Differential instrument transformers

These ring type current transformers are available for indoor (ORX) or outdoor use (OREX). They have been designed to meet the requirements for measuring:
- line currents
- zero-sequence currents in the neutral of power transformers
- earth fault currents in power transformers.

The secondary terminals are accessible, either directly in the case of indoor equipment (ORX), or through a watertight terminal box in the case of outdoor application (OREX). Several types of terminal boxes are available depending on the required characteristics.

Ces transformateurs de mesure sont en résine époxy moulée autoextinguible et possèdent de série un isolement renforcé.

Ils sont équipés d’un capot étanche muni de 2 presse étoupes. Cette gamme est conforme aux exigences des normes EN 50014 et EN 50019 “sécurité augmentée”.

English version coming soon!

The change to newer, faster and more selective protective system makes it necessary to replace existing current transformers with different output, class, ratio, number of secondaries to suit the needs of the new protection.

The best solution is to use split-core current transformers on insulated cables or outside single phase metalclad units. This solution is very economical because:

- It is not necessary to dismantle and remake the cable sealing ends on the metalclad units.

- There is no need to recommission and test the main equipment.

- It reduces the risk of damage and the length of outages at reduced costs.

These current transformers are avalaible for indoor use (CRF) or outdoor use (CRFE).

Outdoor current transformers for the measurement of AC currents up to 4000A.

They are moulded in selfextinguishing resin and have heavy insulation as standard. They are equipped with a weatherproof terminal box fitted with 2 cable glands.

This range complies with the European standards EN 50014 and 50019 «enhanced safety».

The change to newer, faster and more selective protective system makes it necessary to replace existing current transformers with different output, class, ratio, number of secondaries to suit the needs of the new protection.

The best solution is to use split-core current transformers on insulated cables or outside single phase metalclad units. This solution is very economical because:

- It is not necessary to dismantle and remake the cable sealing ends on the metalclad units.

- There is no need to recommission and test the main equipment.

- It reduces the risk of damage and the length of outages at reduced costs.

These current transformers are avalaible for indoor use (CR) or outdoor use (CRE).

This range of voltage dividers is for cheking the presence of voltage on the busbar. The neon lamp is not supplied with the voltage divider.