Results 61 to 70 of about 4,585 (188)
UHF diagnostic monitoring techniques for power transformers [PDF]
, 2004 This paper initially gives an introduction to ultra-high frequency (UHF) partial discharge monitoring techniques and their application to gas insulated substations.
Bennoch, C.J. +3 more
core
Investigation of Partial Discharge in Solid Dielectric under DC Voltage
, 2014 A partial discharge, or PD, is defined as an electrical discharge that is localized within only a part of the insulation between two separated conductors. Recent research on PD mainly focuses on the study of PD characteristics under AC voltage.
Chen, G, He, M, Lewin, P L, Tian, J
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Analysis of By-Products of N2-SF6 Gas Mixtures Sparked under Inhomogenous Field Conditions [PDF]
, 2004 A vast data on formation of by-products due to arc and spark decomposition of SF6 is available in literature [1–10]. But experimental work relating to N2 - SF6 gas mixtures is limited. In view of increasing application of gas mixtures, it is essential to
AM Casanovas +6 more
core +2 more sources
PROPOSAL OF NEW K-FACTOR FUNCTION IN LIGHTNING IMPULSE TEST FOR ELECTRIC POWER EQUIPMENT [PDF]
, 2017 Ultra high voltage (UHV) systems are increasingly being planned and constructed, hence studies are promoted on the standard for high-voltage test techniques for UHV-class equipment.
Hikita M. +3 more
core +1 more source
Applied SciencesAir switchgear is an important power equipment in the transmission, transformation, and distribution process of the power system. Insulation defects can lead to partial discharge, which is one of the primary causes of air switchgear failure.
Yi Tian +3 more
doaj +1 more source
Operational diagnostics of high voltage instrument current transformers [PDF]
, 2016 В статті розглянуто пошкоджуваність високовольтних маслонаповнених вимірювальних трансформаторів струму 110 кВ та наведено приклад визначення поточного залишкового ресурсу цих трансформаторів в умовах неповноти початкових даних.
Рубаненко, Олександр Євгенійович
core +1 more source
Synthesis of Graphene-Based Sensors and Application on Detecting SF6 Decomposing Products: A Review
Sensors, 2017 Graphene-based materials have aroused enormous focus on a wide range of engineering fields because of their unique structure. One of the most promising applications is gas adsorption and sensing. In electrical engineering, graphene-based sensors are also
Xiaoxing Zhang, Hao Cui, Yingang Gui
doaj +1 more source
High VoltageThe submodule in multilevel modular converters experiences a very fast transient overvoltage (VFTO) during switch operation of gas‐insulated switchgear, which also results in overvoltage on power devices, such as thyristors and insulated gate bipolar ...
Hong Shen +7 more
doaj +1 more source
Semi-Supervised Learning-Based Partial Discharge Diagnosis in Gas-Insulated Switchgear
IEEE AccessEffective monitoring and diagnosis of partial discharge (PD) in power equipment are crucial for maintenance, particularly given the expectations of significant increases in energy generation and consumption. Although deep neural networks have been widely
Ho Trong Tai +3 more
doaj +1 more source
Imaging time series for the classification of EMI discharge sources [PDF]
, 2018 In this work, we aim to classify a wider range of Electromagnetic Interference (EMI) discharge sources collected from new power plant sites across multiple assets. This engenders a more complex and challenging classification task.
Boreham, Philip +5 more
core +2 more sources