- Other Auto Electrical Systems[1]
- Chargers[1]
- Circuit Breakers[2]
- Industrial Power Supply[2]
- Inverters & Converters[10]
- Switching Power Supply[7]
- Uninterrupted Power Supply (UPS)[4]
- Voltage Regulators/Stabilizers[10]
- Transformers[9]
- Other Electronic Components[2]
- Solar Chargers[1]
- Solar Energy Systems[1]
- Street Lights[1]
- Contact Person : Mr. wang kolya
- Company Name : Zhejiang Honle Electric Co., Ltd.
- Tel : 86-577-61762777
- Fax : 86-577-61755177
- Address : Zhejiang,Yueqing,No.9# xinguang industrial zone liushi town
- Country/Region : China
- Zip : 325604
SG Three-phase Dry-type Power Transformer
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Transformers component | Temperature rise limit K | Measuring method | Items | Allowable degree of deviation (%) | ||
Coil | B | 80 | No-load loss | +15 | ||
F | 100 | Load loss | +15 | |||
Iron core and surface of the structural components | The max. value shall not exceed the allowable temperature rise limit of the contact insulation material | thermometry or thermocouple method | Total loss | +10 | ||
Insulation level:The transformer withstands 2000V power frequency testing voltage without breakdown or flashover in 1 minuteAt frequency and voltage multiplying in 1 minute. The performance of transformer shall not exceed the allowable deviation value in the following table. | No-load current | +30 | ||||
Impedance voltage | ±10 | |||||
Transformer ratio | ±0.5 | |||||
DC resistance unbalanced ratio | Iine | 2 | ||||
Phase | 4 | |||||
Remarks: If the DC resistance unbalanced ratio of three-phase transformer exceeds the specified range in Form 2 due by the reason of material of coil and structure, the measured value shall be recorded in the delivery test record and the very reasons also be noted. | ||||||
SG Three-phase Dry-type Power Transformer
