37.5 KVA Vacuum Pressure Impregnated (VPI) Transformer 2.4KV To 240V  DOE 2016 IEEE ANSI

37.5 KVA Vacuum Pressure Impregnated (VPI) Transformer 2.4KV To 240V DOE 2016 IEEE ANSI  Three Phase  Dry Type Ventilated

Overview

The Winley 37.5 kVA Vacuum Pressure Impregnated (VPI) dry-type transformer is engineered for reliable, high-efficiency power distribution in commercial and industrial environments. Designed and built to exceed industry standards, this unit offers robust insulation, low noise, and a compact footprint for pad- or floor-mounted installations indoors or outdoors (NEMA 3R).

Key Features

• Transformer Type: Vacuum Pressure Impregnated (VPI) dry-type, ventilated construction for long-term insulation reliability and moisture resistance.
• Capacity: 37.5 kVA (up to 6000kva)
• Voltage: Primary 240 V , Secondary 2400 V .
• Primary class 1.2 kV; secondary class 2.5 kV.
• Vector Group: II6.
• Insulation & Thermal: Class H insulation; 80°C temperature rise; temperature sensors and gauge included.
• Cooling & Fans: ANN (natural air cooling). No forced-air fans — lower maintenance and quieter operation.
• Winding Material: Copper for superior conductivity and reliability.
• Acoustic Performance: Approximately 55 dBA sound level for quiet operation in sensitive environments.
• Efficiency: Meets or exceeds DOE 2016 efficiency standards; typical operating efficiency up to 99.00% (measured at 50% of nameplate kVA).
• Losses: No-load losses approx. ±840 W; full-load losses approx. ±4,500 W; total load losses approx. ±5,340 W 
• Mechanical: NEMA 3R coated steel enclosure with ANSI ; Pad mount or floor mount options. 
• Altitude & Ambient Rating: Rated for operation up to 3,300 ft (1,000 m) elevation and ambient up to 40°C.
• Safety & Compliance: NRTL listed for the U.S. and Canada; complies with ANSI/IEEE C57.12.00, C57.12.01, C57.12.35, C57.12.59, C57.12.70; meets/exceeds CSA and NEMA ST-20 standards; RoHS and CE certified. Seismic bracing included for earthquake-specific installations.

Technical drawings

Benefits

1. High reliability and long service life: VPI process and Class H insulation protect windings from moisture and contaminants and reduce partial discharges.
2. Low maintenance: Natural air cooling (ANN) and no fans mean fewer moving parts to service.
3. Energy efficiency: Designed to meet DOE 2016 efficiency levels, reducing operating costs and losses over the transformer lifecycle.
4. Quiet operation: 55 dBA sound rating suits commercial or noise-sensitive installations.
5. Safety and compliance: Constructed to meet major North American and international standards, simplifying approvals and permitting.
6. Flexible installation: NEMA 3R weatherproof enclosure and seismic bracing enable indoor or outdoor pad- or floor-mounted installation.

Specification 

Production process