Schneider Electric Circuit Breakers and Switches, Electrical Protection and Control

Automatically operated electrical switch designed to protect an electrical circuit from damage caused by excess current from an overload or short circuit. Its basic function is to interrupt current flow after a fault is detected.

Main Benefits

• Control the tripping of the circuit breakers surrounding the faulted part of the network
• Safety: Instrument transformers create electrical isolation from the power system, and thus establishing a safer environment for personnel working with the relays
• Economy: Relays are able to be simpler, smaller, and cheaper given lower-level relay inputs
• Accuracy: Power system voltages and currents are accurately reproduced by instrument transformers over large operating ranges
• Monitoring equipment which collects data on the system for post event analysis