GENERAL
10
NV10B - Manual - 04 - 2022
2 G E N E R A L
2 G E N E R A L
Preface
The relay type NV10B can be typically used in HV, MV and LV distribution systems, on transformers
or for electrical machines.
It can be used for system decoupling, load shedding and loss of main (islanding) protection.
In addition to the main protection element, the breaker failure (BF) , Trip Circuit Supervision (TCS) and
programmable logic (PLC) are also provided are also provided.
Following input circuits are available:
• Three voltages (line-to-line or line-to-ground) with nominal voltages programmable in the range
50...130 V (
U
R
=100V) or 200...520 V (
U
R
= 400V) and one residual voltage input with nominal voltage
programmable in the range 50...130 V (
U
ER
=100V).
• Two binary inputs.
Setting, programming and reading operations must be effected by means of Personal Computer with
ThyVisor software or by means of remote communication interface (RS485 bus, Ethernet network
and USB); all operations must be performed through MMI if enabled.
According to the hardware configurations, the NV10B protection relay can be shipped in various
case styles depending on the required mounting options:
• Flush.
• Projecting mounting.
• Rack.
• With separate operator panel.
Other options are:
• Auxiliary power supply operating range.
• Communication protocols.
Main features
• Metallic case.
• Backlight LCD 4x16 Display.
• Eight LEDs that may be joined with matrix criteria to many and various functions.
• RESET key to clear LED indications and latched output relays.
• Two free settable binary inputs.
• Independently settable for start, trip, self-test and control six output relay (K1...K6) Each output
relay may be set with normally energized or normally de-energized operating mode and manual or
automatic reset (latched/no-latched).
• Rear Ethernet communication port, with MODBUS TCP/IP® protocol, with RJ45 (copper wires) or
FX (optical fiber) connection.
• Rear RS485 port, with ModBus protocol.
• USB front serial port (local communication for ThyVisor).
• Real time clock with super capacitor.
NV10P-B-en.ai
Protective elements
