A corrosion failure analysis of copper wires used in outdoor terminal boxes in substation

Wu, Tangqing; Zhou, Zhaofen; Xu, Shugen; Xie, Yi; Huang, Lu; Yin, Fucheng

doi:10.1016/j.engfailanal.2019.01.070

Cited by 25 publications

(6 citation statements)

References 29 publications

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“…For the Cr 2p spectrum (Figure b), the characteristic peaks at 577.2 eV (Cr 2p 3/2 ) and 587.2 eV (Cr 2p 1/2 ) belong to Cr 3+ . The Cu 2p spectrum (Figure c) is fitted with two characteristic peaks at 933.7 eV (Cu 2p 3/2 ) and 953.7 eV (Cu 2p 1/2 ) accompanied by two satellite peaks, which are related to Cu 2+ . The Mn 2p spectrum (Figure d) shows two peaks centered at 641.8 and 653.4 eV, which are indexed to Mn 3+ .…”

Section: Results and Discussionmentioning

confidence: 99%

“…45 The Cu 2p spectrum (Figure 4c) is fitted with two characteristic peaks at 933.7 eV (Cu 2p 3/2 ) and 953.7 eV (Cu 2p 1/2 ) accompanied by two satellite peaks, which are related to Cu 2+ . 46 The Mn 2p spectrum (Figure 4d) shows two peaks centered at 641.8 and 653.4 eV, which are indexed to Mn 3+ . 47 For the Fe 2p spectrum (Figure 4e), the peaks at 712.4 eV (Fe 2p 3/2 ) and 724.9 eV (Fe 2p 1/2 ) correspond to Fe 3+ .…”

Section: Methodsmentioning

confidence: 99%

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Entropy-Assisted High-Entropy Oxide with a Spinel Structure toward High-Temperature Infrared Radiation Materials

Guo

Wang

et al. 2021

ACS Appl. Mater. Interfaces

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Developing advanced materials with a high-entropy concept is one of the hot trends in materials science. The configurational entropy of high-entropy materials can be tuned by introducing different atomic species, which can also impart a result in excellent physical and chemical properties. In this work, we synthesized a solid-solution oxide (Cu, Mn, Fe, Cr) 3 O 4 by a simple and scalable solid-phase synthesis method. We extensively investigated the microstructure and chemical composition, indicating that (Cu, Mn, Fe, Cr) 3 O 4 has a single-phase spinel structure. Simultaneously, we reasonably evaluated the position occupied by the elements of (Cu, Mn, Fe, Cr) 3 O 4 in a spinel structure as (Cu 0.75 Fe 0.25 )(Fe 0.25 Cr 0.375 Mn 0.375 ) 2 O 4 . Here, we first evaluated the infrared radiation performance of (Cu, Mn, Fe, Cr) 3 O 4 . The new, high-entropy oxide (HEO) (Cu, Mn, Fe, Cr) 3 O 4 powder exhibits high infrared emissivity values of 0.879 and 0.848 in the wavelengths of 0.78−2.5 and 2.5−16 μm, respectively, and has excellent thermal stability. More importantly, the infrared emissivity values of as-prepared HEO coating reach 0.955 (0.78−2.5 μm) at room temperature and 0.936 (3−16 μm) at 800 °C. This work provides a viable strategy toward the laboratory mass production of this HEO for infrared radiation materials, which shows great potential in the energy-related applications.

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Section: Results and Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Entropy-Assisted High-Entropy Oxide with a Spinel Structure toward High-Temperature Infrared Radiation Materials

Guo

Wang

et al. 2021

ACS Appl. Mater. Interfaces

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“…Electrochemical measurements were conducted by CS350 electrochemical measurement system with a threeelectrode electrochemical cell [30,31]. A saturated calomel electrode (SCE) and a platinum electrode were used as the reference electrode (RE) and the counter electrode (CE), respectively.…”

Section: Electrochemical Measurementmentioning

confidence: 99%

Corrosion behavior of the weld joint of X80 pipeline steel in an acidic red soil

Cao

Li³

et al. 2020

Mater. Res. Express

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In this paper, the corrosion behavior of X80 pipeline steel weld joints in an acidic red soil solution was studied. The results show that uniform corrosion occurs on the entire surface of the weld joint after 840 h immersion. The corrosion degree of heat affected zone (HAZ) is more serious than that of base metal (BM) and weld zone (WZ). The corrosion rate of HAZ specimen is always higher than those of WZ and BM specimens throughout the separated immersion. The accelerating corrosion of HAZ may come from its microstructure change, its corrosion sensitivity and the deterioration of mechanical performance of corrosion product on it. OPEN ACCESS RECEIVED

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“…Corrosion generally occurs when the metal interacts with oxygen, water, or other chemical substances, which causes the metal to melt [11]. On copper plates, it is essential to maintain their surface condition, as a small amount of corrosion will cause damage and switching failure [12] [13]. Therefore, in this paper, a system was created that could monitor and control temperature and humidity within the cubicles.…”

Section: Introductionmentioning

confidence: 99%

Temperature and Humidity Control System for 20 kV of Cubicle with Multiple Input Multiple Output Fuzzy Logic Controller

Ramadhan,

Efendi,

Nugraha

2023

JAREE

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Cubicle 20 kV is a crucial electrical equipment in the 20 kV power distribution system. Often, cubicle issues arise due to excessively low or high temperatures and humidity, which can lead to the presence of water spots and corrosion on the components inside the 20 kV cubicle. One of the efforts to maintain the reliability of this 20 kV cubicle is to ensure that the temperature and humidity inside the cubicle remain within their operational limits. To achieve this, a system is needed to control the temperature and humidity in the 20 kV cubicle. The system can monitor and control the temperature and humidity inside the cubicle by adjusting the activation angle of the exhaust fan and heater. Control is achieved using a multiple-input, multiple-output fuzzy logic controller. The main components of this system are the STM32 microcontroller, DHT22 sensor, and ESP8266 module for monitoring temperature and humidity via a website. System has successfully controlled temperature and humidity d with a set point value of 35 °C and humidity of 60% RH. This implementation of fuzzy multiple input multiple outputs has performed well and resulted in only a small error of 0.55% for temperature and 1.05% for humidity.With the presence of this device, the temperature and humidity in the cubicle 20 kV can be controlled, and it enables the PLN operator to easily monitor and maintain the cubicle 20 kV.

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A corrosion failure analysis of copper wires used in outdoor terminal boxes in substation

Cited by 25 publications

References 29 publications

Entropy-Assisted High-Entropy Oxide with a Spinel Structure toward High-Temperature Infrared Radiation Materials

Entropy-Assisted High-Entropy Oxide with a Spinel Structure toward High-Temperature Infrared Radiation Materials

Corrosion behavior of the weld joint of X80 pipeline steel in an acidic red soil

Temperature and Humidity Control System for 20 kV of Cubicle with Multiple Input Multiple Output Fuzzy Logic Controller

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