Small Fireproof Professional Power Transformer High Safety Compact Design
Kechang's small, fireproof, professional dry-type transformer combines a compact size, exceptional fire safety, and professional-grade performance. Its oil-free design and advanced insulation technology eliminate the risks of fire and explosion at their source, making it the secure choice for hospitals, laboratories, crowded public spaces, and any facility with stringent safety requirements.
Key Advantages
Professional Fire Safety
As a dry-type transformer, it uses no flammable insulating oil. The windings, treated with Vacuum Pressure Impregnation (VPI) and using Class F/H or higher high-temperature insulation materials, are self-extinguishing and comply with stringent international fire safety standards.
Compact & Space-Saving
An optimized magnetic and mechanical design results in a smaller footprint for its power rating. It can be installed directly near the load center, reducing cable costs, and is ideal for space-constrained modern buildings and renovation projects.
Robust & Environmentally Friendly
The fully enclosed structure (up to IP54 protection rating) effectively resists dust, moisture, and corrosive gases, ensuring stable operation in harsh environments. The oil-free design also prevents potential soil and water contamination.
Easy Maintenance & Cost-Effective Operation
It requires no regular oil monitoring or leak management like oil-immersed transformers, significantly reducing routine maintenance workload and cost, enabling maintenance-free or low-maintenance operation.
Technical Specifications
| Technical Specifications | Basic Parameters |
| Rated capacity | 30 kVA ~ 2500 kVA |
| Rated voltage | 6 kV, 10 kV, 20 kV, 35 kV |
| Rated frequency | 50 Hz |
| Fire safety features | Fire Safety Characteristics |
| Insulation system | Class F (155°C) or Class H (180°C) |
| Process standards | Compliant with GB/T 10228-2023 and IEC 60076-1 |
| Protection level | IP00, IP20, IP23, IP54 (optional) |
| No-load loss | Meet or exceed the requirements of GB/T 10228-2023 |
| Load loss | Meet or exceed the requirements of GB/T 10228-2023 |
| Noise level | < 60 dB (typical value, measured at 1 meter) |
Typical Applications
Commercial & Public Buildings: Shopping malls, airports, railway stations, schools, and office buildings with high fire safety requirements.
Healthcare & Research: Hospitals, bio-labs, pharmaceutical production facilities where power equipment must not pose any safety risks.
Industry & Infrastructure: Chemical plants, mining, and infrastructures like tunnels and subways where firefighting is challenging.
Our Professional Design & Quality Assurance
Professional Fireproof Design: The concept of fire safety is integrated into every step, from material selection to production. We use high-temperature resistant, flame-retardant insulating materials and the VPI process to create a solid winding structure that effectively isolates air and moisture, suppressing fire hazards.
Stringent Quality Control: Every transformer undergoes a series of rigorous tests before shipment, including but not limited to Turns Ratio Test, Insulation Resistance Test, Power Frequency Withstand Voltage Test, and Partial Discharge Test, ensuring 100% compliance with design specifications and safety standards.
Company production enviroment
Our factory & quipment
Our transformer production combines automation equipment with the exquisite craftsmanship of experienced technicians, from winding, assembly to insulation treatment, each process is strictly controlled by an experienced technical team.The workshop environment has constant temperature and humidity, in line with ISO 9001 international quality management standards, to ensure that the product performance is stable, safe and durable. Transparent and visualized production processes. We are committed to using technology to improve efficiency and provide customers with zero-defect industrial power solutions.
Products Export
Foreign exhibition
International Exhibition Validates Strength
As a reputable enterprise in China's power equipment manufacturing sector, Kechang Electric showcased its core product portfolio and technical solutions at the 2024 Tashkent International Energy Exhibition in Uzbekistan, reinforcing our presence in Central Asian markets.
Exhibition Highlights
• Professional Recognition: Engaged in technical exchanges with over 80 professionals from Central Asian power utilities and industrial clients
• Scenario Verification: Demonstrated product adaptability in extreme temperature conditions through live equipment presentations
• Service Commitment: Established technical communication channels with local partners during the event
Client Testimonial
"Kechang Electric's climate-specific protection designs and service framework impressed us during in-depth discussions at the exhibition."
- Procurement Manager, Industrial Zone, Uzbekistan
Our Advantages
✓ Global Expertise: Products deployed across 6 Central Asian countries, serving 50+ projects
✓ Rapid Support: Bilingual technical assistance (English/Russian) with solutions delivered within 48 hours
✓ Quality Assurance: All equipment undergoes rigorous cyclic testing at -30℃ to 50℃
International Clients Inspecting Our Facilities
Uzbekistan customers visit the factory of transformer
Nepalese Clients Participate in Power Control Equipment Testing
Pakistani Clients Tour Our Product Showroom
How we started
2006-2010
2006-2010 Foundation Period | Embracing International Standards
Strategic Positioning: Strategic manufacturing partner for Fortune 500 power industry giants
Key Milestones:
✔️ Delivered 1,200+ sets of complete power equipment as OEM supplier for listed companies
✔️ Established 217 process standards aligned with client specifications
✔️ Achieved ISO 9001 certification with 0.12% defect rate (industry avg: 0.35%)
2010-2012
2010-2012 Transformation Era | Pioneering Independent Branding
Strategic Shift: Transition from OEM manufacturing to branded operations
Key Achievements:
✔️ Obtained National Industrial Product License
✔️ First-year branded product sales: ￥38M with 43% repeat order rate
✔️ Industry-first lifecycle tracking system enabling 30-year data traceability
Technical Milestones:
► S11-M oil-immersed transformer certified Class 1 energy efficiency (GB 24790)
► Sheet metal precision improved from ±2mm to ±0.8mm
2012-2018
2012-2018 Expansion Era | Building Industry Ecosystems
Strategic Focus:
Capacity Expansion × Technical Depth × Global Integration
|
Dimension |
Achievements |
|
Capacity |
Built 43,000 sq.m digital factory (170% capacity increase) |
|
Technology |
7 invention patents + 12 utility model patents (2 national standards drafted) |
|
Partnership |
Key supplier to ABB/Schneider APAC (service network: 29 provinces) |
2018-Present
2018-Present | Innovating an Era: Interpreting China's Smart Manufacturing
Industry 4.0 Smart Factory:Achieved 92% automation in key processes.
Hi-B Steel Adoption: Fully integrated high-permeability grain-oriented silicon steel.
Global Certification & Reach: KEMA-certified products entering 18 markets across the EU, Southeast Asia, and beyond.
FAQ
Q: Does it meet EU environmental requirements for export?
A: The transformer complies with CE/LVD certification (EN 60076-11) and RoHS environmental certification, containing no heavy metals or harmful volatile substances. Utilizing Class H insulation (180°C thermal rating) and Vacuum Pressure Impregnation (VPI) technology, it fully meets EU market access standards.
Q: Are maintenance costs high?
A: Featuring a modular quick-disassembly design, replacing wear-prone components like fans and temperature controllers takes <30 minutes (tools required: standard hex keys). Statistics from a Guangdong industrial park show annual maintenance costs of only ¥420 per unit (including labor and consumables) – 65% lower than traditional oil-immersed transformers. With a 25-year lifespan, it includes a four-color LED status indicator and three-digit fault codes for rapid diagnostics.
Q: Does it require special protection in humid/rainy regions (e.g., southern coastal areas)?
A: The standard IP55-rated enclosure resists dust and water jets (flow rate: 12.5L/min). An integrated intelligent anti-condensation system automatically activates PTC heating (500W) when internal humidity exceeds 75%, maintaining insulation resistance >5000MΩ. Field-tested in a Hainan fishing village solar plant, it exhibited zero corrosion or insulation degradation after 18 months of continuous monsoon operation.
Q: Is this 80kVA transformer suitable for small commercial facilities (e.g., convenience stores, cafes)?
A: Yes. Optimized for small-scale commercial use, its compact 0.36m³ volume (900×450×900mm) supports wall-mounted or corner installations (minimum side/top clearances: 150mm/300mm). With a no-load loss of 0.6kW (28% below the GB 20052 limit of 0.98kW), it achieves annual electricity savings of ¥11,000–15,000 (based on ¥0.8/kWh and 6,000 operating hours/year). Deployed in a 24-hour convenience store in Shanghai, each unit saved 1.2m² of substation space, ideal for retrofitting older shops.
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