Partial Discharge detection

Citation Author(s):
Daniel
Pinardi
University of Parma
Andrea
Toscani
University of Parma
Fabio
Immovilli
University of Modena and Reggio Emilia
Submitted by:
Daniel Pinardi
Last updated:
Wed, 06/26/2024 - 06:13
DOI:
10.21227/57zj-4y32
Data Format:
License:
0
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Abstract 

Insulation fault detection in rotating machinery using Partial Discharge (PD) has been a hot research topic over the last decades. In recent years, attention has also been paid to low voltage machines, following the advent of wide bandgap semiconductor devices. This paper presents a low-cost, modular, and full-digital PD monitoring device, particularly suitable for deployment in large industrial plants. The proposed innovative solution allows us to implement a monitoring network, ensuring complete coverage in large industrial plants and continuous monitoring of critical machinery. The PD monitoring device relies on a PD conditioning front-end, an acquisition board connected via a daisy chain topology to an interface board, which communicates via Universal Serial Bus with a personal computer. The PD conditioning front-end was initially simulated using PSpice, then built and tested together with the entire acquisition system.Preliminary tests conducted on a proof-of-concept laboratory setup, which included a low voltage induction motor, produced promising results.

Instructions: 

Each file contains two channels:

channel 1 -> partial dischargeĀ 

channel 2 -> reference test signal (50 Hz)

For the "LeCroy oscilloscope", the sampling frequency is 20 MHz and the duration of each recording is 2*10^6 samples (0.1 s).

For the "digital DAQ system", the sampling frequency is 48 kHz and the duration of each recording is about 7.7*10^5 samples (16 s).

Each serie features 9 measurements, with the following test voltage: 1 kV, 1.1 kV, 1.2 kV, 1.3 kV, 1.35 kV, 1.4 kV, 1.5 kV, 1.6 kV, 2.0 kVĀ