Description
Ring Type Current Transformers (Toroidal)
These kinds of current transformers are constructed in a range of burdens and accuracy classes for each transformer ratio (up to 6000 Amp), thereby enabling the designer to select a transformer suitable for measuring, protection and core balance applications.
The following information is required when ordering ring type measuring and protection current transformers according to IEC60044-1:
a- Transformer ratio
b- The VA burden
c- Class(measuring), class of accuracy and accuracy limit factor(ALF)
d- Minimum inner diameter (ID)
For core balance applications the following information is required:
a- Transformer ratio
b- Minimum inner diameter
For example (50/1; Cl. 3, 1VA, ID 130 mm)
