| 摘要 |
An apparatus for and method of evenly distributing an electrical load across an n-phase power distribution network. The current in each incoming phase and in each branch circuit is measured by a current sensor. The outputs of the current sensors are monitored by a processor. Associated with each branch circuit is a multi-pole switch and a conventional circuit breaker. Each switch is able of connecting its corresponding branch circuit to any incoming phase, and of disconnecting the branch circuit from all n phases. The processor periodically monitors currents flowing through each incoming phase and, based on branch circuit load conditions, reprograms the switches to keep the branch circuit loads evenly distributed across all three incoming phases. A further feature provides the pre-programmed, processor-controlled, changing of load connections, for example as a function of time-of-day; and to provide a "priority list" for dropping loads in case of an overloaded power-line condition, and for subsequently reconnecting loads. A further feature provides telephone communication between the processor and the electric company, including the capability of transmitting information to the electric company. The capability of the electric company to make inquiries of the processor, e.g., concerning loading of each of the phases. The capability of the electric company to issue commands to the processor, e.g., to connect or to disconnect loads, and the capability of the electric company to remotely alter the programming the processor via the telephone connection and the ability to monitor electric power consumption. |
