Solutions   for   Protecting   andManaging   the   Electrical   Network

CT RINGS

Current Transformers

To feed the earth unit of our protection relays, a large choice of CT rings is available, either open and closed type.


Moulded case current transformers for the measurement of AC currents up to 3000A, with inner diameters from 15 to 80 mm.
They are made of a non-flammable material and have heavy insulation.
They are equipped as standard with EA type mounting brackets.

Current transformers moulded in selfextinguishing resin for the measurement of AC currents from 50 to 60000A.
With inner diameters between 106 and 500 mm, these transformers are often used on bushings of power transformers or on generator bushing insulators.
Two versions, indoor or outdoor, are available. The outdoor version is equipped with a weatherproof terminal box fitted with 2 cable glands.

Customized solutions are also available, please contact us.

  Device Ratio Inner
Diameter
Description
TF 25/15 1/1500 25 mm Toroidal Current Transformer
TF 25/1 1/100 25 mm Toroidal Current Transformer
TF 50/15 1/1500 50 mm Toroidal Current Transformer
TF 50/1 1/100 50 mm Toroidal Current Transformer
TF 80/15
TF 80/1
1/1500
1/100
80 mm Toroidal Current Transformer
TF 145/15 1/1500 145 mm Toroidal Current Transformer
TF 145/1 1/100 145 mm Toroidal Current Transformer
TF 198/15 1/1500 198 mm Toroidal Current Transformer
TF 198/1 1/100 198 mm Toroidal Current Transformer
TF 245/15 1/1500 245 mm Toroidal Current Transformer
TF 245/1 1/100 245 mm Toroidal Current Transformer
TF 303/15
TF 303/1
1/1500
1/100
303 mm Toroidal Current Transformer
TF 450/15 1/1500 450 mm Toroidal Current Transformer
TO 105/15
TO 105/1
1/1500
1/100
105 mm Current Transformer split-core type
TO 125/15 1/1500 125 mm Current Transformer split-core type
TO 125/1 1/100 125 mm Current Transformer split-core type