How to solve the toroidal transformer energized instant leakage switch tripping
Friends, you are in the opening of the toroidal transformer, due to your transformer capacity is too large, the power-on current impact is very large, resulting in an analog short-circuit phenomenon, that is, generating inductive harmonics, the inrush current is not sufficiently cathartic and feedback to your leakage switch on it, then your leakage switch protection circuit detects the short-circuit phenomenon resulting in tripping ah, you first of all to eliminate the harmonics, eliminate the analog short-circuit phenomenon in order to control the switch does not trip. The first thing you can do to eliminate harmonics, eliminate the analog short-circuit phenomenon in order to control the switch does not trip, there is a program you do this, you input toroidal transformer on the firewire series connection of a 10-ampere or so reactor on the solution, you may wish to refer to reference.