Abstract: A power distribution apparatus, comprising: a plurality of switches each operable to switch a respective power source of a plurality of power sources between a first input node of a first load and a second input node of a second load; a first power meter configured to determine a first power being delivered to the first input node from the plurality of power sources via the plurality of switches; a second power meter configured to determine the power consumption of the first load; and a control module configured to control the switches to distribute power between the first and second loads in dependence on the determined first power and the determined power consumption of the first load.

Abstract: An apparatus (10) for detecting the occurrence of partial discharge in electrical equipment, such as high voltage transformers. The apparatus comprises a detecting means including an ultrasonic transducer (11) mounted at one end of an electrically insulating elongate rod (13). The ultrasonic transducer (11) is adapted to detect ultrasonic pulses or waves generated by the occurrence of a partial discharge in the electrical equipment. A radio frequency (RF) transducer (17) is also utilized to detect radio frequency (RF) pulses or waves also generated by the partial discharge. The rod (13) can be mounted in the wall of the electrical equipment and so provide a mechanism for adjusting the position of the detecting means within the electrical equipment. The apparatus is also removable from the electrical equipment and re-locatable to other equipment.