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
