Drive space for multipole switching unit - has microprocessor control of electromagnet to regulate speed of motion of switch.

摘要

A three pole switch for high or mid range voltages (1) has the switching action determined by an electromagnet (6) and an energy storage device (3) coupled to a link (2). The storage device can be in the form of a spring. The electromagnet is operated by a microprocessor to adopt the closed switch mode. When the link is released the contacts open using the spring energy. The electromagnet is controlled by the micro processor to five controlled braking a specific motion characteristic. ADVANTAGE - Provides non mechanical force control.