An ISO 9001 : 2015 Organisation

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.

Models Available

  1.   ANS 321

Product Specifications

  • Confirming Standard: IS 3231
  • Rated Voltage: 110V AC
  • Rated Current: 5A AC
  • Rated Auxiliary Voltage: 110V DC
  • IP Grade: IP54
  • Rated short time current for 1 sec: 40 times In(200A)
  • Temperature Range: -10 degree Celsius to +65 degree Celsius
  • Dielectric Withstand ability: 2kV(rms), 50Hz, AC
  • Fixture: Withdraw-able type Flush mounted
  • Overall Dimensions, WxDxH: 263x173x330 mm
  • Cutout Dimensions, WxH: 245×157 mm
  • Weight: 6.7kg

Protections Available

  • CB Diagnostics
  • PT Diagnostics
  • Trip Circuit Supervision
  • Relay self-diagnostics

Product Literature

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