Product overview
-The low voltage used in photovoltaic power generation systems is a dual voltage dry type transformer, which increases the voltage generated by the photovoltaic inverter from 0.315kV (or 0.5kV) to 35kV (or 10kV).
-The low-voltage winding structure is foil type, with axial double splitting, which can be used for simultaneous or time-sharing input of two sets of inverters.
-The high-voltage coil is a "trapezoidal" segmented structure with low hierarchical voltage and strong voltage withstand capacity.
-Safety: Insulation and heat resistance level F or H, can be directly operated at the load center.
-Good performance: the whole coil is cast with resin, with high mechanical strength, strong short circuit resistance and low partial discharge.
-Long service life: Good thermal stability, high reliability, and long service life.
-Energy conservation and environmental protection: low loss, low noise, and obvious energy-saving effect.
-Low cost: small size, light weight, and maintenance free.
Product advantage
> Leading technology
- High pressure copper strip winding technology, flame retardant formula vacuum pouring
- Low pressure copper foil winding technology, thermosetting epoxy prepreg cloth insulation
- High quality iron core 45° fully oblique joint step laminated structure
> The iron core
- The core is made of high quality cold-rolled grain oriented silicon steel sheet with mineral oxide insulation
- By controlling the cutting and stacking process of silicon steel sheet, the loss level, no-load current and noise can be minimized
- The surface of the assembled core is sealed with grade F or grade H core paint to prevent dust and corrosion
> Low voltage winding
- The low voltage winding is made of high quality copper foil
- The insulation between layers is made of thermosetting epoxy prepreg cloth
- The ends of the windings are insulated with thermosetting epoxy prepreg cloth
- Excellent insulation resistance
- It has very good ability to bear radial stress caused by short circuit
- The outlet terminal of low voltage winding is tin-plated copper bar
- The whole winding is placed in the oven and heated to 140°C. After 4 hours of polymerization, it has excellent corrosion resistance to industrial gases
> High voltage winding
- Woven with insulated copper wire, and applied by hengfengyou electric exclusive patent technology
- For small volumes, the high voltage winding uses a linear voltage gradient from top to bottom
- For large-capacity products, the high-voltage windings are wound by "band winding" technology
- The application of these methods causes the electric field between adjacent conductors to be very low
- The transformer has a firm structure during normal operation and transportation
> High quality material
- Baosteel, WISCO silicon steel sheet
- China produces high quality oxygen free copper
- Swiss Huntsman epoxy resin (with flame retardant filler)
> Patent technology
- The high pressure coil is cast under high vacuum, and the casting material system is added with a unique flame retardant filler, which is a patented technology of Hengfengyou Electric.When the transformer is exposed to the flame, the transformer will die out immediately.With a unique and excellent flame retardant characteristics and the ability to adapt to harsh working environment.
Ordering instructions
- Main parameters of transformer (voltage, capacity, loss and other main parameters)
- Transformer use environment (altitude, temperature, humidity, place, etc.)
- Other customized requirements (tap switch, color, oil pillow, etc.)
- The minimum order quantity is 1 set, global delivery within 7 days
- The normal delivery period is 30 days, with fast delivery worldwide
Our advantages
- Authoritative certification: ISO、CE、CB、CCC、SASO、KEMA, etc
- Perfect SQA quality management system and patented technology to ensure high quality products
- Efficient production equipment and low raw material prices to ensure the price advantage
- Sufficient inventory, short delivery time and fast delivery worldwide
- Perfect after-sales service system, allowing customers to buy worry-free
- Provide OEM/ODM services. Welcome clients to visit our factory.
