1998-002-BROWNSFERRYNRC1998Operational
Browns Ferry 3 号机 480V 停役盘备用馈线断路器拒合导致母线瞬时失电（1998）
Root cause: 断路器位置开关联动触点被一根错位导线干扰无法正常闭合；根本因为导线布线不当及开关盖板拆装错误
Official source ↗
绕组绝缘热老化RPN 63 · High
Failure Mechanism
热点温度超 IEC 60076-7 老化模型阈值，纤维素绝缘聚合度下降
How to Detect
Online monitoring · Detection rate 70% ；Interval by RBI
Mitigation (What to Do)
  • 热点温度/顶层油温监测
  • 负载管理
  • 糠醛/DGA 趋势
RCM Strategy
PMScheduled (Proactive) Maintenance
Interval: High risk 1-3 mo / Medium 6-12 mo / Low risk at turnaround (by API 581 RBI risk ranking)
Engineering-inferred (not measured history); confirm with equipment owner before execution
Standards (3)
  • IEC 60076
  • IEC 60076-7
  • IEEE C57.91
Lessons Learned (2)
NUREG-LER-1997-032-INDIANPOINT3NRC1997Operational
Indian Point 3 号机 480V 安全母线因 RHR 泵断路器拒动而不可用（1997）
Root cause: 断路器机构关键枢轴连接缺乏润滑导致卡涩拒动；同类 DS-416 断路器存在潜在共因退化
Official source ↗
NUREG-LER-1998-002-BROWNSFERRYNRC1998Operational
Browns Ferry 3 号机 480V 停役盘备用馈线断路器拒合导致母线瞬时失电（1998）
Root cause: 断路器位置开关联动触点被一根错位导线干扰无法正常闭合；根本因为导线布线不当及开关盖板拆装错误
Official source ↗
套管闪络/渗漏RPN 63 · High
Failure Mechanism
套管外绝缘污秽受潮沿面闪络；内部密封失效渗漏
How to Detect
Online monitoring · Detection rate 70% ；Interval by RBI
Mitigation (What to Do)
  • 套管红外/紫外电晕检测
  • 油位与密封检查
  • 污秽清洗
RCM Strategy
CBMOn-Condition Maintenance
Interval: High risk 1-3 mo / Medium 6-12 mo / Low risk at turnaround (by API 581 RBI risk ranking)
Engineering-inferred (not measured history); confirm with equipment owner before execution
Standards (3)
  • IEC 60137
  • IEEE C57.19
  • IEC 60076
Lessons Learned (2)
NUREG-LER-1997-032-INDIANPOINT3NRC1997Operational
Indian Point 3 号机 480V 安全母线因 RHR 泵断路器拒动而不可用（1997）
Root cause: 断路器机构关键枢轴连接缺乏润滑导致卡涩拒动；同类 DS-416 断路器存在潜在共因退化
Official source ↗
NUREG-LER-1998-002-BROWNSFERRYNRC1998Operational
Browns Ferry 3 号机 480V 停役盘备用馈线断路器拒合导致母线瞬时失电（1998）
Root cause: 断路器位置开关联动触点被一根错位导线干扰无法正常闭合；根本因为导线布线不当及开关盖板拆装错误
Official source ↗
绝缘油劣化/受潮RPN 60 · Medium
Failure Mechanism
油氧化酸值上升、吸潮介损 tanδ 上升，击穿强度下降
How to Detect
Online monitoring · Detection rate 60% ；Interval by RBI
Mitigation (What to Do)
  • 油中水分/介损/击穿电压测试
  • 油处理/滤油
RCM Strategy
PMScheduled (Proactive) Maintenance
Interval: High risk 1-3 mo / Medium 6-12 mo / Low risk at turnaround (by API 581 RBI risk ranking)
Engineering-inferred (not measured history); confirm with equipment owner before execution
Standards (3)
  • IEC 60296
  • IEEE C57.106
  • IEC 60076
Lessons Learned (2)
NUREG-LER-1997-032-INDIANPOINT3NRC1997Operational
Indian Point 3 号机 480V 安全母线因 RHR 泵断路器拒动而不可用（1997）
Root cause: 断路器机构关键枢轴连接缺乏润滑导致卡涩拒动；同类 DS-416 断路器存在潜在共因退化
Official source ↗
NUREG-LER-1998-002-BROWNSFERRYNRC1998Operational
Browns Ferry 3 号机 480V 停役盘备用馈线断路器拒合导致母线瞬时失电（1998）
Root cause: 断路器位置开关联动触点被一根错位导线干扰无法正常闭合；根本因为导线布线不当及开关盖板拆装错误
Official source ↗
温度指示/保护误动拒动（WTI/OTI）RPN 60 · Medium
Failure Mechanism
绕组温度计 WTI/油温 OTI 传感器漂移或继电器故障
How to Detect
Online monitoring · Detection rate 60% ；Interval by RBI
Mitigation (What to Do)
  • 温度指示比对/校准
  • 保护定值测试
RCM Strategy
PMScheduled (Proactive) Maintenance
Interval: High risk 1-3 mo / Medium 6-12 mo / Low risk at turnaround (by API 581 RBI risk ranking)
Engineering-inferred (not measured history); confirm with equipment owner before execution
Standards (2)
  • IEC 60076-2
  • IEEE C57.12.00
Lessons Learned (2)
NUREG-LER-1997-032-INDIANPOINT3NRC1997Operational
Indian Point 3 号机 480V 安全母线因 RHR 泵断路器拒动而不可用（1997）
Root cause: 断路器机构关键枢轴连接缺乏润滑导致卡涩拒动；同类 DS-416 断路器存在潜在共因退化
Official source ↗
NUREG-LER-1998-002-BROWNSFERRYNRC1998Operational
Browns Ferry 3 号机 480V 停役盘备用馈线断路器拒合导致母线瞬时失电（1998）
Root cause: 断路器位置开关联动触点被一根错位导线干扰无法正常闭合；根本因为导线布线不当及开关盖板拆装错误
Official source ↗
瓦斯继电器误动/渗漏RPN 60 · Medium
Failure Mechanism
轻瓦斯气体积聚误动，或密封渗漏油
How to Detect
Online monitoring · Detection rate 60% ；Interval by RBI
Mitigation (What to Do)
  • 瓦斯继电器排气/校验
  • 密封检查
RCM Strategy
CBMOn-Condition Maintenance
Interval: High risk 1-3 mo / Medium 6-12 mo / Low risk at turnaround (by API 581 RBI risk ranking)
Engineering-inferred (not measured history); confirm with equipment owner before execution
Standards (2)
  • IEC 60076
  • IEEE C57.104
Lessons Learned (2)
NUREG-LER-1997-032-INDIANPOINT3NRC1997Operational
Indian Point 3 号机 480V 安全母线因 RHR 泵断路器拒动而不可用（1997）
Root cause: 断路器机构关键枢轴连接缺乏润滑导致卡涩拒动；同类 DS-416 断路器存在潜在共因退化
Official source ↗
NUREG-LER-1998-002-BROWNSFERRYNRC1998Operational
Browns Ferry 3 号机 480V 停役盘备用馈线断路器拒合导致母线瞬时失电（1998）
Root cause: 断路器位置开关联动触点被一根错位导线干扰无法正常闭合；根本因为导线布线不当及开关盖板拆装错误
Official source ↗
冷却器/油泵/风扇失效RPN 54 · High
Failure Mechanism
冷却器堵塞/油泵故障/风扇停转，散热不足温升超标
How to Detect
Online monitoring · Detection rate 80% ；Interval by RBI
Mitigation (What to Do)
  • 冷却器流量/温度监测
  • 油泵振动
  • 风机巡检
RCM Strategy
CBMOn-Condition Maintenance
Interval: High risk 1-3 mo / Medium 6-12 mo / Low risk at turnaround (by API 581 RBI risk ranking)
Engineering-inferred (not measured history); confirm with equipment owner before execution
Standards (2)
  • IEC 60076
  • IEEE C57.12.00
Lessons Learned (2)
NUREG-LER-1997-032-INDIANPOINT3NRC1997Operational
Indian Point 3 号机 480V 安全母线因 RHR 泵断路器拒动而不可用（1997）
Root cause: 断路器机构关键枢轴连接缺乏润滑导致卡涩拒动；同类 DS-416 断路器存在潜在共因退化
Official source ↗
NUREG-LER-1998-002-BROWNSFERRYNRC1998Operational
Browns Ferry 3 号机 480V 停役盘备用馈线断路器拒合导致母线瞬时失电（1998）
Root cause: 断路器位置开关联动触点被一根错位导线干扰无法正常闭合；根本因为导线布线不当及开关盖板拆装错误
Official source ↗
内部故障产气（匝间/饼间短路，DGA 异常）RPN 48 · Critical
Failure Mechanism
局部过热或放电使油/纸裂解产气（H2/CH4/C2H2）
How to Detect
Online monitoring · Detection rate 85% ；Interval by RBI
Mitigation (What to Do)
  • 在线 DGA 监测
  • 三比值法诊断
  • 油色谱定期化验
RCM Strategy
PMScheduled (Proactive) Maintenance
Interval: High risk 1-3 mo / Medium 6-12 mo / Low risk at turnaround (by API 581 RBI risk ranking)
Engineering-inferred (not measured history); confirm with equipment owner before execution
Standards (3)
  • IEEE C57.104
  • IEC 60599
  • IEC 60076
Lessons Learned (2)
NUREG-LER-1997-032-INDIANPOINT3NRC1997Operational
Indian Point 3 号机 480V 安全母线因 RHR 泵断路器拒动而不可用（1997）
Root cause: 断路器机构关键枢轴连接缺乏润滑导致卡涩拒动；同类 DS-416 断路器存在潜在共因退化
Official source ↗
NUREG-LER-1998-002-BROWNSFERRYNRC1998Operational
Browns Ferry 3 号机 480V 停役盘备用馈线断路器拒合导致母线瞬时失电（1998）
Root cause: 断路器位置开关联动触点被一根错位导线干扰无法正常闭合；根本因为导线布线不当及开关盖板拆装错误
Official source ↗
异常噪声/振动（铁芯松动）RPN 48 · Medium
Failure Mechanism
铁芯夹紧件松动或叠片松动，电磁力引发异常振动
How to Detect
Online monitoring · Detection rate 70% ；Interval by RBI
Mitigation (What to Do)
  • 振动/噪声频谱监测
  • 夹紧件紧固检查
RCM Strategy
CBMOn-Condition Maintenance
Interval: High risk 1-3 mo / Medium 6-12 mo / Low risk at turnaround (by API 581 RBI risk ranking)
Engineering-inferred (not measured history); confirm with equipment owner before execution
Standards (2)
  • IEC 60076
  • IEEE C57.12.90
Lessons Learned (2)
NUREG-LER-1997-032-INDIANPOINT3NRC1997Operational
Indian Point 3 号机 480V 安全母线因 RHR 泵断路器拒动而不可用（1997）
Root cause: 断路器机构关键枢轴连接缺乏润滑导致卡涩拒动；同类 DS-416 断路器存在潜在共因退化
Official source ↗
NUREG-LER-1998-002-BROWNSFERRYNRC1998Operational
Browns Ferry 3 号机 480V 停役盘备用馈线断路器拒合导致母线瞬时失电（1998）
Root cause: 断路器位置开关联动触点被一根错位导线干扰无法正常闭合；根本因为导线布线不当及开关盖板拆装错误
Official source ↗
储油柜/呼吸器堵塞RPN 40 · Medium
Failure Mechanism
呼吸器硅胶饱和或管路堵塞，油柜不能正常呼吸，压力异常
How to Detect
Inspection/offline · Detection rate 60% ；Interval by RBI
Mitigation (What to Do)
  • 呼吸器硅胶更换
  • 油柜压力/油位检查
RCM Strategy
CBMOn-Condition Maintenance
Interval: High risk 1-3 mo / Medium 6-12 mo / Low risk at turnaround (by API 581 RBI risk ranking)
Engineering-inferred (not measured history); confirm with equipment owner before execution
Standards (2)
  • IEC 60076
  • IEEE C57.12.00
Lessons Learned (2)
NUREG-LER-1997-032-INDIANPOINT3NRC1997Operational
Indian Point 3 号机 480V 安全母线因 RHR 泵断路器拒动而不可用（1997）
Root cause: 断路器机构关键枢轴连接缺乏润滑导致卡涩拒动；同类 DS-416 断路器存在潜在共因退化
Official source ↗
NUREG-LER-1998-002-BROWNSFERRYNRC1998Operational
Browns Ferry 3 号机 480V 停役盘备用馈线断路器拒合导致母线瞬时失电（1998）
Root cause: 断路器位置开关联动触点被一根错位导线干扰无法正常闭合；根本因为导线布线不当及开关盖板拆装错误
Official source ↗
铁芯多点接地/过热RPN 36 · High
Failure Mechanism
铁芯叠片间绝缘损坏形成环流多点接地，局部过热
How to Detect
Online monitoring · Detection rate 70% ；Interval by RBI
Mitigation (What to Do)
  • 铁芯接地电流监测
  • 油色谱监控
RCM Strategy
PMScheduled (Proactive) Maintenance
Interval: High risk 1-3 mo / Medium 6-12 mo / Low risk at turnaround (by API 581 RBI risk ranking)
Engineering-inferred (not measured history); confirm with equipment owner before execution
Standards (2)
  • IEEE C57.104
  • IEC 60076
Lessons Learned (2)
NUREG-LER-1997-032-INDIANPOINT3NRC1997Operational
Indian Point 3 号机 480V 安全母线因 RHR 泵断路器拒动而不可用（1997）
Root cause: 断路器机构关键枢轴连接缺乏润滑导致卡涩拒动；同类 DS-416 断路器存在潜在共因退化
Official source ↗
NUREG-LER-1998-002-BROWNSFERRYNRC1998Operational
Browns Ferry 3 号机 480V 停役盘备用馈线断路器拒合导致母线瞬时失电（1998）
Root cause: 断路器位置开关联动触点被一根错位导线干扰无法正常闭合；根本因为导线布线不当及开关盖板拆装错误
Official source ↗
绕组机械位移/变形（短路电动力）RPN 32 · Critical
Failure Mechanism
短路电动力使绕组轴向/辐向位移，匝间短路风险
How to Detect
Online monitoring · Detection rate 60% ；Interval by RBI
Mitigation (What to Do)
  • 短路承受能力评估
  • 绕组频响 FRA 测试
  • 阻抗监测
RCM Strategy
CBMOn-Condition Maintenance
Interval: High risk 1-3 mo / Medium 6-12 mo / Low risk at turnaround (by API 581 RBI risk ranking)
Engineering-inferred (not measured history); confirm with equipment owner before execution
Standards (2)
  • IEC 60076-5
  • IEEE C57.12.90
Lessons Learned (2)
NUREG-LER-1997-032-INDIANPOINT3NRC1997Operational
Indian Point 3 号机 480V 安全母线因 RHR 泵断路器拒动而不可用（1997）
Root cause: 断路器机构关键枢轴连接缺乏润滑导致卡涩拒动；同类 DS-416 断路器存在潜在共因退化
Official source ↗
NUREG-LER-1998-002-BROWNSFERRYNRC1998Operational
Browns Ferry 3 号机 480V 停役盘备用馈线断路器拒合导致母线瞬时失电（1998）
Root cause: 断路器位置开关联动触点被一根错位导线干扰无法正常闭合；根本因为导线布线不当及开关盖板拆装错误
Official source ↗
分接开关切换油室燃弧/爆裂RPN 21 · High
Failure Mechanism
切换开关油室燃弧能量超限或防爆膜失效
How to Detect
Online monitoring · Detection rate 60% ；Interval by RBI
Mitigation (What to Do)
  • 切换油室压力/产气监测
  • OLTC 维护
RCM Strategy
CBMOn-Condition Maintenance
Interval: High risk 1-3 mo / Medium 6-12 mo / Low risk at turnaround (by API 581 RBI risk ranking)
Engineering-inferred (not measured history); confirm with equipment owner before execution
Standards (2)
  • IEC 60214
  • IEC 60076
Lessons Learned (2)
NUREG-LER-1997-032-INDIANPOINT3NRC1997Operational
Indian Point 3 号机 480V 安全母线因 RHR 泵断路器拒动而不可用（1997）
Root cause: 断路器机构关键枢轴连接缺乏润滑导致卡涩拒动；同类 DS-416 断路器存在潜在共因退化
Official source ↗
NUREG-LER-1998-002-BROWNSFERRYNRC1998Operational
Browns Ferry 3 号机 480V 停役盘备用馈线断路器拒合导致母线瞬时失电（1998）
Root cause: 断路器位置开关联动触点被一根错位导线干扰无法正常闭合；根本因为导线布线不当及开关盖板拆装错误
Official source ↗
突发短路耐受失败RPN 16 · Critical
Failure Mechanism
系统短路电动力超过设计耐受，结构失效
How to Detect
Online monitoring · Detection rate 50% ；Interval by RBI
Mitigation (What to Do)
  • 系统短路电流核算
  • 耐受能力评估
RCM Strategy
CBMOn-Condition Maintenance
Interval: High risk 1-3 mo / Medium 6-12 mo / Low risk at turnaround (by API 581 RBI risk ranking)
Engineering-inferred (not measured history); confirm with equipment owner before execution
Standards (2)
  • IEC 60076-5
  • IEEE C57.12.90
Lessons Learned (2)
NUREG-LER-1997-032-INDIANPOINT3NRC1997Operational
Indian Point 3 号机 480V 安全母线因 RHR 泵断路器拒动而不可用（1997）
Root cause: 断路器机构关键枢轴连接缺乏润滑导致卡涩拒动；同类 DS-416 断路器存在潜在共因退化
Official source ↗
NUREG-LER-1998-002-BROWNSFERRYNRC1998Operational
Browns Ferry 3 号机 480V 停役盘备用馈线断路器拒合导致母线瞬时失电（1998）
Root cause: 断路器位置开关联动触点被一根错位导线干扰无法正常闭合；根本因为导线布线不当及开关盖板拆装错误
Official source ↗