The Solar Central Inverters combine all DC power sources (multiple strings of panels) to a central box, where it gets converted into an AC power source connected to the AC Grid.
Solar Central Inverters (output power up 5MVA)
Here above is a Central Inverter solution. Common Mode Chokes (CMC) are present in EMC Filter blocks (both Input and output stage). AC Filter Chokes are present in DC/AC converter block.
CMCs in Solar Central Inverters application can be provided in both a copper and an aluminum wound solution. Both solutions use a ferrite core that allows to achieve a lower cost with respect to a nanocrystalline. The aluminum winding furthermore reduces the total cost. In addition, the size is reduced by using a laser welding process for the joining of the aluminum conductor.
PRODUCTS
DC COMMON MODE CHOKE - ALUMINIUM WOUND
U12W01
Features
- L = 0.20mH
- Rated Current = 2000A
- DCR = 0.055 mOhm @@25C
- Copper bar conductor: rectangular section (8 mm x 100mm)
- Ferrite Material core
- Class F UL Insulation System
DC COMMON MODE CHOKE - ALUMINIUM WOUND AND WELDED
U12W02
Features
- L = 0.8mH
- Rated Current = 500A
- DCR = 0.098 mOhm @@25C
- Aluminum bar conductor: rectangular section (7 mm x 100mm)
- Laser welding connection
- Ferrite Material core
- Class F UL Insulation System
AC OUTPUT INDUCTOR
T65W01
Features
- L = 60uH @@900A
- DCR = 0.98 mOhm @@25C
- Edge Wound conductor coil: Aluminum rectangular section (12mm x 20mm)
- Powder Alloy core
- Class H UL Insulation System
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