Investigation of Passivating Layers in c-Si Solar Cells Using a Corona Charging System

There are two existing surface passivation principles. Passivation of unsaturated Si bonds is called chemical passivation. Surface passivation can also be achieved by shielding the minority charge carriers from the semiconductor interface by means of an electric field. This method is referred to as field-effect passivation. <br/>To test the...

New clustering techniques based on current peak value, charge and energy calculations for separation of partial discharge sources

Clustering techniques are of main interest for separation of partial discharge (PD) sources. The separation is achieved if it is possible to extract from the PD pulses specific information related to the source. In this sense, this paper explores the capability of fundamental quantities derived from PD current pulses such as the peak amplitude...

Partial Discharge Analysis in HVDC Gas Insulated Substations

Nowadays, Gas Insulated Substations (GIS) are vital nodes of the Transmission Network due to their compact dimensions permitted by the use of SF6 as insulating medium and the high reliability guaranteed. Nonetheless, the strictly requirements of safety in operation and continuous power supply catalyse the attention to improve the reliability and...

Design of a feasible Corona wind air purifier to guarantee the capture and termination of hazardous fine bioaerosols for use in surgery and operation rooms in hospitals