FAQ

An electric substation company is a business that designs, builds, maintains, and/or operates electric substations. These companies may also provide related services such as transmission and distribution system engineering, project management, and equipment supply.

Electric substation companies offer a range of services including substation design, construction, testing, and maintenance. They may also provide consulting services for project management, equipment procurement, and system upgrades. Some companies specialize in specific aspects of substation work, such as automation and control systems or protective relays.

When selecting a substation location, factors such as proximity to load center, availability of suitable land, communication facilities, drainage facilities, essential amenities for staff, pollution-free atmosphere, and future expansion options are considered.

Head protection and insulated gloves are important safety equipment for electricians working in substations. The risk of head injury outweighs the risk of shock in many job sites, and insulated gloves are crucial for high-voltage situations.

Corona rings, also called grading rings, are hollow metallic rings with a smooth surface. They are placed suitably to metal clamps or joints to encircle the conductor’s surface in order to prevent corona discharge, which can occur mostly at sharp corners and edges near the conductor fixing points.

Some common types of substation include pole-mounted substations, which are outdoor substations with equipment installed overhead on H-pole or 4-pole structures, and indoor substations, which are housed in buildings or underground. Pole-mounted substations are the cheapest form of substation for voltages not exceeding 11kV (or 33kV in some cases), and are often used for local power distribution.