Changeover switch, also known as a transfer switch, is an electrical device that allows for the seamless transition of power from one source to another, typically from the main power grid to a backup generator. This ensures an uninterrupted power supply, especially during outages, and is crucial for safety and the protection of electrical equipment.
Uses:
Backup Power:
The most common use is to switch to a generator when the main power supply fails, ensuring continuous operation of essential systems.
Preventing Backfeeding:
Changeover switches prevent power from flowing back into the main power grid, which can be dangerous for utility workers and damage equipment.