Simulation of Partial Discharge in High Voltage Power Equipment
Asima Sabat,S. Karmakar +1 more
Reads0
Chats0
TLDR
In this paper, the simulation of partial discharge activity due to presence of a small cylindrical void inside the solid insulation material of high voltage power equipment is studied with the MATLAB Simulink platform.Abstract:
In high voltage (HV) electrical power system, variety of solid, liquid and gaseous materials are used for insulation purpose to protect the incipient failure inside the HV power equipment. Among these the solid insulation is widely used for high voltage power equipment HV electrical power system. Most of insulating materials are not perfect in all respect and contains always some impurities. The presence of air bubble is one of such impurities in insulating materials and highly undesirable for such type of insulation which causes a local weak zone inside the insulator. Insulation of the HV power equipment gradually degrades inside the insulator due to cumulative effect of electrical, chemical and thermal stress. Due to the high voltage stress the weak zone inside the insulator causes the partial discharge (PD) which is known as local electrical breakdown. As a result the insulation properties of such materials are enormously degrades its quality due to the PD. In this work, the simulation of PD activity due to presence of a small cylindrical void inside the solid insulation material of high voltage power equipment is studied with the MATLAB Simulink platform.read more
Citations
More filters
Journal ArticleDOI
Numerical modeling of partial discharges in a solid dielectric-bounded cavity: A review
TL;DR: In this article, a review of numerical modeling of cavity PD in the past 30 years is presented, where physical processes relevant to PD activity are summarized, and modeling methods for discharge development are classified.
Journal ArticleDOI
Partial discharge diagnostic system for smart distribution networks using directionally calibrated induction sensors
TL;DR: In this paper, an online partial discharge (PD) diagnostic system is presented to detect and locate the weak insulation spots developed in the network components spread over the distribution area, where the PD pulses originating and propagating from the defect site arrive at feeder joints, terminals and T-splices and are reflected from there.
Journal ArticleDOI
Feature extraction and ageing state recognition using partial discharges in cables under HVDC
TL;DR: Two different feature extraction methods combined with supervised classification techniques are implemented for ageing state recognition of a polyethylene-insulated cable under HVDC conditions and show satisfactory recognition rates of two ageing states of cable insulation.
Journal ArticleDOI
Computer Simulation of Partial Discharges in Voids inside Epoxy Resins Using Three-Capacitance and Analytical Models.
TL;DR: The theoretical background and state-of-the-art of the three-capacitance and analytical models for simulating PD in solid dielectrics, such as epoxy resins, are reviewed in detail and some critical arguments to the modelling procedure and assumptions are made.
Proceedings ArticleDOI
Online partial discharge diagnostics in medium voltage branched cable networks
TL;DR: In this article, an online technique of partial discharge (PD) detection and localization in medium voltage (MV) cables connected in branched network configurations, is presented by using the conventional methods.
References
More filters
Book
High Voltage Engineering
M S Naidu,V Kamaraju +1 more
TL;DR: Conduction and breakdown conduction and breakdown in liquid dielectric breakdown in solid dielectrics applications of insulating materials generation of high voltages and currents meaurement of high voltage and currents overvoltage phenomenon and insulation co-ordination in electric power systems non-destructive testing of materials and electrical apparatus high voltage testing of electrical apparatus design, planning and layout of high-voltage laboratories as discussed by the authors.
Journal ArticleDOI
Partial discharges. Their mechanism, detection and measurement
TL;DR: Different partial discharge detection and measurement procedures suitable for use on cables, capacitors, transformers and rotating machines are examined and compared in this paper, with particular attention given in regard to their suitability to different types of electrical apparatus and cable specimens under test as well as their applicability to discharge site location and their capability to detect different forms of PD.
Book
Partial Discharge Detection in High Voltage Equipment
TL;DR: In this paper, the authors collected this knowledge and presented it as a coherent study, including the behaviour detection and measurement of discharges, the choice of detection method and procedure, the location of discharging and discharge detection in practice.
Journal ArticleDOI
Measurement and simulation of PD in epoxy voids
F. Gutfleisch,L. Niemeyer +1 more
TL;DR: In this paper, phase averaged plots of the charge distribution over the time (aging plots) and phase resolved histograms (PRPD patterns) at various aging states are presented in order to provide insight into the physical changes in the void during aging.
Journal ArticleDOI
Partial discharges in ellipsoidal and spheroidal voids
TL;DR: In this paper, the authors described the relationship between the induced charge induced on the terminal electrodes of the system and the properties which are usually measured by applying it to a spheroidal void located in a simple disk-type spacer.
Related Papers (5)
Modeling and simulation based study for on-line detection of partial discharge of solid dielectric
V.K Fasil,S. Karmakar +1 more