Measurement of Partial Discharge Induced Electromagnetic Wave using Loop Antenna

Electromagnetic fields of thin circular loop antenna of arbitrary radius

The radiation pattern of a circular loop source of alternating current located in the lower half-space of two conductive media is considered. A solution of the linear Maxwell’s equations in the frequency domain, using the Hankel transform to modified Helmholtz wave equations, was obtained. This leads to a system of ordinary differential equations with respect to the vertical coordinate, conside...

Measurement of Magnetic Antenna Factor of Shielded Loop Antenna by 3-antenna Method

A Review of Online Partial Discharge Measurement of Large Generators

Online partial discharge (PD) measurements have long been used as an effective means to assess the condition of the stator windings of large generators. An increase in the use of PD online measurement systems during the last decade is evident. Improvements in the detection capabilities are partly the reason for the increased popularity. Another reason has been the development of digital signal ...

Uhf Monitoring of Partial Discharge in Substation Equipment Using a Novel Multi-sensor Cable Loop

This paper describes the development of a partial discharge measurement system that utilises a multiplexed approach to ultra-high-frequency monitoring on many pieces of equipment using a single cable loop connected to only two sampling channels. It is envisioned that the system could be used in partial discharge monitoring of medium voltage metal-enclosed switchgear, or several power transforme...

Electromagnetic radiation induced by a gravitational wave