Due to their advantages such as strong short-circuit withstand capability, low maintenance workload, high operating efficiency, small size, and low noise, dry-type transformers are commonly used in locations with high performance requirements such as fire protection and explosion prevention. They are safe, fire-resistant, pollution-free, and can operate directly under high-load power consumption.
High voltage insulation is reliable with a triple insulation structure (conductor – fiberglass reinforcement – epoxy resin). Partial discharge level ≤ 10pC. Power frequency withstand voltage of 70kV/1min with no flashover.
Strong impulse withstand capability. Passes the GB 1094.5 standard short-circuit test. Both dynamic and thermal stability of the windings meet national standard requirements.
Good heat dissipation performance and strong overload capability, allowing short-term overcapacity operation under forced air cooling. Temperature field simulation optimizes air ducts, with hot-spot temperature rise 15K lower than the national standard.
The dry-type transformer can be equipped with a comprehensive temperature detection and protection system. An intelligent signal temperature control system is adopted, which can automatically detect and cyclically display the operating temperature of each of the three-phase windings, automatically start and stop the fans, and provide alarm and tripping functions.
Customizable adaptation. Harmonic suppression windings, on-load tap-changers, and anti-condensation heating devices are available to suit special operating conditions.
