S13/S20/S22 Oil immersed distribution transformers

The S13/S20/S22 series fully sealed oil immersed transformers are suitable for use in power systems with an AC frequency of 50Hz and a rated working voltage of 20kV and below. They are used as distribution transformers in enterprises such as petroleum, metallurgy, chemical, textile, light industry, and places with high dust. Main Features iron core The iron core is made of high magnetic conductivity grain oriented cold-rolled silicon steel sheets. The iron core is a new type of iron core, with a fully inclined joint integrated iron core. The iron core column has a multi-stage stepped circular cross-section, and the iron yoke and iron core have equal cross-sections. winding The winding adopts corrugated oil channels, non dipping process, and tight strap binding. The windings are all concentric coils. The high-voltage winding has corresponding tap points for tap voltage requirements, which are led to the tap changer. The switch is installed on the box cover and the tap voltage can only…

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