Product introduction

Foil winding technology is adopted in the PV inverter grid-connected transformer winding and full-joint structure in the iron core. As the material of iron chip, silicon steel strip is low loss oriented and has the advantages of low loss, high efficiency, low temperature rise and so on. This transformer is suitable for the circuit of AC 50Hz/60Hz and the voltage no more than 690V(rated voltage), The technology of this product has reached the domestic leading level. And it can be designed and manufactured depending on customers‘ requirements

Technical parameters:
1. Capacity: 50KVA-630KVA
2. Power range ≤1000KVA
3. Switching current: 10Le
4. Common-mode attenuation ≥120db 
5. Electric strength: core and winding, winding - shielding, winding - earth 3000VAC /50Hz or 60Hz / 60s no arcing or breakdown
6. Insulation resistance: 500VDC, insulation resistance value≥100MΩ
7. Noise level < 65db (The testing point's horizontal distance from transformer should be 1 metre.)
8. Protection grade: IP00
9. Insulation class: H
10. Product standards: UL1561:2000 Dry-type power transformer

Application environment and conditions:
1, The altitude is not more than 1000 meters and if more than 1000 meters, derating is required.
2, Running temperature: -5 ℃-40 ℃, relative humidity is less than 90%. 
3, Without harmful gas, inflammable, explosive and conductive dust around.