Product Description:
High and low voltage electrical cabinets are an important part of the power system and are used to control, protect, monitor and distribute electrical energy. It combines advanced electrical technology and high-quality manufacturing processes to meet the needs of various power systems. The design of high and low voltage electrical cabinets focuses on safety and reliability, while also having good operability and maintainability, providing users with efficient power management solutions.
Classification of High Voltage and Low Voltage Electrical Cabinets
Electrical cabinets are essential components for managing and distributing electrical power in industrial, commercial and residential environments. They are broadly classified into high voltage (HV) and low voltage (LV) electrical cabinets, each with specific functions and applications.
Introduction to High Voltage Electrical Cabinets
High voltage electrical cabinets are designed to handle voltages typically ranging from 1kV to 36kV or higher. These cabinets are vital in power distribution networks, especially in industrial and utility applications.
1. Switch gear
- Function: They house circuit breakers, switches and fuses to control, protect and isolate electrical equipment.
- Application: Used in substations, power plants and large industrial complexes.
- Main features: High insulation, arc extinguishing capability and rugged construction to withstand high voltage.
2. Control Cabinet
- Function: Encloses equipment used to monitor and control high voltage equipment such as transformers and generators.
- Application: Used in power generation facilities and transmission networks.
- Main features: Equipped with control relays, instruments and communication interfaces.
3. Transformer Cabinet
- Function: Protects and houses transformers that step down high voltage electricity for distribution.
- Application: Used in substations and industrial facilities.
- Main features: Enhanced cooling system, protection relays, and oil or air insulation.
4. Key features may include:
1. High voltage circuit breakers or switches specifically designed for the generator's output voltage.
2. Transformers for stepping up or stepping down the voltage when necessary.
3. Protection devices to ensure the safety of high voltage circuits and equipment.
4. Monitoring and control systems for overseeing the distribution of high voltage power.
Introduction to Low Voltage Electrical Cabinet
Low voltage electrical cabinets are designed for voltages up to 1kV. They are commonly used in residential, commercial, and light industrial applications to distribute and manage electricity.
1. Distribution Board
- Function: Distributes electricity to individual circuits within a building.
- Application: Suitable for homes, offices, and small industrial facilities.
- Main features: Contains circuit breakers or fuses for protection, with a variety of circuit configurations.
2. Motor Control Center (MCC)
- Function: Centralized control of motors.
- Application: Used in manufacturing plants, water treatment facilities, and HVAC systems.
- Main features: Includes motor starters, overload protection, and control units.
3. Distribution Board
- Function: Installs electrical components such as circuit breakers and breakers to protect branch circuits.
- Application: Installed in commercial buildings, data centers, and retail spaces.
- Main features: Modular design, easy expansion, security features such as lockable doors.
4. Key features may include:
1. Low voltage circuit breakers or switches rated for the generator's output voltage.
2. Busbars or distribution bars for routing power to different low voltage circuits.
3. Protection devices such as fuses, residual current devices (RCDs), or surge protection.
4. Metering and monitoring equipment for tracking and managing power distribution at low voltages.
Both high-voltage and low-voltage distribution cabinets are tailored to the specific voltage levels generated by the generator set, and are critical to the safe and efficient distribution of power from the generator set to various electrical loads and systems.
Comparison and main differences between high-voltage and low-voltage electrical cabinets
1. Voltage handling difference
- High-voltage cabinets: Designed for high voltages, ensuring safe operation and maintenance in power distribution.
- Low-voltage cabinets: Manage lower voltages and are usually located downstream of the distribution network.
2. Structural and insulation differences
- High-voltage cabinets: Made with materials and insulation that can handle high voltages and prevent arcing.
- Low-voltage cabinets: Constructed for safe distribution of lower voltages, usually with a more modular and compact design.
3. Application differences
- High-voltage cabinets: Used for large-scale power distribution, industrial plants, and substations.
- Low-voltage cabinets: Used for local power distribution in residential, commercial, and light industrial environments
Applications:
- Industrial use
- Construction sites
- Commercial and office buildings
- Public facilities
- Telecommunications industry
- Energy sector
- Traffic signals
- Agriculture
- Environmental projects
- Remote area power supply
