S20 Oil-Immersed Distribution Transformer

S20 Type Level 2 Energy Efficiency Oil-Immersed Distribution Transformer

1. Low loss, fully sealed, non-excitation voltage regulation (5 levels), 24-hour uninterrupted power supply, long annual operating time (design life ≥ 30 years). 2. Cooling method: ONAN oil-immersed self-cooling. 3. High-permeability cold-rolled grain-oriented silicon steel sheets with fully oblique joints, no punching, low noise, and low loss. 4. Fully sealed corrugated oil tank, no oil conservator; fully sealed structure, no core lifting required, maintenance-free. 5. High-permeability grain-oriented silicon steel sheets, multi-level joints, low noise; Protection level: IP00 (outdoor transformer substations can reach IP30 or higher). 6. Windings: All copper, high-voltage cylindrical type, low-voltage foil/cylindrical type, uniform oil channels, strong short-circuit resistance. 7. Applicable scenarios: Suitable for urban and rural power grids, industrial plants, commercial buildings, new energy supporting facilities, and other diverse scenarios. 8. Excellent dynamic and thermal stability, able to withstand power grid impacts and sudden load changes; supports short-term overload operation, strictly controls temperature rise threshold, does not damage insulation layer, and ensures equipment lifespan. 9. Standardized design; customization available for special requirements.

S20 Type Level 2 Energy Efficiency Oil-Immersed Distribution Transformer

When your facility demands reliable, maintenance-free power distribution, the S20 Type Level 2 Energy Efficiency Oil-Immersed Distribution Transformer from Lijie Electric delivers enterprise-grade performance. With a design life exceeding 30 years and fully sealed construction, this transformer eliminates moisture and oxidation concerns. Our solution offers 30-3150kVA capacity range, achieving superior energy efficiency compared to legacy S13 and S18 models. Manufactured at our 500,000-square-meter facilities by over 2,000 specialists, each unit features high-permeability grain-oriented silicon steel cores and all-copper windings that ensure 24-hour uninterrupted operation with remarkable cost savings over its lifetime.

S20 Type Level 2 Energy Efficiency Oil-Immersed Distribution Transformer

Why Choose Our Oil-Immersed Distribution Transformer?

You need power equipment that works as hard as you do. Our product combines proven technology with innovative design to reduce your operational costs.

Superior Energy Performance

Lower vitality utilization implies diminished power bills. This transformer employs cold-rolled grain-oriented silicon steel sheets with completely angled joints. You'll take note the contrast in your month to month working costs. The multi-level center joint plan minimizes misfortunes amid control conversion.

Maintenance-Free Operation

Your upkeep group has superior things to do. The completely fixed layered oil tank plan disposes of the conventional oil conservator. Transformer oil never contacts the outside environment. No dampness interruption. No oxidation issues. No standard support required. You spare time and money.

Built to Last Decades

Investment assurance things. With a plan life surpassing 30 a long time, this hardware serves your office for eras. The all-copper windings give great warm solidness. Temperature rise remains inside secure limits that protect separator keenness. You can depend on steady execution year after year.

Technical Specifications

Parameter	Specification
Voltage Level	6kV, 12kV
Capacity Range	30-3150kVA
Frequency	50Hz, 60Hz
Phases	Single-phase, Three-phase
Cooling Method	ONAN (Oil-immersed self-cooling)
Voltage Regulation	Non-excitation, ±5%, ±2×2.5% (5 levels)
Connection Group	Yyn0 or Dyn11
Design Life	≥30 years
Protection Level	IP00 (IP30+ for outdoor substations)
Insulation Level	Power frequency 35kV AC, Impulse 75kV L1
Max Operating Temperature	40℃ (customizable)
Standards Compliance	GB/T 1094, GB/T 6451

S20 Type Level 2 Energy Efficiency Oil-Immersed Distribution Transformer

Perfect Applications for Your Needs

Whether you're upgrading urban infrastructure or powering remote facilities, this S20 Type Level 2 Energy Efficiency Oil-Immersed Distribution Transformer adapts to diverse scenarios:

Urban and rural power distribution networks
Industrial manufacturing plants
Commercial buildings and shopping centers
New energy projects and renewable installations
Mining operations and heavy industry

The robust design handles sudden load changes without compromising safety. Short-term overload capability gives you flexibility during peak demand periods.

What Makes Lijie Electric Different?

You merit a accomplice who gets it your challenges. Our yearly deals surpass 5 billion RMB since we center on what things to you. With ISO 9001:2015, CE, UL, and IEC certifications, we meet universal quality measures. Our 160+ engineers always progress plans based on real-world feedback.

We offer customization when standard arrangements do not fit. Generation cycles run from 6 to 30 days depending on your details. Total documentation arrives with each transformer—drawings, manuals, and test reports.

S20 Type Level 2 Energy Efficiency Oil-Immersed Distribution Transformer

Frequently Asked Questions

Q: How does the S20 model compare to older S13 or S18 transformers?

A: The product achieves lower no-load and load losses. The fully sealed design eliminates moisture problems common in older models. You'll experience fewer failures and lower total ownership costs.

Q: Does the fully sealed design really eliminate maintenance?

A: Yes. The corrugated tank expands and contracts with temperature changes. No oil conservator means no air contact. You won't need to monitor oil quality or perform regular oil changes like traditional designs require.

Q: Can this transformer handle voltage fluctuations in my area?

A: The non-excitation voltage regulation provides five tap positions (±5%, ±2×2.5%). You adjust taps during scheduled shutdowns to match local grid conditions. This suits areas with relatively stable voltage requirements.

Q: What about noise levels in residential areas?

A: The grain-oriented silicon steel core with multi-level joints significantly reduces operational noise. We can provide specific decibel ratings based on your capacity requirements.

Q: Do you provide international shipping and installation support?

A: Absolutely. We export to over 15 countries across Asia, Africa, and Oceania. Our team provides installation guidance, technical support, and spare parts supply wherever you're located.

Get Your Custom Solution Today

Ready to upgrade your power distribution system with S20 Type Level 2 Energy Efficiency Oil-Immersed Distribution Transformer? Contact our technical team at lijieelectrical@gmail.com for specifications tailored to your project requirements.