Results 111 to 120 of about 362,311 (271)
Internal partial discharges test for metal oxide surge arresters [PDF]
, 2012 Proposals for testing of surge arresters performance under internal partial discharge stress by Sakshaug, Chrzan and Korycki have been ...
Chrzan, K L
core
High Voltage, EarlyView.ABSTRACT This paper investigates the generation mechanism of quasi‐power‐frequency resonant overvoltage triggered by multiple lightning strikes in high‐voltage alternating current (HVAC) systems equipped with shunt reactors. Based on field measurements from a 500 kV AC system, equivalent and simplified circuit models have been established to analyse ...
Tao Liang +7 more
wiley +1 more source
High Voltage, EarlyView.ABSTRACT To effectively suppress transient overvoltages in HVDC systems, the design and experimental validation of a multi‐module series controllable arrester are presented. The voltage‐limiting performance, series voltage equalisation capability, and robustness under fault conditions in high‐voltage scenarios require further research.
Tai Yang +4 more
wiley +1 more source
Advance technique for online condition monitoring of surge arresters [PDF]
Gapless surge arresters (GLSA) constructed with zinc oxide (ZnO) element is connected in electrical power system for protection against surge voltage. For condition monitoring of GLSA conventionally offline and online techniques are available.
Pandya, Kartik S., Khopkar, Anil S.
core +1 more source
Study on the Power‐Frequency Arc Extinction Characteristics of Semi‐Closed Short‐Gap Device
High Voltage, EarlyView.ABSTRACT Multi‐chamber arc‐extinguishing devices have a simple structure and excellent arc‐extinguishing performance; thus, they have attracted considerable attention as lightning protection devices. However, the structural parameters of different models of the aforementioned devices vary, leading to inconsistent protection levels; therefore, the arc ...
Yeqiang Deng +4 more
wiley +1 more source
Validation of ZnO surge arresters model for overvoltage studies
, 2004 —This paper presents an improvement of the procedure to determine the parameters of the simplified model for metal-oxide surge arresters, derived from the IEEE standard model.
PINCETI, PAOLO +2 more
core +1 more source
High Voltage, EarlyView.ABSTRACT High voltage equipment, as a core component of power systems, plays an indispensable role in ensuring the reliability of power supply through its safe and stable operation. Traditional visual defect detection for high voltage equipment, however, often relies on manual inspection and experience‐based judgement, which struggles to meet the ...
Zhenbing Zhao +7 more
wiley +1 more source
Effects of Dopants and Processing Parameters on the Properties of ZnO-V2O5-Based Varistors Prepared by Powder Metallurgy: A Review. [PDF]
Materials (Basel), 2023 Lungu MV.
europepmc +1 more source
Radioactive reliability of gas filled surge arresters
, 2003 The goal of this paper is to determine use of gas filled surge arresters (GFSA) with a built-in radioactive sources in radiative environment. Furthermore, a pseudoempiric method has been developed to determine the GFSA pulse shape characteristics.
Osmokrović, Predrag V. +2 more
core +1 more source
High Voltage, EarlyView.ABSTRACT The traction power supply system of high‐speed railways is exposed to complex lightning environments over the long term. Overvoltage generated by direct lightning or induced lightning can propagate along the overhead contact line, traction substations, onboard high‐voltage system and mobile grounding system, thereby threatening equipment ...
Guangning Wu +9 more
wiley +1 more source