Dry-type transformers for mining solutions

Time：2025-04-1    Auther：ZTelec-www.ztelectransformer.com

Dry-type transformers refer to transformers whose cores and windings are not immersed in insulating oil. Their windings are usually cast with epoxy resin or other resin materials, thus achieving good insulation and mechanical strength. Dry-type transformers are widely used in the mining industry for their safety, fireproof and pollution-free characteristics.

Structural features of dry-type transformers in the mining industry

Fire prevention, pollution-free: Dry-type transformers do not use harmful liquids or gases, so they will not release harmful gases into the environment. They have high fire and explosion resistance and are suitable for high-risk environments such as mines.

Low loss and low noise: Dry-type transformers have the characteristics of low loss and low noise, have obvious energy-saving effects, and are maintenance-free.

Good heat dissipation performance and strong overload capacity: Dry-type transformers have excellent heat dissipation performance and strong overload capacity, and can increase capacity operation through forced air cooling.

Good moisture-proof performance: Dry-type transformers are suitable for operation in high humidity and other harsh environments, and have good moisture-proof performance.

‌High mechanical strength and strong short-circuit resistance‌: Dry-type transformers adopt advanced technology, with high mechanical strength, strong short-circuit resistance, small partial discharge, good thermal stability, high reliability and long service life‌.

‌Equipped with a complete temperature detection and protection system‌: Dry-type transformers are equipped with an intelligent signal temperature control system. So it can automatically detect and display the working temperature of the three-phase winding, and has alarm, tripping and other function settings‌.

‌Oil-free design‌: Dry-type transformers adopt an oil-free design, which avoids safety hazards such as fire, explosion and pollution. And the maintenance and overhaul workload is relatively small‌.

Application of dry-type transformers in the mining industry

Dry-type transformers are widely used in the mining industry, including but not limited to the following aspects:

Open-pit mining operations: In large open-pit mines, dry-type transformers are responsible for powering mining equipment such as crushers and conveyor belts to ensure the stable operation of ore mining and transportation processes. Its excellent heat dissipation performance and explosion-proof function enable it to work reliably in harsh environments.

Underground coal mining system: In coal production, electrical equipment and lighting facilities in the mine require stable power support. Dry-type transformers can operate normally in high temperature and high humidity environments to ensure the smooth progress of underground safety production. In addition, it can also meet the voltage demand adjustment and safety isolation requirements of special equipment, reduce energy consumption and improve production efficiency by optimizing current distribution, and achieve the goal of energy saving and environmental protection.

Ore processing and transportation: In the process of ore processing, dry-type transformers provide power support for crushing, screening, grinding and other equipment. In the process of ore transportation, it also provides stable power supply for conveyor belts, hoists and other equipment.

When selecting a dry-type transformer, factors such as its rated power, voltage, environmental adaptability, reliability and safety should be fully considered to ensure that the equipment can meet the power demand of mines and mining sites. During installation and maintenance, we should strictly carried out operation according to relevant regulations to ensure stable operation of the equipment and extend its service life. Through reasonable selection, installation and maintenance management, dry-type transformers will provide safer, more reliable and efficient power support for the mining industry.