Abstract
This paper presents the research on the impact of plunger angle on the force and time response of DC solenoid electromagnetic actuator used in high-voltage circuit breaker (HVCB). The research method is based on analytical analysis of the magnetic path of DC solenoid electromagnetic actuator and comparison with the numerical simulation results. Transient numerical simulation of DC electromagnetic actuator has been performed on 2D axial-symmetric model using finite element method (FEM). Numerical simulation includes simultaneously solving differential equations of magnetic, electrical and mechanical subsystems. The electrical and mechanical subsystems are modelled separately and then mutually coupled with the magnetic subsystem which is analysed by FEM in ANSYS Electronics software package. The measurement results obtained after the production and laboratory testing of electromagnetic actuators with different plunger angles are compared with the analytical and numerical simulation results.
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