Testing Revenue and Boundary Meters

High Accuracy in Metering Systems

Electric energy measurement is one of the fundamental pillars for the efficient, safe, and fair operation of power systems. In this context, boundary meters or revenue meters play a strategic role: they are responsible for accurately recording energy consumption between market agents such as utilities, free consumers, generators, and traders. Thus, any inaccuracy in this process can lead to significant financial losses or non-compliance with regulatory criteria.

These metering systems are composed of instrument transformers—including current transformers (CTs) and potential transformers (PTs)—associated with digital or electromechanical energy meters. Therefore, the reliability of the entire metering chain is directly linked to the quality of the equipment used and, especially, to the accuracy of the meters.

Conprove, aligned with the requirements of both national and international electric sectors, has developed a complete line of high-tech solutions for testing and calibrating meters, ensuring maximum reliability, compliance with technical standards, and ease of operation.

Why Test Meters?

Regular testing and calibration of meters are essential to ensure that the measured values remain within the permissible error limits established by technical standards. These tests help detect deviations, assess compliance with regulatory standards, and identify the need for adjustments or replacement of the equipment.

Additionally, testing ensures result traceability and allows utilities and energy companies to have transparency in commercial energy transactions, as well as legal security during inspections and audits.

Conprove Solutions for Meter Testing

Conprove offers a robust line of universal testing equipment capable of performing complete and reliable tests on energy meters, including:

CE-6710: Portable instrument, ideal for both field and laboratory use;
CE-6710: Universal multifunction tester with 6 current channels and 4 voltage channels;
CE-OSU1: Pulse reader for meters with optical and electrical output;
CTC – Conprove Test Center: Software platform that integrates all features of Conprove equipment, making testing easier with a user-friendly interface and graphical analysis tools.

Metrological Accuracy and Test Automation

Effective testing depends on the accuracy of the current and voltage signals used to simulate real operating conditions. Conprove equipment offers highly stable signal sources with low harmonic distortion, ensuring the faithful reproduction of expected operating conditions in the field.

With the Conprove Test Center (CTC), users can automate the entire test routine, define sequences according to technical standards, and generate complete reports quickly and easily. The user-friendly interface makes operation simple for both specialists and field technicians.

Compliance with Recognized Technical Standards

Conprove systems comply with the main technical standards applicable to meter testing, including:

INMETRO 587 – Classes A, B, C, and D
IEC 6876 – Classes 0.2S and 0.5S
IEC 1036 – Classes 1 and 2
IEC 521 – Classes 0.5S, 1, and 2

These standards define the permissible error limits, test conditions, verification methods, and acceptance criteria. Using Conprove tools, it is possible to ensure that meters are within the required tolerances, reinforcing the reliability of the measurement process.