Motor operator system for a power switch with travel set with three positions for ground or double-throw type switch

摘要

A motor operator system for a power switch which allows electrical motor operation to the GROUND POSITION via TRAVEL SET electronics to ensure personnel safety by accomplishing travel setting without a person entering an underground vault but also allows operation to the ground position manually if so desired. The motor operator system of the present invention includes a position switch panel that allows a three position set travel with travel adjust function. The three positions are CLOSE, OPEN, GROUND, or, alternatively, CLOSE, OPEN, CLOSE.

主权项

1. A power switch motor operator system for a power switch with ground contact position or of the double-throw type comprising:
a motor with a motor shaft arranged for mechanical coupling to a movable contact of a power switch; a power supply and control assembly electrically connected to the motor for operation of the motor; a potentiometer arranged to develop a voltage indicating the rotary position of the motor shaft and to communicate a signal representing that voltage to a microcontroller including a memory element; a position switch panel that electrically communicates with the power supply and control assembly and includes switches for setting and adjusting travel limits for the motor shaft to a power switch first CLOSE position, a power switch OPEN position, and a power switch GROUND position or second CLOSE position via the microcontroller using the signal from the potentiometer without requiring access to the motor which may be located in a switch vault; wherein the position switch panel includes switches for selectively directing motor and power switch movement in a power switch first CLOSE direction, directing movement in a power switch OPEN direction, directing movement in a power switch GROUND direction or second CLOSE direction, setting the power switch first CLOSE position in a memory element and setting the power switch OPEN position in the memory element and setting the power switch GROUND position or the power switch second CLOSE position in the memory element.