Application of Distributed Partial Discharge Detection in Sync Technique to After-laying Withstand Voltage Test for Large-scale 500kV XLPE Cable Circuit

2018 ◽  
Author(s):  
Min Chen ◽  
Koji Urano ◽  
Zhipeng Zhou ◽  
Bo Sun ◽  
Yunjie Zhou ◽  
...  
Keyword(s):  
Large Scale ◽  
Partial Discharge ◽  
Xlpe Cable ◽  
Discharge Detection

Partial Discharge Detection and Localization in Power Transformer Windings

2014 ◽  
Vol 554 ◽  
pp. 578-582
Author(s):  
Zulkurnain Abdul-Malek ◽  
Mohammed Abd Ali Aziz ◽  
Ali Saleh Aziz
Keyword(s):  
Large Scale ◽  
Transfer Functions ◽  
Power Transformer ◽  
Partial Discharge ◽  
Travelling Wave ◽  
Frequency Spectra ◽  
Detection Frequency ◽  
Transformer Winding ◽  
Winding Insulation ◽  
Discharge Detection

The activity of partial discharge (PD) is one of the major causes of failure of high voltage transformers. Partial discharge detection is usually used as a preventive technique to avoid large-scale losses in the power system. Suitable and reliable methods to detect and localize PD in equipment winding insulation, such as in a transformer, are still widely researched. Among the methods used are based on the acoustic wave, on the electrical determination of the dominant capacitive region in frequency domain, and on the travelling wave method. After a brief review on current methods, a technique based on the frequency spectra of the measured signals showing the characteristic of the transfer functions is proposed. A Matlab simulation of the proposed technique is then presented. PD signals are injected at various points in a transformer winding to represent PD sources at different location within the winding. The main difficulties encountered in current methods, which is the noise and the limit in the detection frequency range, is overcome. In the frequency spectra of the proposed method, the crests and troughs could be used for locating the source of the discharge activity in a power transformer winding.

scholarly journals Development process and testing of partial discharge detection device on medium voltage XLPE cable

2020 ◽  
Vol 19 (3) ◽  
pp. 1297
Author(s):  
Mohamad Izmir Farhan Mohamad Radzi ◽  
N H Nik Ali ◽  
Azrul Mohd Ariffin ◽  
Muhamad Safwan Abd Rahman ◽  
Norhidayu Rameli ◽  
...  
Keyword(s):  
High Voltage ◽  
Acoustic Waves ◽  
Development Process ◽  
Partial Discharge ◽  
Vital Role ◽  
Xlpe Cable ◽  
Medium Voltage ◽  
Void Defects ◽  
Development Processes ◽  
Discharge Detection

High voltage assets play a vital role in providing uninterrupted power to the consumers and any slight problems experienced by the assets may cause losses in millions of dollars to businesses. Therefore it is of utmost importance to monitor the health of high voltage assets. This research presents the development process of a Partial Discharge (PD) device that is able to detect PD acoustic waves for monitoring high voltage assets purposes. Medium voltage Cross-Linked Polyethylene (XLPE) cable was used which was introduced with spherical void defects at the joints of the cable that functioned to produce PD acoustic waves. Outcome of the development processes provides the finished design of the PD sensing device, known as Partial Discharge Detection (PDD) device. The functionality of the PDD device was also assessed through controlled experimentations, and they proved to be successful. Pure PD waveform captured by the ultrasonic sensor was similar when compared to a HFCT sensor’s pure PD waveform. The PDD device is a small and affordable, and is opened to various improvements such as integrating Artificial Intelligence (AI) unto the device, and one day may replace most existing bulky and expensive PD sensing devices that are readily available in the market.

A Novel Oscillation Wave Test System for Partial Discharge Detection in XLPE Cable Lines

2020 ◽  
Vol 35 (4) ◽  
pp. 1678-1684 ◽  
Author(s):  
Guangya Zhu ◽  
Kai Zhou ◽  
Shilin Zhao ◽  
Yuan Li ◽  
Lu Lu
Keyword(s):  
Partial Discharge ◽  
Test System ◽  
Xlpe Cable ◽  
Cable Lines ◽  
Discharge Detection
Sign in / Sign up

Export Citation Format

Share Document