Experience with on-line partial discharge analysis as a tool for predictive maintenance for medium voltage (MV) switchgear systems

Smith, J.E.; Paoletti, G.J.; Blokhintsev, I.

doi:10.1109/pcicon.2002.1044997

Cited by 3 publications

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To realize online detection, methods such as ultra-high-frequency (UHF) method [ 5 , 6 , 7 , 8 ], acoustical emission (AE) method [ 9 , 10 , 11 ], and transient earth voltage (TEV) method [ 12 , 13 , 14 ] have been proposed to couple PD signals based on the phenomena of electromagnetic (EM) radiation, acoustic radiation, and transient current flow that accompany PDs, respectively [ 15 ]. Among these methods for online detection of discharge-type insulation failure, the TEV method is the most acceptable for PD detection of metal-enclosed switchgear because of its high sensitivity, broad frequency band, easy installation, and non-electrical contact detection [ 16 , 17 , 18 ]. However, over the years, PD monitoring and insulation status evaluation have been implemented manually using professional PD instrumentation with scheduled testing periods [ 19 ].…”

Section: Introductionmentioning

confidence: 99%

Partial Discharge Monitoring on Metal-Enclosed Switchgear with Distributed Non-Contact Sensors

Zhang

Dong

Ren

et al. 2018

Sensors

View full text Add to dashboard Cite

Metal-enclosed switchgear, which are widely used in the distribution of electrical energy, play an important role in power distribution networks. Their safe operation is directly related to the reliability of power system as well as the power quality on the consumer side. Partial discharge detection is an effective way to identify potential faults and can be utilized for insulation diagnosis of metal-enclosed switchgear. The transient earth voltage method, an effective non-intrusive method, has substantial engineering application value for estimating the insulation condition of switchgear. However, the practical application effectiveness of TEV detection is not satisfactory because of the lack of a TEV detection application method, i.e., a method with sufficient technical cognition and analysis. This paper proposes an innovative online PD detection system and a corresponding application strategy based on an intelligent feedback distributed TEV wireless sensor network, consisting of sensing, communication, and diagnosis layers. In the proposed system, the TEV signal or status data are wirelessly transmitted to the terminal following low-energy signal preprocessing and acquisition by TEV sensors. Then, a central server analyzes the correlation of the uploaded data and gives a fault warning level according to the quantity, trend, parallel analysis, and phase resolved partial discharge pattern recognition. In this way, a TEV detection system and strategy with distributed acquisition, unitized fault warning, and centralized diagnosis is realized. The proposed system has positive significance for reducing the fault rate of medium voltage switchgear and improving its operation and maintenance level.

show abstract

Section: Introductionmentioning

confidence: 99%

Partial Discharge Monitoring on Metal-Enclosed Switchgear with Distributed Non-Contact Sensors

Zhang

Dong

Ren

et al. 2018

Sensors

View full text Add to dashboard Cite

show abstract

“…With the insulation deterioration, partial discharge may emerge and its long-term existence will further deteriorate insulation. Ultimately, insulation failure will take place and the switchgear will be out of service, which have direct influence on the supply reliability of the power distribution system [1][2][3][4]. In addition, the adverse operating environment condition is one of the main factors bringing about insulation defects in switchgear.…”

Section: Introductionmentioning

confidence: 99%

Design of Insulation Online Monitoring and Anti-Condensation Control System for Distribution Switchgear

2021

AJETS

View full text Add to dashboard Cite

The partial discharge and condensation in distribution switchgear seriously affect the insulation state, which can cause insulation failure and lead to the shutdown of electrical equipment. This paper designs and develops a set of insulation online monitoring and anti-condensation control system for distribution switchgear. By comprehensive use of transient earth voltage (TEV) technology and ultrasonic technology for partial discharge detection, temperature and humidity detection, control technology and wireless communication technology, the system realizes the online monitoring of insulation, temperature and humidity in switchgear. In addition, the system can automatically control the heater, fan or other environmental adjustment equipment and reduce the occurrence of condensation in switchgear.

show abstract

Utilizing Simulation to Enhance Predictive Maintenance in Power Rails of Switch Gears by Analyzing Temperature Changes Under Varying Current Loads

Krawczyk,

Szuba

2023

2023 Progress in Applied Electrical Engineering (PAEE)

View full text Add to dashboard Cite

Experience with on-line partial discharge analysis as a tool for predictive maintenance for medium voltage (MV) switchgear systems

Cited by 3 publications

References 0 publications

Partial Discharge Monitoring on Metal-Enclosed Switchgear with Distributed Non-Contact Sensors

Partial Discharge Monitoring on Metal-Enclosed Switchgear with Distributed Non-Contact Sensors

Design of Insulation Online Monitoring and Anti-Condensation Control System for Distribution Switchgear

Utilizing Simulation to Enhance Predictive Maintenance in Power Rails of Switch Gears by Analyzing Temperature Changes Under Varying Current Loads

Contact Info

Product

Resources

About