Adjustable mutual inductor

The utility model discloses an adjustable mutual inductor which comprises a base and an adjusting mechanism. A protection box is arranged in the middle of the upper end of the base, a mounting seat is arranged in the middle of the upper end of the protection box, a primary bus through hole is formed in the middle of the front end of the protection box, an iron core is arranged in the middle of the rear wall of the protection box, and a coil is wound on the lower side outside the iron core; the adjusting mechanism is arranged in the protection box, and the upper end of the adjusting mechanism is in contact with the outer cambered surface of the coil; the adjustable mutual inductor further comprises wiring terminal heads, the wiring terminal heads are arranged on the left side and the right side of the upper end of the installation base respectively, the input end of the wiring terminal head on the left side is electrically connected with an external power source, and the adjustable mutual inductor can adjust t