Electrical power distribution systems with a bypass unit that couples to a load and electrically engages one of two alternate units for powering the load and related methods
AssigneeEaton Intelligent Power Limited
InventorsRobert A. Morris, Morris Len Roush, JR., Matthew R. Hussey
Life of this patent
Estimating the term…
Abstract
Electrical power distribution systems with a bypass unit that electrically engages one of two alternate units for powering a load while electrically isolating the other using a power transfer switch with first and second contactors and mechanical and electrical interlocks to allow a technician to access one of the alternate units when de-energized and in position while the other of the alternate units is energized and powering the load.
Claims21
(canceled)
An electrical power distribution system comprising:
- a bypass unit configured to selectively couple a load to either a first unit or a second unit, wherein the first unit comprises a first circuit breaker and a first disconnect switch configured to selectively couple a power bus to the bypass unit, and the second unit comprises a second circuit breaker and a second disconnect switch configured to selectively couple the power bus to the bypass unit, wherein the bypass unit comprises a control system configured to:
- detect fault conditions in the first or second units, and
- selectively transfer the load between the first unit and the second unit in response to the detected fault conditions.
An electrical power distribution system comprising:
- a bypass unit configured to selectively couple a load to either a first unit or a second unit;
- wherein the first unit comprises a first disconnect switch and a first circuit breaker, and the second unit comprises a second disconnect switch and a second circuit breaker, each configured to selectively couple a power bus to the bypass unit;
- wherein the first unit, the second unit, and the bypass unit are each independently housed in separate compartments and are configured for modular installation and removal from the electrical power distribution system, and
- wherein the bypass unit is configured to maintain uninterrupted power to the load during the removal or replacement of the first unit or the second unit.
The electrical power distribution system of claim 12, wherein the bypass unit further includes a backup power source configured to maintain power to the control system and the load during a primary power failure.
Dependencies are inferred from the claim text.