SIA-F protection relay is suitable to protect installations against O/C and E/F. Its compact size makes this relay adequate for installition where the space is critical. Optionally, other protection functions as the thermal image (ANSI 49) the trip block for switch disconnector and control functions as the monitorization of the CB (ANSI 52), The breaker failure (ANSI 50BF) can be included.
Besides, its special mechanic with the current transformers in charge of the measurement outside, allow the user to change the transformation ratio (by giving turnes throgh the holes of these current transformers.
The relay is designed to work with standard current transformers (1 A or 5 A of secondary) and is able to measure up to 30 times the nominal current. It is provided with local and rear communications, with optional protocols as Modbus RTU or DNP3.0 Serial.
Up to 3 outputs and 2 inputs are included in the relay to monitor and signal different situations in the installation.
The SIA-F is able to record up to 200 events, 4 fault reports and 1 oscillografic records in non-volatile RAM memory with the date and time thanks to its internal real clock (RTC)
Thanks to its versatility and to its compact size, this relay can be used in a lot of applications.
Main Applications: Secondary Distribution, RMUs and SF6 insulated Switchgears