Oil Immersed Type Power Distribution Transformer Outdoor 250KVA 315KVA Three Phase

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Location: Changsha Hunan China
Address: Room905, D6 building, CCSP Industrial Park, Yuelu District, Changsha,Hunan province, China
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Product Details Company Profile
Product Details
Oil Immersed Type Power Distribution Transformer Outdoor 250KVA 315KVA Three Phase
Product Specifications
AttributeValue
Frequency50Hz, 60Hz
PhaseThree
Coil NumberTwo Windings, Multi Winding, Three Windings, Single Winding
Applicationpower transformer
Coil StructureShell-Type Coil, layer coil, fully sealed construction, Disc Coil, round coil
Output Voltage220V, 380V
Input Voltage11kV, 10.5kV, 3kV, 12.47kV, 6.6kV
TypeOil-Immersed Transformer, AUTOTRANSFORMER, Oil Filled Type
Winding Material100% Copper/Aluminum
Cooling MethodONAN ONAF
CustomizedAccept
Capacity250KVA 315KVA
Vector GroupDyn11 / Yyn0
UsagePower Transformer
Efficiency≥98%
Rating Capacity30-1600KVA
InstallationIndoor/Outdoor
ApplicationPower transmission
Poles3
Second Voltage0.4kv
Number Of PhasesThree Phases
Transformer TypeS11 Oil-immersed Transformer
Rated Voltage6kV-500kV
Installation MethodOutdoor/Indoor
Noise Level≤65dB
Product Overview

HENTG POWER Three Phase Outdoor 250KVA 315KVA Oil Tester Step Down Power Distribution Transformer

Our oil-immersed distribution transformers range from 30kVA to 2500kVA, with voltage levels up to 35kV. They are widely used in power utilities, renewable energy, industrial facilities, railway systems, and urban infrastructure. Designed to IEC and ANSI standards, our transformers offer high efficiency, low losses, and long service life, suitable for both indoor and outdoor environments.

Key Features
  • Higher Energy Efficiency: Lower no-load and load losses through optimized magnetic circuit and winding designs
  • Improved Temperature Rise Performance: Enhanced oil circulation and cooling systems for stable operation
  • Reduced Noise Levels: High-permeability silicon steel and precision manufacturing for quieter operation
  • Robust Mechanical Design: Optimized winding structure for improved short-circuit resistance
  • Longer Service Life: High-quality materials and construction for 20-30 years of reliable service
Technical Parameters
Rated capacity (KVA)Vector GroupVoltage CombinationNo-load lossLoad lossNo-load currentImpedance
30Yyn0 / Dyn1110 6.3 6 ±5% ±2X2.5% 0.4806301.54.0
501009101.3
6311010901.2
8013013101.2
10015015801.1
12517018901.1
16020023101.0
20024027301.0
25029032000.9
31534038300.9
40041045200.8
50048054100.8
63057062000.64.5
80070075000.6
1000830103000.6
1250970120000.5
16001170145000.5
20001360183000.45.0
25001600212000.4
Ordering Process

Step 1: We respond within 1 hour with suitable transformer recommendations, reasonable quotations, and payment terms. Our technical team confirms all drawing details within 7 days after payment.

Step 2: After design approval, we prepare materials, manufacture, and conduct quality inspections. We provide QC and test reports for all products.

Step 3: We offer professional installation guidance or on-site support, plus a 2-year warranty service.

Why Choose HENTG Power?
Own Factory, Direct Manufacturer
24h Quick Quotation
Customization Available
Over 60 Countries Exported
Engineering Support Available
Company Profile

HENTG Power is an ISO9001 certified transformer manufacturer specializing in reliable, high-performance solutions for global power systems since 2011.

With a 100,000 m² factory, over 250 skilled workers, more than 30 senior engineers, and 10+ professional testing engineers, we deliver high-quality transformer solutions with strong production capacity of 20,000 units/year.

Application Scenarios
  • Power Distribution Networks
  • Renewable Energy Systems
  • Industrial Facilities
  • Railway Systems
  • Urban Infrastructure
China Oil Immersed Type Power Distribution Transformer Outdoor 250KVA 315KVA Three Phase supplier

Oil Immersed Type Power Distribution Transformer Outdoor 250KVA 315KVA Three Phase

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