Table 6. Fault Diagnosis Based on the IEC Three-Ratio Method.
| fault type | C2H2/C2H4 | CH4/H2 | C2H4/C2H6 |
|---|---|---|---|
| LT (<150 °C) | <0.1 | 0.1–1 | 1–3 |
| LT (150–300 °C) | <0.1 | ≥1 | <1 |
| PD | <0.1 | <0.1 | <1 |
| AD | 0.1–3 | <1 | NS |
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