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How does an oil transformer work?
Cooling oil according to the principle of heat generated by the coil and magnetic core during operation will transfer to the oil. The temperature of the oil will spread out to the outside through the transformer's metal shell.
Oil-immersed transformers consist of the magnetic core, windings and bushings. The magnetic core provides a path for magnetic flow. Windings create a magnetic field and consist of a conductor coil, wrapped around the core and insulated with press board barriers and screens. The thickness of the winding insulation increases with voltage. Bushings connect transformer windings to a substation. A characteristic feature of an oil-immersed transformer is the oil conservator. It simplifies operation by monitoring the oil level in a tank and providing space for thermal expansion of the oil.
Moreover, the minimum net distance between the outer profile of the fuel oil-immersed transformer and the wall and door of the transformer room also has strict distance requirements. The various civil structures, fire barriers and storage tanks of oil-immersed power transformer substations are designed because of the flammability and liquidity of oil. In addition, "when the transformer room is located in the building, the door shall be a Class A fire door." In this way, the construction investment designed to prevent fire in each substation is naturally much larger.
| Standards | GB1094 GB/T6451-2023 GB20052-2020 IEC60076 | Insulated Level | L175 AC35/AC5 |
| Capacity Range | 30-20000kVA | Max Heat Rise | 65K |
| Voltage Class | 10kV,35kV | Insulated Grade | A |
| Tapping Range | ±2*2.5%/±5% | Max Heat Rise | 100K |
| Voltage Regulation | Non-Excitation | Operation Condition | Environmental Temperature ≤40ºC And Altitude ≤1000M |
| Connection | Dyn11/Yyn0 | Cooling Way | ONAN |
FAQ
Q: Are you a Manufacturer, factory, or Trading company?
A: Yes, We have been engaging in the research and development, production, and operation of transformers for over 10 years.
Q: Production Time?
A: 30 to 45 days depending on order requirements.
Q: What are your payment terms?
A: T/T, L/C, or negotiation.
Q: Do you have the products in stock?
A: Normally no. All our products are produced depending on your order quantity.
Q: How can I trust you?
A: Guangdong Forui Electric Co., Ltd. has 17 years of transformer production experience, a plant area of 10000 square meters, more than 50 enterprise patents, and 100 sets of professional equipment, we have obtained certificates ISO9001, ISO14001, OHSAS18001, and so on
Q: What should be provided to make a custom transformer?
A: Technical drawing and technical specification document are the best, or you can tell us some details of technical specification date as below "Quotation and Ordering Required Information".
A: Yes, every product is a 1-year quality warrantee under the customer's correct using the products.
