Excellent Cooling Performance
Long Service Life
Operator Protection
Maintenance Friendly
Low Loss Design
Three Phase Oil-Immersed Transformer
- Superior Cooling
- Long-Life Insulation
- Energy-Saving Design
- Heavy-Duty Build
- Fully Customizable
Product Overview
Oil-Immersed transformers (also called as oil-type transformer or oil-filled transformer) are engineered for reliable power distribution across industrial, commercial, and utility applications. Filled with high-grade mineral or synthetic insulating oil, these transformers offer excellent thermal performance, superior dielectric strength, and long-term operational stability. Designed to deliver safe, efficient, and trouble-free service, they are suitable for indoor or outdoor installations and harsh environmental conditions.
Key Features
Technical Parameter
| Item | Specification |
| Rated Power | 50 kVA to 10 MVA |
| HV Voltage | 6 kV / 10 kV / 11 kV / 33 kV / 35 kV (customizable) |
| LV Voltage | 0.38kV / 0.4 kV / 0.48 kV / 0.6 kV / custom |
| Frequency | 50 Hz / 60 Hz |
| Vector Group | Dyn11, Yyn0, Yd11, or specified |
| Winding Material | Copper or Aluminium |
| Impedance | As per standard or customized |
| Cooling Method | ONAN/ONAF |
| Insulating Oil | Mineral oil (PCB free) |
| Protection Level | IP00 / IP23 / customized |
| Standard | IEC / IEEE |
| Brand | HONCON |
Standards & Compliance
Oil-immersed transformers comply with the following standards and certifications:
International Standards: IEC 60076
Chinese Standards: GB 1094, GB/T 6451
Energy Efficiency Certification: In line with national energy-saving product catalog/As per client’s request
Configuration Options
- Core Type: Core-type
- Cooling Methods: ONAN / ONAF
- Tap Changer: Off-circuit tap changer (OCTC) or on-load tap changer (OLTC)
- Tank Type: Corrugated tank, radiator tank, sealed tank
Accessories:
- Buchholz relay
- Oil temperature controller
- Oil level gauge
- Pressure relief valve
- HV/LV cable box or bushing
FAQ
Q1: What is the MOQ of the order?
A1: One set.
Q2: Do you support custom voltage or capacity?
A2: Absolutely. We can design transformers according to your project specifications.
Q3: How long is your delivery time?
A3: It depends on the order quantity and generally it takes about 25-30days after the deposit is received.
Q4: Which market do you usually sell?
A4: Middle East, Africa, Europe, Asia, etc.
Q5: How long is the warranty?
A5: Within 12 months from sale date.