A comprehensive single-line electrical diagram (diagrama unifilar) for a 1.34kWp residential grid-tied photovoltaic system. The installation connects to the CPFL utility grid (127/220V) in Bauru, Brazil.
System Components:
– 4 BYD335PHK-36 solar modules (335W each, INMETRO Reg: 006693/2018)
– 1 PHB1500-XS grid-tie inverter (1.5kW, INMETRO Reg: 008540/2019)
– Bidirectional utility meter configuration
– AC and DC protection devices including circuit breakers and surge protectors
Wiring Specifications:
– DC Side: 4mm² cables for positive, negative, and ground connections
– AC Side: 4mm² phase conductors with 25A bipolar breaker
– DPS Class II surge protection (Uc=275V, In=15kA)
The diagram includes the main connection point to the residential distribution board (QGBT), showing the integration with existing electrical infrastructure. A location map indicates the installation address at R. Rodolfo Bonturi in Bauru-SP.
