Non-encapsulated windings
Open dry-core construction supports heat dissipation without casting-resin cracking risks.
Product image from the supplied product image library.
DRY-TYPE TRANSFORMER
SGB13 Non-Encapsulated Dry-Type Transformer
Oil-free, energy-saving indoor distribution equipment for urban substations, rail transit, commercial complexes and high-rise buildings.
30–2500 kVA10 / 6.3 / 6 kV HV0.4 kV LVH-class insulation
PRODUCT OVERVIEW
Dry-type safety for dense indoor power distribution
The SGB13 uses a non-encapsulated dry-insulation structure with H-class windings. Its oil-free design removes leakage pollution and reduces fire-protection requirements, while the low-loss core supports efficient, stable operation in demanding indoor environments.
The supplied record positions the series for core-city substations, rail-transit power supply, commercial complexes, hospitals, schools, industrial parks and other confined spaces where maintenance simplicity and environmental performance matter.
ENGINEERED FOR INDOOR SAFETY
Performance built around the room, load and maintenance route
Grade 1 efficiency route
Low-loss core and winding design is positioned for national energy-efficiency requirements.
Oil-free fire safety
No oil tank, leakage risk or dedicated oil-fire facility is required for the indoor route.
Smart-ready monitoring
Online temperature monitoring and remote fault-alarm interfaces can support intelligent upgrades.
Environmental adaptability
Anti-condensation and anti-corrosion measures support humidity, dust and high-altitude conditions.
Maintenance-free cycle
Oil replacement, filtering and oil-quality testing are removed from routine maintenance.
TECHNICAL PARAMETERS
Configuration range from the supplied record
Final loss values and accessories are confirmed against the selected capacity, voltage and project standard.
| Parameter | Supplied range / option |
|---|---|
| Rated capacity | 30, 50, 80, 100, 125, 160, 200, 250, 315, 400, 500, 630, 800, 1000, 1250, 1600, 2000 and 2500 kVA |
| HV voltage | 10 / 6.3 / 6 kV |
| LV voltage | 0.4 kV |
| Vector group | Yyn0 or Dyn11 |
| Tap range | ±5% or ±2 × 2.5% |
| Insulation | H-class, non-encapsulated dry type |
| Short-circuit impedance | 4% for lower capacities; 6% for selected larger capacities in the supplied table |
APPLICATIONS
Built for protected indoor distribution rooms.
Use the SGB13 route when oil-free fire safety, compact installation and reduced routine maintenance are important to the project.
Urban substationsCompact, low-noise equipment for core-city distribution rooms.
Rail transitIndoor auxiliary power distribution with monitoring-ready options.
Commercial buildingsOil-free operation for high-rise, retail and mixed-use facilities.
Industrial parksStable dry-type conversion for indoor production and utility loads.
SELECTION SUPPORT
Confirm the right dry-type configuration before quotation.
FAQ
Questions buyers usually confirm first
What is the main benefit versus an oil-immersed unit?
The oil-free design provides fire-safe indoor installation, no leakage pollution and a simpler maintenance route.
Can the transformer be customized?
Yes. Capacity, protection grade, cooling, vector group and monitoring interfaces are confirmed against the project.
What is the typical lead time?
The supplied record describes 15–20 days for standard models and 25–35 days for custom specifications, subject to contract confirmation.
What documents are supplied?
Factory test records, technical drawings and agreed compliance documents are prepared for the approved configuration.
PRODUCT ENQUIRY
Need an oil-free transformer route?
Share capacity, voltage, room conditions, quantity and destination country.
SGB13 DRY-TYPE TRANSFORMER
Request technical details.
Use the inquiry form for drawings, test records and a project-specific quotation.