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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 pickupâ€, 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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