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Special purpose transformer

SG (B) 13 type H insulated dry-type power transformer

SG (B) 13 type H insulated dry-type power transformer

The features of SG (B) 13 type H insulated dry-type power transformerSG (B) 13 type H insulated dry-type power transformer has strong thermal shock resistance,

The features of SG (B) 13 type H insulated dry-type power transformer

SG (B) 13 type H insulated dry-type power transformer has strong thermal shock resistance, large overload capacity, flame resistance, high fire resistance, low loss, small partial discharge, low noise, no harmful gas, and no environmental pollution , Insensitive to humidity, dust, small size, non-cracking, easy to maintain, therefore, it is suitable for use in harsh environments with high fire resistance requirements, large load fluctuations, and dirty and humid environments such as: airports, power plants, metallurgical operations, hospitals, high-rise buildings, shopping malls, densely populated areas, and special environments such as petrochemicals, nuclear power plants and nuclear submarines.

The core of SG (B) 13 type H insulated dry-type power transformer

The core is made of imported grain-oriented high-quality and high-permeability silicon steel sheets laminated with a 45 ° full oblique seam structure. The elastic fixing device is used between the winding and the core, so that the compressor has low no-load loss and noise. The processing technology not only reduces the noise of the SG (B) 13 type H insulated dry-type power transformer , but also prevents the iron core from rusting during the operation of the transformer.

The iron core of SG (B) 13 type H insulated dry-type power transformer is moderately clamped by a pull screw, the upper and lower clamps are connected by a pull plate and fixed to the base as a whole, and the winding is fixed by an elastic pad. The buffer structure can reduce the degree of vibration and noise.

High and low voltage coils of SG (B) 13 type H insulated dry-type power transformer

The high and low voltage coils are made of Nomex insulation material, and they have been subjected to multiple solvent-free paint varnishes by VPI vacuum pressurization equipment. The high-voltage coil adopts a continuous structure with high mechanical strength and good heat dissipation conditions, which avoids the shortcomings of high-layer voltage, poor heat dissipation, easy thermal breakdown, and low mechanical strength of the multilayer cylindrical coil, thereby improving product operation. The low-voltage coil of SG (B) 13 type H insulated dry-type power transformer adopts a foil-type high-current spiral structure with a longitudinal airway. The coils with diffused stains have excellent moisture resistance, can withstand shocks, have no cracks, no partial discharges, and are easy to decompose and recover after life, protecting the environment.

Shell of SG (B) 13 type H insulated dry-type power transformer

If required by the user, our company can provide enclosures with IP20 and IP23 protection.

The meaning of enclosure protection grade IP20 is: no solid foreign objects with a diameter of 12mm are allowed to enter. In order to ensure the circulation of cooling air, the bottom and top of the casing are made of mesh plates. The meaning of the protection class IP23 is the same as IP20, and it can prevent water inlets within 60 'angle from the vertical line.

Overheating protection of SG (B) 13 type H insulated dry-type power transformer

To protect the coil from overheating, SG (B) 11 dry-type transformers of 315KVA and above are equipped with a temperature display protection device. This device uses the temperature sensing element embedded in the low voltage winding as the signal source of the digital display instrument. When the temperature in the low voltage winding changes, the temperature sensing digital display instrument displays a new temperature value, and performs control and alarm according to this temperature value. Function to protect the transformer.

Overload capacity of SG (B) 13 type H insulated dry-type power transformer

SG (B) 13 dry-type power transformer adopts new structure, new materials and new technology. It has good heat dissipation conditions, long thermal life and strong overload capacity. It can work safely and reliably for a long time under 20% overload. In the old 23 environment, no fan cooling is required, and it can still run at full load for a long time.

Safety of SG (B) 13 type H insulated dry-type power transformer

The SG (B) 13 type H insulated dry-type power transformer is a dry-type transformer with good safety performance today. All insulation materials are non-combustible, self-extinguishing, non-toxic, and the flammable substances are less than 10% of the epoxy castable products. They are burned at a high temperature of 8OO ℃ for a long time without the generation of toxic fumes. The SG (B) 11 new product with toxic gas defects is even more superior in places with high safety requirements, hot and humid, and poor ventilation, such as power, subway, ship, chemical, and metallurgy.

The reliability of SG (B) 13 type H insulated dry-type power transformer

The special coil design, technology and materials of SG (B) 13 new products make the product's three anti-performance properties (moisture-proof, mildew-proof, and salt-fog-proof), more able to withstand thermal shock, and no cracks or partial discharge . The insulation system based on excellent electrical and mechanical properties throughout the life of the transformer. The material is not easy to age, is resistant to shrinkage and compression, and is extremely resilient, so it can ensure that the transformer remains tightly structured even after years of use and can withstand the short circuit pressure.

Environmental protection of SG (B) 13 type H insulated dry-type power transformer

SG (B) 13 new product can be decomposed and recovered after its lifetime, which overcomes the defects of epoxy resin cast thousand-type transformers which are solidified and integrated by dry resin and glass fiber, resulting in non-decomposable and polluted environment after its lifetime.

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