Double Optical Fiber Temperature Compensation Method for Measurement of Interface Pressure Between Simulated Cable and Accessory at High Temperatures

Wang, Xia; Wu, Chao; Wang, Yanding; Fan, Zhuoyang; Wu, Kai

doi:10.1109/tdei.2023.3253808

Cited by 5 publications

(2 citation statements)

References 16 publications

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“…Normand Amyot studied the effect of temperature on interfacial pressure, but did not study the effect of temperature on the modulus of elasticity of silicone rubber or the effect of aging on interfacial pressure [10]. Wang X analyzed the effect of extreme high and low temperatures on interfacial pressure, but did not study the effect of high temperatures (150 • C, 170 • C) on interfacial pressure [11]. Based on the mechanical properties of the material itself, some researchers considered the thermal expansion effect of the material and conducted simulation analysis on the magnitude of the impact of different factors on the interface pressure of the accessory surface.…”

Section: Introductionmentioning

confidence: 99%

Effect of Temperature and Thermal Ageing of Cable Silicone Rubber Accessories on Interface Pressure of Cable Joints

Xia,

Ouyang,

Wang

et al. 2023

Applied Sciences

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The adequate interfacial pressure of silicone rubber in cable intermediate joints is a basic condition to ensure the normal operation of cable joints, while high temperature and ageing in the operation of actual cables and accessories would affect the magnitude of interfacial pressure. The uniaxial tensile force of two different silicone rubbers for 10 kV cold-shrink joints at different temperatures and thermal ageing times was measured by experiment, and the Yeoh rubber intrinsic structure model was fitted according to the measured data. The material model was embedded into a two-dimensional axisymmetric finite element simulation model of the structure, and the relationship between the interference, temperature, thermal ageing time and interfacial pressure was investigated. The results show that the interfacial pressure increases linearly with the increase in interference. At the same interference, the interfacial pressure at the root of insulating silicone rubber and semiconducting silicone rubber increased by 9.1%, 12.3%, 6.4% and 9.2%, 16.3%, 5.6%, respectively, at 50, 75, and 100 °C compared with room temperature, and the largest interfacial pressure of cable joints was at 75 °C. Using the established ageing life prediction model based on the Arrhenius principle, the service life of the accessories was predicted to be 28.9 years at 90 °C of operating temperature and interfacial pressure greater than 55% of initial interfacial pressure.

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Section: Introductionmentioning

confidence: 99%

Effect of Temperature and Thermal Ageing of Cable Silicone Rubber Accessories on Interface Pressure of Cable Joints

Xia,

Ouyang,

Wang

et al. 2023

Applied Sciences

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show abstract

“…The main methods for detecting the pressure at the interface between the cable attachment and the body are the sensor method [4][5][6][7] and the finite element analysis method [8][9][10]. The built-in sensor method is to pre-install a pressure sensor between the cable attachment and the body, and the sensor detects the pressure change at the interface and outputs the result.…”

Section: Introductionmentioning

confidence: 99%

An Interface Pressure Detection Method of Cable Silicone Rubber-XLPE Based on Nonlinear Ultrasound

et al. 2023

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The interface pressure between the cable attachment and the body is crucial for the stable long-term operation of the cable. To solve the issue of interface insulation characteristics’ damage caused by the pressure transducer measurement method, a non-destructive testing method of silicone rubber interface pressure using nonlinear ultrasound is presented. Initially, the study analyzes the propagation characteristics of ultrasonic waves at the interface of cross-linked polyethylene and silicone rubber. The study also establishes the relationship between the nonlinear coefficient and the interface pressure. Subsequently, a nonlinear ultrasonic test platform is constructed using the pulse reflection method to measure the interface pressure of flat silicone rubber and cross-linked polyethylene through nonlinear ultrasonic testing. Theoretical and experimental results indicate that the fundamental amplitude of the frequency domain of the interface reflection wave decreases, and the second harmonic amplitude and nonlinear coefficient both increase as pressure increases. These results demonstrate that the nonlinear ultrasound, non-destructive testing method can accurately evaluate the interfacial pressure state of the cable accessories.

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Analysis of interfacial pressure changes of thermally cycled cold shrinkable joints

Hamdan

2024

Electr Eng

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Double Optical Fiber Temperature Compensation Method for Measurement of Interface Pressure Between Simulated Cable and Accessory at High Temperatures

Cited by 5 publications

References 16 publications

Effect of Temperature and Thermal Ageing of Cable Silicone Rubber Accessories on Interface Pressure of Cable Joints

Effect of Temperature and Thermal Ageing of Cable Silicone Rubber Accessories on Interface Pressure of Cable Joints

An Interface Pressure Detection Method of Cable Silicone Rubber-XLPE Based on Nonlinear Ultrasound

Analysis of interfacial pressure changes of thermally cycled cold shrinkable joints

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