弧光保护关键技术研究  

Study on key technologies of electric arc protection

作　　者：张喜玲[1,2] 杨慧霞[1,3] 蒋冠前 

机构地区：[1]许昌开普电气研究院,河南许昌461000 [2]华中科技大学,湖北武汉430074 [3]合肥工业大学,安徽合肥230001

出　　处：《电力系统保护与控制》2013年第14期130-135,共6页Power System Protection and Control

摘　　要：随着电力行业的快速发展,110kV及以上电压等级均已有比较成熟的保护措施,6kV(10kV)到35kV这个电压等级范围内的厂用中压配电开关柜为供电系统的供电枢纽,在发生内部故障时是否能迅速切除故障,对全厂(变电站)配电系统的安全运行至关重要。目前各电网公司在35kV及以下配电柜正逐步应用弧光保护,弧光保护技术也是现今中国继电保护领域一项突出的技术进步。采用弧光保护系统,从弧光故障到跳闸时间可以做到小于4ms,远远快于传统的继电保护装置,保护人员和设备不受到弧光的危害。电弧光保护技术在电力领域已经趋于成熟并得到成功应用。Along with the rapid development of power industry, the protection plans for voltage levels of 110 kV and above have been fully developed. Plant medium voltage distribution switchgear cabinet is used as the power hinge for the voltage levels from 6 kV （10 kV） to 35 kV. Whether an internal fault would be rapidly removed is very important for the safe operation of the distribution system of the whole plant （substations）. Currently, the arc protection is gradually used at the 35 kV and below distribution cabinet in Grid Corporation. Arc protection technology is also an outstanding technological progress in the field of relay protection. Using arc protection system, the time interval between arc fault and tripping can be less than 4 ms. It is much faster than the traditional relay protection equipment. The workers and equipment are not subject to the hazards of arc. Arc protection technology has been fully developed and successfully applied in the power field.

关 键 词：弧光保护 中压配电开关柜 弧光故障 

分 类 号：TM77[电气工程—电力系统及自动化]