Numerical Line Over Current & Earth Fault Relay, JNC 068 Calps

Numerical Line Over Current & Earth Fault Relay, JNC 068 Calps


NUMERICAL LINE OVER CURRENT & EARTH FAULT RELAY, JNC 068 CALPS JVS Electronics Pvt Ltd offers a wide range of numerical line over current & earth fault relay, JNC 068 CALPS.

  • The relay provides time graded phase and earth fault (2 stage) protection, (high impedance) restricted earth fault protection. MODBUS communication protocol over RS-485 facilitates interfacing the relay with SCADA systems and RS – 232 / USB communication port provided at the front of the relay allows engineers to program the relay with ease. Certain advanced features such as “Cold load pickup”, RAPID, MIPConS and “Auto re-close relaying” improves the sensitivity, stability and availability of the system.
  • Its features include: It is programmable CT secondary current for 1A / 5A rating;programmable system rated frequency (50/60Hz); programmable PT secondary   voltage for 110V/ 63.5V rating.
  • Also it has programmable external digital inputs; 4 Programmable output contacts; 3 User configurable LEDs; 2 group setting; active group selection from MMI / PDI or RAPID; display of primary current.
  •  It is available in many variants to suite main and back-up over-current protection schemes. Available in both low load and normal load configurations.
  • Choice of 6 IDMT curves and definite time with hi-set (two stage characteristics); cold load pick-up; MIPConS for preventing E/F element operation during single-phasing; neutral voltage displacement protection; trip coil supervision relay.
  • Restricted earth fault (REF) element /sensitive earth fault (SEF) element /neutral voltage displacement protection; trip coil supervision relay.
  • Multi-short auto re-closer facility; stuck breaker protection / Local breaker backup
  • protection; breaker status monitoring; trip test facility; history of 200 latest comprehensive fault records along with settings.
  • Latest 100 event records can be stored; latest 10 disturbance record can be stored IEEE Comtrade compliant disturbance records; self supervision facility;     

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