Results 31 to 40 of about 2,235 (252)

Προστασία επαφών ηλεκτρονόμου με varistor [PDF]

, 2016
Εθνικό Μετσόβιο Πολυτεχνείο--Μεταπτυχιακή Εργασία.
Mavrakis, Vasileios, Μαυράκης, Βασίλειος   +1 more
core   +1 more source

Investigation of Diagnostic Techniques for Metal Oxide Surge Arresters [PDF]

, 2005
Gapless metal oxide surge arresters(MOSA)have been available in the market for many years since they were first introduced in the 1970's. The aim of this study is to investigate some reliable diagnostic techniques to assess the condition of a metal oxide
Mardira, Karl P., Saha, Tapan K., Sutton, R. A.   +2 more
core   +1 more source

New Fault-Location Algorithm for Series-Compensated Double-Circuit Transmission Line

IEEE Access, 2020
This paper proposes a new fault location algorithm to accurately locate the faults of series-compensated double-circuit transmission line and improve the stability of power system operation, which is not affected by fault types. The proposed algorithm is
Daiying Cai, Jun Zhang
doaj   +1 more source

Study of a Combined Surge Protective Device for a Relay Protection Circuit in a UHV Converter Station

IEEE Access, 2020
This article focuses on the problem that the voltage recovery time of relay protection circuits in converter stations is too long under lightning surges.
Yuqi Zhang, Weidong Zhang, Jianfei Ji
doaj   +1 more source

Testing of High Voltage Surge Protection Devices for Use in Liquid Argon TPC Detectors [PDF]

, 2014
In this paper we demonstrate the capability of high voltage varistors and gas discharge tube arrestors for use as surge protection devices in liquid argon time projection chamber detectors.
Asaadi, J., Conrad, J. M., Gollapinni, S., John, J. M. St., Jones, B. J. P., Jostlein, H., Strauss, T., Wolbers, S., Zennamo, J.   +8 more
core   +2 more sources

Immittance Spectroscopy of Smart Components and Novel Devices [PDF]

, 1994
AC small-signal immittance spectroscopy is employed as a viable tool to demonstrate electrical characterization, performance improvement, and quality assurance issues of smart materials-based components and novel devices. The variation in the ac response,
Alim, Mohammad Anwarul, Khanam, Sanjida, Seitz, Martin A.   +2 more
core   +3 more sources

Three‐phase overvoltage at lightning strike point due to direct triggered lightning to the phase wire of 10 kV power distribution line

IET Generation, Transmission & Distribution, 2022
This paper reports the observation results of three‐phase overvoltage at the lightning strike point of a 1.5 km, 10 kV power distribution line that was struck directly by rocket triggered lightning to its phase wire C.
Jianguo Wang, Yating Zhao, Li Cai, Yuqian Fang, Quanxin Li, Rui Su, Shoupeng Wang, Mi Zhou   +7 more
doaj   +1 more source

Model Free Traveling Wave Based Fault Location Method for Series Compensated Transmission Line

IEEE Access, 2020
Locating fault position in a series compensated transmission line is a difficult task due to the non-linear characteristics of the metal-oxide varistor which is present in the protection system of the compensator. In this paper, a model-free two-terminal
O. D. Naidu, Ashok Kumar Pradhan
doaj   +1 more source

Impulse Life Evaluation Method of MOV Based on Weibull Distribution

IEEE Access, 2021
The working life evaluation of metal oxide varistor (MOV) is always expected by MOV manufacturers and users. In Oct. 2019, the International Electrotechnical Commission (IEC) SC37B established a project team PT 61643–333 led by the author of this ...
Qibin Zhou, Xin Huang, Bengang Wei, Linlong Ye   +3 more
doaj   +1 more source

Preparation of zinc-oxide and zinc-sulfide powders by controlled precipitation from aqueous-solution [PDF]

, 1994
Resumo não disponível..
Jesus, Júlio D. Pedrosa de, O'Brien, Paul, Trindade, Tito   +2 more
core   +2 more sources