Product Details
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
- High reliability and long service life: VPI process and Class H
insulation protect windings from moisture and contaminants and
reduce partial discharges.
- Low maintenance: Natural air cooling (ANN) and no fans mean fewer
moving parts to service.
- Energy efficiency: Designed to meet DOE 2016 efficiency levels,
reducing operating costs and losses over the transformer lifecycle.
- Quiet operation: 55 dBA sound rating suits commercial or
noise-sensitive installations.
- Safety and compliance: Constructed to meet major North American and
international standards, simplifying approvals and permitting.
- Flexible installation: NEMA 3R weatherproof enclosure and seismic
bracing enable indoor or outdoor pad- or floor-mounted
installation.
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
Company Profile
WINLEY is located in Xiamen, China. We are specialized in
manufacturing all kinds of transformers, voltage stabilizers,
voltage regulators, etc. The products are widely used in industrial
machinery, new energy, power generation, power supply, coal,
metallurgy, petroleum, chemical, construction, port, airport,
railway transportation, urban infrastructure, and other areas.
With more than 17 years experience, WINLEY always adhere to the
route of "Integrity makes brand,quality wins the market"! We have a
professional R&D team, a quality control team, scientific
production management system and comprehensive customer service
system.
WINLEY holds ISO 9001:2015 quality management system certification,
All products have approved by CE certification, we can also apply
for UL(Authorized by partner), SASO, SONCAP, etc. according to
customer requirements.
WINLEY products are sold to Europe, North & South America, Oceania,
Asia and Africa, more than 100 countries and regions in the world
are using WINLEY products. Products’ quality and technical service
are recognized by all customers around the world, and we have
cooperative distributors in some countries.
And we will continue to carry forward the integrity of compliance,
scientific and technological innovation, win-win cooperation
spirit, provide quality products and comprehensive service to all
partners, and work hard for the development of the world’s green
electrical power.
