Protective relays are critical components in electrical power systems, acting as the “nervous system” that detects faults and initiates rapid isolation of affected sections. Their primary purpose is to safeguard power system equipment, maintain system stability, and ensure personnel safety by preventing damage and limiting fault propagation.
Directional relays play a critical role in power distribution systems, ensuring proper fault detection and isolation while maintaining system stability and reliability. These relays are particularly useful in complex networks where power flow can change direction, such as ring mains, parallel feeders, or interconnected grids.
Voltage transformers (VTs), also known as potential transformers (PTs), are essential components in electrical power systems, particularly in protective relay systems. They play a crucial role in safeguarding critical infrastructure by providing accurate voltage measurements necessary for the operation of relays and other protective devices.