Reliable PV Power Distribution Equipment Manufacturer

• The GWPV-DCB Smart PV DC Combiner Box combines the DC outputs of multiple photovoltaic strings into a single output for connection to the DC input of a PV inverter.
• It integrates string combining, branch-circuit overcurrent and short-circuit protection, surge protection, output isolation, intelligent monitoring, and remote communication. The GWPV-DCB simplifies DC wiring and enhances system safety, fault detection, and O&M efficiency.
• The series supports 1,000 V DC and 1,500 V DC PV systems and is available with 4, 6, 8, 12, 16, or 24 string inputs. It is suitable for commercial and industrial rooftop installations and utility-scale PV power plants.

The GGD low-voltage grid-connected photovoltaic switchgear is a modular fixed-type low-voltage complete switchgear and controlgear assembly. It is designed and manufactured in strict compliance with GB/T 7251 series national standards for low-voltage switchgear and controlgear assemblies, IEC 61439 international standards, and NB/T 32004 technical specifications for photovoltaic grid-connected systems. Suitable for low-voltage distributed photovoltaic power generation systems with a rated operating voltage of AC 400V/380V and a rated frequency of 50Hz, the equipment serves as the core grid-connection interface device positioned at the Point of Common Coupling (PCC) between photovoltaic power stations, public power grids, and users’ internal distribution networks. The equipment adapts to photovoltaic systems with installed capacities ranging from 200kWp to 2000kWp and above, and is widely applied in new energy scenarios including industrial and commercial rooftop distributed PV systems, village-level centralized PV power stations, and solar-water complementary power plants.

Installed in series between the AC output side of inverters and the grid incoming line, the equipment integrates core functions including grid-connected power feeding, electrical energy metering, fault protection, safety disconnection, and grid adaptability regulation. Under normal operating conditions, the equipment stably delivers clean power. In the event of grid-side or equipment-side abnormalities or faults, the equipment performs rapid and reliable disconnection to isolate fault points effectively, ensuring the operational safety and power supply reliability of both PV power generation systems and public distribution networks.