Development of a partial discharge emulator for calibration of a radiometric PD detection system

Abstract

A purely electronic partial discharge emulator for use in a location estimation algorithm for online partial discharge detection is proposed as a low-cost approach to real-time condition monitoring, asset management and operation optimization in future smart grid. Some early progress in the development of subsystems (specifically the radiometer antenna and PD emulator) for a proof-of-principle prototype system are described.

Simulação de Pulsos de Descargas Parciais para Sistemas de Detecção Radiométricos

“…O arranjo utilizado para as medições pode ser observado na Figura 2. O gerador de descarga parcial foi feita a partir de um cilindro de acrílico com dois eletrodos planos do tipo disco, em paralelo [10]. Dois parafusos de nylon são usados para definir a distância entre os elétrodos que estão ligados à fonte de alimentação de alta tensão.…”

Early progress in the development of a radiometric PD location system

“…It does not generate its signal using a discharge process and is not, therefore, subject to variation due to discharge damage of electrodes or insulation. The PD emulator is described in [4].…”

Radiometric location of partial discharge sources for the future smart grid

“…A more economical method of PD monitoring and location might be to employ PD intensity measurements followed by source location using, for example, path-loss law inversion [4]. Such measurements could be gathered using a broadband receiver as the sensing element at each node of a conventional wireless sensor network (WSN).…”