SENSOR FOR MEASURING CURRENT OF THE ROGOWSKI-TORUS TYPE, PROTECTING AND MEASURING DEVICE AND ELECTRIC CIRCUIT BREAKER INCLUDING SUCH A SENSOR

A sensor for measuring current of the Rogowski-torus type including a carrier made of a magnetic materials and a secondary winding wound on the carrier in order to deliver an electrical signal representative of a current flowing in a conductor passing through the interior of the torus. The carrier is made essentially of a moulded rigid plastic material and includes at least one exterior recess distributed over the length of the body of the carrier. The recess includes at least two grooves that are separated by a partition The protecting and measuring device and the electric circuit breaker include such a current sensor. 罗氏线圈型的电流测量传感器、保护和测量装置及包括传感器的断路器，传感器包括由非磁材料制成的载体(1)和缠绕在所述载体(1)上的二次绕组(5)，以输送表示在导电中流动穿过线圈内部的电信号。载体(1)基本上由模制的刚性塑料材料制成，并包括分布在载体本体的长度上的至少个外部凹槽(2，3)。凹槽(2)包括由隔壁(4)分隔的至少两个沟槽(3)。保护和测量装置以及断路器包括这种电流传感器。