10kv split core current transformer from china factory

In China ,performance code of distribution transformer’s meaning is: above type S7, no-load loss reduce per 10%, code "7" add "1" on it.From type S7 to type S9, reduce more load loss,average is 25%. Later, because no breakthrough new material, new technology, reduce distribution transformer’s load loss is difficult, the performance level code normally use no-load loss reduce as a standard. Take a 400KVA S11 oil Immersed transformer as example, type S7’s no-load loss is 920W ,and type S11’s no-load loss is570W, decrease by 38%.

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