Legacy PQ

High Precision Meters – Accuracy Class 0.2s

The Legacy PQ sets a new benchmark in power quality and metering accuracy, going beyond the stringent requirements of the IEC 62053-22:2003 standard for 0.1 S accuracy class. Such precision makes it an invaluable tool for applications where accuracy is non-negotiable, such as electricity generation, grid interchanges, high-voltage transmission systems, distribution networks, and industrial power monitoring.

Its superior accuracy ensures reliable billing, energy audits, and compliance with regulatory requirements, while also enabling utilities and industries to optimize their energy management strategies. Additionally, its adaptability to dynamic load conditions and robust design makes it ideal for modern power systems, ensuring that it remains a leading choice for high-accuracy metering in both conventional and advanced grid environments. Whether used in power plants, substations, or industrial setups, the Legacy PQ delivers unmatched performance, making it a future-ready solution for critical energy applications.

Features & Benefits

IDIS interoperability
Full Two-way communications
Modular, field replaceable Plug & Play communications to enable AMR/AMI including Cellular, 4G, Power Line Carrier, RF Mesh or Ethernet.
Ease of Installation
Import / Export measurements for advanced co-generation applications
Dual Battery Design
Highly configurable load profile, time of use, demand metering
The advanced measurement capabilities support detailed power quality monitoring, enabling better decision-making for energy efficiency and grid stability.
With its robust features and adaptability to modern power systems, it ensures longevity and reliability, making it a sustainable investment for the future.

Ideal for revenue and power quality monitoring in applications such as of utility substations, advanced industrial manufacturing, datacenters and hospitals with high resolution transient recording (up to 50Mhz) and high accuracy 0.06% Watt/Hr energy metering with demand and time of use capture. The meter’s capability for complex measurements is ideal for large commercial, industrial, and utility power exchange points.

Classical Metering Applications

Legacy PQ meters include all the features needed for metering points where the customer and utility have a traditional contract – multi-energy measurement, demand calculation, multi-rate charges, etc. The meters fully comply with IEC standards.

Power quality studies/alarming/event capture for utility or industrial event investigation / reconciliation, ensuring uptime and predictive maintenance for critical power quality sensitive assets (Utility substation, Data Centers, Manufacturing, Hospitals)
Substation class energy and power billing with 0.06% accuracy
Control of external devices using I/Os
Alarm and event notification over the web, email, pager or telephone

A flexible architecture and superior meter features combined with state of the art programming and data retrieval software make the Legacy PQ the meter of choice for the deregulated market place.

The Legacy smart meters support modular, field replaceable communications to facilitate wide area network communications. Designed specifically to accommodate the varying types of Smart Grid communications technology, the Legacy communications interface supports a broad range of communications options including GPRS, 4G, PLC, RF Mesh and Ethernet.

The communications interface port is common between all legacy variants, allowing a single communications module to suit different meter models. Industry-standard serial interfaces are also available to support connectivity to standalone or multi-drop communications solutions. Direct connect Legacy meters also support built-in power line connectivity to facilitate options such as PLC, DLC, Home Plug technologies.

Success of an AMI system would depend on the introduction and deployment of not only the metering infrastructure and communication technologies to capture and monitor power consumption data, but also the integration with existing operational and enterprise systems so that outage, billing, meter management and business functions of an electric utility could make use of large volumes of more descriptive data being captured and processed in 30 minute rather than one month intervals.

The Legacy PQ meters can be integrated with a variety of smart Grid equipment. Our Meter Data Management solution Cube ESEP10 is a suite of software applications and technology that serves as a robust springboard to optimize utility operational systems outside of traditional billing, such as, coordinated load control, load shedding and load deferral.