IN IN1043MU2014A
Disclosed is a Rogowski coil with variable cross-section core in circuit breakers. The present invention provides a Rogowski (current measuring coil) with variable cross section core which provides enhanced secondary output at reduced volume. The present invention describes a Rogowski coil with variable cross-section core which provides enhanced output which is advantageous at low current ratings or space constraint issues, and less sensitive to external disturbances. In one implementation, a current sensing coil, in particular transformer, conductor and a circuit breaker trip unit, characterized in that former (1) with a variable cross-section core; and at least one winding (2) is formed with a start point (3) and an end point (4) of said at least one winding; wherein said at least one winding (2) is winded on core of said former (1).
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