US 5,804,930 A · Motor operator for a power line phase switch

Abstract

A motor operator is configured to provide local and remote operation of a power line phase switch. The motor operator has its components individually enclosed in a component enclosure and further enclosed in a main enclosure, allowing isolation and protection of the components from the environment and operators. A gear box includes a worm gear reducer submersed in oil providing a no maintenance gear train that makes continuous braking unnecessary by virtue of the inherently self-locking nature of the worm gear. The motor operator also includes a plurality of limit and auxiliary switches providing local and remote indication of switch position. The switches are each independently adjustable using cam adjustment collars. The overall configuration of the motor operator provides safe, reliable and cost effective phase switch operation.

Claims18

Dependent claims

A motor operator for a power line phase switch, comprising:

a main enclosure;
a power source unit disposed within said enclosure;
a motor coupled with said power source unit, said motor being disposed within said enclosure;
a gear box housing a reducing gear train coupled to said motor, said gear box being disposed within said enclosure, wherein said gear train includes an output shaft that is adapted to engage a contact blade of the phase switch;
and
a plurality of auxiliary and limit switches communicating with said gear train, said auxiliary and limit switches being disposed within said enclosure.

3 more elements

Dependencies are inferred from the claim text.

Motor operator for a power line phase switch

Life of this patent

Motor operator for a power line phase switch

Life of this patent

Abstract

Claims18