Eaton Intelligent Power Limited

Eaton Corporation

Mark Steven Tomassi

Scott Morgan Williams

Irving Albert Gibbs

Justin Raymond Hoglund

Cathleen M Clausen

Mark Alan Gould

Jonathan Scott Adams

An ATS bypass switch includes a draw-out ATS switch; a bypass switch; and a processor structured to automatically control both of the draw-out ATS switch and the bypass switch.

Automatic transfer switch (ATS) bypass switch

Power systems include a housing and an automatic transfer switch (ATS switch) held in the housing, a Bypass switch held in the housing and a control circuit in communication with the ATS switch and the Bypass switch to automatically direct the Bypass switch and the ATS switch to carry out the selective connections to thereby allow automated, redundant power transitions to the system load from three different power sources.

Three-source automatic redundant bypass-isolation switches and related power systems and methods

A system includes a circuit interruption device, such as a circuit breaker, contactor or other switch of an automatic transfer switch (ATS) or a similar device providing power to an input of an ATS, and a monitoring circuit, such as a controller of the ATS, coupled to the circuit interruption device and configured to monitor voltages at inputs and outputs of the circuit interruption device, to monitor an auxiliary contact signal associated with auxiliary contacts of the circuit interruption device, and to determine a status of the auxiliary contacts responsive to the monitored voltages and auxiliary contact signal.

Apparatus and methods for monitoring auxiliary contact status

Three-source automatic redundant bypass-isolation switches and related systems and methods

An interlock assembly for a bypass isolation open or closed transition ATS assembly is disclosed. The interlock assembly ensures that a switch assembly being worked upon and/or being inserted is in a neutral configuration, i.e. the switch assembly is not engaging a power source. The interlock assembly is, preferably, an electrical interlock having a control system structured to configure the switch assemblies and to monitor the configuration of the switch assemblies. That is, the switch assemblies each include a power operated, conductive, movable contact arm. The position of each contact arm is controlled, and monitored by, the control system which controls the single actuator for each contact arm.

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Waynesville, NC, United States of America

Mark Steven Tomassi