Temperature Rise Test on Medium Voltage Switchgear Assembly Based on IEC Standard

Iderus, Samat; Peter, Geno

doi:10.1109/icot51877.2020.9468746

Cited by 4 publications

(3 citation statements)

References 2 publications

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“…Additionally, the variation of the electrical resistance of the switchgear main circuits, before and after the simulation of the fault, is analysed. This analysis is different from the one found in [7], where the temperature rise in MV switchgears compliant to the IEC 62271-1:2011 standard was verified, based on the procedure indicated by the norm. In this study, the tested switchgear is already certified according to IEC 62271-200:2021: the analysis of the temperature variation is aimed at the possible implementation of an IoT sensor-based thermal monitoring system to support enhanced maintenance services of the switchgear.…”

Section: Introductioncontrasting

confidence: 84%

Temperature Rise in MV Switchgears: the Role of Loose Busbar Joints

Spinsante¹,

Iadarola²,

Mazzocchi³

et al. 2022

Proceedings of the 25th IMEKO TC4 International Symposium and 23rd International Workshop on ADC and DAC Modelling and Testing

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The identification of the different causes of a Medium Voltage (MV) switchgear failure is a complex task. Among the conditions contributing to failure, thermal cycling due to loose joints and electrical components may act as a trigger for fault. This paper presents an experimental analysis of temperature variation taking place in 27 different points of a MV switchgear and originating from loose mechanical and electrical joints in the busbars, compared to the normal operating condition. The loose joints -due to improper installation, vibrations, or ageing of components -are obtained by applying a controlled clamping below the recommended operational value of 45 Nm torque, to six busbar joint screws (two for each phase). Results show that when the applied clamping goes below 10% of the recommended value, temperature does not rise significantly in points other than the loose ones, while the main circuits exhibit a detectable variation of their electrical resistance.

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Section: Introductioncontrasting

confidence: 84%

Temperature Rise in MV Switchgears: the Role of Loose Busbar Joints

Spinsante¹,

Iadarola²,

Mazzocchi³

et al. 2022

Proceedings of the 25th IMEKO TC4 International Symposium and 23rd International Workshop on ADC and DAC Modelling and Testing

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show abstract

“…Temperature rise test is one of the type test performed on almost all electrical equipment to verify the over load capacity of the equipment and to study the performance of the equipment under thermal and mechanical stress [10][11][12][13]. Temperature rise test helps to get perusal of energy loss that occurs in the equipment during its operative condition.…”

Section: Literature Reviewmentioning

confidence: 99%

“…As a result, temperature might be viewed as a particularly important ageing factor for power electronics. Temperature accelerates the ageing of the insulation system in electrical equipment over long-term, exceptionally hot summer months and at fully loaded equipment [13,14,16]. Numerous studies of the temperature rise in the switchgear have been done on a simulation platform only.…”

Section: Literature Reviewmentioning

confidence: 99%

An innovative method to conduct temperature rise test on medium voltage switchgear assembly based on IEC standards in a power grid

Iderus¹,

Peter²,

Ganji

2022

The Journal of Engineering

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Modern civilization is characterised by a high need for electrical energy. The importance of electricity in daily life has grown to the point that it is desirable to safeguard the power system from damage during fault situations and to ensure maximum supply continuity, which necessitates the use of switchgear. Testing of any electrical equipment indicates the extent to which the equipment is able to comply with a customer's requirements. In this paper temperature rise test on a medium voltage switchgear assembly is considered. In this research, sub-clause 6.5.2 of IEC standard 62271-1 is followed to conduct temperature rise test on a medium voltage switchgear assembly. The test is conducted on two modes, first following the existing method of testing and second by an innovative method of testing. The temperature rise test is conducted on a 12 kV, 50 kA, 3150 A single busbar switchgear assembly and the readings are measured, analysed and compared between the two methods. It is concluded that the temperature rise recorded following the innovative method is more accurate compared to the existing method, as an increase in the recorded temperature rise is seen in all the thermocouple locations as the heat dissipation to the ambient is reduced.

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Materials Compatibility Study of C₄F₇N/CO₂ Gas Mixture for Medium-Voltage Switchgear

Gao

Cao

Wang

et al. 2022

IEEE Trans. Dielect. Electr. Insul.

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Temperature Rise Test on Medium Voltage Switchgear Assembly Based on IEC Standard

Cited by 4 publications

References 2 publications

Temperature Rise in MV Switchgears: the Role of Loose Busbar Joints

Temperature Rise in MV Switchgears: the Role of Loose Busbar Joints

An innovative method to conduct temperature rise test on medium voltage switchgear assembly based on IEC standards in a power grid

Materials Compatibility Study of C₄F₇N/CO₂ Gas Mixture for Medium-Voltage Switchgear

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Temperature Rise Test on Medium Voltage Switchgear Assembly Based on IEC Standard

Cited by 4 publications

References 2 publications

Temperature Rise in MV Switchgears: the Role of Loose Busbar Joints

Temperature Rise in MV Switchgears: the Role of Loose Busbar Joints

An innovative method to conduct temperature rise test on medium voltage switchgear assembly based on IEC standards in a power grid

Materials Compatibility Study of C4F7N/CO2 Gas Mixture for Medium-Voltage Switchgear

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Materials Compatibility Study of C₄F₇N/CO₂ Gas Mixture for Medium-Voltage Switchgear