电力系统保护与控制
電力繫統保護與控製
전력계통보호여공제
POWER SYSTM PROTECTION AND CONTROL
2013年
14期
130-135
,共6页
弧光保护%中压配电开关柜%弧光故障
弧光保護%中壓配電開關櫃%弧光故障
호광보호%중압배전개관거%호광고장
arc protection%medium-voltage distribution switchgear cabinet%arc fault
随着电力行业的快速发展,110 kV及以上电压等级均已有比较成熟的保护措施,6 kV(10 kV)到35 kV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35 kV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4 ms,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。
隨著電力行業的快速髮展,110 kV及以上電壓等級均已有比較成熟的保護措施,6 kV(10 kV)到35 kV這箇電壓等級範圍內的廠用中壓配電開關櫃為供電繫統的供電樞紐,在髮生內部故障時是否能迅速切除故障,對全廠(變電站)配電繫統的安全運行至關重要。目前各電網公司在35 kV及以下配電櫃正逐步應用弧光保護,弧光保護技術也是現今中國繼電保護領域一項突齣的技術進步。採用弧光保護繫統,從弧光故障到跳閘時間可以做到小于4 ms,遠遠快于傳統的繼電保護裝置,保護人員和設備不受到弧光的危害。電弧光保護技術在電力領域已經趨于成熟併得到成功應用。
수착전역행업적쾌속발전,110 kV급이상전압등급균이유비교성숙적보호조시,6 kV(10 kV)도35 kV저개전압등급범위내적엄용중압배전개관거위공전계통적공전추뉴,재발생내부고장시시부능신속절제고장,대전엄(변전참)배전계통적안전운행지관중요。목전각전망공사재35 kV급이하배전거정축보응용호광보호,호광보호기술야시현금중국계전보호영역일항돌출적기술진보。채용호광보호계통,종호광고장도도갑시간가이주도소우4 ms,원원쾌우전통적계전보호장치,보호인원화설비불수도호광적위해。전호광보호기술재전력영역이경추우성숙병득도성공응용。
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.