Toroidal tranformers for medium voltage

We develops, manufactures and sells a range of toroidal transformers

Our goal is

“to distinguish ourselves generate
solutions and meet the expectations of an increasingly demanding market”

  • The series with modularity in height fully provides innovative and effective solutions.
  • Designed with the aim to offer a product that meets the most various requests of appropriate size and weight.
  • Born to be free from the rigid constraints of the conventional molded transformers.
trasformatore-toroidale

GENERALITY

RATED BURDEN OF COPPER WIRES BETWEEN INSTRUMENT AND CT

Cable section
mm2

Secondary 5A

Secondary 1A

Power (two poles) - Distance

1m

2m 4m 6m 8m 10m 10m 20m 40m 60m 80m 100m
1             0,36 0,71 1,43 2,14 2,85 3,57
1,5 0,58 1,15 2,31 3,46 4,62 5,77 0,23 0,46 0,92 1,39 1,85 2,31
2,5 0,36 0,71 1,43 2,14 2,86 3,57 0,14 0,29 0,57 0,86 1,14 1,43
4 0,22 0,45 0,89 1,34 1,79 2,24 0,09 0,18 0,36 0,54 0,71 0,89
6 0,15 0,3 0,6 0,89 1,19 1,49 0,06 0,12 0,24 0,36 0,48 0,6
10 0,09 0,18 0,36 0,54 0,71 0,89 0,04 0,07 0,14 0,21 0,29 0,36

ACCURACY CLASS

Accuracy class ± Percentage current error at percentage
of rated current shown below
± Phase displacement at percentage of rated current
shown below

MINUTES
5 20 100 120 5 20 100 120
0,1 0,4 0,2 0,1 0,1 15 8 5 5
0,2 0,75 0,35 0,2 0,2 30 15 10 10
0,5 1,5 0,75 0,5 0,5 90 45 30 30
1 3 1,5 1 1 180 90 60 60
  1 5 20 100 120 1 5 20 100 120
0,2S 0,75 0,35 0,2 0,2 0,2 30 15 10 10 10
0,5S 1,5 0,75 0,5 0,5 0,5 90 45 30 30 30
Accuracy class ± Percentage current error at percentage
of rated current shown below
50 120
3 3 3
5 5 5

PROTECTIVE CURRENT TRANSFORMERS

Accuracy class Current error at rated primary current %
  MINUTES
5P ± 1 ± 60
10P ± 3 -
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