H01H35/027

Method for replacement of mercury switches in a switchgear with alternative switch types
10804057 · 2020-10-13 · ·

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.

METHOD FOR REPLACEMENT OF MERCURY SWITCHES IN A SWITCHGEAR WITH ALTERNATIVE SWITCH TYPES
20190221387 · 2019-07-18 ·

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.