Current transformer type and station three phase electric relates to such a current transformer

摘要

The current transformer (10) of the three-phase type for electrical equipment with high or medium voltage comprises - three current conductors (22) centered in the tubular envelopes (18) which are parallel to connecting two end plates (12) provided with three holes, - of the magnetic cores (24), surrounding the tubular envelopes and carrying at least one secondary winding (26). the tubular envelopes are arranged in a triangle so that two magnetic cores adjacent delimit between them a space in the form of a wedge (30). the transformer comprises a bent metal sheet (32), arranged around cores (24), connected to the end plates (12), and having the opposite edges (360, 362) which define a gap (39) at intervals (39) is located facing a space in the form of a wedge (30) formed between two adjacent cores, in which are contained the output terminals (28) of the secondary windings.