What is Overvoltage Protection ?
What is Overvoltage Protection ?
Overvoltage Protection Definition
Overvoltage protection is defined as measures taken to prevent electrical systems from damage due to excessive voltage levels.
Causes of Overvoltage
Overvoltages can be caused by lightning, switching operations, insulation failure, arcing ground, and resonance.
Switching Impulse
When a no-load transmission line is suddenly switched on or off, it can create a transient overvoltage in the system.
Lightning Impulse
Lightning can cause very high overvoltage surges that are highly destructive and need to be prevented.
Methods of Protection Against Lightning
Earthing screen
Overhead earth wire
Lighning arrester or surge dividers
Methods of Protection Against Overvoltage
Protection methods include earthing screens, overhead earth wires, and lightning arresters.
