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  • multi-function watt-hour meter
    MAJOR FUNCTIONS
    • Time-sharing measurement of positive and negative active power, four-quadrant reactive power, combination 1 and combination 2 reactive power, and any combination of four-quadrant reactive power can be set to measure the phase-sharing positive and negative active power and inductive reactive power.
    • Measure the voltage and current of each phase/element, and measure the active power, reactive power, power factor and grid frequency of the total and each phase/element
    • 8 Rate (configurable), two sets of time periods for master and slave, double clock backup, 12 month history (configurable)
    • Eight types of historical data records (configurable), including voltage loss, total voltage loss, current loss, total current loss, and voltage qualification rate, with a capacity of 4Mbytes
    • Dual backup data storage, with self-check and error correction functions, with internal card error, clock error, voltage reverse phase sequence, loss of voltage, overvoltage, loss of current, and battery undervoltage fault alarm functions.
    • It has the detection function of opening the cover to prevent stealing electricity.
    • After power failure, you can wake up the display by pressing the key, and after waking up, you can read the meter through the LCD display.
    • Dual redundant wide range power supply, AC and DC universal;
    • Record a variety of frozen data to form a graphical analysis of power consumption anomalies consisting of event records, load curves and frozen data;
    • Three-channel optocoupler null node can choose to output single or three-in-one second pulse, demand period or slip time, and time period switching.
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  • Features
      FEATURES
      • The sampling value measurement input interface meets the requirements of ST/SC optical fiber interface of IEEE802.3u and 100Base-FX;
      • Support sampling value input in accordance with IEC 60044-8, IEC61850-9-2, IEC61850-9-2LE standards and specifications;
      • IEC61850-9-2, IEC61850-9-2LE sampling value protocol adaptive metering, maximum support for three combined unit metering;
      • Dual redundant wide range power supply;
      • Dot matrix LCD display, intuitive, rich and flexible display content;
      • Password protection setting of ammeter parameters;
      • 2-way standard RS-485 and 1-way far-infrared communication interface;
      • The optional meter reading interface adopts the RJ45 Ethernet interface of IEEE802.3u, which supports IEC61850-8-1 standard specifications;
      • Support the load curve, electricity freezing, and event log file service reporting functions.
  • Specifications
    TECHNICAL PARAMETER

    Technical parameter items Content
    technical standard GB/T17215.303-2013, DL/T645-2007，DL/T614-2007,Q/GDW1118-2013,GB/T17215.322-2008,GB/T17215.323-2008.
    Data service agreement IEC61850-9-2/LE, IEC61850-8-1, GMRP and other protocols, RS485 interface supports DL/T645-2007
    Accuracy level Active 0.2S level, 0.5S level, reactive 1 level
    Physical layer interface type Optical interface: ST/SC (optical wavelength 1310nm, 100M)
    Overall power consumption <10W；15VA
    Reference frequency 50Hz-60Hz
    Working power supply mode Dual redundant external power supply (either one or two can be connected at the same time)
    Power supply voltage range (220V AC ± 20%), (110V or 220V DC ± 20%)
    Measurement system Three-phase three-wire, three-phase four-wire
    working temperature -25℃～+55℃
    Limiting operating temperature -25℃～+65℃
    Relative humidity <95%(No condensation)
    Overall dimension long × wide × thick: 290mm×170mm×85mm
    Net weight About 2.4Kg
  • Dimensions
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