2500 kVA Solar PV Step-Up Substation Package in Atacama Desert, Chile
Low-loss 2500 kVA 33kV solar step-up transformer package engineered for high UV, extreme sandstorm abrasion, and 60Hz Chilean utility grid integration.
1. Project Context & Operational Challenge
Solar PV plants in the Atacama Desert endure extreme solar irradiance, airborne silica dust abrasion, and harsh daily thermal cycles. Utility power purchase agreements require strict grid compliance and ultra-low no-load idle losses to prevent energy revenue loss during nighttime non-generating hours.
2. Customized Engineering Solution
XinHuan delivered a specialized 2500 kVA 33kV/0.69kV solar step-up transformer featuring an S13 ultra-low loss silicon steel magnetic core, hermetically sealed corrugated oil tank with nitrogen cushion, sand-proof IP65 terminal cabinets, and 60Hz frequency optimization.
3. Installed Equipment Parameters & Ratings
| Parameter Specification | Design Rating & Certified Value |
|---|---|
| Rated Capacity | 2500 kVA (2.5 MVA) |
| Primary Voltage | 33 kV |
| Secondary Voltage | 0.69 kV (Inverter AC Output) |
| Frequency | 60 Hz |
| No-Load Loss (Po) | 1,980 W |
| Load Loss (Pk) | 12,700 W |
| Enclosure Protection | IP65 Outdoor Dust-Proof |
| Delivery Terms | CIF Port of Antofagasta / Valparaíso |
4. Project Outcomes & Field Performance
Installed in a 50MW Solar PV facility, the transformer package achieved 100% grid compliance sign-off by Chilean inspectors and has delivered 99.98% operational efficiency.
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