2results about How to "Low skill level" patented technology

The invention relates to the technical field of power system high-voltage switchgear control. The invention provides a GIS high-voltage circuit breaker emergency opening method and system based on three-phase linkage. The method comprises the following steps: collecting a direct-current control power supply state and a three-phase circuit breaker operation state signal, and judging a direct-current control power supply power loss and electrical opening failure fault through a fault recognition model; generating a three-phase cooperative opening instruction containing a synchronous time sequence and a power parameter based on a judgment result; the instruction is synchronously issued to an execution device, and the three-phase moving contact is driven to be synchronously opened; and a contact position signal after opening is collected for verification, and if the preset state is not reached, parameters are adjusted for re-driving until opening is completed and a signal is output. The problems that when a direct-current control power supply loses power, an existing GIS high-voltage circuit breaker depends on a single-phase independently-operated manual emergency opening device, so that opening is different, operation is tedious, and the emergency efficiency is low are solved.

This utility model relates to the field of garment manufacturing technology, and in particular to an electrical power device for automatically rolling up bag openings, including a base plate; a clamping mechanism installed on the upper rear end of the base plate; a shaping mechanism installed on the upper end of the base plate; and a feeding mechanism installed on the upper end of the shaping mechanism. The clamping mechanism includes: a guide shaft arranged horizontally, fixedly mounted to the upper rear end face of the base plate via a mounting seat; a clamp installed at the middle of the guide shaft; and a clamping strip installed at the top front end of the clamp. The shaping mechanism further includes: two wall panels symmetrically installed on the upper end of the base plate; a side slide plate and a cover plate, respectively installed on the upper ends of the two wall panels, with the side slide plate located to the right of the cover plate. This utility model solves the problems of uneven edge spacing and excessive production losses in products sewn using existing technologies.