Français
3. Non-magnetic current transformer. Rogowski torus
The Rogowski toroid, or coil, takes the form of a conductive winding wound on a toroidal mandrel made of a non-ferromagnetic material, giving it excellent linearity characteristics due to the absence of saturation.
When parasitic capacitances are negligible, the equivalent diagram in figure 11 can be used. The Rogowski coil can be used in two different ways.
3.1 Use for high-frequency current measurement
The Rogowski coil is used as a conventional current transformer, i.e. loaded by a very low-value resistor R (figure 12 ).
...
The Ultimate Scientific and Technical Reference
This article is included in
Electricity networks and applications
This offer includes:
Knowledge Base
Updated and enriched with articles validated by our scientific committees
Services
A set of exclusive tools to complement the resources
Practical Path
Operational and didactic, to guarantee the acquisition of transversal skills
Doc & Quiz
Interactive articles with quizzes, for constructive reading
Non-magnetic current transformer. Rogowski torus
Current comparators
Bibliography
Conventional instrument transformers
Standardization
France (UTE)
French Standards Association (AFNOR)
- Transformateurs de tension monophasés : caractéristiques. - NF C 42-501 - 3-73
- Transformateurs de courant : caractéristiques. - NF C 42-502 - 2-74
Germany (Federal Republic of)
Verband Deutscher Elektrotechniker eV (VDE)
- Specifications for instrument transformers: 1re, 2nd and 3rd parts (Modif. 1 to 2-78). - 0414 -...
The Ultimate Scientific and Technical Reference
