Electrical Power Tranmission

摘要

An improved management of an electrical power transmission network is obtained by providing at each of the subscriber premises a load control device which includes a power correction system for applying a capacitive load and/or a switched reactor for voltage correction across the input voltage and a sensing system defined by a pair of meters one at the supply and the second downstream of the voltage correction for detecting variations in power factor. A control system operates to control the power correction system in response to variations detected by the sensing system and to communicate between the load control device and the network control system so as to provide a bi-directional interactive system.

主权项

1. A load control device for use in an electrical power transmission network including a plurality of subscriber premises for receiving electrical power, each including a plurality of user devices on a power supply circuit, at least some of which cause power factor variations when operated and transmission lines supplying electrical power with each of the subscriber premises having a drop from one of the transmission lines to a power supply inlet, the load control device being arranged for connection to a respective one of the power supply inlets for controlling the power supplied from the power supply inlet to the user devices on the power supply circuit,
the load control device comprising:
a sensing system for detecting variations in power factor caused by the user devices;a power correction system for applying a capacitive load to the power supplied by the drop to the subscriber premises;and a control system for controlling the power correction system in response to variations detected.