The KSG series explosion-proof dry-type transformers (hereinafter simply referred to as transformers) are suitable for explosive hazardous areas underground in coal mines. They provide a 127V power supply for coal electric drills in AC power lines at 50Hz/and voltages up to 660V. The transformers are designed and tested in accordance with relevant standards such as GB3836.1-83 "General Requirements for Explosion-proof Electrical Equipment Used in Explosive Environments" and GB3836.2-83 "Explosion-proof Electrical Equipment for Explosive Environments - Explosion-proof Electrical Equipment of Type 'd'".

Altitude not exceeding 2000m, atmospheric pressure 80～110 KPa.2. Surrounding environmental temperature: -5℃ to +40℃3. Relative air humidity not exceeding 95% (+25℃);4. In hazardous environments;5. In environments with non-destructive insulation for gases or steam;6. In areas free of vibration and shock.7. The installation slope from the horizontal plane must not exceed 15°.8. Areas to prevent dripping.9. Installation Category: Class III

10. Pollution Level: Level 3