- 20kV Oil-Immersed Transformer overview>>>
20 Kv three-phase oil-immersed transformer is a critical component in electrical power distribution and transmission systems, designed to efficiently step up or step down alternating current voltages while ensuring reliable operation under heavy loads and harsh environmental conditions.
- 20kV Oil-Immersed Transformer Features>>>
– Mainly used in power generation enterprises, industrial and mining enterprises 20 KV distribution system
– Complies with the European 2015/2014/548/EC ecodesign Tier2 Energy Efficiency Directive
– Products are mainly sold to Spain, Germany, France, Italy, Greece, Iceland, Finland, Iran, Romania, Bosnia and Herzegovina, Togo and other countries and regions
– Executive standard: IEC 60076 series,NF EN；EN 50588-1
- 20kV Oil-Immersed Transformer advantage>>>
– Capable of stable full-load operation under prolonged low-temperature conditions, extending equipment lifespan
– Optimized for loss reduction and acoustic noise suppression
– High-strength mechanical construction with enhanced short-circuit withstand capability
– Environmentally safe insulating medium offering superior corrosion resistance
–No-load loss: not exceed 0.35 kW，Load loss: not exceed 4.3 kW，Efficiency: over 99%，Service life:25-30 years(100 Kva)
- 20kV Oil-Immersed Transformer FAQ
- What is a 20kV Three-Phase Oil-Immersed Transformer?
A 20kV oil-immersed transformer is a power transformer designed to handle three-phase electrical systems with a voltage rating of 20 kilovolts (kV). It uses insulating oil for cooling and insulation.
- What are the main applications of a 20kV oil-immersed transformer?
These transformers are commonly used in power distribution networks, industrial plants, renewable energy systems (like wind and solar farms), and substations for stepping up or stepping down voltage levels.
- How does the oil in the transformer function?
The oil serves two main purposes:
Insulation:Prevents electrical breakdown between components.
Cooling:Dissipates heat generated during operation.
- What are the advantages of 20kV oil-immersed transformers over 20kV dry-type transformers?
– Higher efficiency and better heat dissipation.
– Longer lifespan and higher overload capacity.
– More cost-effective for high-voltage applications.
- What maintenance is required for a 20kV oil-immersed transformer?
Regular maintenance includes:
– Oil testing (dielectric strength, moisture content).
– Checking for leaks and corrosion.
– Inspecting bushings, cooling systems, and protective relays.
- What safety precautions should be taken with 20kV oil-immersed transformers?
– Ensure proper grounding to prevent electric shock.
– Monitor oil levels and quality to avoid overheating.
– Install fire protection systems (like oil containment pits) due to flammable oil.
- What is the typical lifespan of a 20kV oil-immersed transformer?
With proper maintenance, these transformers can last 25-30 years or more, depending on operating conditions.
- Can a 20kV oil-immersed transformer be used outdoors?
Yes, they are designed for both indoor and outdoor installations, but outdoor units require weatherproof enclosures and proper protection against environmental factors.
- What are the common failure modes of 20kV oil-immersed transformers?
– Insulation degradation due to aging or moisture.
– Overheating from overloading or poor cooling.
– Oil leaks or contamination.
– Electrical faults (short circuits, winding damage).
- JUNENGDA ELECTRIC – FREQUENTLY ASKED QUESTIONS (FAQ)
- Company Overview
Q: Is Junengda Electric a manufacturer?
Yes, we are a professional electrical product manufacturer with our own production base and R&D team. Factory visits are welcome—please contact us to arrange an inspection (details in “About Us”).
- Delivery Time
Q: What is the standard lead time?
Standard delivery takes 15–30 days (varies by order complexity/quantity). Expedited options are available upon request.
- Certifications
Q: What certifications do your products have?
All products come with CE/CB/CCC/KEMA certifications. We can arrange additional certifications (e.g., UL, RoHS) per your requirements—just inform us in advance.
- Custom Services
Q: Do you offer OEM/ODM services?
✓ OEM: Production based on your designs/specifications.
✓ ODM: Full customization from design to manufacturing.
Our engineering team ensures flexible solutions for unique needs.
- Quality Control
Q: How do you ensure product quality?
Strict ISO-compliant quality management system.
Optional production process photos/videos for transparency.
Multi-stage inspections before shipment to guarantee zero defects.
- Warranty & Support
Q: What is your warranty policy?
1-year free warranty (from delivery date).
Free replacement for defective parts (extra spare parts provided for bulk orders).
Lifetime technical support.
- Payment Methods
Accepted: T/T (Bank Transfer), Western Union, PayPal. Other methods negotiable.
Need more help?
Contact us: 📞 [+86 18140000678] | 📧 [info@qdjunengda.com]