Shenheng Electric Power Equipment Co., Ltd.

& Songti oil-immersed power transformer overview:
c=r> Songti&/ type fully sealed oil-immersed transformer is suitable for power systems with AC, rated working voltage, and below, as petroleum, metallurgy, chemical industry, textile industry , distribution transformers in light industry and other enterprises and places with large dust.
Song Dynasty
c=r> Song Dynasty oil-immersed power transformer usage conditions:
Song Dynasty
c=r> Song Dynasty, ambient air temperature: high temperature + ℃, low temperature ℃< br/> Song style
c=r> Song style, installation height: the altitude does not exceed
Song style
b Song style temperature environment
Song style
Song style①
Song style< c=>at
℃
, maintain long-term stability at the temperature of

②
℃
Song type can withstand short-term operation under the temperature of Song type
Song type
Song type③
Song type maintains stable performance in a wide range of temperature and humidity
Song type
④
< c=>at
℃
℃
will not melt, flow and support combustion

⑤
No toxic or corrosive gases will be released at
Song type ℃
Song type temperature
Song type
c=r> Song type
c=r > Structural features of Song Dynasty oil-immersed power transformer:
Song Dynasty
c=r> Song Dynasty: Iron core
Song Dynasty
c=r> Song Dynasty carefully selects high magnetic permeability grain-oriented cold Rolled silicon steel sheet. The iron core is a core-type iron core, a fully oblique joint stacked iron core, the iron core column is a multi-step circular cross-section, and the iron wheel and the iron core are of equal cross-section.
Song Dynasty
c=r> Song Dynasty: Winding
Song Dynasty
c=r> Song Dynasty < c= Song Dynasty> The winding adopts corrugated oil channel, non-immersed paint process, and the winding is bound with compression tape They are all concentric coils: the high-voltage winding has taps corresponding to the tap voltage requirements, which are led to the tap switch. The switch is installed on the box cover, and after the power supply needs to be cut off, it can achieve both voltage transfer and tap voltage conversion.
Song Dynasty
c=r> Song Dynasty: safety protection device
Song Dynasty
c=r> Song Dynasty transformer is equipped with a pressure relief valve and can be installed with alarm and trip terminals according to user needs. Relay

c=r> : Oil temperature measuring device

c=r> < c=> Transformers are equipped with glass thermometer tube holders. The seat is located on the top of the oil tank and extends into the oil+

c=r> The transformer is equipped with an outdoor signal thermometer

c=r> : Transformer oil tank< br/> Song Dynasty
c=r> Song Dynasty transformer oil tank is composed of corrugated walls, and the surface is sprayed with dust to ensure a solid paint film. 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 changes in the volume of the transformer oil caused by temperature rise and fall. Therefore, the fully sealed transformer does not have an oil conservator, which reduces the overall height of the transformer. The transformer uses a vacuum oil filling process during packaging, which completely removes moisture in the transformer, and the transformer oil does not come into contact with the air. Effectively prevent the possibility of oxygen and moisture intruding into the transformer, which may lead to a decrease in the insulation performance of the transformer and aging of the transformer oil. Therefore, oil sample tests are conducted from time to time

c=r>Performance characteristics of oil-immersed power transformer

c=r> Except for small-capacity copper wires, the low-voltage windings of oil-immersed transformers generally use copper foil wound cylindrical structures. The high-voltage windings adopt a multi-layer cylindrical structure. , so that the ampere-turn distribution of the winding is balanced, the magnetic leakage is small, the mechanical strength is high, and the short-circuit resistance is strong.

c=r> The Songti core and windings each adopt fastening measures. The fastening parts such as the height of the body and the low-voltage leads are equipped with self-locking lock nuts. It adopts a non-suspended structure and can withstand Transportation jolts.

c=r> Song Dynasty coils and iron cores are vacuum dried, and the transformer oil adopts vacuum oil filtration and oil filling processes to minimize the moisture inside the transformer.

c=r> Song Dynasty, the oil tank adopts corrugated sheet, which has a breathing function to compensate for the volume change of oil caused by temperature changes, so this product does not have an oil conservator, which obviously reduces the height of the transformer. .

c=r> Song Dynasty, because the corrugated sheet replaces the oil conservator, the transformer oil is isolated from the outside world, which effectively prevents the entry of oxygen and moisture, which will lead to a decrease in insulation performance.

c=r> Song Dynasty, based on the above five points of performance, it is ensured that the oil-immersed transformer does not need to change oil during normal operation, which greatly reduces the maintenance cost of the transformer and prolongs the use of the transformer. life.
Song style