01-08-2025
Main Electrical Control Panel: Functions and Specifications
- News
- Dec 16, 2024
- 728 views
The main electrical control panel is used in low-voltage electrical systems with the role of protecting and controlling large power loads to operate stably even in the event of a breakdown. Join BTB Electric to learn about the specifications, functions, structure and application of the main electrical control panel through the following article.
What is a main electrical control panel?
The main electrical control panel is used to switch off the current to high-capacity equipment. This is an industrial electrical cabinet line that is responsible for supplying operating power to machines and motors while protecting when an incident occurs.
The main electrical control panel operates based on programmable controllers including PLCs, computers, and microprocessors. With PLC controllers, cabinets allow for the creation of complex control programs for load circuits. In addition, the cabinet has a floating double-door cabinet design, large size, box-shaped.
Main electrical control panel specifications and construction
The main electrical control panel has a vertical box block structure, 2 layers of doors, removable back and sides, and the entrances and exits are located at the top and bottom.
The technical parameters of the main electrical control panel include:
- Cabinet housing: IEC-61439 standard, galvanized steel material or powder coated.
- Protection Level: IP54
- Standby capacity: 5 – 30%
- Working Voltage: 380VAC, 1kVAC max
- Frequency: 50Hz
- Working Temperature: -5⁰C – 40⁰C
The main electrical control panel consists of the following components:
- Electrical cabinet cover: Made of stainless steel or powder-coated steel, sturdy structure, dividing the internal structure, having wiring access and layout and arranging the installation location of monitoring and operation equipment on the front.
- PLC control device (optional): Enhance automation and system monitoring
- Switchgear: MCCB, ACB, MCB,... overload and short-circuit protection; Contactor Switching Power Circuit
- Protection device: Overload protection relay.
- Meter: Measure voltage, current, power,...
- Components and auxiliary equipment: Power cord, busbar, neutral wire, push button, display screen,...
- Cooling Fan
Types of main electrical control panels
Currently, in the industrial electrical system, there are 4 types of dynamic electrical cabinets used, including:
- PLC Control Cabinet: Used for high automation system, high performance and precision required.
- Inverter and control cabinets for soft start: Used for high-capacity loads with the need to fine-tune the rotation speed or transmission flow.
- Triangle star control cabinet: Used for pump, ventilation fan, concrete batching plant, crusher,...
- Control cabinet with temperature, pressure and time sensors: Used for ventilation – hood systems.
Functions and applications of the main electrical control panel
Modern main electrical control panels are equipped with many preeminent features, notably the ability to control automation. Thanks to the integration of PLC, this type of control electrical cabinet helps to optimize the operation process, minimize human intervention and ensure stable and continuous operational performance. As a result, the main electrical control panel meets the increasing requirements of modern production systems.
Using a main electrical control panel brings a lot of benefits to the operation of the electrical system such as controlling the operation of the motor, protecting the safety of the load, and optimizing production efficiency. The main functions of the main electrical control panel include:
- Load control and protection in the event of phase loss, pressure, overload,..
- Start and control the operation of the engine.
- Simplify the operation of the equipment in the electrical system.
The main electrical control panel is being used as the main circuit breaker cabinet in factories, workshops, pumping stations, high-rise buildings, agricultural irrigation systems,...
With outstanding advantages in terms of protection features, operational reliability and customizability, the main electrical control panel has become an indispensable component in factories and factories. Using a main electrical control panel will help improve production efficiency in the factory, ensure safety for people and optimize operating costs. Refer to more information about other electrical cabinet lines on BTB Electric's webiste.
