Electricity has become an essential need in today’s world, and it should be managed properly. The switchgear panels do this work excellently. From small homes to buildings, plazas, and commercial areas, switchgear panels are everywhere. There are various types of switchgear panels, and their functions vary by type.
The switchgear is often described as the central nervous system of an electrical network. All the power is efficiently distributed to the designated place. It is important to understand the types and applications of switchgear panels, especially when they are designed in accordance with international standards such as IEC 62271.
Types of Switchgear Panel Based on Voltage
The primary classification of the switchgear panels is based on the voltage levels. Similarly, their applications vary depending on capacity and system. Here are three main categories of switchgear. Explore how modern designs enhance efficiency and reduce power loss in our detailed guide on energy-efficient switchgear panels.
Low Voltage (LV) Switchgear Panel
The low-voltage panel is a common type, widely used in everyday electrical systems. The panels are designed to provide safe distribution of electricity in small spaces.
- Voltage Range: Upto kV
- Usage Level: End-User Level
| Key features | Applications |
| The low-voltage switchgear panel includes easy installation and maintenance. | Widely used in HVAC and lighting systems. |
| Widely used in devices such as the miniature circuit breakers (MCBs). | Used in commercial offices |
| Compact and Cost-effective | Small manufacturing units |
Medium Voltage Switchgear Panel
The medium-voltage switchgear panel is widely used for handling high power reliably. They are the main component in managing industrial operations and network distribution.
- Voltage Level: 1 kV to 36kV
- Usage Level: Industrial and distribution
| Key Features | Applications |
| Provide advanced protections | Use in high industrial plants such as textile and manufacturing plants |
| Use technologies such as vacuum circuit breakers and SF₆ | Usage at electrical substations and commercial facilities |
| Provides high fault interruption | Renewable energy systems |
High Voltage (HV) Switchgear Panels
The high switchgear panels are designed for large-scale power transmission. They can handle high voltages efficiently.
- Voltage Range: above 36kV
- Usage Level: Power generation and transmission
| Key Features | Applications |
| They are designed for the detection of high fault levels | Usage at transissions lines |
| Can be operated remotely | Power generation plants such as hydro, thermal, and nuclear power plants |
| Consumed high insulation strength | Widely used at the grid stations and national power grids |
Types of Switchgear Panels Based on Insulation Technology
The insulation method is considered critical, as it manages voltage stress, enables early fault detection to prevent accidents, and ensures all safety parameters are met. Based on insulation technology, switchgear panels are further classified.
Air Insulated Switchgear (AIS)
The air-insulated switchgear panels use atmospheric air as the primary insulating medium. The structure of air-insulated panels is simple and conventional. It is very easy to maintain, and the inspection takes little time. The components are placed either in the open air or within the enclosed panels.
Advantages of air-insulated switchgear:
- The first advantage is the low installation cost, as some switchgear panels are very costly to install and commission.
- There is an easy method to detect the fault.
- The readily available spare parts for the switchgear panel make it easy to use.
Gas Insulated Switchgear (GIS)
The gas-insulated switchgear uses sulfur hexafluoride as an insulating medium. It plays as an excellent dielectric. The GIS system is fully insulated and compact. It has a system that protects it from environmental factors such as dust and humidity.
Advantages of Gas-Insulated Switchgear
- As discussed earlier, it is compact and easy to manage in small spaces.
- There is minimal need for maintenance, and it is highly reliable.
- In harsh weather conditions, the GIS can work efficiently,
Vacuum Insulated Switchgear (VIS)
As the name suggests, the VIS uses the vacuum as an arc-quenching medium. These types of panels are used in circuit breakers. The arc can be extinguished easily in a vacuum. In medium voltage systems, these types of panels are always preferred.
Advantages of Vacuum-Insulated Switchgear
- The vacuum-insulated switchgear has power distribution networks.
- Its biggest advantage is that it can work perfectly in medium-voltage industrial systems.
Types of Switchgear Panels based on Function
The switchgear panels can also be classified by function, with each type serving a specific role. This helps in large industrial areas and plants. Let’s have a look at them:
| Power Control Center (PCC) | Motor Control Center (MCC) | Distribution Panel (DP) | Automatic Transfer Switch (ATS) | Synchronization Panel |
| Controls the main power to different sectors | Controls and operates the electric motor | Used for the power distribution into smaller circuits | As the name suggests, an automatic transfer switch is between the main and backup | It synchronizes multiple power sources |
| The main components include Air Circuit Breakers and busbars | The main key components include the motor starters (DOL and Star- Delta) | The main key components include MCBs and distribution busbars | The components include transfer switches, controllers, nd relays | The components include synchronizing relays, controllers, and meters |
| These are widely used in large industries and manufacturing units | These are widely used in factories and HVAC | They are used in offices, homes, and commercial buildings | They are used in hospitals, data centers, airports, and banks | They are used in large industries, backup power systems, and generator setups |
Application of Switchgear Panels
Switchgear panels are used in various fields, depending on the loads, safety requirements, and operational needs. Modern switchgear systems play a vital role in ensuring efficient and reliable power distribution across industries.
Industrial Manufacturing Sectors
In many industries, such as textile mills, surgical manufacturing units, and heavy engineering plants, switchgear panels are widely used.
- Medium Voltage Switchgear is used in industries that require higher power to run machines efficiently.
- Capacitor Panels (APFC) are used to reduce power costs and improve the power factor.
- Power Control Center (PCC) Panels are widely used to safely manage and distribute bulk power.
Commercial Building and High Risk Infrastructure
The commercial building covers all the shopping malls, offices, and hotels. The switchgear panels provide a reliable and well-managed power distribution system.
- Gas-insulated switchgear is widely used in high-rise buildings, primarily due to its compact size.
- The Low Voltage Distribution Panels (DP) are highly used in the floor-wise and section-wise
Residential Sectors
In the residential sector, the main concern is safety across all regions. To protect the systems from short circuits and overloads, these panels take all necessary precautions.
- Low-Voltage Switchgear (LV) is widely used in homes for protection and control.
- The Distribution Boards (DP) are installed in homes, societies, and buildings.
Healthcare and Hospitals
In hospitals and healthcare centers, uninterrupted power availability is critical. As people’s lives are at risk, switchgear panels in such places ensure a continuous power supply for life-saving operations.
- Low-Voltage Panels are preferred for the internal power distribution.
- UPS- Integrated Switchgear Systems used in the ICU machines and ventilators.
Infrastructure and Transportation
Airports, bus stations, and railway stations require stable electrical power systems. They ensure uninterrupted transport operations and public safety.
- Medium Voltages (MV) are used at high power levels.
- Distribution panels (DPs) are used to ensure power backup for critical operations.
Conclusion
Switchgear panels have become an essential need in today’s world. For protecting, safe control, and power distribution, they are always needed. From homes to high commercial areas and industrial plants, they are needed everywhere. Each type of switchgear carries its own purpose. It is important to select the right type of switchgear panel according to your needs. Ultimately, switchgear panels are the backbone of electrical systems.
