The transformer core is made of imported high-quality cold - rolled silicon steel sheet , which greatly reduces no-load loss and no-load current, and binds the core to ensure the firmness of the core and reduce noise.
The high and low voltage windings are wound with oxygen free copper , the low voltage windings are 500 kVA and below using double - layer cylinder three-sex rated capacity electric structure , 630kVA and above using double helix or quad ru helix structure , and the high voltage windings are polyphase can be laminated cylinder structure .
The transformer connection group adopts Dy n11 to reduce the influence of harmonics on the power grid and improve the quality of power supply. The transformer is fully sealed structure , extending the service life , no lifting center, no maintenance .
The measured noise value is lower than the standard. After the normal transportation of this series of transformers , without the need for lifting core inspection , you can install the relevant parts, acceptance project test, can be put into operation after passing.
The oil-immersed power transformer developed and produced by Jiangsu Unita Electric Equipment Co.,Ltd. has the advantages of high efficiency and energy saving, ultra-long life, environmental protection and safety. Mineral oil or synthetic ester is used as the insulation and cooling medium to greatly avoid risks such as fire. Silicon steel core and copper/aluminum winding are used to provide excellent cooling and insulation performance through oil circulation, which significantly saves electricity and has strong short-circuit resistance. Our oil-immersed power transformer supports flexible customization and adapts to all scene requirements. Oil-immersed power transformers are key components for voltage conversion and power distribution in industrial applications.
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