Patent ID: 11955833
Assignee: SCHNEIDER ELECTRIC IT CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. An uninterruptible power supply (UPS) comprising:
an input configured to be coupled to, and receive input power from, a circuit breaker, wherein the circuit breaker is a main circuit breaker configured to provide a first portion of a current through the circuit breaker to the input and a second portion of the current through the circuit breaker to at least one branch circuit breaker;
an output configured to be coupled to, and provide output power to, at least one load;
an energy-storage-device interface configured to be coupled to, and receive back-up power from, an energy-storage device; and
at least one controller configured to
determine whether the current through the circuit breaker meets at least one over-current criterion;
control, responsive to determining that the current through the circuit breaker meets the at least one over-current criterion, the uninterruptible power supply to provide the output power to the at least one load, the output power being derived from the input power and the back-up power;
determine whether a current through the at least one branch circuit breaker meets at least one second over-current criterion; and
control, responsive to determining that the current through the at least one branch circuit breaker meets the at least one second over-current criterion, the uninterruptible power supply to provide the output power to the at least one load, the output power being derived from the input power and the back-up power.