🔆 IST Solar DCDB Designer v3.0
🔆 IST Solar DCDB Designer v3.0 is an electrical planning and specification tool used to correctly size and configure Direct Current Distribution Boxes (DCDB) for solar photovoltaic (PV) power plants. Developed by the Institute of Solar Technology (IST), it helps EPC contractors and engineers safely design the DC circuit.
Key Features and Capabilities
- String Calculations: Automatically calculates the current and voltage ratings based on the number of strings and the specifications of the solar panels.
- Component Selection: Recommends the correct sizing for safety equipment like DC Surge Protection Devices (SPDs), DC Fuses, and DC Isolators/MCBs based on IEC/IS standards.
- Bill of Quantities (BoQ): Generates a comprehensive materials list and estimates to ensure budget accuracy.
- Safety & Compliance: Ensures the DCDB layout complies with the safety guidelines required for high-voltage DC circuits to protect inverters from surges and short circuits.
🔆 IST Solar ACDB Designer v4.1
🔆 IST Solar ACDB Designer v4.1, Professional engineering tool for complete ACDB design for solar power plants — residential rooftop to utility scale.
MCCB/MCB/SPD/CT/Busbar/Cable/RCBO design. A4 PDF print · PASS/FAIL verification.
Standards: IEC 61439, IEC 60947-2/3, IEC 61643-11, IEC 60364, IEC 60529, IS 13947, IS 694, IS 3043, IS 8623, CEA Regulations 2010, IEEE 519.
Key Features of v4.1
- Automated Sizing: Accurately calculates required MCB/MCCB ratings, Surge Protection Devices (SPDs), and wire gauges based on inverter capacity.
- Safety Configurations: Automatically defines IP-rated enclosures, copper busbars, and terminal blocks for both single-phase (240V) and three-phase (415V) systems.
- Full Calculation Engine: • XLPE vs PVC separate derating tables (7 temperature points each), • Grouping factor K_g (IEC Table B.52.17), • Auto-match MCCB/MCB/Cable/Busbar/SPD with PASS/WARN, • PVC vs XLPE ampacity correction,
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