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R-Class 220℃ Insulation 2500Kva Dry Type VPI Transformer 6900V To 480V Vacuum Pressure Impregnated Transformer
R-Class 220℃ Insulation 2500Kva Dry Type VPI Transformer 6900V To 480V Vacuum Pressure Impregnated Transformer
R-Class 220℃ Insulation 2500Kva Dry Type VPI Transformer 6900V To 480V Vacuum Pressure Impregnated Transformer
R-Class 220℃ Insulation 2500Kva Dry Type VPI Transformer 6900V To 480V Vacuum Pressure Impregnated Transformer
R-Class 220℃ Insulation 2500Kva Dry Type VPI Transformer 6900V To 480V Vacuum Pressure Impregnated Transformer
R-Class 220℃ Insulation 2500Kva Dry Type VPI Transformer 6900V To 480V Vacuum Pressure Impregnated Transformer
R-Class 220℃ Insulation 2500Kva Dry Type VPI Transformer 6900V To 480V Vacuum Pressure Impregnated Transformer
R-Class 220℃ Insulation 2500Kva Dry Type VPI Transformer 6900V To 480V Vacuum Pressure Impregnated Transformer
R-Class 220℃ Insulation 2500Kva Dry Type VPI Transformer 6900V To 480V Vacuum Pressure Impregnated Transformer
R-Class 220℃ Insulation 2500Kva Dry Type VPI Transformer 6900V To 480V Vacuum Pressure Impregnated Transformer
R-Class 220℃ Insulation 2500Kva Dry Type VPI Transformer 6900V To 480V Vacuum Pressure Impregnated Transformer
R-Class 220℃ Insulation 2500Kva Dry Type VPI Transformer 6900V To 480V Vacuum Pressure Impregnated Transformer
R-Class 220℃ Insulation 2500Kva Dry Type VPI Transformer 6900V To 480V Vacuum Pressure Impregnated Transformer
R-Class 220℃ Insulation 2500Kva Dry Type VPI Transformer 6900V To 480V Vacuum Pressure Impregnated Transformer
Specifications
Brand Name :
WINLEY
Model Number :
SG-2500KVA/6.9
Certification :
ISO,CE,UL/cUL
Place of Origin :
CHINA
MOQ :
1unit
Price :
$500~$60000/Unit
Payment Terms :
T/T
Supply Ability :
1000units/month
Delivery Time :
10-15days
Packaging Details :
Plywood case
Type :
Dry Type VPI Transformer
Insulation Class :
Class R 220℃
Capacity :
2500KVA
Primary Voltage :
6900V
Secondary Voltage :
480Y/277
Enclosure Rating :
NEMA 3R Weatherproof
Cooling :
AN/AF
Efficiency Standard(s) :
DOE 2016, IEEE, ANSI
Description

R-Class 220℃ Insulation VPI Transformer Dry Type High-Temperature Resistant Vacuum Pressure Impregnated Transformer

WINLEY Electric’s vacuum-impregnated dry-type transformers with R-class insulation feature the NOMEX insulation system. Endowed with high heat resistance and strong overload capability, this system ensures superior performance and safety for the transformers even in prolonged high-temperature conditions.

Product factory photos

R-Class 220℃ Insulation 2500Kva Dry Type VPI Transformer 6900V To 480V Vacuum Pressure Impregnated Transformer

R-Class 220℃ Insulation 2500Kva Dry Type VPI Transformer 6900V To 480V Vacuum Pressure Impregnated Transformer

R-Class 220℃ Insulation 2500Kva Dry Type VPI Transformer 6900V To 480V Vacuum Pressure Impregnated Transformer

R-Class 220℃ Insulation 2500Kva Dry Type VPI Transformer 6900V To 480V Vacuum Pressure Impregnated Transformer R-Class 220℃ Insulation 2500Kva Dry Type VPI Transformer 6900V To 480V Vacuum Pressure Impregnated Transformer

Insulation class classification

As per NEMA class of insulation for transformer is based on the max. An R-Class insulation transformer uses very high-temperature resistant materials, allowing its windings to reach a maximum hot-spot temperature of 220°C.

Insulation Class Maximum allowable
temperature rise (°C)		 environmental
temperature (°C)		 Maximum
Temperature (°C)		 Common Insulation Materials
Class A 50 40 105 Cotton, Paper, Silk, Wood
Class B 80 40 130 Mica, Fiberglass, Asbestos, etc., with suitable bonding substances
Class F 105 40 155 plus materials like synthetic enamelsB
Class H 125 40 180 Silicone elastomers, Mica, Fiberglass with high-temperature bonding substances
Class R 150 40 220 Very high-temperature resistant materials, often proprietary

Performance Characteristic

  1. High Reliability: Engineered for continuous duty with minimal maintenance.
  2. Thermal Stability: Class-R insulation provides superior heat resistance.
  3. Eco-Friendly Design: Dry-type construction, low environmental impact.
  4. Customizable: Available in a wide range of configurations and voltage classes.
  5. Safety: Fire-retardant insulation, reduced risk of fire hazards.
  6. Low Noise Operation: Designed for quiet performance in sensitive environments.
  7. Excellent Mechanical Strength: Enhanced short-circuit resilience via the VPI process.
  8. Core Material: Made from low-loss iron for superior magnetic performance.

Technical drawings

R-Class 220℃ Insulation 2500Kva Dry Type VPI Transformer 6900V To 480V Vacuum Pressure Impregnated Transformer

Application Areas:

  • Data Centers
  • Industrial automation and processing units
  • Renewable energy systems (solar/wind interconnection)
  • Power distribution in utilities,
  • Hospitals
  • Commercial buildings
  • Marine and mining sectors
  • Educational and research institutions
  • Infrastructure
  • UPS
  • Invertors
  • Telecom
  • Solar Inverters
  • Laboratories
  • Health Care

Specification

Model
(kva)		 Primary Voltage Secondary Voltage Coupling group tab Shape dimension Mounting dimension K*J The box dimension
Bmax Dmax±5 Emax A C±5 Bmax Dmax±5 Emax
SG-10KVA 660
400
380
200		 380
220
110
36		 Yyn0
Y/d
D/y
D/d		 360 180 305 215 140 10*20 450 360 480
SG-15KVA 360 200 335 215 155 10*20 450 360 480
SG-20KVA 420 210 350 250 170 10*20 490 400 540
SG-30KVA 420 230 380 250 190 10*20 490 400 540
SG-50KVA 680 350 550 420 220 10*20 800 510 840
SG-80KVA 750 400 620 480 250 10*20 850 510 840
SG-100KVA 780 420 650 500 250 10*20 900 550 890
SG-300KVA 180 95 185 100 75 6*14
SG-500KVA 180 95 185 100 75 6*14
SG-1000KVA 180 110 185 100 90 6*14
SG-2000KVA 230 125 205 130 100 9*16
SG-3000KVA 240 145 215 130 120 9*16
SG-4000KVA 240 155 235 130 130 9*16
SG-5000KVA 320 160 255 180 115 10*20 400 330 480
SG-6000KVA 300 165 280 180 140 10*20 400 330 480


Production process



R-Class 220℃ Insulation 2500Kva Dry Type VPI Transformer 6900V To 480V Vacuum Pressure Impregnated Transformer

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Product Detail
Brand Name :
WINLEY
Model Number :
SG-2500KVA/6.9
Certification :
ISO,CE,UL/cUL
Place of Origin :
CHINA
MOQ :
1unit
Price :
$500~$60000/Unit
Contact Supplier
video
R-Class 220℃ Insulation 2500Kva Dry Type VPI Transformer 6900V To 480V Vacuum Pressure Impregnated Transformer
R-Class 220℃ Insulation 2500Kva Dry Type VPI Transformer 6900V To 480V Vacuum Pressure Impregnated Transformer
R-Class 220℃ Insulation 2500Kva Dry Type VPI Transformer 6900V To 480V Vacuum Pressure Impregnated Transformer
R-Class 220℃ Insulation 2500Kva Dry Type VPI Transformer 6900V To 480V Vacuum Pressure Impregnated Transformer
R-Class 220℃ Insulation 2500Kva Dry Type VPI Transformer 6900V To 480V Vacuum Pressure Impregnated Transformer
R-Class 220℃ Insulation 2500Kva Dry Type VPI Transformer 6900V To 480V Vacuum Pressure Impregnated Transformer
R-Class 220℃ Insulation 2500Kva Dry Type VPI Transformer 6900V To 480V Vacuum Pressure Impregnated Transformer

Xiamen Winley Electric Co.,Ltd

Verified Supplier
5 Years
fujian, xiamen
Since 2007
Business Type :
Manufacturer, Seller
Main Products :
Three Phase Pad Mounted Transformer, Single Phase Pad Mounted Transformer, Pole Mounted Transformer
Total Annual :
$45M-$60M
Employee Number :
150~210
Certification Level :
Verified Supplier
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