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| NVA100X-B | The comprehensive solution for Feeders and Transformer |
The relay type NVA100X-B can be typically used in radial or meshed MV and LV networks as feeder or power transformer
protection:
- On radial, ring and parallel feeders of any length in solidly grounded, ungrounded, Petersen coil and/or resistance grounded systems.
- On parallel connected generators and transformer on the same Busbar.
- In HV, MV and LV electrical machines and network, load shedding and separation of active users from the grid.
Specifications
Key:
standard
optional
alternative
Applications
- Feeder
- Transformer
Protection functions
- Pt100 thermometric probes (26)
- Phase undercurrent (37)
- Negative sequence overcurrent for Line / Transformer (46LT)
- Thermal image for Line / Transformer (49LT)
- Phase overcurrent (50/51)
- Measured residual overcurrent (50N(1)/51N(1))
- Calculated residual overcurrent (50N(Calc)/51N(Calc))
- Residual overcurrent (50N/51N)
- Phase directional overcurrent (67)
- Ground directional overcurrent (67N)
- Automatic reclosing (79)
- High impedance restricted earth fault (87NHIZ)
- Breaker failure (BF)
- Phase interruption under low-load condition (I2/I1)
Monitoring and control functions
- CB diagnostic
- Cold Load Pickup (CLP)
- CTs monitoring (74CT)
- Digital Fault recording (DFR)
- Fault and event logging (SER & SFR)
- Fault Locator (FL)
- Logic selectivity
- Multiple setting profiles
- Programmable Logic Controller
- Second harmonic restraint
- Self-test
- Trip circuit supervision (74TCS)
- VTs monitoring (74VT)
Hardware
- 100 V standard voltage inputs
- 16 binary inputs + 16 output relays + 16 LEDs + IRIG-B
- 16 binary inputs + 16 output relays + 24 LEDs + 8 Pt100
- 16 binary inputs + 8 output relays + 16 LEDs
- 19/2-inch "4U" rack mounting
- 32 binary inputs + 16 output relays + 16 LEDs
- 400 V standard voltage inputs
- Auxiliary power supply 110-230 Vac/dc
- Auxiliary power supply 24-48 Vac/dc
- Flush mounting
- Front Ethernet port for local interface
- Nominal current 1/5 A selectable by DIP-switch
- One TX (RJ45) port + one FX (optical port) port + RS485
- Standard CT amperometric inputs 1/5 A
- Two FX (optical fiber) port + RS485
- Two TX (RJ45) port + RS485
Communication
- IEC 61850 Protocol
- Modbus RTU RS485
- Modbus RTU RS485 / IEC 870-5-103
- Modbus RTU RS485 / IEC 870-5-103 / DNP3 protocol
- Modbus TCP/IP Protocol
- Modbus TCP/IP protocol for local interface
Products
