ESKOM HOLDINGS LIMITED Patent applications |
Patent application number | Title | Published |
20110248721 | PARTIAL DISCHARGE MONITORING METHOD AND SYSTEM - The invention relates to a method and system of monitoring partial discharges occurring in an electrical system, and to a method of measuring or analyzing partial discharges occurring in an electrical system. The method comprising receiving a signal or impulse, or information associated therewith, from the electrical system; breaking the received signal or impulse into predefined frequency components; and displaying a peak of the received signal or impulse on a scatter plot with other peaks associated with similar predefined frequency components. | 10-13-2011 |
20110193563 | PARTIAL DISCHARGE MONITOR - This invention relates to high voltage electrical or power systems and in particular to a method and device for monitoring partial discharges in high voltage electrical or power systems. The method comprises defining a low trigger level and a high trigger level electrical pulse amplitude levels, monitoring at least one phase of the electrical system for an occurrence of a pulse within a defined minor time frame; detecting a peak amplitude of a pulse occurring in the electrical system within the minor time frame; determining if the detected peak amplitude of the pulse exceeds the lower and higher trigger levels; assigning a pulse number to the pulse if the peak amplitude of the pulse exceeds the trigger levels; capturing the pulse if the pulse number associated with the pulse is less than a predetermined pulse number threshold in the minor time frame; and storing the captured pulses in a memory. | 08-11-2011 |
20100274405 | METHOD OF DEMAND SIDE ELECTRICAL LOAD MANAGEMENT AND AN ASSOCIATED APPARATUS AND SYSTEM - The present disclosure discloses a method ( | 10-28-2010 |