Product Standards
GB1094.1-2013General rules for power transformers
GB1094.2-2013Power Transformer Temperature Rise
GB1094.3-2003Insulation Level and Insulation Test of Power Transformers
GB1094.5-2008Power transformer withstands short circuit capability
GB/T1094.10-2003Power transformers - Part 10: Determination of sound levels
GB/T25446-2010Oil immersed amorphous alloy core distribution transformer technical parameters and requirements
Conditions
1. Conditions of normal environment: The altitude does not exceed 1000m;
2. The highest ambient temperature +40 °C, the lowest -25 °C;
3. Conditions for special environments: Altitude over 1000m;
4. The highest ambient temperature +40 °C, the lowest -45 °C. (Detailed description when ordering);
5. Installation site: no corrosive gas, no obvious dirt environment;
Note: According to the agreed conditions, to provide users with products under special conditions of use.
Structural Features
Iron core:The magnetic material of iron core uses amorphous alloy.Since the amorphous alloy does not have a crystal structure and has a soft magnetic characteristic,the area of the hysteresis loop is very narrow, the magnetization
power is small, the electrical resistivity is high, and the eddy current loss is small, so the no-load loss and no-load current of the transformer made of this material are used. very low. The core is composed of four separate core frames in the same plane
to form a three-phasefive-column type. It must be annealed, and it must have a cross-barrier joint with a rectangular cross-sectional shape.
Coil: In addition to using low-voltage windings (160kVA or less) with copper conductors, a cylindrical structure made of copper foil isgenerally used; high-voltage windings use a multi-layered cylindrical structure to balance the winding ampere distribution and magnetic flux leakage. High-voltage and low-voltage windings are wound together with wire tension devices to form rectangular coils, and the coils are solidified by hot-pressing and shaping to enhance the mechanical strength of the windings and the ability to withstand short circuit.
Oil tank: It adopts a beautiful full-sealing and maintenance-free corrugated structure. Through advanced oil tank production technology,it undergoes strict pressure..
