Taiyuan S11 Oil immersed Transformer Oil immersed Transformer Large Quantity and High Price

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.

　　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.

　　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.

　　Reasons for the rapid aging of oil in oil immersed transformers:

　　1. Equipment conditions:

　　The design and manufacturing of oil immersed transformer equipment adopt small intervals, which are prone to hot spots during operation. This not only promotes the aging of solid insulation materials, but also accelerates the aging of oil immersed transformers. Generally speaking, the oil oxidation rate of oil immersed transformers increases by about twice for every 10 ℃ increase in temperature from 60-70 ℃. In addition, if the sealing of oil immersed transformer equipment is not sufficient and moisture enters, it will also accelerate the aging of oil in oil immersed transformers.

　　2. Pollution issue:

　　When injecting new oil immersed transformers into equipment, precise filtration, degassing, dehydration, and impurity removal must be carried out. If clean and dry oil immersed transformers are injected into the equipment, the medium loss factor of the oil may exceed the very low limit of 2% specified during operation.

　　3. Operating conditions:

　　It refers to the fact that under normal operating conditions, transformer oil has a certain degree of oxidation. If the equipment operates at overload or experiences local overheating, and the oil temperature increases, the aging rate of transformer oil will accelerate.

　　4. Maintenance during operation:

　　The maintenance of oil immersed transformer oil during operation is very important. Many oil immersed transformers are not fully sealed. If the desiccant in the respirator fails and cannot be replaced in time, moisture will be brought into the oil immersed transformer oil. If the anti adsorbent in the oil fails and is not replenished in time, it will promote the oxidation and deterioration of the oil immersed transformer oil.

　　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