Wuhan S13 Oil immersed Transformer Oil immersed Transformer Source Manufacturer

Description :

　　Oil immersed transformers can operate according to the nameplate under specified cooling conditions, but the top oil temperature should not exceed 90 ℃. To prevent insulation aging of the transformer, the top oil temperature should generally not exceed 85 ℃ frequently, and the alarm setting should be set at 80 ℃.

　　Cooling method for oil immersed transformers:

　　(1) Oil immersed transformers usually adopt three cooling methods: oil immersed self cooling, oil immersed air-cooled, and forced oil circulation.

　　(2) Oil immersed self cooling relies on natural convection of oil to remove heat. Oil immersed air-cooled type is based on oil immersed self cooling type, with the addition of a fan to blow air to the oil tank and oil pipe to enhance heat dissipation. Forced oil circulation is the process of using an oil pump to extract hot oil from a transformer and cool it outside before sending it into the transformer.

　　Fire prevention measures for oil immersed transformers:

　　Special attention should be paid to the fire safety measures of oil immersed transformers.

　　1. The distance between oil immersed transformers with an oil content of over 2500kg and oil filled electrical equipment with an oil content between 600kg-2500kg shall not be less than 5m.

　　2. When the fire distance between adjacent oil immersed transformers does not meet the requirements, a fire partition wall or fire water curtain should be installed at the top of the fire partition wall. Only fireproof partitions or fireproof water curtains can be installed between single-phase oil immersed transformers.

　　3. When the distance between the workshop exterior wall and the outer edge of the oil immersed transformer is less than the specified value in the specification table, a firewall is used for the exterior wall. The distance between the transformer wall and the outer edge shall not be less than 0.8m.

　　4. When the oil immersed transformers, doors, windows, and holes on the outer wall of the factory building are not allowed to open within a total thickness range of 3m below the horizontal line, and 3m on both sides of each outer edge; The fire resistance limit of doors and fixed windows on outdoor firewalls shall not be less than 0.9 hours.

　　5. When the oil content of a single oil immersed transformer or other oil filled electrical equipment exceeds 1000Kg, oil storage pits and public oil collection tanks should be set up, and transformer pebbles should be set up as backup to prevent fires and oil leakage.

　　6. Oil immersed transformers should be equipped with fixed fire extinguishing systems such as sprinkler systems in accordance with current relevant regulations. Oil immersed transformers should be installed separately in the room, and the room door should open to the outside of the B-class fireproof door and pass through the outside or corridor, and should not be opened to other rooms.

　　Classification of oil immersed transformer models:

　　1. Non enclosed oil immersed transformers: mainly including S8, S9, S10 and other series products, widely used in industrial and mining enterprises, agriculture and civil buildings.

　　2. Enclosed oil immersed transformers: mainly including S9, S9-M, S10-M and other series products, commonly used in places with high oil pollution and chemical substances in the petroleum and chemical industries.

　　3. Sealed oil immersed transformers: mainly including BS9, S9-, S10-, S11-MR, SH, SH12-M and other series products, can be used for power distribution in various places such as industrial and mining enterprises, agriculture, civil buildings, etc.

　　Insulation function of oil immersed transformer:

　　(1) Insulate the conductive material from other parts.

　　(2) Can separate different charged parts.

　　(3) Reasonable insulation arrangement can improve the uniformity of electric field distribution.

　　(4) Enable electrical components to acquire a certain capacitance.

　　(5) Plays a role in mechanical support, fixation, and oil circulation heat dissipation.

　　Shandong Changneng Transformer Manufacturing Co., Ltd. adheres to the business philosophy of "honesty and trustworthiness, pioneering innovation, and excellence", and sincerely invites friends from all walks of life at home and abroad to work together and seek common development.

AfterSalesService :

• Oil immersed transformer