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Nexus® 1500 Güç Kalite Ölçüm Cihazı


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 subcycle 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.
  • Digital firmware signature with 512-bit encryption and customizable keys.
  • 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.
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