Results 11 to 20 of about 634 (239)
Evaluation of Uncertainty in Partial Discharge Measurement: A Case Study
IEEE AccessISO/IEC 17025:2017 recommends all accredited laboratories under this standard, performing testing and calibration, shall identify and evaluate the contributions to the uncertainty of their measurements.
Asif Islam +5 more
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Propagation of Partial Discharge Pulses in Winding [PDF]
Advances in Electrical and Electronic Engineering, 2004 A lot of measurements of the attenuation of partial discharge pulses on the model of winding was realized in the HighVoltage Laboratory of the Czech Technical University in Prague.
Karel Zalis
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A comparative study on partial discharge emulators. [PDF]
, 2020 Partial Discharge (PD) detection plays a vital role in electrical power stations, it can help protecting the high voltage equipment, it can prevent explosion of these equipment and hence preventing a catastrophic failure. PD detection can be performed in
Mahmud A. Yusuf +14 more
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Precision Calibration System for Partial Discharge Calibrators
Proceedings of the Nordic Insulation Symposium, 2019 Partial discharge calibrators need to be periodically calibrated traceable to national standards. VTT MIKES, the National Metrology Institute (NMI) of Finland, has official expertise to calibrate the apparent charge of PD calibrators from 1 pC to 100 nC according to IEC 60270.
Hällström, Jari, Havunen, Jussi
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Firmware for partial discharge calibrator
, 2022 The goal of this thesis is to create a firmware which realizes processor control for a given hardware (calibrator of partial discharge meters). Thesis describes what options are availible in the field of processor control of devices, their advantages ...
Turinský, Matěj
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Development of rogowski coil sensor for partial discharge detection [PDF]
, 2019 This paper presents the development of Rogowski coil to detect the partial discharge. Rogowski coil sensor is composed of a ferrite core with a various number of turns which is 5, 10, 20 and 30 turns with a half circle and full circle configuration.
Ahmad, M. H. +12 more
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Research on Calibration Technology of TEV Partial Discharge Smart Sensors
Journal of Physics: Conference Series, 2021 Abstract TEV partial discharge detection is an important method to judge the insulation status of the switchgear. However, the quality of TEV smart sensors produced by different manufacturers on the market is uneven. Some TEV smart sensors that have been put into operation have deficiencies in measurement sensitivity, data stability, and
Hongming Shao, Zhiguo Tang
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, 2005 The location of partial discharges in a power transformer can be determined based on the characteristics of the transfer function from the discharge source to the measuring terminal.
Crossley, P.A. +5 more
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Calibration Technology and Application of Ultrasonic Sensor for Partial Discharge Detector [PDF]
Proceedings of the 5th International Conference on Advanced Design and Manufacturing Engineering, 2015 Guangke Xu 1, a , Fuchun Sun, Weiwei Zhang , Ming Li , Zhenhua Zhu, Andong Wang , Fuqiang Zhao 1,g , Jie Liu , and Xiuzhong Gong 1 State Grid Shandong Electric Power Research Institute, Jinan, 250002, China 2 State Grid Yantai Power Supply Company, Yantai, 264000, China 3 Shandong Zhongshiyitong Group Co., Ltd. Jinan, 250002, China xuguangkesd@163.com,
Xiuzhong Gong +8 more
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Low‐Angle Grain Boundaries and Re‐Segregation in Single‐Crystalline Ni‐Base Superalloys
Advanced Engineering Materials, EarlyView.This work demonstrates that Re‐segregation at low‐angle grain boundaries (LAGBs) in Ni‐base superalloys is influenced by misorientation angle. Advanced microscopy and atom probe tomography reveal that higher misorientation angles increases Re‐segregation.
Alireza B. Parsa +9 more
wiley +1 more source