Permissive Overreaching Transfer Trip Scheme (POTT)
POTT scheme works using the following logic:
Fault in Zone 2 AND permission-to-trip signal from remote end relay.
Permissive Overreaching Transfer Trip Scheme (POTT) Read More »
POTT scheme works using the following logic:
Fault in Zone 2 AND permission-to-trip signal from remote end relay.
Permissive Overreaching Transfer Trip Scheme (POTT) Read More »
Pilot relaying refers to the communication network implemented on the high voltage transmission line (T-line) to transmit “trip or don’t trip” signal to and fro between two or more substations. The intent here is to trip the circuit breakers as fast as possible when a fault strikes the T-line, therefore, protecting it.
Basics of Pilot Relaying & Application Considerations For Transmission Line Protection Read More »