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Equipment TX-101
FM buchholz_relay_nuisance
ISO 14224 mode Buchholz relay nuisance Buchholz relay nuisance
Source synthetic + standards-based engineering estimate (ISO 14224 / IEC 61800 / IEEE C57 框架归类)
瓦斯继电器误动/渗漏
TX-101 · Power Transformer
Related equipment → TX-101
0.82Source conf.
—Evidence conf.
Buchholz relay nuisanceISO 14224 mode
1Failure Mechanism
Function:检测内部故障与油流
Failure cause:轻瓦斯气体积聚误动，或密封渗漏油
Damage mechanism：轻瓦斯气体积聚或油流扰动误动；密封渗漏导致油位下降
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 60076 — Power transformers · 机理级工程估计，非实测；引用 governing standard 作为分类出处std:IEEE C57.104 — IEEE Guide for the Interpretation of Gases Generated in Oil-Immersed Transformers · 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 60076IEEE C57.104
No separate clause reference.
6Derived Analysis (seeded from this FM)
5/3/4FMEA Sev/Occ/Det
0.04RBI λ
0.6Monitor pdet
12 月Insp. int.
Current tasks:瓦斯继电器排气/校验 | 密封检查
RCFA incident:瓦斯继电器误动/渗漏：轻瓦斯气体积聚误动，或密封渗漏油，后果类型 Operational，严重度 5
7RCM Maintenance Decision (strategy landing)
CBMOn-Condition 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; 泄漏监测 + 密封/填料定期更换, 螺栓热紧固
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; seal_leak
Governing standardsAPI 510API 682GB/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。