The 100SR O/C Relay is a self-powered relay that does not require any auxiliary power or a battery to operate. This equipment receives power through the additionally installed CT for power, and uses it to perform protection operations.
The 100SR Relay is designed for fast-restart and a low power structure, and thus the Relay can perform protection operation at low currents.
Intuitive user interface and front panel
Phase and Ground Overcurrent Protection
Set all protection element parameters for phase and ground by using the Rotary switch on the front panel
The multiples for TCC Type (EI, VI, NI, and Definite Time), pickup level, and definite time, the multiples for time dial, and instantaneous O/C, and definite time
Indicate the phase information occurred faults recently through the latch relay and the capacitor
Run, fault pickup, and fault indicator
Test button for lamp test
Reset button for fault targets
Button to check a phase that occurred faults recently
Wake Up button to operate a device by connecting a separate DC auxiliary power.
Places where protection is required for distribution networks and load incoming lines
Places where connection with the automation system is not required
Places where protection is required for underground lines that have difficulty supplying auxiliary power
Since auxiliary power is not required, installation cost is reduced.