S11-S15 series oil-immersed transformer
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A fully sealed transformer is a transformer that is completely isolated from the outside atmosphere inside the tank. The change of the transformer volume is compensated by the expansion elasticity of the corrugated tank wall, and the external moisture and oxygen cannot enter the tank, thus slowing down the aging speed of the insulating material. The product does not need to be checked before operation, and maintenance and maintenance are exempted after it is put into operation, thus greatly improving the reliability of the transformer operation. Products using PCCAD software design, performance in line with IEC60067, GB1094 standards, and through the ISO9001 quality system certification.

The coil is wound with high-strength enameled wire (or paper-wrapped wire), cylindrical (or pie) structure, uniform distribution of ampere turns, reasonable insulation structure, and high short-circuit resistance. The fasteners used in the box are all non-return nuts, which can effectively prevent light aging, electrical aging and thermal aging. Equipped with "telemetry" signal thermometer and pressure relief valve, enhance the reliability of transformer operation.

• No oil cabinet, moisture absorber and other oil protection devices, to ensure that the transformer oil does not contact with the air, to ensure that the transformer oil does not need any treatment for 20 years of continuous use.

• The seal is made of rubber with excellent performance. Vacuum oiling process is adopted.

• Widely used in the city network and petrochemical, metallurgy, textile and humidity, maintenance of the same enterprises, mines, etc.

SBH15-M-30 ~ 2500/10 Series Oil-Immersed Amorphous Alloy Distribution Transformer
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Oil-immersed amorphous transformers can replace silicon steel core transformers and are widely used in outdoor power distribution systems. A large number of network operation of this product can achieve good energy saving effect, and can reduce the pollution of the atmosphere.

Since the transformer adopts a fully sealed structure, the insulating oil and insulating medium are not polluted by the atmosphere, so it can operate in a humid environment. It is an ideal distribution equipment in the vast urban and rural distribution network, especially suitable for insufficient power and large load fluctuations. And it is difficult to carry out daily maintenance areas.

• Transformer amorphous core adopts three-phase three-column structure, combined with the second generation of amorphous transformer invention patent technology, product operation noise is low, high reliability.

• High-voltage windings are all multi-layer cylindrical structure, which improves the impact distribution of windings.

• Capacity in the range of 200 ~ 6300KVA low-voltage winding using cylindrical or spiral structure, high mechanical strength, ampere-turn distribution balance, the product of short-circuit resistance.

A positioning structure is added to the body to prevent displacement during transportation. At the same time, all fasteners are equipped with fastening nuts to ensure that the fasteners are not loose during long-term operation and meet the requirement of not hanging the core. The transformer adopts vacuum oil filling.

• The surface of the product is degreased, de-rusted, phosphated and then sprayed with primer and topcoat, which can meet the special use requirements of humid and dirty areas. The product has beautiful appearance, small size and small installation area. It is an ideal maintenance-free high-quality product.

SW13,SW14-M-30 ~ 2500/10 Green Environmental Protection Natural Ester
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At present, natural ester vegetable oil has been recognized by the industry as an environmentally friendly and "non-flammable" insulating oil (released ASTMD6871-03; IEEE C57.147 released; ABNT NBR 15422 released; IEC standard release); Accredited by the National Electricity Code (NEC); Accredited by the U.S. Factory Mutual Insurance Center (FM Global) and Underwriters Laboratory (UL); Accredited by the U.S. Federal Environmental Protection Agency (EPA).

• Even if additional containers are still needed, if spilled, we can dispose of them by normal means and do not need to treat them like toxic waste.

• Natural ester vegetable oils can avoid penalties under government rules, exempt from clean-up procedures.

The ignition point of vegetable oil exceeds 350 ℃, which is much higher than the minimum ignition point (300C) specified by the International Electrotechnical Commission (IEC), the Chinese National Standard (GB) and the American Electrical Code (NEC), which greatly improves the safety and reliability of transformers and power grid systems.

• According to ASTM D1354 test, vegetable oil ignition time, flameout time, smoke generation rate and other parameters are better than mineral oil.

• The American Association of Insurance Laboratories (UL) considers vegetable oils to have a fire risk of 4 to 5, well below the 10 to 20 levels of paraffinic mineral oils. In addition, the U.S. National Electrical Code NEC450-23 has incorporated high-ignition insulating oil transformers, which can be used indoors with high safety and fire protection requirements.

• Natural ester vegetable oil can effectively avoid economic losses caused by transformer explosion and fire, such as equipment loss, maintenance, replacement, etc., and litigation caused by power interruption.

• With the help of natural ester vegetable oils, the use of fire extinguishing equipment (sprinklers) and firewalls can be reduced if space is limited. Natural ester vegetable oil transformers can be used indoors or in small spaces.

• Natural ester vegetable oils, in contrast to mineral oils, have extremely high water saturation at various temperatures. Under normal operating conditions, natural ester oils have 5 to 8 times the water saturation of mineral oils. Therefore, natural ester vegetable oils have excellent hydrophilicity compared to mineral oils.

• In the natural ester vegetable oil/insulation system, the moisture in the paper is less than the moisture in the paper in the mineral oil/paper insulation system. In units using hot oil drying, natural ester vegetable oil immersion in the unit allows to reduce the drying time.

• Natural ester vegetable oil-impregnated paper has a lower aging rate compared to mineral oil-impregnated paper systems, thereby extending the life of the insulation system, which in turn increases the life of the transformer.

• Natural ester vegetable oil impregnated paper can improve the peak load or overload capacity of the transformer, working at 10-15 ℃ higher than the hot spot temperature, and has the same life expectancy as mineral oil impregnated paper.

S13,S14-M ZT-100(30)~ 630(200)/10 intelligent on-load automatic capacity and pressure regulating transformer
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The S13 three-phase oil-immersed on-load, capacity and voltage regulation distribution transformer is a new type of energy-saving distribution transformer, and its energy efficiency level can reach the secondary energy efficiency specified in the national standard. And it can change the capacity of the transformer through the shift of the on-load capacity regulating switch according to the seasonal or periodic load changes, effectively reducing the loss value of the transformer, and has obvious power saving effect.

For a long time, China's rural power grid has the characteristics of load dispersion, strong seasonality and low average load rate. If the general distribution transformer is selected, the capacity must be selected according to the maximum load. When the load rate is low, the situation of "big horse-drawn car" will occur, and the internal consumption of the transformer itself is large.

Therefore, the transformer selected in the construction and transformation of the rural power grid should be in line with the load characteristics of the rural power grid, and the capacity of the transformer can be changed according to the actual load situation, so as to reduce the no-load loss (I. e. internal consumption) and load loss of the transformer itself. And it can also meet the current and future years, the installed distribution transformer has advanced technology and operational reliability.

The S13 type on-load capacity regulating transformer produced by our company is an energy-saving transformer product designed and manufactured according to the above ideas. The product can automatically adjust the voltage and capacity according to the voltage and load fluctuation of the power grid, so as to ensure the stability of power supply quality and reduce the no-load loss of the transformer itself. And the product has a remote communication function, which can monitor the transformer operating status in real time through mobile phone APP and other functions, and control the transformer operating parameters.

• Automatic voltage regulation function

When the voltage fluctuation caused by the instability of the user or line load, the transformer can automatically adjust the voltage level, improve the quality of power supply, extend the life of the equipment, and improve the voltage pass rate of the distribution network load peak and valley.

• Automatic capacity adjustment function

Automatically adjust the capacity according to the load size, so that the transformer automatically runs in the small capacity gear during the load trough period, and the no-load loss will be greatly reduced, which is about 1/3 of the load loss in large capacity, and the energy saving effect is remarkable.

• Distribution monitoring and wireless "four remote"

The on-load capacity regulating and voltage regulating switch of our transformer has a variety of wireless communication modes (WIFI, GSM, GPRS), and has the functions of real-time monitoring, remote control of transformer operation status, viewing and modifying fixed values, etc., which can realize automatic control of distribution network stations.