2. Measurement methods and instruments
Electric current can be measured by inserting a suitable device, an ammeter, in series with the circuit, or by applying a transformation using a current sensor (shunt, Hall-effect sensor, inductive sensor, current transformer).
Figure 5 illustrates the different measurement methods discussed in this chapter.
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Bibliography
- (1) - DC GRIDS - Réseaux CC 20NRM03. - (2023). Disponible en ligne https://dc-grids.nl/
- (2) - IEC JWG 9 LVDC distribution. - Disponible en ligne
Standards and norms
- Instrument transformers – Part 1: General requirements. - NF EN 61869-1 - Décembre 2009
- Instrument transformers – Part 2: Additional requirements for current transformers. - NF EN 61869-2 - Mai 2013
- High-intensity testing techniques – Definitions and requirements for test currents and measuring systems. - NF EN 62475 - Mars 2011
Websites
BIPM – The International System of Units – 9th edition. Appendix 2 – Practical realization of the main units
https://www.bipm.org/fr/publications/si-brochure
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