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.
S13 type fully sealed distribution transformer
1. Low loss, fully sealed, non-excitation voltage regulation (5 levels), 24-hour uninterrupted power supply, long annual operating time.
2. Cooling method: ONAN oil-immersed self-cooling.
3. High-permeability cold-rolled grain-oriented silicon steel sheets (0.23mm grade), fully oblique joints, no punching, low noise, low loss.
4. Fully sealed corrugated oil tank: no oil conservator, corrugated plate automatically compensates for oil volume changes; completely isolated from the atmosphere, maintenance-free, prevents oil aging, and extends lifespan.
5. Windings: high-purity oxygen-free copper wire; cylindrical/continuous type, uniform oil channels, strong short-circuit resistance.
6. Applicable scenarios: urban residential areas, commercial complexes, industrial park power distribution rooms; supporting facilities for box-type substations, ring main units, and pole-mounted substations; locations with high requirements for energy saving, maintenance-free operation, and low noise.
7. Standardized design, special requirements can be customized.
Product Description
S13 Type Fully Sealed Distribution Transformer - Energy-Efficient Power Solution
Lijie Electric's S13 type fully sealed distribution transformer delivers enterprise-grade performance with 30% lower no-load losses compared to S11 models. Our transformers feature fully sealed corrugated oil tanks, high-purity oxygen-free copper windings, and high-permeability silicon steel cores (0.23mm grade). With capacities ranging from 30-3150kVA and noise levels 3-5 dB lower than previous generations, you get 24-hour uninterrupted power supply with 20-30 years lifespan. Backed by our 500,000-square-meter manufacturing facilities and a team of over 160 engineers, we ensure quality that meets GB 20052-2020 Level 3 energy efficiency standards.
Why Choose Our Fully Sealed Distribution Transformers?
Superior Energy Efficiency
You'll promptly take note the distinction in your vitality bills. Our transformers diminish no-load misfortunes by roughly 30% compared to more seasoned S11 models. This implies noteworthy fetched reserve funds, particularly if you work in regions requiring ceaseless control supply.
The speculation pays for itself rapidly. Most clients recoup the fetched contrast inside 1-3 a long time through diminished power utilization alone.
Maintenance-Free Operation
Say farewell to schedule support cerebral pains. The completely fixed layered oil tank plan totally separates transformer oil from air dampness and oxygen. This avoids oil debasement and disposes of the require for occasional center lifting or oil replacement.
You spare time and cash. No planned support implies lower operational costs and less benefit interferences over the transformer's 20-30 year lifespan.
Quiet Execution for Urban Environments
Your neighbors will thank you. Progressed development methods counting high-permeability silicon steel sheets with completely diagonal joints create clamor levels 3-5 dB lower than S11 transformers.
This makes our item idealize for private ranges, healing centers, schools, and commercial complexes where clamor contamination things.
Technical Specifications
| Parameter | Specification |
|---|---|
| Voltage Level | 6kV, 12kV |
| Rated Voltage | 10±2×2.5%/0.4kV |
| Capacity Range | 30-3150kVA |
| Frequency | 50Hz, 60Hz |
| Phases | Single-phase, Three-phase |
| Connection Group | Yyno or Dyn11 |
| Voltage Regulation | Non-excitation, ±5%, ±2×2.5% |
| Cooling Method | ONAN (Oil-immersed self-cooling) |
| Insulation Level | Power frequency: AC-35kV; Impulse: L1-75kV |
| Core Material | 0.23mm high-permeability cold-rolled grain-oriented silicon steel |
| Winding Material | High-purity oxygen-free copper |
| Tank Design | Fully sealed corrugated structure |
| Compliance Standards | GB 1094, GB/T 6451, GB 20052-2020 |
Key Advantages That Benefit You
Enhanced Grid Stability
Moo no-load current implies less voltage change in your conveyance arrange. You'll encounter more steady control quality, which secures delicate hardware like observing frameworks, exactness disobedient, and Driven lighting.
Superior Short-Circuit Resistance
The compact winding structure with solid mechanical bolster withstands blame conditions way better than more seasoned models. This decreases disappointment rates and minimizes expensive downtime amid lattice disturbances.
Easy Retrofitting
Planning to overhaul existing framework? Our transformers share comparable measurements with S11 models, permitting coordinate substitution without altering establishments or cabinets. This disentangles redesign ventures and decreases establishment costs.
Flexible Customization
Every venture has interesting necessities. We offer customized arrangements custom fitted to your particular voltage, capacity, and natural conditions. Generation cycles extend from 6-30 days depending on details.
Ideal Applications
Our S13 type fully sealed distribution transformer excels in these scenarios:
- Urban residential communities requiring quiet operation
- Commercial complexes with high power quality demands
- Industrial parks needing reliable 24-hour power supply
- Box-type substations and ring main unit installations
- Rural electrification projects with maintenance-free requirements
- Base stations and telecommunications facilities
- Street lighting networks with long light-load periods
Quality You Can Trust
Lijie Electric works two major fabricating bases covering 500,000 square meters in Xuzhou and Nantong. With over 2,000 workers and yearly deals surpassing 5 billion RMB, we're recognized as a National High-Tech Undertaking and "Specialized, Refined, and Modern 'Little Giant'" company.
Our transformers carry comprehensive certifications counting ISO 9001:2015, CE, UL, and IEC. All items experience thorough testing by the National Transformer Quality Supervision and Review Center and meet GB/T 27922-2021 after-sales assessment benchmarks.
Comprehensive Support Services
When you choose Lijie Electric, you receive:
- Complete technical documentation (drawings, manuals, test reports)
- Installation guidance and commissioning support
- Spare parts supply throughout product lifecycle
- Responsive after-sales technical assistance
- Capacity assurance with visualized production tracking
Frequently Asked Questions
Q: How much energy can I save with S13 transformers compared to older models?
A: You'll reduce no-load losses by approximately 30% compared to S11 transformers. For a 500kVA unit operating year-round, this typically translates to several thousand dollars in annual electricity savings, allowing cost recovery within 1-3 years.
Q: Do these transformers require regular maintenance?
A: No. The fully sealed corrugated tank design eliminates contact with air and moisture, preventing oil aging. You won't need periodic oil changes or core lifting throughout the 20-30 year lifespan.
Q: Can I replace my existing S11 transformer with an S13 model?
A: Yes. Our S13 transformers maintain similar external dimensions and installation mounting points as S11 models, enabling direct replacement without foundation modifications.
Q: What voltage regulation options are available?
A: We offer non-excitation voltage regulation with tap ranges of ±5% or ±2×2.5%, providing five adjustment levels to optimize voltage supply for your specific distribution network.
Q: Are these transformers suitable for residential areas?
A: Absolutely. With noise levels 3-5 dB lower than S11 models and fully sealed construction preventing oil leaks, our product is ideal for densely populated areas, apartment complexes, and noise-sensitive locations.
Q: What certifications do your transformers hold?
A: Our products meet GB 20052-2020 energy efficiency standards and carry ISO 9001:2015, CE, UL, and IEC certifications. All units undergo testing by national inspection authorities before shipment.
Q: How long does custom production take?
A: Standard models ship within 6-15 days. Custom specifications typically require 15-30 days depending on complexity and current production schedule.
Contact Us
Ready to upgrade your power distribution system with S13 type fully sealed distribution transformer? Reach out to our team at lijieelectrical@gmail.com for technical consultation and customized solutions.
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