Electrical transmission or interconnection systems – Plural load circuit systems – Control of current or power
Patent
1997-03-05
1999-01-26
Gaffin, Jeffrey A.
Electrical transmission or interconnection systems
Plural load circuit systems
Control of current or power
307117, 340541, H02J 314
Patent
active
058641840
ABSTRACT:
Interface circuitry for facilitating the installation of a control device is presented. One embodiment includes an interface circuit with first and second terminals that can be coupled interchangeably to a load and the utility hot of an AC power source, thus eliminating the time-consuming requirement that a particular wire be coupled to a particular terminal. The interface circuit also limits the amount of current supplied to the control device during periods of low current demand, thus reducing current and power consumption. An additional feature further facilitates installation of a control device when that device is being installed in a metallic electrical enclosure that is itself coupled to utility return. The device's return terminal is automatically coupled to the power source's utility return upon mounting of the control device in the enclosure.
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Mudge Philip Howland
Platner Brian Page
Platner Keith Kendell
Gaffin Jeffrey A.
Harnett Christopher J.
Paladini Albert W.
Platner Brian Page
Secrest Thomas L.
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