S20 Three Phase Distribution Transformer - China Manufacturers

Distribution Transformer S20 Three Phase High Quality

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.

Distribution Transformer S20 Three Phase High Quality - Enterprise-Grade Power Solution

Our Distribution Transformer S20 Three Phase High Quality delivers exceptional performance for your energy infrastructure needs. Manufactured by Lijie Electric Power Technology Group—a leader with over 2,000 employees and annual sales exceeding 5 billion RMB—this transformer achieves 20% noise reduction compared to JB/T10088-2004 standards. With a design life of ≥30 years, capacity range from 30-3150kVA, and fully sealed maintenance-free operation, it's engineered for urban grids, industrial plants, and commercial buildings. Our two manufacturing bases spanning 500,000 square meters ensure consistent quality backed by ISO 9001:2015, CE, UL, and IEC certifications.

Distribution Transformer S20 Three Phase High Quality

Why Choose Our S20 Three Phase Distribution Transformer?

Superior Energy Efficiency

You're looking at one of the most advanced energy-saving transformers on the market. Built to GB20052-2020 standards, this unit significantly reduces your operational costs. The high-permeability cold-rolled grain-oriented silicon steel core with fully oblique joints minimizes no-load loss.

Your electricity bills will thank you.

Maintenance-Free Design

The fully sealed corrugated oil tank eliminates the need for an oil conservator. You won't need to lift the core for maintenance. This ONAN oil-immersed self-cooling system operates continuously for 24 hours daily.

No downtime. No hassle.

Built to Last Three Decades

With a design lifespan exceeding 30 years, you're making a long-term investment. The all-copper windings—cylindrical high-voltage and foil/cylindrical low-voltage—provide uniform oil channels and exceptional short-circuit resistance.

Your power infrastructure deserves this durability.

Technical Specifications

Parameter	Specification
Product Model	S20 Type Fully Sealed Transformer
Voltage Level	6kV, 12kV
Capacity Range	30-3150kVA
Phases	Single-phase, Three-phase
Frequency	50Hz, 60Hz
Cooling Method	ONAN (Oil-immersed self-cooling)
Voltage Regulation	Non-excitation, 5 levels
Tap Range	±5%, ±2X2.5%
Connection Group	Yyn0 or Dyn11
Protection Level	IP00 (IP30+ for outdoor substations)
Insulation Level	Power frequency 35kV AC, impulse 75kV
Design Life	≥30 years
Max Operating Temp	40°C (customizable)
Noise Level	20% below JB/T10088-2004 standard

Distribution Transformer S20 Three Phase High Quality

Real-World Applications

Urban and Rural Power Grids

Your community needs solid power. This three stage dissemination transformer handles sudden stack changes with fabulous energetic and warm steadiness. It bolsters short-term over-burden operation whereas keeping up secure temperature thresholds.

Industrial Manufacturing Plants

Factory operations can't bear control disturbances. The transformer's vigorous short-circuit withstand capability keeps your generation lines running smoothly.

Commercial Buildings and New Energy Projects

Whether you're fueling shopping centers or supporting renewable vitality establishments, this hardware adjusts to assorted scenarios. Customization choices are accessible for extraordinary necessities.

What Sets Us Apart?

Manufacturing Excellence: Our Xuzhou and Nantong facilities employ over 160 engineers with doctoral and master's degrees. Every Distribution Transformer S20 Three Phase High Quality unit passes rigorous testing by the National Transformer Quality Supervision and Inspection Center.

Worldwide Quality Guidelines: We hold ISO 9001:2015, CE, UL, and IEC certifications. Our items meet universal unwavering quality and security benchmarks.

Flexible Generation: Generation cycles run from 6 to 30 days depending on your details. We dispatch to Australia, Unused Zealand, India, Vietnam, Malaysia, Indonesia, Kazakhstan, Egypt, Kenya, and beyond.

Complete Bolster: You get specialized documentation, establishment direction, save parts supply, and comprehensive after-sales benefit.

Distribution Transformer S20 Three Phase High Quality

Frequently Asked Questions

Q: What makes the S20 model different from older transformer types?

A: The S20 achieves significantly lower no-load loss and operates 20% quieter than previous standards. The fully sealed design eliminates maintenance requirements that older models demand.

Q: Can this transformer handle voltage fluctuations?

A: Absolutely. The non-excitation voltage regulation with 5 tap positions (±5%, ±2X2.5%) allows you to adjust for voltage variations. The equipment withstands power grid impacts effectively.

Q: How quickly can you deliver a customized unit?

A: Standard models ship within 6-15 days. Custom specifications typically require 15-30 days depending on complexity. We'll provide a precise timeline after reviewing your requirements.

Q: Is installation support available internationally?

A: Yes. We provide detailed technical drawings, operation manuals, test reports, and installation guidance regardless of your location. Our service network covers all major export markets.

Q: What warranty coverage comes with this transformer?

A: We stand behind our quality with comprehensive warranty protection. Specific terms depend on your configuration and operating conditions. Contact us for detailed warranty information.

Ready to Upgrade Your Power Infrastructure?

Transform your energy distribution with the Distribution Transformer S20 Three Phase High Quality. Get a custom quote today: lijieelectrical@gmail.com