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Electricity Meters

E750 – Generation 2

The E750 meter, model A2E3, represents the second generation of electronic electricity meters. It is recommended for industrial customers, large commercial installations, and boundary metering applications. This generation introduces new capabilities, including support for up to four simultaneous and independent communication interfaces, both integrated and modular, providing increased flexibility for complex metering environments.

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Description

The E750 meter, model A2E3, represents the second generation of electronic electricity meters. It is recommended for industrial customers, large commercial installations, and boundary metering applications.

This generation introduces new capabilities, including support for up to four simultaneous and independent communication interfaces, both integrated and modular, an expanded number of mass memory channels for analyzing consumption characteristics, event monitors to track operating conditions, power quality indicators, and the ability to reset records without requiring a reload of the operational firmware.

Together, these capabilities provide greater flexibility in billing data management, meter usage monitoring, and interface configuration based on operational requirements.

In addition to traditional metering applications and use in outdoor medium-voltage systems, the meter can also be deployed in smart grid environments, using Landis+Gyr RF Mesh communication.

The second-generation E750 operates using a digital sampling principle with a rate of 256 samples per cycle and 24-bit analog-to-digital conversion. The meter also features a graphical display, enabling more information to be shown on a single screen and allowing forward and backward screen navigation, streamlining local meter reading operations.

This product benefits from Brazil’s Information Technology Law, in accordance with Laws 8.248/91, 10.176/01, 11.077/04, and 13.023/14.

  • General Features

    • Energy and demand metering, active and reactive – four-quadrant

    • Multi-voltage capability

    • Class D accuracy

    • Multi-tariff support for up to four tariff periods

    • Fine clock adjustment up to 99 seconds

    • Operational firmware updates without loss of stored data, locally or remotely

    • Logging of unauthorized intervention events, such as cover opening

    • Logging of network events (voltage, current, power factor), with 21 event types stored in a circular memory of the last 145 events

    • Secure logging of operational events, including legally relevant parameter changes and firmware loads, stored in a circular memory of the last 2,500 events

    • Record retention in non-volatile memory, eliminating the need for a battery

    • Seven user password levels

    • User output interface standard or extended (+SU / -SU)

    • 14-character alphanumeric installation code

    • Front magnetic optical port, compliant with ABNT standards, for local communication, protected by a sealable cover

    • Independent front LEDs for active and reactive energy calibration

    • Front buttons, including two for display navigation and one for demand reset (billing closure), the latter protected by a sealable cover

    • Mechanical design resistant to mechanical shock and ultraviolet radiation

    Measured Quantities

    • Total and time-of-use active energy and demand

    • Total and time-of-use reactive energy and demand, inductive and capacitive

    • UFER and DMCR

    • Fiscal page and standard instantaneous values per ABNT

    Standards Complied With

    • ABNT: NBR 14519, NBR 14520, and NBR 14522

    • INMETRO: RTM 587/2012, RTM 586/2012, and RTM 520/2014

    If you want, I can:

    • Condense this into a one-page technical summary

    • Normalize terminology across E750 / E650 / E550 specs

    • Reformat it for AEM accordion or tab components

    • Active and reactive energy metering, with or without consideration of harmonic influence

    • Ratcheting (catraca) or unidirectional energy recording mode

    • Mass memory with 24, 36, or 48 channels, storing data at 5-minute intervals for 45 days

    • Redundant auxiliary power supply

    • Integrated communication interfaces: RS232, RS485, Ethernet, Bluetooth, meter-to-meter synchronization, and fiber optic interface for external display

    • Modular communication interface: Landis+Gyr RF Mesh

    • Internal clock synchronization interface via GPS signal (IS-GPS-200E)

    • Power quality measurement in sampled mode (DRC/DRP and VTCD)

    • Base and cover chemically fused for enhanced integrity

    • Tin-plated terminals

    • Brazil

Related Products

Knowledge And Resources

E750 G2 Fact Sheet
PDF · 5 MB

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