Photovoltaic Copper Wire Isolation Transformer

To suppress common-mode voltage and resolve grounding-related issues, isolation transformers are the ideal solution to establish a new neutral point grounding. The transformer can realize conversion from Delta (Δ) three-phase system to Wye (Y) three-phase system. An additional electrostatic shielding layer can further suppress transmission of high-frequency pulses and noise via capacitive coupling between windings. Shielded isolation transformers provide excellent protection against various neutral-line-to-earth (N‑PE) interference (including common-mode pulses, power-frequency common-mode voltage and high-frequency noise). The transformer must be properly grounded; otherwise, the common-mode suppression function will fail.

Changrongyuan professionally designs and manufactures high-quality isolation transformers. Three-phase or single-phase dry-type low-voltage isolation transformers are widely used in low-voltage power distribution systems to achieve electrical isolation and voltage regulation. Adopting advanced production technology and imported equipment, the company selects high-quality silicon steel sheets, enameled copper/aluminum wire (or high-quality copper foil) and high-performance insulating materials, and manufactures products with optimized structural design. The product reaches insulation class H, adopts non-axis winding technology and Vacuum Pressure Impregnation (VPI) treatment for stable and reliable performance.

Product Features:

- Long service life and high efficiency; high precision, burr-free, seamless, minimum magnetic flux leakage; core efficiency with low magnetic loss
- Better dielectric strength and insulation resistance; low noise, lower temperature rise, higher safety, good protection effect, fine workmanship, attractive interior and exterior  

Application Fields:

Widely used for voltage conversion from 690V to 380V, or as 1:1 isolation transformers to provide galvanic isolation.

- Industrial applications
- Medical equipment
- Commercial sites
- Public buildings
- Wind or solar energy
- Transportation (e.g., marine or railway)
- Uninterruptible Power Supply (UPS)
- Chemical, petroleum and natural gas industries
- Motor drives and converters
- Laboratory testing
- Airport construction