Esteemed Wrenches, We've recently run into an issue with a local distributor citing network fault current on a split-phase service as a reason to prevent interconnection of our customer's solar array. They've given us the options of reducing our system size from 36.5kW-DC to 15kW-DC, or having the customer upgrade to 3-phase at a soft price of $20-30K. We're looking at 32kW of inverters on a 167kVA transformer.
Does anyone have experience on circumventing the issue of network fault current? Any experience with Fault Current Limiters? Much appreciated, Karl Jaeger Design/Build Engineer LightWave Solar Electric LLC
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