PDB Panel
A PDB (Power Distribution Board) Panel is a crucial part of an
electrical system that distributes power from a main supply to
different circuits or subpanels in industrial, commercial, and
residential applications. It ensures safe and efficient power
distribution while protecting electrical devices from overloads, short
circuits, and voltage fluctuations.
1. Purpose of a PDB Panel
- Efficient Power Distribution – Supplies power to multiple circuits in a controlled manner.
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- Protection Against Overload & Short Circuits – Prevents electrical faults using circuit breakers and fuses.
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- Voltage & Current Regulation – Maintains stable power supply to avoid damage to connected equipment.
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- Centralized Power Control – Allows easy monitoring and maintenance of electrical systems.
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2. Components of a PDB Panel
A. Power Protection & Distribution Devices
- MCB (Miniature Circuit Breaker) – Protects individual circuits from overcurrent.
- MCCB (Molded Case Circuit Breaker) – Provides higher capacity protection against
overloads & short circuits.
- ACB (Air Circuit Breaker) – Used in high-power applications for main power protection.
- Fuse Units – Additional protection against overcurrent conditions.
- Surge Protection Devices (SPD) – Prevents damage from power surges & lightning strikes.
B. Power Monitoring & Control
- Energy Meters – Monitors voltage, current, power factor, and energy consumption.
- Digital Multifunction Meters – Provides real-time data on electrical parameters.
- LED Indicators – Shows power status and faults.
- HMI/SCADA Integration – For remote monitoring and automation (optional).
C. Busbar & Wiring
- Busbar Material – Copper/Aluminum for power distribution.
- Insulated Wiring – High-quality cables for safe power transmission.
- Ferruling & Labeling – Ensures easy identification for maintenance.
3. Types of PDB Panels
A. Based on Voltage & Application
- LT PDB Panel (Low Tension) – Operates below 1000V for industrial & commercial use.
- HT PDB Panel (High Tension) – Operates above 1000V for high-power distribution.
- Single-phase PDB Panel – For small-scale power distribution (230V AC).
- Three-phase PDB Panel – For industrial & commercial applications (415V AC).
B. Based on Functionality
- MDB – Primary panel receiving power from transformers or generators.
- Sub-Distribution Board (SDB) – Secondary panel distributing power from MDB to
different areas.
- ATS Panel – Switches between grid power and backup generator supply.
- Capacitor Panel (APFC) – Maintains power factor to improve efficiency.
4. Technical Specifications
- Operating Voltage: 230V / 415V / 690V AC
Frequency: 50Hz / 60Hz
Busbar Rating: 100A – 5000A
Short Circuit Protection: MCCB/MCB/ACB/Fuses
Enclosure Protection: IP42, IP54, IP55, IP65 (Dust & Water Resistant)
Cooling System: Natural / Forced Cooling with Fans
5. Applications of PDB Panels
- Industries – Manufacturing, Steel Plants, Chemical Plants
- Commercial Buildings – Offices, Malls, Hotels, Hospitals
- Power Plants – Load distribution in substations & switchyards
- Water Treatment Plants – Pumping stations & motor control
- Renewable Energy – Solar & wind power distribution
