The Fingerprint Characteristics of Partial Discharge on Typical Defects in GIS Based on Acoustic Detection

2012 ◽  
Author(s):  
Weizheng Zhang ◽  
Liang Zhang ◽  
Junhao Li ◽  
Yanming Li
Keyword(s):  
Partial Discharge ◽  
Acoustic Detection

scholarly journals A Review of Techniques for RSS-Based Radiometric Partial Discharge Localization

Sensors ◽  
2021 ◽  
Vol 21 (3) ◽  
pp. 909
Author(s):  
David W. Upton ◽  
Keyur K. Mistry ◽  
Peter J. Mather ◽  
Zaharias D. Zaharis ◽  
Robert C. Atkinson ◽  
...  
Keyword(s):  
Power Systems ◽  
High Voltage ◽  
Partial Discharge ◽  
Specific Area ◽  
Electrical Insulation ◽  
Acoustic Detection ◽  
Advantages And Disadvantages ◽  
Initial Stage ◽  
Catastrophic Failures ◽  
Radiometric Detection

The lifespan assessment and maintenance planning of high-voltage power systems requires condition monitoring of all the operational equipment in a specific area. Electrical insulation of electrical apparatuses is prone to failure due to high electrical stresses, and thus it is a critical aspect that needs to be monitored. The ageing process of the electrical insulation in high voltage equipment may accelerate due to the occurrence of partial discharge (PD) that may in turn lead to catastrophic failures if the related defects are left untreated at an initial stage. Therefore, there is a requirement to monitor the PD levels so that an unexpected breakdown of high-voltage equipment is avoided. There are several ways of detecting PD, such as acoustic detection, optical detection, chemical detection, and radiometric detection. This paper focuses on reviewing techniques based on radiometric detection of PD, and more specifically, using received signal strength (RSS) for the localization of faults. This paper explores the advantages and disadvantages of radiometric techniques and presents an overview of a radiometric PD detection technique that uses a transistor reset integrator (TRI)-based wireless sensor network (WSN).

Estimation of Partial Discharge Parameters in GIS Using Acoustic Emission Techniques

1998 ◽  
Vol 06 (04) ◽  
pp. 403-419 ◽  
Author(s):  
Nandini Gupta ◽  
T. S. Ramu
Keyword(s):  
Theoretical Basis ◽  
Partial Discharge ◽  
Electrical Power ◽  
Acoustic Detection ◽  
Electrical Discharges ◽  
Electrical Systems ◽  
Acoustic Methods ◽  
Discharge Parameters ◽  
Electrical Methods ◽  
Experimental Findings

Electrical discharge activity within an electrical power apparatus has detrimental effects on the insulating components of the system, and thus its prognosis and diagnosis are of utmost importance. Traditional electrical methods have been replaced by newer techniques such as acoustic detection. Among these, acoustic methods possess certain inherent advantages, especially where complex electrical systems like GIS are involved. The major concerns therein are the estimation of the magnitude of the discharge level as well as location of the source of discharge. The present work addresses, on a theoretical basis, problems connected with identification, measurement and location of electrical discharges, in particular in GIS. Models for the inception and propagation of p.d. within GIS have been proposed. This study, based essentially on a numerical simulation model, corroborates many of the experimental findings reported in the existing literature, and in addition attempts to suggest newer directions in magnitude estimation and location of p.d.

Review of Partial Discharge Signal Monitoring In Power Transformer Using Chromatic Approach

2013 ◽  
Vol 64 (4) ◽  
Author(s):  
M. M. Yaacob ◽  
Malik Abdulrazzaq Alsaedi
Keyword(s):  
High Voltage ◽  
Power Transformer ◽  
Partial Discharge ◽  
Electromagnetic Emission ◽  
Short Review ◽  
Detection Methods ◽  
Ozone Formation ◽  
Acoustic Detection ◽  
Monitoring Process ◽  
Signal Monitoring

In partial discharge (PD) phenomenon energy is emitted as electromagnetic emission, acoustic emission and chemical reactions as ozone formation and nitrous oxide gases. One of the continuous conditions monitoring process is done in high voltage equipments such as power transformer. This paper deals with a short review on PD detection methods regarding high-voltage equipments such as electrical detection, chemical detection, acoustic detection and optical detection. Also, new technique for PD signal monitoring in power transformer call as chromatic in the present. The chromatic approach shows the ability to quantifying information content of PD signal by chromatic parameters hue (H), saturation (S) and lightness (L), which can be related to characteristics of PD signal. The chromatic approach shows the ability to yielding new patterns, which monitoring indications of the discharges signals with high accurac and without noise.

Partial Discharge Investigation on Power Cable Termination Using PD Acoustic Detection

2020 ◽  
Author(s):  
Thanapong Suwanasri ◽  
Phanupong Fuangpian ◽  
Nattapon Panmala ◽  
Tanachai Somsak ◽  
Cattareeya Suwanasri ◽  
...  
Keyword(s):  
Partial Discharge ◽  
Power Cable ◽  
Acoustic Detection

The PD Pattern Characteristics of Typical Defects in GIS Based on Acoustic Detection

2013 ◽  
Vol 295-298 ◽  
pp. 2425-2428
Author(s):  
Xu Tao Wu ◽  
Bo Ma ◽  
Jin Peng Hao ◽  
Liang Zhang ◽  
Jun Hao Li ◽  
...  
Keyword(s):  
Pattern Recognition ◽  
Detection Method ◽  
Partial Discharge ◽  
Line Detection ◽  
Acoustic Detection ◽  
Insulation Failure ◽  
Key Factor ◽  
On Line ◽  
Pattern Characteristic ◽  
Insulation Condition

Gas insulated switchgear (GIS) is the most important equipment in the power system. The partial discharge (PD) is the main detection method for the insulation failure. Especially, for insulation condition assessment, the pattern recognition technology of partial discharge in GIS is the most important. Acoustic detection of GIS PD is the effective method and it has long application history. The acoustic detection method is very suitable for defects detection in GIS, for it has the advantages of on-line detection and easy realization of locating the defects.The PD pattern characteristic is the key factor for the analysis of defect type. The PD pattern characteristics of four typical defects in GIS based on acoustic detection are studied in this paper. The results provide a test basis for the recognition of PD types and a deeper study of the mechanism of PD.

Address fiber optical sensor for acoustic detection of a partial discharge in a switchgear

2019 ◽  
Vol 15 (3) ◽  
pp. 101-110
Author(s):  
R.Sh. Misbakhov ◽  
◽  
A.N. Vasev ◽  
A.Zh. Sakhabutdinov ◽  
I.I. Nureev ◽  
...  
Keyword(s):  
Optical Sensor ◽  
Partial Discharge ◽  
Acoustic Detection ◽  
Fiber Optical Sensor ◽  
Fiber Optical
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