Solutions   for   Protecting   andManaging   the   Electrical   Network

NP   F910

Feeder protection IED with IEC 61850 protocol

The optimal management of electrical power systems is based in particular on the reliability, availability and communication skills of protection, measurement and automation devices.
The NPF910 offers a modular feeder protection and control solution for non-directional overcurrent and earth-fault protection with automatic reclosing. Up to four optional I/O or communication cards are available for more comprehensive monitoring and control applications.
The NPF910 communicates using various protocols including IEC 61850 substation communication standard.

MAIN FEATURES

  Hardware (standard)
  • Large graphic display with customizable mimic
  • Push buttons for local control of the up to 5 objects
  • 16 freely configurable leds
  • 5 current inputs
  • 5+1 output units (standard)
  • 3 digital inputs (standard)
  • 1 Front Ethernet port, 1 rear Ethernet port, 1 rear RS485 port
  Protection Functions
  • Three-phase overcurrent, 4 stages INST, DT or IDMT [50/51]
  • Earth-fault (sensitive), 4 stages INST, DT or IDMT [50N/51N (S)]
  • Harmonic overcurrent / inrush blocking, 4 stages INST, DT or IDMT [50H/51H/68H]
  • Current unbalance /broken conductor, 4 stages INST, DT or IDMT [46/46R/46L]
  • Cable thermal overload protection [49L]
  • Low impedance restricted earth fault / cable end differential [87N]
  • Breaker failure protection [50BF/52BF]
  • Arc protection (option) [50ARC]
  Disturbance and Event recording
  • Up to 100 recordings @ 64 samples/cycle (3.2 kHz)
  • Recording lenght configurable from 0.1 to 1800 seconds
  • Pre trigger configurable from 5 to 95%
  • Non-volatile event records: 15000
  MEasurement and Supervision
  • Phase and residual currents (IL1, IL2, IL3, I01, I02)
  • Current THD and harmonics (up to 31st)
  • Circuit breaker wear (CBW)
  • Disturbance recorder (3.2 kHz)
  • Current transformer supervision (CTS)
  • Trip circuit supervision [74TC]
  Control
  • Controllable objects: 5
  • Autorecloser [79]
  • Cold-load pick-up block [68]
  • Switch onto fault logic
  • 8 setting groups
  Communication protocols standard
  • IEC 61850
  • IEC 60870-5-103/101/104
  • Modbus/RTU, Modbus TCP/IP
  • DNP 3.0, DNP 3.0 over TCP/IP
  • SPA
  Options (4 slots)
  • Digital inputs optional: +8 per card
  • Digital outputs optional: +5 per card (2 cards max.)
  • Arc protection (12 sensors +2xHSO +BI)
  • 2 x mA input + 6-8 x RTD input (2 cards max.)
  • Double LC Ethernet 100Mb
  • RS232 + serial fibre PP/PG/GP/GG (option)

DOWNLOAD AREA

  Device Doc. Type Language Ref. Ind.
NP F910 Leaflet EN A928 C
NP F910 User Manual EN A936 A
NP F910 Connection/Definition Diagram EN S42461 E
Optional Boards Connection/Definition Diagram EN S42506 C