mv

Numerical OC And EF Protection Relay With IEC61850 Communication Protocol


In the field of power system protection, Stelmec offers digital relays which are enabled with recent technologies. The Stelmec modular multi function protection relay SLR140C-e monitors the three phase electrical networks & protects those against faults. It is designed for highly electrical noisy substation environment. These relays come with the following extensive protection features: 50, 51, 50N, 51N, 50G, 51G, 37, 46, 49, 50BF, 62CLP, 46BC, 79, 64N,74TC, 86, 59N (NDR), HiZ & offer 1 or 2 or 4 group settings & communication protocol options; IEC60870-5-103, MODBUS-RTU & IEC61850.

Functional Overview:
Protection & Control Functions

  • Two Stages Over Current, Calculated Earth Fault and Measured Earth Protection Relay (50/51/ 50N/ 51N/ 50G/ 51G)
  • IDMTL Characteristics - NI, VI, EI, LTI, 3s, 1.3s, 0.6s & DTL for Phase & Earth Fault
  • Transient Free Phase Fault & Earth Fault High Set Elements
  • Latest Up To 100 Fault Log With Time Stamp Resolution
  • Latest Up To 1000 Events Log With Time Stamp Resolution
  • User Friendly Local HMI
  • Hardware and Software Self Diagnosis
  • Four Discrete Elements For Phase Fault & Earth Fault
  • High Impedance Fault Protection (HiZ)
  • Neutral Displacement Protection (NDR) for Blocking Earth Element during Single Phase Load Conditions
  • Programming Logic Equation & Protection Blocking Feature
  • 1 or 2 or 4 Setting Groups – Auto or Manual Selection
  • IEC 61850 and/or Iec 60870-5-103 and/or MODBUS-RTU Communication Protocol for SCADA
  • Inbuilt Disturbance Recorder for Latest 100 Fault
  • User Configurable Relay Digital Output , Digital Input & LEDs
  • Draw-out / Fixed Type Case
table

Casing

  • (WxHxD): (134 x 180 x 292) mm ~
  • Cutout size (WxH): (110 x 158) mm ~
  • Degree of Protection: IP 54
  • Weight: 2.85 Kg ~
  • Draw-out / Fixed type
keys
  • There is continuous effort at Stelmec to keep abreast of latest technology in line with customers’ requirements and hence the product specifications are subject to change.
  • Products described in this catalogue are manufactured and supplied according to Certified Management System ISO 9001:2015.
  • Product variants provide different combinations of features / specifications listed above & need not necessarily be a part of single variant.
Site Best Viewed in Google Chrome 29 & above, IE 10 & above, Mozilla 23 & above, Safari 3 & above