【摘要】 分析了北仑电厂高压母线侧相间故障引起发电机失步保护误动的动作原因,并介绍了解决问题的方法。指出应充分考虑系统故障对发电机异常运行保护测量判据的影响,防止其误动。更多还原

【Abstract】 The cause of loss of synchronism protection RXZK malfunction when a phase to phase fault took place on the HV busbar in Beilun Power Plant was analyzed. The method to solve the problem was given. It was pointed out that the effect of system faults on the measurement criteria of the protection of the generator during abnormal condition should be fully considered to avoid malfunction of the protection.更多还原