The impact of plunger angle and radius on the force and time response of DC solenoid electromagnetic actuator used in high-voltage circuit breaker

2020 ◽  
Vol 118 ◽  
pp. 105767
Author(s):  
Eduard Plavec ◽  
Božidar Filipović-Grčić ◽  
Mladen Vidović
Keyword(s):  
High Voltage ◽  
Circuit Breaker ◽  
Time Response ◽  
Electromagnetic Actuator ◽  
High Voltage Circuit Breaker ◽  
The Impact

scholarly journals CFD Simulation of Transonic Flow in High-Voltage Circuit Breaker

2012 ◽  
Vol 2012 ◽  
pp. 1-9 ◽  
Author(s):  
Xiangyang Ye ◽  
Mahesh Dhotre
Keyword(s):  
High Voltage ◽  
Transonic Flow ◽  
Distribution Systems ◽  
Cfd Simulation ◽  
Circuit Breaker ◽  
Circuit Breakers ◽  
High Voltage Circuit Breaker ◽  
The Impact ◽  
Transmission And Distribution ◽  
Prediction Capability

A high-voltage circuit breaker is an indispensable piece of equipment in the electric transmission and distribution systems. Transonic flow typically occurs inside breaking chamber during the current interruption, which determines the insulating characteristics of gas. Therefore, accurate compressible flow simulations are required to improve the prediction of the breakdown voltages in various test duties of high-voltage circuit breakers. In this work, investigation of the impact of the solvers on the prediction capability of the breakdown voltages in capacitive switching is presented. For this purpose, a number of compressible nozzle flow validation cases have been presented. The investigation is then further extended for a real high-voltage circuit breaker geometry. The correlation between the flow prediction accuracy and the breakdown voltage prediction capability is identified.

Design and Realization of 35kV Phase Controlled Circuit Breaker and its Electromagnetic Force Driving Actuator

2013 ◽  
Vol 380-384 ◽  
pp. 3213-3216
Author(s):  
Hai Yan Wang ◽  
Duan Lei Yuan ◽  
Chen Xu Niu ◽  
Hua Jun Dong
Keyword(s):  
High Voltage ◽  
Simulation Analysis ◽  
Random Phase ◽  
Circuit Breaker ◽  
Transient Simulation ◽  
Test Validation ◽  
Load Force ◽  
Magnetic Actuator ◽  
Phase Selection ◽  
High Voltage Circuit Breaker

In this paper, mainly for the problem that high voltage circuit breaker closing at the random phase can bring hard harmfulness to the power system. We design the 35kV SF6-Phase Control circuit breaker can control speed smartly, and opens or closes with phase selection, which is equipped with the magnetic actuator. In the article, the static and transient simulation analysis which includes the load force, and carried out prototype trial and test validation. At last, the results of simulation and test is given.

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