Metal-oxide surge arrester operating limits defined by a temperature-margin concept

St-Jean, G.; Petit, A.

doi:10.1109/61.53064

Cited by 21 publications

(4 citation statements)

References 6 publications

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“…V – I characteristic of MOSA can be divided into low and high current regions. In low current region, temperature is the main factor that cause V – I characteristics changing [21,22]. Therefore, experimental setup was prepared in order to perform the practical tests on MOSA varistor by considering temperature variation.…”

Section: Electrical Parameters Of Mosa: Measurement Computation Andmentioning

confidence: 99%

Application of finite element method for electro‐thermal modeling of metal oxide surge arrester

Seyyedbarzegar

Mirzaie

2015

Comp Applic In Engineering

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Analysis of electro‐thermal behavior in various operating condition based on finite element method was proposed in this article. Power frequency and impulse stresses vary the operating region and temperature of surge arresters. Therefore, adaptive power loss was considered as a source in the modeling of surge arrester based on finite element method. Adaptive network based fuzzy inference system and frequency dependent model were used to model power loss in low and high current regions, respectively. To obtain accurate power loss, which is very important factor in electro‐thermal analysis, applied voltage and temperature were considered as inputs in adaptive network based fuzzy inference system model. The experimental setup including impulse generator, power frequency high voltage generator and also an oven was arranged to achieve real data. Finally, the results of simulation based on proposed adaptive method were compared with the thermal infrared camera results. This study shows that the electro‐thermal behavior of surge arrester is predictable with a good accuracy by using artificial model. © 2015 Wiley Periodicals, Inc. Comput Appl Eng Educ 23:910–920, 2015; View this article online at http://wileyonlinelibrary.com/journal/cae; DOI

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Section: Electrical Parameters Of Mosa: Measurement Computation Andmentioning

confidence: 99%

Application of finite element method for electro‐thermal modeling of metal oxide surge arrester

Seyyedbarzegar

Mirzaie

2015

Comp Applic In Engineering

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“…Thermal management within an arrester is very important, as has been previously mentioned [33,[39][40][41][42][45][46]. Improving the heat transfer characteristics of the arrester can be affected by changing the materials and/or their thermal conductivity.…”

Section: Zinc Oxide Performance Issuesmentioning

confidence: 99%

Insulation system protection with zinc oxide surge arresters

Bialek¹

1999

IEEE Electr. Insul. Mag.

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Key Words: Zinc oxide, surge arresters, arrester selection ver since the first lines were strung, electrical storms and other natural phenomenon have caused voltage surges to occur in the connected system. Surges due to lightning and line switching cause instantaneous and incipient failures. As the systems have grown more complex, available fault current levels have risen, requiring sophisticated surge protection schemes.Spark gaps were the earliest form of overvoltage protection. Due to problems with power frequency follow-through current, current-limiting spark gaps with a series impedance were ultimately developed. The silicon carbide (Sic) arresters with magnetically blown spark gaps were the epitome of this form of overvoltage protection. [1,84]. Surge capacitors and inductors were also utilized in certain applications to limit the overvoltages produced in the system.Insulation coordination standards and guides for the application of surge protective devices developed, which provided a basis for the selection of surge protective devices. [21,27,[93][94][95]. These standards required a minimum protective margin for front-of-wave, standard impulse and switching surge levels, which, based on experience, should provide adequate protection for the life of the equipment, typically 30 or 40 years.As the transmission voltage levels increased, the equipment insulation levels decreased. For equipment such as transformers, the ratio of the basic impulse insulation level, BIL, to system voltage decreases with increasing system voltage [92]. While there are many explanations for this decreasing ratio, the need to reduce equipment size and costs along with the awarding of contracts on the basis of lowest cost have been very important. Ultimately, the need for better protective margins drove the surge arrester manufacturers to develop improved forms of surge protection. In 1968, Dr. M. Matsuoka and his colleagues at Matsushita Electric Co. discovered zinc oxide (ZnO) varistors [83].This paper deals first briefly with the Sic versus ZnO arrester arguments that have led to the wide acceptance of ZnO as the arrester of choice in most applications. ZnO fundamentals and performance issues are discussed. This paper is intended to be a brief tutorial on ZnO surge arresters, and Tom Bialek Pacific Gas and Electric Companythe reader is encouraged to consult the reference section and the literature for more detailed informatison [82]. Silicon Carbide limitationsSic arresters have several fundamental limitations: the Sic valve elements, the gaps, and the power follow-through current. The element's nonlinearity coefficient is typically of the range 2 to 6 and also has a negative temperature coefficient [l, 2,20, 841. During arrester operation the valve element impedance decreases, which allows a higher value of power frequency current to flow, which must be cleared by the gaps necessary to isolate the arrester from nominal system voltages. Multiple series current-limiiting gaps are utilized to improve the gap reliability versus , % si...

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“…Lat [6] proposes a simple thermal model to describe the metal ZnO arrester. St‐Jean and Petit [7] predicted the temperature–time curve based on an electro‐thermal model of the arrester and proposed the operating limits defined by a temperature‐margin concept. Ringler et al [8] proposed that ZnO arresters’ energy absorption capacity at a particular current level is from 400–600 to 1600–2000 J/cm 3 .…”

Section: Introductionmentioning

confidence: 99%

Study on the thermal behaviour and non‐linear coefficient of the 10 kV ZnO surge arrester

Wang

et al. 2020

IET gener. transm. distrib.

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Metal-oxide surge arrester operating limits defined by a temperature-margin concept

Cited by 21 publications

References 6 publications

Application of finite element method for electro‐thermal modeling of metal oxide surge arrester

Application of finite element method for electro‐thermal modeling of metal oxide surge arrester

Insulation system protection with zinc oxide surge arresters

Study on the thermal behaviour and non‐linear coefficient of the 10 kV ZnO surge arrester

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