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Grid Meters

Landis+Gyr E880

The E880 is a high-precision electricity meter designed for transmission networks and digital high-voltage substations with non-conventional instrument transformers (NCIT) according to IEC 61850 standard. The meter uses digital sample values of phase voltages and phase currents as per IEC 61850-9-2 LE for billing and diagnostics. The merging unit’s current and voltage outputs enter the… Read more

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Description:

Metering innovation for digital substations with non-conventional instrument transformers

The E880 is a high-precision electricity meter designed for transmission networks and digital high-voltage substations with non-conventional instrument transformers (NCIT) according to IEC 61850 standard. The meter uses digital sample values of phase voltages and phase currents as per IEC 61850-9-2 LE for billing and diagnostics. The merging unit’s current and voltage outputs enter the E880 grid meter as a single data stream. The input for sampled values is adaptable to every substation environment either using optical fiber (100 base FX) or Ethernet with RJ45 (10 base TX), and covers different customer needs. E880 delivers operational efficiency thanks to its full compatibility with the customer’s existing meter reading system and a comprehensive, future-proof functionality set, including modular multi-channel communication platform.

Based on the proven E850 technology, the E880 grid meter offers top accuracy and long-term stability in energy measurement under all operating conditions. The highest metering accuracy generates savings for the customers and the precision is guaranteed even at the lowest load of 2% in a single-phase operation, unbalanced or cos φ below 1. The E880 powerful measurement system provides sufficient resolution for measurement periods under 15 minutes (1 to 5 minutes), accurate metering when energy direction changes and very low sensitivity to temperature changes.

Easy to handle rack mount design enables energy companies to save installation costs and space.

The E880 grid meter is available in one main version:

  • E880 f9 rack mounted with Essailec® connector
Features
  • Accuracy class 0.2S for active energy and 0.5S / 1 for reactive energy
  • Values sampled 80 times per cycle (4000 samples per second at 50Hz, 4800 samples per second at 60Hz)
  • 8-digit liquid crystal display (LCD) for local reading of data
  • Exchangeable communication modules (RS 232 / RS 485 / Ethernet / GSM / GRPS / UMTS (3G))
  • Integrated optical interface and RS485 serial interface with DLMS protocol
  • Communication with several third-party suppliers
  • Up to 8 transmitting contacts (for energy flow, load supervision (Pmax, Qmax), capture period)
  • 4-quadrant measurement (+P -P, +Q -Q, Q1..Q4)
  • Measurement of instantaneous values of phase voltages and currents
  • Phase angle measurement and detection of direction of rotating field
  • Monitoring of instantaneous values of voltage (unbalance, over/undervoltage, outage) and current (unbalance, overcurrent)
  • Voltage dip table
  • Tariff control
  • Time-of-use (TOU)
  • Load profiles
  • Daily snapshot
  • Stored billing value profile
  • Harmonics and total harmonic distortion (THD) monitoring
  • Line and transformer’s loss measurement
  • Total losses of active and reactive power
  • Overload supervision of the line
  • Single phase energy measurement
  • Average demand, maximum and cumulated maximum demand
  • Apparent energy measurement
  • Power factor monitoring
  • Frequency monitoring
  • Bypass feeder operation
  • Event logs
Availability
  • Asia-Pacific
  • Europe, the Middle East and Africa