The description of SG (B) 10 type H insulated dry-type power transformer
SG (B) 10 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 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 advantages of SG (B) 10 type H insulated dry-type power transformer
The core of SG (B) 10 type H insulated dry-type power transformer 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 to make the compressor have low no-load loss and noise. The processing technology not only reduces the noise of the SG (B) 10 type H insulated dry-type power transformer, but also prevents the iron core from rusting during the operation of the transformer.
The iron core 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. The winding is fixed by an elastic pad. The buffer structure can reduce the degree of vibration and noise.
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) 10 type H insulated dry-type power transformer adopts a foil-type high-current spiral structure with a longitudinal airway. The moisture-proof performance of the coil after diffuse staining is more able to withstand impacts, never crack, and no partial discharge. It is easy to dry decompose and recover after life, and protect the environment.
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 that can prevent water inlets within 60 ‘angle from the vertical.
To protect the coil from overheating, SG (B) 10 type H insulated dry-type power transformer 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 SG (B) 10 type H insulated dry-type power transformer.