Terditional MV Panel
Traditional Iranian Medium Voltage (MV) Switchgear has been widely used in Iran’s power distribution and transmission networks for decades. These switchgear systems have been installed in numerous industrial, infrastructure, and public utility projects, providing reliable performance based on local engineering expertise and extensive operational experience. They continue to serve a broad range of applications across the country’s
industrial sector.
Voltage Range and Applications
Traditional MV switchgear is typically designed for up to 33 kV and is commonly used in
Industrial power distribution substations
Manufacturing plants and processing facilities
Utility distribution networks
Infrastructure and public service installations
Construction and Main Components
These switchgear assemblies are of metal-enclosed construction and typically include
SF₆ gas-insulated or vacuum circuit breakers
Disconnectors and earthing switches
Current Transformers (CTs) and Voltage Transformers (VTs/PTs)
Protection relays
Copper busbars
Cable compartments and termination chambers
Key Advantages
Simple and reliable design
Easy operation and maintenance
Cost-effective compared with modern switchgear solutions
Locally manufactured with readily available spare parts
Well suited for harsh environmental conditions
Limitations
Although these switchgear systems offer proven reliability, they have certain limitations compared with modern medium voltage switchgear. They generally provide lower levels of personnel safety, occupy more installation space, and typically lack advanced internal compartmentalization, arc-resistant construction, and intelligent monitoring and .control features
Role in Iran’s Power Industry
Traditional Iranian MV switchgear continues to represent a significant portion of the country’s electrical infrastructure. In many facilities, these panels are modernized through retrofit* programs that include replacing circuit breakers, upgrading protection relays, and improving control systems. These upgrades enable the switchgear .to comply more closely with current industry standards while extending its operational service life
