METHOD OF ADJUSTING CURRENT PROTECTION ON HERMETIC CONTACTS Russian patent published in 2017 - IPC H02H3/08 

FIELD: electricity.

SUBSTANCE: method allows to adjust precisely the current protection on hermetic contacts by determining in the reference point A the true intensity N_Atrue, which is equal to the product of the calculated strength I_NT in the reference point A by the index, which in turn is determined from the ratio of the measured by the second inductance coil EMF E₁ in the reference point A to the calculated EMF E₂ on the outputs of the second inductance coil, and also due to the choice of the hermetic contact with operating ampere-turns F_op, corresponding to the true intensity N_Atrue in the reference point A, as well as checking the correct installation of the hermetic contact inside the second inductance coil.

EFFECT: increase the accuracy of current protection adjusting.

1 dwg