Overview of Solar ACDB & DCDB

Reliable AC & DC Power Distribution for Solar Power Plants

A Solar ACDB (AC Distribution Board) and Solar DCDB (DC Distribution Board) are critical components of a solar power plant used to safely distribute, protect, and control electrical power generated from solar photovoltaic systems.

A Solar ACDB & DCDB assembly typically consists of IP-rated enclosures, surge protection devices (SPDs), MCBs/MCCBs, contactors, terminals, and energy protection components. These panels are installed after the solar inverter and before the connected load or LT panels, ensuring safe and efficient power flow.

AAVAD Instrument Pvt. Ltd. designs and manufactures high-quality Solar ACDB & DCDB Panels for grid-tied, off-grid, and hybrid solar power systems.

What is Solar ACDB and DCDB?

• DCDB (DC Distribution Board):
  Collects DC power from solar PV arrays or array junction boxes and provides protection before power reaches the inverter.

• ACDB (AC Distribution Board):
  Distributes AC power from the inverter to LT panels or loads while providing isolation, surge protection, and system safety.

Together, Solar ACDB & DCDB panels ensure safe energy transfer from solar panels to inverter and from inverter to electrical loads.

Working of Solar ACDB & DCDB

When sunlight falls on solar panels, DC voltage and current are generated at the PV terminals. A typical grid-connected solar PV system includes:

• Solar PV Array

• Array Junction Box (AJB)

• DCDB

• Solar Inverter

• ACDB

• AC Cabling & LT Panels

The DCDB protects DC circuits from surges, short circuits, and overcurrent before power reaches the inverter.
The ACDB then manages and distributes AC power from the inverter to loads or grid connection points.

Solar ACDB & DCDB panels act as LT distribution panels that ensure system reliability and long-term operational safety.