690VAC / 660VAC ADyn11 Step Isolation Transformer

For Central Inverters in Utility-Scale Solar Power Plants

Modern utility-scale solar power plants widely use central inverters operating at 690VAC or 660VAC output voltage. These inverters require reliable auxiliary power for plant monitoring systems, control circuits, protection relays, and inverter auxiliary loads.

The 690VAC / 660VAC Step Isolation Transformer (ADyn11) is designed to provide safe electrical isolation and stable low-voltage auxiliary supply for solar power plant infrastructure.

GEESYS manufactures high-performance dry type step isolation transformers specifically designed for central inverter based solar PV systems, ensuring stable operation, enhanced protection, and reliable auxiliary power distribution.