ACDB in the context of solar panels stands for AC Distribution Board or AC Combiner Distribution Box

ACDB (AC Distribution Board)
Purpose and Function:
Power Distribution: The ACDB distributes the alternating current (AC) power generated by the solar inverters to various loads or the grid.
Protection: It provides overcurrent protection, short-circuit protection, and surge protection for the electrical system. This helps in safeguarding the components and ensuring safe operation.
Switching and Control: It allows for manual and automatic switching of power to different circuits, facilitating maintenance and control of the solar power system.
Components:
Circuit Breakers: Protect against overcurrent and short circuits.
Surge Protection Devices (SPDs): Protect the system from voltage spikes.
Switches: Enable manual control over the circuits.
Meters: Monitor voltage, current, and other parameters.
Connectors and Terminals: Facilitate the connection of various electrical components.
Importance in Solar Power Systems:
Safety: Ensures that the electrical system is protected from faults and hazards.
Reliability: Enhances the reliability of the solar power system by ensuring that power is distributed efficiently and safely.
Monitoring: Provides means to monitor the performance and health of the solar power system.
Integration in Solar Power Systems:
Residential Systems: In smaller systems, the ACDB may be integrated into a single unit that includes both DC and AC distribution components.
Commercial and Industrial Systems: In larger systems, separate ACDBs are used to manage the higher power levels and more complex distribution requirements.
Example Scenario:
In a typical solar power installation:

Solar Panels generate DC power.
Inverters convert DC power to AC power.
ACDB distributes the AC power to the load (e.g., building, machinery) or feeds it into the electrical grid.
By ensuring proper distribution and protection of AC power, the ACDB plays a crucial role in maintaining the efficiency and safety of solar power installations.