- OLD SERIES. ASK TO THYTRONIC CUSTOMER SUPPORT FOR AVAILABILITY -

The relay type SCC is intended for the protection of distribution networks, against short circuits and earth faults.
Thanks to the auto-reclosure function together with earth fault directional function, the SCC relay accomplish to all protection functions normally provided in the delivery switchboard.The relay features the following characteristics:

• directional and not directional earth fault;
• reclosing function fully programmable;
• digital input circuits associated with field signals;
• protection functions and final relays fully programmable;
• selectable operation curves with independent or dependent time both for the overcurrent and for the earth fault functions;
• direct read-out of all the input quantities by means of digital display on the front panel;
• counters linked with the reclosing function;
• counting of the number of operations performed for each function;
• counting of the cumulative switched currents for each pole of the circuit breaker;
• storing the values of input quantities corresponding to the eight last operation and trace memory, triggered when trip occours, with pre and post-trigger;
• blocking circuit for accelerated protection schemes;
• continuous monitoring of internal circuits;
• real time clock with memory backup;
• serial communication circuit RS485 with MODBUS© RTU protocol.