Types of Electrical Panels and Their Functions in Industry

In industrial electrical systems, electrical panels are more than just boxes filled with cables and switches. They are the main control center that manages the distribution, control, and protection of electrical power to ensure all production processes run efficiently and safely.

Various industries such as manufacturing, offices, hospitals, and data centers use different types of electrical panels depending on their needs and system complexity. This article explains the types of electrical panels and their functions so you can understand the crucial role each panel plays in industrial installations.

1. Main Distribution Panel (MDP)

Function:

Distributes electricity from the main power source (transformer or utility grid) to all sub-panels within the system.

This panel is the “heart” of a building’s or factory’s electrical system. It typically consists of a main MCCB, busbars, and electrical measuring instruments. The MDP acts as the starting point for all electrical currents that will be distributed to various areas or machines.

2. Sub Distribution Panel (SDP)

Function:

Continues the power distribution from the main panel to specific areas or loads.

The SDP helps break down electrical loads and makes the distribution system more structured. This panel enables zone-based control and minimizes the risk of widespread damage if a disturbance occurs in one area.

3. Control Panel

Function:

Controls the operation of equipment or machines either automatically or manually.

Control panels are used in automation systems such as conveyors, HVAC, or production machines. Inside are components such as contactors, relays, timers, and sometimes PLCs (Programmable Logic Controllers). This panel is essential for machine process efficiency and operation management.

4. Capacitor Bank Panel

Function:

Corrects the power factor to prevent energy waste.

The capacitors inside this panel absorb reactive power and increase system efficiency. Industries that use many electric motors require this panel to avoid utility penalties caused by low power factor.

5. Automatic Transfer Switch Panel (ATS)

Function:

Automatically switches the power source from the utility grid to the generator when a blackout occurs.

ATS panels are crucial in industries that require continuous power, such as hospitals, server rooms, and cold storage facilities. This panel ensures fast and safe power transition.

6. Automatic Main Failure Panel (AMF)

Function:

Automatically starts the generator when the main power source fails.

AMF panels usually work together with ATS panels. When the utility grid fails, the AMF starts the generator and the ATS transfers the load to it. Once grid power returns, the system is restored to normal operations.

7. Synchronizing Panel

Function:

Combines two or more power sources (usually generators) so they can operate together in synchronization.

This panel is used in large projects or systems with high redundancy, such as airports, large factories, or mining operations. It ensures voltage and frequency stability when multiple power sources run simultaneously.

8. Low Voltage Main Distribution Panel (LVMDP)

Function:

Distributes low-voltage power (below 1000V) to other panels.

It is typically used to supply loads that do not require high voltage. LVMDP panels are commonly found in industrial facilities for lighting systems, sockets, or control panels.

9. Inverter Panel / Solar PV Distribution Panel

Function:

Used in renewable energy systems such as Solar Power Plants (PLTS).

This panel regulates the distribution of power from solar panels to the load or the utility grid. It is usually equipped with DC isolators, inverters, surge protection devices, and MCBs.

Conclusion

Understanding the types of electrical panels and their functions is essential for anyone involved in planning, procurement, and managing industrial electrical systems. Each panel type has a specific role, and choosing the right one will significantly improve system efficiency, safety, and reliability.

PT. Maju Jaya Prima Perkasa provides various high-quality electrical panels that can be customized based on your project requirements—from distribution panels to automation panels. Contact our team for more efficient and reliable electrical solutions.