Several Cooling Methods of Oil-immersed Power Transformers
During the operation of an oil-immersed power transformer, the heat generated by the windings and core is first transferred to the oil, and then dissipated to the cooling medium through the oil.According to the rated capacity, the cooling methods of oil-immersed power transformers are classified as follows:
- Natural oil circulation and natural cooling (ONAN)
- Natural oil circulation and forced air cooling (ONAF)
- Forced oil circulation and water cooling (OFAW)
- Forced oil circulation and forced air cooling (OFAF)
Normal Service Conditions
- Altitude: Not exceeding 1000 meters
- Installation site: Indoor or outdoor
- Maximum ambient temperature: +40℃
- Maximum daily average temperature: +30℃
- Maximum annual average temperature: +20℃
- Minimum temperature: -25℃
Transformers suitable for operation under special service conditions can be supplied upon user's request.
Foshan Chanxingte Transformer Co., Ltd.
Address: No. 8, Zhongyou Avenue, Leping Town, Sanshui District, Foshan City
