Analysis of arc existence in electrical contact gap for 42 V automotive DC components
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Femi Robert
Abstract
In this paper, the existence of arc in an electrical contact gap is investigated. A 14 and 42 V DC electrical circuit for an automotive vehicle is considered and the factors which causes arc are identified. A plate–plate, cylinder–cylinder and cone–cone electrical contact are considered for which the closed-state resistance and open-state capacitance are acquired for Al, Cu, Fe, Ni, Au and Pt materials. The voltage, current and power characteristics curves of the electrical contact are obtained for the equivalent automotive DC system. The temperature and electric field of the electrical contact is also reported. The breakdown voltage and electric field for the micro-gaps of 0.5–10 µm are presented and the boundary for arcless operation of the electrical contact is identified. Arc existence is analyzed for four circuit conditions with various voltage and current levels. Simulations are executed using COMSOL Multiphysics Finite Element software tool and the results were related with calculated values. The results show that power has more influence on the arc existence in electrical contact. Electrical contact does not produce an arc due to voltage and electric field. The plate–plate electrical contact with Pt material performs better in terms of arcless switching. These electrical contacts would have an influential role in the design of an arcless, less weight, low cost, reliable electrical contact for next-generation automotive DC power system.
Author contribution: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
Research funding: None declared.
Conflict of interest statement: The authors declare no conflicts of interest regarding this article.
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© 2020 Walter de Gruyter GmbH, Berlin/Boston
Articles in the same Issue
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- Analysis of arc existence in electrical contact gap for 42 V automotive DC components
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Articles in the same Issue
- Research Articles
- Analysis of arc existence in electrical contact gap for 42 V automotive DC components
- Research on influence of split conductor induced voltage on TRV
- Ultra mega power plant disturbance related oscillation detection in Indian grid using PMU data
- Implementation of medium voltage remote controlled switches to improve quality performance indexes – a case study
- A simplified method for fault detection and identification of mismatch modules and strings in a grid-tied solar photovoltaic system
- A model for calculating losses in transformer related to orders and harmonic amplitude under analysis of joule effect, eddy current and hysteresis
- A new principle of UHVDC line pilot protection based on trigger angle control characteristics
- A phasor-distance based faulty phase detection and fault classification technique for parallel transmission lines
- Study on the insulation characteristics of environmentally friendly CF3I/N2/CO2 mixed gas
- Development of thermal model for estimation of core temperature of batteries
- Analysis of power quality in a grid system connected with a three phase induction motor
- Research on the influencing factors of losses in 10 kV, 1000 kW induction motor
