Partial discharges and breakdown in C3F8

Breakdown behavior in radio-frequency argon discharges

Partial Discharges in Ellipsoidal and Spheroidal Voids

Transients associated with partial discharges in voids can be described in terms of the charges induced on the terminal electrodes of the system. The relationship between the induced charge and the properties which are usually measured is discussed. The method is illustrated by applying it to a spheroidal void located in a simple disk-type GIS spacer. I N T R O D U C T I O N HE transients which...

Automated Recognition of Partial Discharges

In this work an overview of automated recognition of partial discharges (PD) is given. The selection of PD patterns, extraction of relevant information for PD recognition and the structure of a data base for PD recognition are discussed. Mathematical methods useful for the design of the data base are examined. Classification methods are interpreted from a geometrical point of view. Some problem...

Partial Discharges in Low-Voltage Cables

Testing of high voltage apparatus for partial discharges has long been recognized as an important part of quality control for these devices. Recently, interest has been focused on methods for testing low voltage cables to determine their integrity under adverse operating conditions such as a loss of coolant accident. A new method, utilizing partial discharges, is presented which has the potenti...

Detection of Partial Discharges Using Optelectronic Method

The insulation of the high voltage equipment is deteriorated due to the partial discharges (PDs). So it is required to monitor PDs continuously for prediction of insulation life, replacement time and early indication of outages of HV power equipment. In this work, an optical network is used to detect and measure the PDs in a model transformer.