Company Profile
WinPower Electric Co., Ltd. was established in 2015 in Chengdu, Sichuan Province, China. Our manufacturing team brings more than 10 years of transformer industry experience. We operate a production base covering 80,000 m² with more than 2,000 employees, including over 300 engineers and technical specialists.
Our team consists of more than 300 engineers and technical staff, complemented by a workforce of over 2000 employees. We operate across a vast area of 80,000 square meters. Our products are designed to meet a range of international standards, including IEEE, ANSI, DOE, CSA, UL, IEC, GOST, etc.
Furthermore, we boast six specialized branch factories that focus on the production of power transformer accessories such as enameled wire, oil tanks, insulation materials, clamps, and more. This comprehensive production line ensures the consistent quality of our products.
We accept OEM and ODM orders and provide a minimum two-year warranty on all WinPower transformers.
Quality Control
Quality control is integrated into every stage of our process, from incoming material inspection and component production to assembly, testing, packing, and shipment. Inspection and test requirements are defined according to the approved technical specification and applicable standards. Nonconforming items are documented, corrected, and re-inspected before release.
Main Quality Control
WinPower ensures that each transformer is inspected and tested according to the approved technical specifications and applicable standards before delivery. Our oil-immersed power transformers are designed and manufactured in accordance with applicable IEC, ANSI, and other recognized standards.
Electromagnetic Wire Quality Control
The manufacturing of electromagnetic wires requires high-quality copper or aluminum wires. During the manufacturing process, it is important to control the tension, wire diameter, insulation layer thickness, and uniformity of the winding. The completed winding is tested for insulation resistance, withstand voltage, and other specified parameters to verify that it can withstand the electrical stresses expected in service.
Insulation Wrapping Check
Inspect the wrapped conductor for a smooth, clean surface without damage, oil stains, or creases. Verify insulation uniformity, winding consistency, the specified number of layers, and conductor continuity.
Oil Tank Quality Control
Inspect the tank dimensions, exterior surfaces, and welds against manufacturing requirements. Each tank and conservator undergoes a leakage test at the specified pressure and duration before sandblasting and painting. Any leakage or sealing defect must be corrected and re-inspected.
Iron Core Test
Inspect core-lamination alignment and insulation between laminations, and verify specified magnetic performance parameters. Where required by the test plan, conduct additional insulation or partial-discharge testing.
Accessory Check
Verify that specified accessories are correctly installed, identified, and functional, including pressure-relief devices, gas relays, tap changers, bushings, and temperature indicators.
Distribution Transformer Test
Routine and specified tests may include measurement of no-load loss, load loss, impedance, insulation resistance, dielectric loss, and AC withstand voltage, depending on the product specification and applicable standard.
High-/Ultra-High-Voltage Test
For transformers up to 500 kV, our high-voltage test hall supports specified tests such as lightning impulse, power-frequency withstand voltage, load-loss, and impedance-voltage measurements.
Tell us the required capacity, primary and secondary voltages, phase, frequency, installation environment, applicable standard, and delivery destination. Our sales and engineering teams will review your requirements and respond within one business day.
Contact Us
Tel. / WhatsApp: +86-19940712559
Email: enquiry@winpowerelectric.com
Office Address: Building 24, No. 86 Hezuo Road, Pidu District, Chengdu City, Sichuan Province, China.
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