NUMERICAL SWITCHING RELAY

ALIND Relays Division was the first company in whole India to develop a numerical switching relay.
Key Features:-
➢ Advanced Digital Fourier Transform based Numerical algorithm design using 16-bit Digital Signal Controller (DSC).
➢ Compact Construction covering several protection modules saving panel space.
➢ Man-Machine Communication through 20×4 character LCD display and LEDs.
➢ Self supervision of both hardware and software units.
➢ Interface ability with SCADA is achieved through IEC 60870-5-103 communication protocol.
➢ Facility for storing fault waveforms (Disturbance recorder) and events with date and Time stamping. At a time a total of 5000 events and 200 latest fault waveforms (Disturbance recorder) will be stored in the relay.
➢ Graphical User Interface for Harmonic analysis, DC analysis and di/dt analysis can be done on the uploaded fault waveforms with facility for report generation.
➢ Facility to access/modify the relay settings both online as well as through menu in local PC through SCADA at RCC.
➢ Relay Indication (LED) reset from RCC.
➢ Suitable password protection.
➢ GPS time Synchronization Facility.
➢ Settable CT and PT ratios.
➢ CB close and open command initiation from relay through RCC.