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​As a high-tech manufacturer specializing in medium & high voltage power distribution equipment, CEHO POWER TECHNOLOGY GROUP CO.,LTD. (CEHO) launches two core product lines: oil-immersed transformers and resin cast dry-type transformers. Rated capacity ranges from 30kVA to 20000kVA at 10kV/35kV, complying with GB & IEC 60076 standards. CEHO delivers reliable power solutions for solar & wind farms, municipal grids, industrial parks, commercial buildings and data centers.

As the core equipment of the power system, the operating status of oil-immersed transformers is directly related to the safety and stability of the power grid. However, in actual operation, transformer overheating is a common abnormal phenomenon that requires high vigilance. If the cause is not identified and dealt with in time, it will not only accelerate the aging of the insulation material and shorten the life of the equipment, but in severe cases may even cause catastrophic accidents such as fires or explosions. The causes of transformer overheating are complicated and can usually be analyzed from three dimensions: external operating environment, cooling system and internal electrical faults.

Distribution transformer is the "heart" of the distribution network, responsible for voltage conversion and power distribution, which is directly related to the safety and stability of power supply. Its design life is generally 20 to 30 years, but in actual operation, affected by various factors such as load, temperature, insulation, environment, protection, operation and maintenance, the actual life is often greatly shortened. This article systematically sorts out the key factors that affect the life of the transformer and provides practical daily maintenance methods to help extend the life of the equipment, reduce costs and increase efficiency.

Low-voltage switchgear refers to electrical devices used in power systems with AC rated voltages of 1000V and below and DC rated voltages of 1500V and below to perform the functions of making, breaking, protecting, controlling and isolating. They are widely used in industrial plants, commercial buildings, data centers, rail transit and civil power distribution, and are key components to ensure the safety of electricity and the reliable operation of the system. According to different functions and application scenarios, low-voltage switchgear can be mainly divided into the following categories.

In scenarios such as power distribution, building power supply, and industrial production, transformers are the core equipment to ensure stable power transmission. When faced with the choice of the same power and voltage level, many people will wonder: Dry-type transformers are more expensive and slightly larger, but they have become the first choice for hospitals, shopping malls, subways, high-rise buildings, and underground power distribution rooms. There is only one core reason - safety. With the same power output, why is a dry-type transformer safer than an oil-immersed transformer? The answer lies in the material, structure, operating characteristics and fire and explosion protection capabilities.

Amorphous alloy transformers are known as "energy-saving stars" in the field of distribution transformers due to their excellent low-loss characteristics. This article focuses on the no-load loss characteristics of amorphous alloy transformers, conducts a multi-dimensional comparison with traditional silicon steel sheet transformers, and systematically discusses feasible paths to improve its energy efficiency, providing a reference for engineering selection and technology development.