SCB (15, 17,19) Type Amorphous AlloyPower Transformer
Scope of application
Amorphous alloy is a new type of energy-saving material, its physical state is the metal atoms are disordered amorphous arrangement, it is completely different from the silicon steel crystal structure is more conducive to magnetization and demagnetization, so as to greatly reduce no-load loss.
SCBH(15, 17, 19) series high efficiency and energy saving fully enclosed amorphous alloy distribution transformer is a new type of transformer designed and manufactured by the company, the outstanding feature is energy saving and consumption reduction, its no-load loss than SCB11 type national standard decreased by about 70-80%, the operation economic benefits are obvious. Amorphous alloy transformer has low no-load loss, energy saving, obvious advantages of environmental protection, in line with the industrial policy of "saving resources, protecting the environment, building a saving society" advocated by the Chinese government, and has broad prospects for development. Amorphous alloy core materials are very sensitive to mechanical stress, both tensile and bending stresses will affect their magnetic properties. Therefore, in the transformer body structure should be considered to minimize the force of the iron core. The magnetic time-stretching degree of amorphous alloy is about 10% higher than that of silicon steel sheet, and it should not be excessively clamped, so the noise of amorphous alloy transformer is higher than that of silicon steel sheet core transformer
In view of the characteristics of amorphous alloy core, our company takes the following measures in the production of amorphous alloy core transformers :1, due to the low saturation magnetic density of amorphous alloy materials, in the product design, the rated magnetic flux density should not be selected too high, usually choose 1.3~1.35T magnetic flux density can obtain a better no-load loss value.
2, in order to enable users to obtain the benefits of maintenance-free or less maintenance, the amorphous alloy distribution transformer products are designed to complete the sealed structure.
3, from the electrical performance. In order to reduce the shear of the core sheet, the core of the whole product is composed of three-phase three-column core, and each phase winding is set on two independent frames of the magnetic circuit. In addition to fundamental magnetic flux, there are three harmonic magnetic flux in each frame, and in two coil core frames in a winding, the third harmonic magnetic flux is just opposite in phase and equal in value, so the third harmonic magnetic flux in each set of windings is zero. If the first side is a D connection, there is a third harmonic current loop, when the induced second side voltage waveform, there will be no third harmonic voltage component. Therefore, the amorphous alloy core transformer connection group is :Dyn11.4, which makes the amorphous alloy core, pull screw, clamp and foot become a solid whole, and makes the iron chip in a non-stressed state, so that the vibration caused by magnetic hysteresis of the core is minimal and the noise is greatly reduced.
5, between the upper bending plate and the iron core, between the foot and the iron core and the bottom of the box are placed oil-resistant rubber plates to achieve the purpose of vibration reduction and noise reduction.
Product standard
IEC60076-1:1993 Power transformers
Gb10994.1-1996 Power transformer
GB/T22072-2018 dry amorphous alloy iron core distribution transformer technical parameters and requirements
JBIT10088-20046kV~500kV power transformer sound level
Order instructions
When ordering, the product model, rated capacity, high and low voltage rated voltage, high pressure by range, phase number, frequency, connection group label, etc.
