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S13 type on-load automatic capacity adjustment distribution transformer

1. Auto Capacity Switching:On-load automatic switching, no power interruption. 2. High Energy Efficiency:Up to 30% more efficient than S13. 3. S13 Performance:Low loss, low noise, sealed, maintenance-free. 4. Dual On-Load Control:Auto capacity + voltage regulation. 5. Lower Investment:One unit replaces two transformers. 6. Flexible Applications:Ideal for variable and seasonal loads. 7. Safe & Reliable:Low failure rate, stable operation.

Product Description

S13 Type On-Load Automatic Capacity Adjustment Distribution Transformer 

When your facility faces fluctuating power demands, you need intelligent equipment that adapts in real-time. The S13 type on-load automatic capacity adjustment distribution transformer from Lijie Electric Power Technology Group delivers enterprise-grade performance with automatic capacity switching—no power interruption required. Our transformers achieve up to 30% higher energy efficiency compared to standard S13 models, operate with low noise below industry standards, and feature sealed, maintenance-free design. Manufactured across 500,000 square meters of advanced facilities with ISO 9001:2015, CE, UL, and IEC certifications, each unit undergoes rigorous testing by China's National Transformer Quality Supervision and Inspection Center.

S13 type on-load automatic capacity adjustment distribution transformer

Why Choose This Smart Distribution Transformer?

Intelligent Capacity Management

Your power needs change throughout the day and across seasons. This transformer automatically adjusts capacity on-load without interrupting service. One unit effectively replaces two traditional transformers, reducing your initial investment and operational complexity.

Dual Control Technology

You get both automatic capacity adjustment and voltage regulation in a single system. This dual on-load control ensures stable power delivery whether you're running at peak capacity or minimal load.

Superior Energy Performance

Energy costs impact your bottom line. Our design builds on proven S13 performance—low loss, quiet operation, and sealed construction—while delivering measurably better efficiency than conventional models.

Ideal Applications

Seasonal Load Variations

Do you involvement sensational contrasts between top and off-peak seasons? Provincial control systems, rural offices, and regular operations advantage massively. Amid active periods, the transformer handles over-burden requests. Amid calm months, it works effectively at decreased capacity, killing the "larger than average gear, underutilized capacity" issue.

Day-Night Load Differences

Residential complexes and enterprises with regular day shifts face significant load variations between daytime and nighttime hours. The S13 type on-load automatic capacity adjustment distribution transformer adapts automatically, optimizing performance around the clock.

Variable Industrial Loads

Manufacturing facilities with fluctuating production schedules require flexible power distribution. This transformer responds to changing demands instantly, protecting your equipment while minimizing energy waste.

Technical Specifications

Parameter Specification
Voltage Level 6kV, 12kV
Capacity Range 30-3150kVA
Frequency 50Hz, 60Hz
Phase Configuration Single-phase, Three-phase
Voltage Regulation Non-excitation type
Tap Range ±5%, ±2×2.5%
Connection Group Yyn0 or Dyn11
Cooling Method Oil-immersed self-cooling
Insulation Level AC withstand: 35kV / Impulse: 75kV
Operating Temperature Maximum 40°C outdoor (customizable)
Impedance Voltage Per technical parameters or customer requirements

S13 type on-load automatic capacity adjustment distribution transformer

Customization for Your Unique Requirements

Tailored Solutions

No two facilities are identical. We customize transformers for special operating conditions including:

  • High-altitude installations
  • Corrosive environments requiring enhanced protection
  • Flashover prevention in challenging conditions
  • Low-temperature cold resistance specifications

Flexible Parameters

Alter impedance voltage, association bunches, assurance levels, and cooling strategies to coordinate your correct necessities. Our building group collaborates with you to guarantee legitimate measuring based on lattice arranging and control stack calculations.

Quality You Can Trust

Every unit undergoes comprehensive factory testing:

  • Withstand voltage testing
  • Sealing integrity verification
  • Loss measurement analysis
  • Dynamic and thermal stability evaluation

All tests meet or exceed national standards before shipment.

Manufacturing Excellence

Lijie Electric Power Technology Group operates two state-of-the-art R&D and manufacturing bases in Xuzhou and Nantong. With over 2,000 employees including 160+ engineers holding advanced degrees, we combine technical expertise with production scale.

Our annual sales exceed 5 billion RMB, reflecting the trust placed in us by customers across Australia, New Zealand, India, Vietnam, Malaysia, Indonesia, Kazakhstan, Egypt, Kenya, and beyond.

Recognized Quality

  • National High-Tech Enterprise
  • Quality-Trusted Enterprise (Jiangsu Province)
  • Specialized, Refined, and New "Little Giant" Enterprise

Comprehensive Support Services

Total Documentation

You get point by point specialized drawings, operation manuals, and total test reports with each transformer.

Installation Guidance

Our specialized group gives establishment bolster to guarantee legitimate setup and ideal execution from day one.

After-Sales Commitment

We supply save parts and continuous specialized help. Our benefit meets GB/T 27922-2021 after-sales assessment standards.

Fast Generation Cycles

Standard generation cycles extend from 6 to 30 days depending on customization necessities, making a difference you meet extend due dates.

S13 type on-load automatic capacity adjustment distribution transformer

Frequently Asked Questions

Q: How does programmed capacity alteration work without hindering power?

A: The on-load tap changer works whereas the transformer remains energized. It consistently switches between capacity settings based on stack prerequisites without breaking the circuit.

Q: What taken a toll investment funds can I anticipate compared to introducing two isolated transformers?

A: You dispense with the capital cost of a moment transformer, diminish establishment costs, minimize space necessities, and lower continuous upkeep expenses—all whereas keeping up adaptability to handle variable loads.

Q: Can this transformer handle extraordinary natural conditions?

A: Yes. We customize units for tall elevation, destructive climates, extraordinary temperatures, and other challenging situations. Examine your particular conditions with our building group amid the determination phase.

Q: What certifications guarantee worldwide quality standards?

A: Our transformers carry ISO 9001:2015, CE, UL, and IEC certifications. Items experience testing by the National Transformer Quality Supervision and Assessment Center and Wuhan Tall Voltage Inquire about Institute.

Q: How do I select the right capacity for my application?

A: Consider your evaluated capacity needs, voltage level, establishment environment, and stack characteristics. We suggest conducting control stack calculations adjusted with lattice arranging. Our group helps with exact coordinating to anticipate determination mistakes.

Get Your Custom Solution Today

Contact our team to discuss your specific requirements and receive expert guidance on the S13 type on-load automatic capacity adjustment distribution transformer configuration that fits your needs.

Email us: lijieelectrical@gmail.com

Customer reviews background image

Here are some reviews from our users:

April 27, 2025

With a tight project schedule, the manufacturer delivered on time, and on-site technical personnel provided guidance throughout the entire installation and commissioning process; the collaboration was highly efficient and hassle-free.

July 2, 2025

During the preliminary phase, a selection plan was custom-tailored based on the actual site load requirements, resulting in a high degree of parameter compatibility. After-sales support responds within two hours, and ongoing technical support for operation and maintenance is comprehensive; we feel completely confident in a long-term partnership.

November 18, 2025

Deployed as a supporting component for a 35kV grid-connection project at a photovoltaic power station, the equipment operates for an average of 16 hours daily. It demonstrates excellent control over no-load losses, ensures smooth power generation and grid integration, and effectively reduces the station's overall energy consumption.

January 30, 2026

Under the continuous, high-load operating conditions of a factory production line, the equipment maintains stable electrical parameters and exhibits strong overload resistance, thereby guaranteeing an uninterrupted power supply for industrial production.

April 3, 2026

Integrated as a supporting component for a new energy photovoltaic grid-connection system, the manufacturer provided professional technical coordination and timely after-sales support, ensuring seamless adaptation to the specific electrical operating conditions required for grid integration.

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