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US 2008/0164831 A1Published application
Modular soft starter
AssigneeRockwell Automation Technologies, Inc.
InventorsDavid Donald Miller, David Scott S. Maclennan
Life of this patent
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Abstract
Modular soft starters are disclosed having a plurality of soft starter modules with stacked SCRs and heat sinks for accommodating a single phase of a three phase motor, where the modules may be connected serially for starting each phase of a higher voltage motor, and where the modules can be mounted in a cabinet in a variety of different orientations to facilitate optimized cabinet space utilization.
Claims23
A soft starter module for selectively electrically connecting a power line terminal with an electric motor load terminal, the module comprising:
- a first switching device having a first terminal electrically coupled with a load terminal and a second terminal electrically coupled with a line terminal;
- a second switching device having a first terminal electrically coupled with the line terminal and a second terminal electrically coupled with the load terminal;
- a driver apparatus providing switching control signals to the first and second switching devices for selectively electrically connecting the line terminal with the load terminal;
- and
- a housing with a top, a bottom, and at least one side, the housing comprising:
- a first housing structure,
- a second housing structure mounted to the first housing structure, the first and second housing structures defining a cavity in which the first and second switching devices are mounted and allowing for external access to the load terminal and the line terminal,
- at least one of the first and second housing structures including driver support structures for mounting the driver apparatus to the housing,
- a first set of module mounting structures located on at least one of the first and second housing structures and allowing the housing to be mounted to a flat structure with a first one of the top, the bottom, and the at least one side generally parallel to the flat structure;
- and
- a second set of module mounting structures located on at least one of the first and second housing structures and allowing the housing to be mounted to the flat structure with a second one of the top, the bottom, and the at least one side generally parallel to the flat structure.
8 more elements
Dependencies are inferred from the claim text.