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Nexus® 1252 Energy and Power Quality Meter

The Nexus® 1252 energy and power quality meter is ideal for high performance power metering and power quality analysis. Utilizing auto-calibrating metrology, the meter is highly stable and accurate. It provides a highly comprehensive circuit analysis and is ideal when critical information and reliability is paramount.

High Performance Revenue Metering
Ideal for Critical Metering Applications

  • 0.06% revenue grade metering accuracy.
  • Precision auto-calibrating metrology with temperature compensation.
  • Transformer Line Loss and CT/PT compensation.
  • Time of Use programming.
  • Max/min for all parameters and coincidental readings of watts and VARs.
Nexus<span class='regmark'>®</span> 1252 Energy and Power Quality Meter

Advanced Power Quality Analyzer
Perform Detailed Power Quality Analysis

  • Record waveforms on fault and voltage events and input status changes at up to 512 samples per cycle.
  • Record subcycle transients.
  • Measure and record harmonic magnitudes to the 255th order.
  • Perform phasor analysis.
  • ITIC/CBEMA log plotting.
  • EN 50160 /IEC 61000-4-15 Flicker and Compliance Monitoring.
Nexus<span class='regmark'>®</span> 1252 Energy and Power Quality Meter

128th Order Real Time Harmonic Spectrum

Nexus<span class='regmark'>®</span> 1252 Energy and Power Quality Meter

High Resolution Waveform Recording

Nexus<span class='regmark'>®</span> 1252 Energy and Power Quality Meter

Phasor Analysis

Nexus<span class='regmark'>®</span> 1252 Energy and Power Quality Meter

ITIC CBEMA Plotting Showing Damaging Power Quality Events

Extensive Communication

  • Four isolated RS485 high-speed communication ports.
  • Two RS485 ports can act as Modbus clients to I/O modules.
  • One RS485 port can be used for RS232 communication.
  • Onboard Ethernet connectivity.
  • Modbus and DNP3 Level 2 Plus protocol support.
Nexus<span class='regmark'>®</span> 1252 Energy and Power Quality Meter

Extensive I/O Expansion
Acts as an RTU with I/O and Control

  • Status inputs support load aggregation/universal metering.
  • Relay control for capacitor control, load shedding, and automatic transfer schemes.
    • Limits and logic to trigger operations.
  • ElectroLogic Relay Control provides graphical programming of relays.
  • Response time is typically less than 200 ms per I/O module.
  • Lower cost than traditional RTUs.
Nexus<span class='regmark'>®</span> 1252 Energy and Power Quality Meter

Programming Relay Output Settings

Nexus<span class='regmark'>®</span> 1252 Energy and Power Quality Meter

Graphical 3 Tier Programming Interface

Advanced Logging
Multiple Programmable Memory Logs

  • Two historical logs of 64+ parameters each.
  • Limit Alarms log.
  • Event triggered waveform recording log.
  • ITIC/CBEMA log.
  • Relay output log.
  • Input status log.
Nexus<span class='regmark'>®</span> 1252 Energy and Power Quality Meter

Total Web Solutions
Meter Data Integration with the Web

  • Provides real time data on the web.
  • Fully customizable webpage development.
  • Multiple meter hosting on one webpage.
  • IT department friendly.
  • Instant alarm emails directly from the meter.
Nexus<span class='regmark'>®</span> 1252 Energy and Power Quality Meter

Applications
Designed for Utilities, Industrial Users, and Critical Power Applications

  • For energy providers –
    • Smart grid and substation automation.
    • Transformer and circuit breaker monitoring.
    • Increase power distribution reliability.
    • Shed or shift loads quickly.
    • Heighten response time to PQ events.
Nexus<span class='regmark'>®</span> 1252 Energy and Power Quality Meter
  • For energy consumers –
    • Real time PQ monitoring and analysis.
    • Reduce costs, conserve energy, and improve operational efficiency.
    • Increase productivity and reduce downtime.
    • Avoid high utility penalties for exceeding usage.
    • Optimize loads/extend equipment life.
Nexus<span class='regmark'>®</span> 1252 Energy and Power Quality Meter

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