Analysis of identification and treatment methods of arc suppression coil fault

Analysis of Automatic and Fast Switching Scheme for Closed Loop Point of the Power Grid in the Baotou Area

“…The power grid mostly presents the pattern of closed-loop structure and open-loop operation with the rapid development of the local power grid [4]. When the power grid is under maintenance or a fault occurs, the loop closing and the power exchange operation are needed to improve the reliability of the power supply and avoid load loss [5]. As the amplitude and phase angle of bus voltage on both sides of the power grid are generally different before closing the loop, the voltage shock will be generated at the closed loop point when the loop is closed, which will cause system disturbance.…”