A 1500VDC Solar DCDB Panel is designed to handle high-voltage direct current from large-scale photovoltaic (PV) systems. It combines multiple DC inputs from solar panel strings, providing protection, monitoring, and control functionalities. The panel ensures safe and efficient distribution of DC power to the inverter, which converts it to AC power for grid integration or usage.
Components and Features
Enclosure
Made from robust materials like galvanized steel.
Designed to withstand harsh environmental conditions such as UV radiation, dust, and moisture.
High IP rating (e.g., IP65 or higher) for ingress protection.
DC Circuit Breakers
Protect the DC circuits from overcurrent and short circuits.
Designed to handle high DC voltages and currents typical in solar applications.
Fuse Holders and Fuses
Provide overcurrent protection for each string of solar panels.
Rated for high DC voltages to ensure safety and reliability.
Busbars
Made from high-conductivity copper or aluminum.
Facilitate efficient distribution of DC power within the panel.
Surge Protection Devices (SPDs)
Protect the panel and connected equipment from voltage spikes and surges.
Essential for safeguarding against lightning strikes and other transient over-voltages.
DC Disconnect Switches
Allow safe isolation of the solar array or individual circuits for maintenance and emergency shutdowns.
Ensure complete disconnection of DC power.
Monitoring Devices
Measure and display electrical parameters like voltage, current, and power for each string.
Enable real-time monitoring and diagnostics to optimize performance.
Combiner Boxes
Aggregate multiple DC inputs from solar panel strings.
Include overcurrent protection and monitoring for each input.
Protection Relays
Monitor system parameters and trip breakers or disconnects in case of faults.
Ensure the protection of the system and prevent damage to equipment.
Diodes
Prevent reverse current flow that could damage the solar panels.
Ensure unidirectional flow of current towards the inverter.