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The wound distribution transformer core is a new generation of low-noise and low-loss transformer developed in recent years. Its core is seamless, and the no-load loss and no-load current are reduced. The no-load current is high to 80%, and the low 60% is wound on the continuous winding with iron wire, which is compact and concentric. Noise reduction 10 dB. Because of the continuous winding, the iron core makes full use of the directionality of manufacturing, and the no-load loss is reduced by 20% ~ 30%, which is a new generation of energy-saving and environmental-friendly high-tech products.

This kind of sealed distribution transformer adopts the structure of no hanging iron core, so that the inner and outer oil tanks are completely isolated, and there is no storage cabinet. The thermal change in the operation of the transformer oil tank compensates for the expansion through elastic corrugated sheets, and the transformer oil and insulation parts are separated from the outside air and water, so that the transformer oil and insulation parts slow down the aging. The rubber seal with high fuel resistance can run for 20 years without hanging core inspection, which reduces the operation and maintenance cost and is beneficial to inconvenience. Some maintenance

The new S9 oil-immersed three-phase transformer adopts a unified design standard, with advanced and reasonable structure and strong short-circuit ability of insulation resistance, and its performance has reached the level of similar products in the world. Compared with S7 products, the no-load loss is reduced by 65,438 00.25% on average, the no-load current is reduced by 37.7%, and the load loss is reduced by 22.4% on average.

The developed SC9 series epoxy resin cast dry-type power transformer and air-insulated SG dry-type transformer have strong short-circuit resistance, good performance and high lightning impulse resistance. Epoxy resin casting dry-type distribution transformer winding is sealed by epoxy resin casting, which has good performance, crack resistance, high temperature resistance, high mechanical strength and long service life. Flame retardant, moistureproof, explosion-proof and pollution-free.

The product is small in size and low in noise. Automatic monitoring of winding temperature in operation and protection alarm device. The rated capacity can exceed 40% in forced air cooling. It can be widely used in high-rise buildings, stations, docks, subways, airports, power transmission and distribution systems and other important places.

Combined distribution transformer (American box transformer) is a new type of transformer which integrates transformer body, switch, fuse, tap changer and related auxiliary equipment. All of them are insulated and sealed, and protected by double welding wires. Transformer core adopts special structure, low power consumption, low noise, no heat and lightning protection. The high-voltage line adopts elbow joint, which can operate the load current of the cable 200A and can be operated in an emergency. The load switch has the function of isolating switch. The combined transformer has compact structure, small volume, small floor space, less investment and convenient installation, and can be widely used in airports, high-rise buildings, commercial centers, residential areas and streets, and can also be further installed in load centers. Please indicate the combined transformer or terminal ring network when ordering.

SZ type on-load tap-changer of power transformer is reliable and reasonable to save the quality of on-load tap-changer of transformer during use, and it conforms to GB 1094- 1996 National Economic Index of Power Transformer and GB/T6451-KLOC-0/999 Electrical Technical Parameters of Three-phase Oil-Immersed Transformer. The iron core is made of high quality, advanced production technology, reasonable structural design of oil circuit and winding circuit, high mechanical strength, strong short-circuit resistance and elegant appearance.

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