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3 Phase 250kVA Air Cooled Transformer Dry Type Isolation Transformer High Reliability

3 Phase 250kVA Air Cooled Transformer Dry Type Isolation Transformer High Reliability
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3 Phase 250kVA Air Cooled Transformer Dry Type Isolation Transformer High Reliability

3 Phase 250kVA Air Cooled Transformer Dry Type Isolation Transformer High Reliability
Product Specifications
AttributeValue
TypeDistribution transformer
MaterialSilicon steel sheet, Aluminum
Frequency50Hz, 60Hz
ShapeRectangle
Winding MaterialAluminum
ApplicationPotential
PhaseThree
Coil StructureTOROIDAL
Coil NumberMulti-winding coil
Input Voltage10kV
Output Voltage0.4kV
Rated capacity30KVA-2500KVA
Cooling MethodANAF
Core materialCRGO Silicon Steel Core
Rated voltage6/6.3/10/10.5/11KV
Vector GroupDyn11/Yyn0
Working frequency50/60KHz
Operating temperature40°C To +180°C
Product Overview
The SCB13 Series 250kVA dry-type isolation transformer is a robust and energy-efficient solution for powering critical loads. Designed with a high-grade silicon steel core and vacuum epoxy resin casting, it ensures safe, quiet, and stable power delivery in commercial, medical, and industrial environments. It offers enhanced insulation, low maintenance, and high short-circuit strength.
Technical Specifications
Rated capacity (KVA)Vector GroupVoltage CombinationNo-load lossLoad lossNo-load currentImpedance
30Yyn0 / Dyn1110 6.3 613564024.0
501959002
8026512401.5
10029014101.5
12534016601.3
16038519101.3
20044522701.1
25051524801.1
31563531201
40070535901
50083543901
63096552900.856.0
800109062600.85
1000127073100.85
1250150087200.85
16001760105000.85
20002190130000.7
25002590154000.7
Key Features
  • Full Electrical Isolation: Prevents interference between primary and secondary circuits
  • Vacuum Epoxy Resin Casting: Provides strong insulation, flame retardancy, and moisture resistance
  • Low Noise Design: Operating noise ≤ 50dB, perfect for indoor applications
  • Oil-Free Construction: Eco-friendly and safe for enclosed spaces
  • High-Grade Core Material: Made with low-loss cold-rolled silicon steel
Benefits
  • Protects Sensitive Equipment: Filters voltage disturbances and suppresses harmonics
  • Reduces Maintenance Needs: No oil replacement, fewer failures
  • Safe for Indoor Use: No risk of oil leakage or fire hazard
  • Improves System Reliability: Enhances power quality and stability
  • Easy Installation: Compact and accessible terminal design
Advantages
  • High Short-Circuit Strength: Withstands dynamic and thermal stress during faults
  • Customizable Voltage Options: Supports various input/output configurations
  • IEC & CE Certified: Built to meet global safety and efficiency standards
  • Long Service Life: Durable insulation system ensures 20+ years of operation
  • Adaptable for Harsh Environments: Optional IP23 protection grade
Application Scenarios
  • Precision machine tool power supply
  • Industrial automation control systems
  • Hospitals & medical equipment
  • Laboratories and research centers
  • High-rise building distribution panels
  • CNC equipment, elevators, and smart control systems
About HENTG POWER
HENTG POWER is a professional designer, manufacturer and installer of power system solutions worldwide. Founded in 2011 with a 100,000 square meter facility, we specialize in reliable, high-performance solutions for global power systems.
Quality Assurance
We conduct pre-production samples before mass production and final inspection before shipment, providing QC & test reports. We accept Factory Acceptance Tests (FAT). Our factory manufactures oil type and dry type distribution transformers up to 500KV 480MVA power transformers, GIS, switchgear, and substations, based on ANSI/IEEE/DOE2016/CSA/IEC60076 standards, with a 2+ year guarantee service.
Why Choose Us?
Our professional drawing and technical teams can confirm all drawing contents within 7 days. With 30+ senior engineers offering 24/7 online support and 30-minute response times, we ensure exceptional service.
Services
We accept OEM orders and negotiate business payment terms to meet your specific requirements.
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