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decoupling relays

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NV10P

MULTIFUNCTION VOLTAGE AND FREQUENCY PROTECTION (PRO)

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NV10P

The relay type NV10P 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.

Applications
• Bus
• Generator
• Motor
• Utilities interconnection
Protection functions
• Pt100 thermometric probes (26)
• Undervoltage (27)
• Positive seq. undervoltage (27V1)
• Overvoltage (59)
• Residual overvoltage (59N)
• Average overvoltage (59Uavg)
• Negative seq. overvoltage (59V2)
• Frequency rate of change (81R)
• Underfrequency & overfrequency (81U 81O)
• Breaker failure (BF)
Monitoring and control functions
• Automatic recloser for photovoltaic plants
• CB diagnostic
• Digital Fault recording (DFR)
• Fault and event logging (SER & SFR)
• Multiple setting profiles
• Programmable Logic Controller
• Self-test
• Trip circuit supervision (74TCS)
Hardware
• 100 V standard voltage inputs
• 2 binary inputs + 6 output relays + 8 LEDs
• 400 V standard voltage inputs
• Auxiliary power supply 110-230 Vac/dc
• Auxiliary power supply 24-48 Vac/dc
• Flush, projecting, projecting, rack, with separate MMI
• Network module with Ethernet FX port (optical fiber)
• Network module with Ethernet TX port (copper RJ45) + RS485 port
• RS485 port (unavailable with Ethernet FX port)
• Voltmetric inputs from ThySensor or V-sensor
Communication
• IEC 61850 Protocol
• Modbus RTU RS232 protocol
• Modbus RTU RS485 / IEC 870-5-103 / DNP3 protocol
• Modbus TCP/IP protocol (network board must be provided)

  • application MOTOR|INTERFACE|GENERATOR|TRANSFORMER|BUS
  • ANSI protection Negative seq. overvoltage (59V2)|Breaker failure (BF)|Frequency rate of change (81R)|Residual overvoltage (59N)|Overvoltage (59)|Positive seq. undervoltage (27V1)|Average overvoltage (59Uavg)|Pt100 thermometric probes (26)|Undervoltage (27)|Underfrequency & overfrequency (81U 81O)

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