Ana Maria Ribeiro Franco Head of The Power and Energy Laboratory

1. The Role of Scientific Metrology in Industrial Metrology Ana Maria Ribeiro Franco Head of The Power and Energy Laboratory

2. Traceability Chain Scientific Metrology Legal Metrology and Control Quality Industrial Metrology

3. INMETRO´S MISSION Its mission is to provide reliability to the Brazilian society measurements and products through metrology and conformity assessment, promoting harmonization of consumer relations, innovation and competitiveness of the country.

4. INTRODUCTION The Brazilian industrial sector represents 45.5% of the total electricity consumption in the country. This relevant value causes all sectors involved in the electricity area works with high quality technology services. The electric power distribution of good quality ensures reliable working of equipment and processes. It also describes the introduction of this group to the reality of electrical energy meters, current and potential transformers factories, engaging themselves in development of regulations, resulting in the standardization of metrological procedures.

5. Main Elements of Inmetro´s Structure

6. Development and evaluation of different regulation and standards To ensure the credibility of measurement result in legal metrology are necessary the regulations, the technical means and the operational processes. The metrological requirements specify some performance tests and the maximum permissible errors to a given instrument's accuracy class, under nominal operational conditions, influence factors (influence of quantities and time) and disturbances (ex. electromagnetic compatibility).

7. Auditing manufactures and accredited laboratories The accreditation carried out by the General Coordination for Accreditation (Cgcre) is voluntary and represents the formal recognition of the competence of a laboratory or body to perform conformity assessment tasks according to established requirements. The accreditation of laboratories by Cgcre is performed by the Laboratory Accreditation Division (Dicla) that carries out activities related to the granting and maintenance of accreditation, in accordance with the requirements of the standard ABNT NBR ISO/IEC 17025.

8. Developing Standards and Regulations The main objective of the Quality Department of Inmetro is to provide companies of the productive sector, the regulating bodies and the consumers of Conformity Assessment programs, the rules and technical regulations, aiming to seek the increase of competitiveness, fair competition and the protection and safety of the ordinary citizen and of the environment.

9. Comparisons in the quantities The main goal of the comparison program between laboratories in Brazil is to evaluate the results obtained in the electrical energy and high voltage measurements, among all participants in relation to a reference, in this case, the Brazilian Metrology Institute (Inmetro). With the objective of evaluating the energy distributors, energy generators, energy transmitters and accredited laboratories, a coordinator promotes the Comparison Program between laboratories that disseminate the Wh and High Voltage units.

10. Conclusion • The laboratory tries to show to the technician that everything that involves instruments, measurement and quality is taken account in the final product. • Finally, the laboratories should be directly involved and aligned with the tests at the factory, because the knowledge from the factory to the laboratory also makes the development of tests more consistent with the manufacturing reality, not forgetting the quality of the product. • This is not a recipe, but has been working for Power and Energy Laboratory and Tansformer Laboratory of Inmetro.

11. Thank you! lapen@inmetro.gov.br 24-29