Results 11 to 20 of about 287,127 (264)

Estimation of Line Parameters, Tap Changer Ratios, and Systematic Measurement Errors Based on Synchronized Measurements and a General Model of Tap-Changing Transformers

IEEE Open Journal of Instrumentation and Measurement, 2022
A primary requirement for the transmission system operator is an accurate knowledge of grid parameters. Moreover, the availability of effective and accurate monitoring tools allows the proper operation of power transmission grids.
Paolo Attilio Pegoraro, Carlo Sitzia, Antonio Vincenzo Solinas, Sara Sulis   +3 more
doaj   +1 more source

Suitability of Voltage Sensors for the Measurement of Switching Voltage Waveforms in Power Semiconductors

IEEE Open Journal of Power Electronics, 2022
This paper investigates the effect of voltage sensors on the measurement of transient voltages for power semiconductors in a Double Pulse Test (DPT) environment.
Sebastian Sprunck, Martin Koch, Christian Lottis, Marco Jung   +3 more
doaj   +1 more source

A Development of a Capacitive Voltage Divider for High Voltage Measurement as Part of a Combined Current and Voltage Sensor

Elektronika ir Elektrotechnika, 2020
This article deals with the development of capacitive voltage divider for high voltage measurements and presents a method of analysis and optimization of its parameters.
Roman Hrbac, Vaclav Kolar, Mikolaj Bartlomiejczyk, Tomas Mlcak, Petr Orsag, Jakub Vanc   +5 more
doaj   +1 more source

Development and Validation of a Novel Setup for LEDs Lifetime Estimation on Molded Interconnect Devices

Instruments, 2018
Higher energy efficiency, more compact design, and longer lifetime of light-emitting diodes (LEDs) have resulted in increasing their market share in the lighting industry, especially in the industries of consumer electronics, automotive, and general ...
Mahdi Soltani, Moritz Freyburger, Romit Kulkarni, Rainer Mohr, Tobias Groezinger, André Zimmermann   +5 more
doaj   +1 more source

A subsystem‐based fault location method in distribution grids by sparse measurement

IET Generation, Transmission & Distribution, 2023
With the development of smart meters and other intelligent electronic devices, more and more data‐driven fault location methods based on wide area measurement are emerging.
Xiaodong Lv, Lifen Yuan, Zhen Cheng, Baiqiang Yin, Yigang He, Chengwei Ding   +5 more
doaj   +1 more source

Semiconductor loss calculation of DC–DC modular multilevel converter for HVDC interconnections

High Voltage, 2018
DC–DC modular multilevel converter (DC–DC MMC) is an attractive candidate for high-voltage DC (HVDC) interconnections since it can provide the required voltage matching, galvanic isolation and flexible power control abilities.
Shanshan Zhao, Yu Chen, Li Peng
doaj   +1 more source

Notes on the measurement of high voltage [PDF]

Proceedings of the American Institute of Electrical Engineers, 1916
A briet account is given of some experiments made to determine mine the relative accuracy of certain methods used in measuring high voltages. The methods comprise the use of a tertiary (or voltmeter) coil in the high-tension transformer, the direct measurement of voltage by a crest voltage meter and the derivation of the high-tension pressure from the ...
openaire   +1 more source

A Design of PWM Controlled Calibrator of Non-Sinusoidal Voltage Waveforms

Energies, 2019
Power quality conditions in electrical power networks have drastically changed in recent years. A number of electrical devices and power generators that are the main sources of disturbances is ever increasing.
Goran Petrovic, Juraj Alojzije Bosnic, Goran Majic, Marin Despalatovic   +3 more
doaj   +1 more source

A Novel Feature Extraction and Fault Detection Technique for the Intelligent Fault Identification of Water Pump Bearings

Sensors, 2021
The reliable and cost-effective condition monitoring of the bearings installed in water pumps is a real challenge in the industry. This paper presents a novel strong feature selection and extraction algorithm (SFSEA) to extract fault-related features ...
Muhammad Irfan, Abdullah Saeed Alwadie, Adam Glowacz, Muhammad Awais, Saifur Rahman, Mohammad Kamal Asif Khan, Mohammad Jalalah, Omar Alshorman, Wahyu Caesarendra   +8 more
doaj   +1 more source

Analysis of Traditional and Alternative Methods for Solving Voltage Problems in Low Voltage Grids: An Estonian Case Study

Energies, 2022
Smart Cities can benefit from existing municipal low voltage (LV) distribution grids by supporting public services with permanent power supply and providing grid connection points to distributed generators (DG).
Argo Rosin, Imre Drovtar, Heigo Mõlder, Kaija Haabel, Victor Astapov, Toomas Vinnal, Tarmo Korõtko   +6 more
doaj   +1 more source