SLR 140C

Stelmec Limited has been manufacturing various types of Outdoor and Indoor Control, Relay and Protection Panels up to 400kV for the last 20 years in their state of art manufacturing facility located at Usgaon near Mumbai.

Salient Features

SLR 140C Numerical over current and Earth fault protection

  • Site selectable IA & 5A CT Input
  • Two Stages Over Current and Two Stage Earth Fault
    Protection Relay
  • IDMT Characteristics – Nl, VI, El, LTI, 3s, 1.3s, 0.6s & DTL for Phase and Earth Fault
  • Storage of latest 99 nos. of Fault & 999 nos. of Events log With lms Time Stamp Resolution.
  • User friendly Local HMI
  • Hardware and Software Self-Diagnosis
  • NDR Controlled Earth Fault Protection
  • Circuit Breaker Fail Protection
  • Trip Circuit Supervision
  • Multi-shot Autoreclosure 
  • Cold Load Pick up
  • 1 or 2 or 4 Setting Groups — Auto or Manual Selection IEC 60870-5-103 and/or MODBUS-RTU Communication Protocol
  • Inbuilt Disturbance Recorder
  • User Configurable DI / DO
  • Broken Conductor Detection
  • Negative Phase sequence Protection
  • Inbuilt Password Protection
  • Thermal Overload Protection
  • Auto Test Mode of healthiness of Relay
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