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Three-phase Transformer

Jiangsu-Delangshi-Biotechnology-Co-Ltd- (1)
Jiangsu-Delangshi-Biotechnology-Co-Ltd- (1) — 1

Jiangsu-Delangshi-Biotechnology-Co-Ltd- (1)

Category: Three-phase Transformer

Oil-immersed transformer uses insulating oil for cooling and insulation. With good heat dissipation, strong overload capacity and stable performance, it is the most widely adopted transformer in global power transmission & distribution projects, commonly applied in outdoor grids, renewable power plants, mining and large infrastructure.
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  1. Excellent heat dissipation & insulation: Insulating oil serves as both cooling medium and dielectric material. It features high heat transfer efficiency for high voltage & large capacity applications and strong short-time overload capability.
  2. High reliability & long service life: With proper maintenance, service life reaches 25–35 years. Strong short-circuit resistance for continuous long-term operation.
  3. Cost-effective: Lower investment cost compared with dry-type transformers at the same rating, especially for large-capacity projects.
  4. Adaptable to harsh outdoor conditions: Rainproof and dustproof, stable operation under high temperature, dusty and remote field environments.
  5. Convenient condition monitoring: Internal faults can be predicted via oil sampling and gas analysis for predictive maintenance.
  6. Notes: Insulating oil is flammable. Fire protection and anti-leakage measures are required during installation. Periodic inspection of oil level and oil quality is necessary.

Parameter

Application

  • Power transmission & distribution substations, urban power grids and rural electrification projects
  • Solar farms, wind power plants and other renewable energy step-up / distribution projects
  • Heavy industry power supply for factories, mines, oil & gas plants
  • Large infrastructure: railway, water conservancy, airport, port and construction sites
  • Outdoor power distribution for residential communities and commercial parks
  • Independent outdoor distribution projects (Pad-mounted transformers adopt oil-immersed structure)

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