The description of explosion-proof dry-type transformers
Explosion-proof dry-type transformers for mining are the main components of various power supplies and electrical equipment. Isolation transformers are composed of cylindrical windings and laminated iron cores. . The company adopts manufacturing technology, with imported Spanish winding machines and a full set of vacuum pressure dipping equipment. The windings of explosion-proof dry-type transformers are made from the whole winding method. Explosion-proof dry-type transformers is vacuum dipping to make the transformer’s insulation level reach F or H. The output and input voltage of mine flameproof dry-type transformers can be designed according to customer requirements. There are various specifications such as single-phase, three-phase or multiple inputs and outputs.
The material of explosion-proof dry-type transformers
①Iron core
Using new high-quality high-silicon silicon steel sheet, the main material is 0.35 thick H18, H14, H12, Z11 high-quality silicon steel sheet. We choose appropriate materials according to the requirements of the guest room and the use conditions (conventional materials are new high-quality silicon steel sheets).
② the wire of explosion-proof dry-type transformers
Use PEW, UEW, EIW, SEIW, FEAI enameled wire and glass fiber covered wire. The temperature resistance grades are F (155 ° C), H (180 ° C), HC (200 ° C), and C (220 ° C). (Conventional temperature resistance class is H class 180 ℃).
③the insulation material of explosion-proof dry-type transformers
Using high temperature resistant insulation paper as insulation material, with multiple properties of high temperature insulation, flame retardant and moisture resistance.
④Terminal block of explosion-proof dry-type transformers
Small power uses terminal block, beautiful appearance, excellent pressure resistance, temperature resistance, flame retardant performance. High power uses high-quality copper bars.
⑤Iron feet of explosion-proof dry-type transformers
The main use of CNC bending cold-rolled sheet, environmental protection plating such as multicolored (golden), blue zinc (silver white), white zinc (ivory white), surface anodizing (black) are available.
The structure of explosion-proof dry-type transformers
The flameproof dry-type transformer for mine can be divided into shell type according to the structure and vertical type according to the installation method.
Mine explosion-proof dry-type transformer is a new type of transformer power source developed in China by absorbing foreign products of the same level. It has the characteristics of small size, reliable wiring, high protection level, and good performance.
The advantages of explosion-proof dry-type transformers
1. Explosion-proof dry-type transformers is convenient to obtain appropriate voltage; the secondary must be grounded.
2, anti-interference.
3.Explosion-proof dry-type transformers is environmental.
The ambient air temperature is -5 ℃ to + 40 ℃, and the average value within 24 hours does not exceed + 35 ℃;
The altitude of the installation site does not exceed 2000M;
The relative humidity of the atmosphere does not exceed 50% when the ambient air temperature is + 40 ° C and explosion-proof dry-type transformers can have higher relative humidity at lower temperatures. The monthly average high humidity of a wet month is 90%, and the average low temperature of the month is + 25 ℃ and take into account the condensation on the product surface due to temperature changes.