S13-M type double-winding non-excitation voltage regulating oil-immersed power transformer

S13/520/522 series fully sealed oil diffuser transformers are suitable for power systems with AC 50Hz, rated working voltage of 20kV and below, as power distribution in petroleum, metallurgy, chemical, textile, light industry and other enterprises and places with large dust transformer.

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Transformer

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summary

S13/520/522 series fully sealed oil diffuser transformers are suitable for power systems with AC 50Hz and rated working voltage of 20kV and below. transformer.

working conditions

Installation height: the altitude does not exceed 1000m;

●Ambient temperature: -40C -40°C.

Structure

Iron core

The iron core is made of high magnetic permeability grain-oriented cold-rolled silicon copper sheet. The iron core is a core-type iron core, a fully slant-jointed laminated iron core, the iron core column is a multi-step circular section, and the iron yoke and the iron core are of equal cross-section.

winding

The winding adopts corrugated oil channel, no paint dipping process, and is bound with compression tape; the windings are all concentric coils: the high-voltage winding has a tap corresponding to the tap voltage requirements, and leads to the tap changer. The switch is installed on the box cover and needs to be After the power is cut off, the voltage transfer of 10kV and 20kV can be realized, and the tap voltage can be changed.

Safety protection device

30~2000kVA transformer is equipped with pressure relief valve;

Gas relays with alarm and trip terminals can be installed according to user needs;

Oil temperature measuring device

The transformers are equipped with tube sockets for glass thermometers, which are located at the top of the oil tank and extend into the oil by 120 ± 10 mm; 1000-2000kVA transformers are equipped with outdoor signal thermometers;

Transformer tank

The transformer oil tank is composed of corrugated walls, and the surface is sprayed with dust and the paint film is firm. The corrugated heat sink not only has a cooling function, but also has a "breathing" function. The elasticity of the corrugated heat sink can compensate for the change in the volume of transformer oil caused by temperature rise and fall. Therefore, the fully sealed transformer has no oil conservator, which reduces the overall height of the transformer;

The transformer adopts the vacuum oil injection process during packaging, which completely removes the moisture in the transformer, and the transformer oil does not come into contact with the air. Effectively prevent the intrusion of oxygen and moisture into the transformer, resulting in the decline of transformer insulation performance and the possibility of transformer oil aging, so the oil sample test is carried out from time to time;

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