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Dry-Type Transformers
Special Voltage Dry-Type
SKU: 100_KVA_11KV_480V_THREE_PHASE_DRY_DISTRIBUTION_TRANSFORMER
100 kVA 11kV/480V Three-Phase Dry Distribution Transformer
This 100 kva /480v three-phase dry distribution transformer is designed for indoor power distribution where safety, low maintenance, and practical insulation performance are important. It provides dependable service for commercial, industrial, infrastructure, or special-application installations and can be customized according to voltage, enclosure, cooling, and monitoring requirements.
Compliance Standards
IEC • ANSI • IEEE • GB
Quality Inspection
100% FAT Routine Tested
Engineering CAD
2D CAD / SLD Schematics
Global Logistics
Direct Seaport CIF Export
Engineering Datasheet
Technical Parameters & Ratings
| Model Series | SCB10 / SCB11 / SCB13 / SCB14 |
|---|---|
| Rated Capacity | 100 kVA |
| Primary Voltage (U1) | 10,000 V (10 kV / 11 kV) |
| Secondary Voltage (U2) | 400 V / 415 V / 480 V (3-Phase 4-Wire) |
| Vector Group | Dyn11 |
| Rated Frequency | 50 Hz / 60 Hz |
| Cooling Method | AN (Natural Air) / AF (Forced Air Blower) |
| Primary Current (I1) | 5.77 A |
| Secondary Current (I2) | 139.1 A |
| Guaranteed No-Load Loss (P0) | 400 W |
| Guaranteed Load Loss (Pk at 120°C) | 1570 W |
| Short-Circuit Impedance (Uk) | 4.0% |
| Insulation Class | F Class (155°C) / H Class (180°C) Epoxy Cast Resin |
| Temperature Rise Limit | Winding Temp Rise ≤ 100 K (F Class) / ≤ 125 K (H Class) |
| IP Protection Class | IP00 (Open Type) / IP20 (Indoor Enclosure) / IP23 (Loubered) |
| Total Weight | 750 kg |
| Overall Footprint (L×W×H) | 900 mm × 650 mm × 950 mm |
| Governing Standards | IEC 60076-11, GB/T 10228-2015, CE, ISO 9001 |
Technical Highlights
- This product offers the advantages of indoor safety, low maintenance, and practical installation flexibility. It supports projects that need reliable electrical performance, oil-free operation, and configurable insulation, enclosure, monitoring, or cooling features for modern indoor distribution systems.
Application Scenarios
- Commercial buildings and office complexes
- Hospitals, schools, and public facilities
- Industrial workshops and manufacturing plants
- Data centers and mission-critical electrical rooms
- Indoor infrastructure and utility support projects
Key Features
- 100 kVA rated capacity for safe indoor distribution and equipment supply
- Dry-type insulation system suitable for indoor, low-maintenance installations
- Three-phase construction for commercial, industrial, infrastructure, or special applications
- Available with customized voltage ratio, enclosure, monitoring, and cooling options
- Supports project-based IEC specifications and export-oriented documentation
- Designed for dependable service where oil-free installation is preferred
Optional Configurations
- High-voltage and low-voltage rating
- Enclosure level: IP00 / IP20 / IP23 / customized
- Temperature controller and smart monitoring options
- Cooling mode: AN / AF and fan arrangement
- Winding material and insulation class
- Project-specific standards and test document requirements
- Color, nameplate language, and document package
- Ambient temperature, altitude, and installation condition adaptation
Engineering Submittal Drawing
2D AutoCAD General Arrangement (GA) Drawing & Footprint
Official XinHuan factory 2D vector General Arrangement drawing for 100 kVA 11kV/480V Three-Phase Dry Distribution Transformer. Includes front elevation view, top plan view, terminal centerline clearances, base channel mounting footprint, and complete vector group connection schematics.
Dimensions ($L \times W \times H$ mm)
Terminal Centerline Clearances
Base Channel Mounting Pitch
Vector Group & Rating Plate
XinHuan Hefei Manufacturing Plant — Precision Winding & Assembly Line
Factory Build Quality
Internal Construction & Premium Materials
Built with tier-1 certified raw materials engineered for long operational life (>30 years), superior dielectric withstand, and high short-circuit withstand capacity.
Silicon Steel Core
High-grade grain-oriented cold-rolled silicon steel with step-lap mitered joints for low $P_o$ losses.
100% Copper Windings
Electrolytic oxygen-free copper with high thermal grade insulation for surge resistance.
Precision Tap Changer
De-energized tap switch ($\pm 2 \times 2.5\%$) or on-load vacuum tap changer (OLTC) optional.
Protection & Sensors
Buchholz gas relay, magnetic oil gauge (MOG), and dial thermometers with alarm contacts.
Quality Assurance
CNAS & ISO 9001 Certified
100% Factory Acceptance Testing (FAT) Protocol
Every transformer unit manufactured by XinHuan undergoes mandatory routine factory testing prior to container dispatch. Full certified routine and type test submittal reports are provided with commercial documentation:
1. Insulation Resistance
Megger test (HV to LV, HV to Earth, LV to Earth) >1000 MΩ.
2. Voltage Ratio & Vector
Turns ratio check across all taps with phase displacement check.
3. Winding DC Resistance
Precision Kelvin bridge measurement across all tap positions.
4. Short-Circuit Impedance
Load loss ($P_k$) measurement corrected to reference temp (75°C).
5. No-Load Loss & Current
Core excitation test ($P_o$ and $I_o$) at rated sinusoidal voltage.
6. AC Voltage Withstand
Power-frequency separate source test (e.g. 50kV/70kV 1 min).
7. Lightning Impulse (BIL)
Full wave & chopped wave impulse withstand (BIL up to 170kV).
8. Partial Discharge & Seals
Ultra-low discharge (<5 pC) and pressurized oil/gas tightness test.
Logistics Intelligence
Global CIF / FOB Delivery
Export Packaging & Seaport Logistics
The product is prepared for export shipment with suitable packing and transport arrangements based on destination and handling requirements. Technical documents, test reports, nameplate confirmation, and pre-shipment support can be supplied according to order requirements. OEM/ODM support and project-based coordination are available for qualified inquiries.
Production Lead Time
Standard manufacturing cycle is 4 to 6 weeks from approval of GA blueprints and single-line diagrams.
Heavy-Duty Export Packaging
Vacuum moisture barrier preservation, nitrogen blanketing, and reinforced steel-frame structural crate skids.
Direct Seaport Routes
Fast ocean freight to Port of Chancay & Callao (25-35 days), Manila, Lagos, and Middle East ports.
Equipment Video Inspection
100% TestedWatch XinHuan technicians perform routine dielectric testing, winding insulation checks, and quality inspections inside our Hefei manufacturing plant.
Every unit 100% routine tested before container loading.
Direct Factory Consultation
Need Custom Project Engineering?
Send your single-line diagram (SLD), voltage ratings, or tender specifications. Our chief electrical engineers will review and issue an actionable CIF quotation within 24 hours.
Custom Voltage Ratios
High-Altitude Derating
Short-Circuit Impedance
Third-Party FAT Witness
Engineering & Procurement FAQs
Frequently asked questions regarding specifications, certifications, and delivery for 100 kVA 11kV/480V Three-Phase Dry Distribution Transformer.
Please send us your required capacity, high voltage, low voltage, frequency, cooling preference, and installation conditions for the 100 kva /480v three-phase dry distribution transformer. Our team can recommend a suitable configuration and provide a quotation based on your project requirements.
The product can be produced according to IEC standards and customer technical specifications. Routine factory tests, inspection records, and technical documentation can be provided before shipment. Optional configurations for project-specific grid, environmental, and accessory requirements are available upon request.
Standard manufacturing lead time is 4 to 6 weeks following approval of GA blueprints and single-line diagrams. Direct sea container shipping is available under FOB, CFR, or CIF terms with full customs documentation (Bill of Lading, Certificate of Origin, Test Reports).