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Nexus 1500+ Power Quality Meter with Phasor Measurement Unit

Nexus 1500+ Power Quality Meter with Phasor Measurement Unit

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The Nexus® 1500+ power quality meter provides invaluable power quality analysis using the latest PQ standards to record electrical disturbances, improving power system reliability and reducing downtime costs. It is also a precision revenue meter that collects energy usage with high accuracy. It is a cyber secured power quality meter, featuring multiport communication and is easy to install into existing infrastructure.

  • Precision Revenue Metering
  • Power Quality Analysis
  • Phasor Measurement Unit (PMU)
  • Resilient Cyber Security™
  • Multiport Communication
  • Customizable Installation

    Precision Revenue Metering
    Creates Confidence in Energy Measurement

    • Certified ANSI C12.20 0.1 Accuracy Class
    • 0.06% energy accuracy with Constant Calibration™ Architecture
    • Extensive load profiling, TOU, and line loss compensation
    • Multifunction metering, including current, volts, watts, and frequency
    • Vector/arithmetic sum for VA calculation

    Power Quality Analysis
    Eliminating Disturbances and Outages Reduces Operating Costs

    • Capture power quality events, including surges and sags, and record sub cycle transients at 50 MHz resolution
    • Monitor voltage reliability to industry-accepted normative standards – IEC 61000-4-30 Class A Ed. 3 Certified
    • Provide power quality reliability indices, including CBEMA and SEMI F47
    • Quantify system reliability with power quality measurements, such as harmonics, flicker, unbalances, frequency, and power factor – IEC 61000-4-15 Class A Flicker Meter and IEC 61000-4-7 Class A Harmonics and Interharmonics analysis Certified power quality meter
    • Customize and view EN 50160 power quality compliance reports

    Phasor Measurement Unit (PMU)
    Synchrophasor Measurements Improve Power System Stability

    • Provide system operators with wide-area situational awareness through improved visibility into dynamic grid conditions
    • Determine stress points of the electric power system
    • Detect and aid in restoring an islanded section of the grid after a storm or major outage disturbance
    • Instantaneous measurements provide early warning detection alerts that SCADA systems miss
    • Provides built-in system wide PMU analysis for future implementation of big data analytics, artificial intelligence, and machine learning to proactively improve power systems and prevent outages

    PMU Captures Events SCADA Misses

    • The PMU provides the following synchronized measurements:
      • Individual voltage/current phasors (Va, Vb, Vc, Ia, Ib, Ic)
      • Symmetrical components phasors (V0, V1, V2, I0, I1, I2)
      • Frequency and Rate of Change of Frequency (ROCOF)
      • Built-in digital inputs
      • Analog
        • Fundamental power: (watt total and per phase, VA total and per phase, VAR total and per phase)
        • Displacement power factor: (total and per phase)
    • Supports P (Fast Response) or M (Precise Measurement) classes, user selectable
    • Data frame rates for 50 Hz: 10/25/50 frames per second; for 60 Hz: 10/12/15/20/30/60 frames per second
    • Data format: Configurable float or integer, polar or rectangular
    • Time sync standard: IRIG-B or IEEE 1588 PTPv2
    • Number of sessions: up to 2 simultaneous clients
    • Supports Ethernet or Fiber over Ethernet: TCP communication for header, configuration, and command; UDP communication for data, including unicast, broadcast, and multicast

    Resilient Cyber Security™
    A Cyber Secured Implementation Prevents Attacks on Your Power System Data

    • 128-bit AES encrypted communication of sensitive data including passwords, usernames, roles, and rights
    • 24-character complex passwords with password expiration
    • 512-bit digital firmware signature, to ensure firmware integrity when updating the meter’s firmware
    • Eliminate brute force attacks with password fail timeouts
    • Customizable role-based authorization with eight configurable roles
    • Physical seals requiring physical access to the power quality meter make remote tampering impossible
    • Security lockout prevents security from being disabled

    Multiport Communication
    6 Communication Ports Communicate with SCADA and Other Software Systems Simultaneously

    • Communication protocols include Modbus ASCII/RTU/TCP, DNP3, IEC 61850 GOOSE messaging, IEEE C37.118 (PMU), SNMP, SMTP, SNTP, and IEEE 1588 PTPv2
    • Up to 64 simultaneous protocol connections
    • Built-in webserver to view and analyze real time data
    • Two independent ethernet ports, with unique IP addressing, port control for security, DHCP, and email on alarm
    • Two independent serial ports
    • Front panel ANSI optical and USB ports

    Customizable Installation
    Provides Multiple Installation Options

    • Can be mounted to panel either horizontally or vertically – allows for extra room on panel
    • Display screens can be rotated to support vertical installation
    • Internally mounted I/O reduces mounting footprint