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How to choose the magnetic flux density in the core of transformer-class products? When selecting the magnetic flux density in the core, several considerations need to be taken into account. (1) Material of electrical steel sheets: If the magnetic flux density is chosen too high, the no-load current and no-load losses will increase rapidly. This is because electrical steel sheets exhibit magnetic saturation, and the relationship between magnetic flux and the current generating the flux is not linear. With an increase in voltage, the magnetic flux density also increases. When the magnetic flux density reaches a certain level, further increases in voltage result in minimal increases in saturated magnetic flux […]

What Are the Special Protection Requirements for Explosion‑Proof Transformers? In high-risk industries such as petrochemicals, mining, and pharmaceutical manufacturing, explosion-proof transformers are core equipment for ensuring safe power supply. These special environments are often laden with flammable gases, vapors, or dust – where even a tiny electrical spark can trigger a catastrophic explosion. Therefore, explosion-proof transformers must meet multiple stringent protection requirements far exceeding those of standard products to build a robust safety barrier. Content 1. Enclosure Protection Rating (IP Code): Keeping External Hazards Out 1.1 Core Requirement:  In explosive atmospheres, the ingress of external dust or water into the equipment can lead to two critical risks: (1) Dust Accumulation

Transformers are widely used in electrical systems to transfer electrical energy from one circuit to another. Two common types of transformers are autotransformers and isolation transformers. Although they both perform the same basic function, they have significant differences. An autotransformer is a type of transformer that has only one winding that serves as both the primary and secondary winding. The voltage is stepped up or down by tapping the winding at different points. In an autotransformer, the primary and secondary winding share a common portion of the winding. As a result, the voltage on the primary and secondary sides is not completely isolated from each other. An isolation transformer, on