Abstract: For replacing position detecting switches in a breaker, a mechanical breaker switch is moved to permit removal of first and second position detecting switches, the first indicating whether the mechanical breaker switch is in a first position by transitioning between first and second states when disposed at or greater than a first threshold angle, the second indicating whether the mechanical breaker switch is in the second position by transitioning between first and second states when disposed at or less than a second threshold angle. The position detecting switches are removed and replaced with replacement position detecting switches. The first replacement switch is adjusted to transition between the first and second states at when disposed at or greater than the first threshold angle, and the second replacement switch is adjusted to transition between the first and second states at when disposed at or less than the second threshold angle.

Abstract: A portable test and control system for selectively testing and operating an electrically operated switch with at least one phase, the electrically operated switch designed to protect electrical circuit. The portable test and control system is adapted for simultaneously performing verification that the electrically operated switch is operating according to stored switch specifications and control of operation of the electrically operated switch by providing power directly to the electrically operated switch.