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Product Information
As the technology developed the protection devices have also undergone many changes from a normal fuse to the circuit breaker. For years we have been using static relays and magnetic relays for protecting an electrical network, now when the microprocessors got evolved the protection devices also got evolved. We previously learned about different types of relays, and Numerical Relay was one of them, so today we will focus more on this type of relay.
Numeric relays are the evolved form of a static and electromagnetic relay. They are basically a device used for measuring electric parameters in an electrical network and convert them into numerical data which undergoes mathematical and logical analysis to decide on tripping an electrical network.
The main purpose of a numerical relay is to protect the electrical network from unexpected fault currents. Numerical relays are mostly preferred because of their versatile characteristics. A single Numerical relay can monitor multiple parameters like current, voltage, Frequency, onset time, offset time, etc. And the same relay can be used for analysing and monitoring multiple faults such as over current, over fluxing, different current and more.
REYROLLE Series – 7SR1003, 7SR1004, 7SR11, 7SR12, 7SR17, 7SR105, 7SR242, 7SR5 etc
SIPROTEC 4 Series – 7SJ66, 7SJ61/62/63/64, 7UT, 7UM, 7SD, 7SS etc
SIPROTEC Compact Series – 7SJ80, 7SK80, 7RW80, 7SD80 etc
SS AUTOMATION & RTU – SICAM A8000, SICAM SGU, SICAM SAFETY etc
Control Monitoring & Diagnosing – SICAM PQ ANALYZER, SICAM SCC/DIAMOND etc
Software’s – DIGSI 4, DIGSI 5, SICAM PAS SOFTWARE (6MD90), IEC 61850 System Configurator