◆ 基本原理 Keyston |
氧化锌避雷器是目前国际最先进的过电压保护器。由于其核心元件采用氧化锌电阻片,与传统碳化硅避雷器相比,改善了避雷器的伏安特·眭,提高了过电压通流能力,从而带来避雷器特征的根本变化。当避雷器在正常工作电压下,流过避雷器的电流仅有微安级,当遭受过电压时,由于氧化锌电阻片的非线性,流过避雷器的电流瞬间达数千安培,避雷器处于导通状态,释放过电压能量,从而有效地限制了过电压对输变电设备的侵害。 |
The zinc oxide arrester is the most advanced over—voltage protector in the world.Due to make the resistor disc of core component mainly adopt zine oxide arrester.Compared with the conventional silicon carbide arrester,this presciption of the product improves greatly the volt—Ampere characterisics of the resistor disc and increased through—current capabil—ily at over-voltage so as to bring a radical changes for the characteristics of the a rresters.Under the circumstance of no rmal ope rating voltage,the current through the arrester is just on microampere degree. When suffered from over—voltage,the arrester’s excellent nonlinear characte ristics will make the current through the arrester increase to several thousand amperse,while the arrester will be under the circulating state and release over— voltage energy so as to protecting the power thansmission equipmentsagainst the damage caused by the over—voltage |
◆ 用途特点 Application&Characteristics |
氧化锌避雷器用于保护交流电力系统的电气设备免遭大气过电压 产品性能符合GB11032-2000,IEC60099-4,IEEE.C6211标 和操作过电压损坏。 准技术要求。 The zinc oxide arrester applies to protect the elect rical equipment in The technical performance of the prodect is in conformil AC power system against the damage resulted from atmospheris to GB 110322000,IEC60099-4&lEEE.C62.11 standard over-Voltage and ope rational over-voltage technic requirements. |
◆ 使用条件 Condition of Use |
●环境温度不高于+40℃,不低于-40℃。 ●海拔高底不超过1000—2000m(高原地区应在订货时注明) ●交流系统频率50Hz或60Hz ●长期施加在避雷器上工频电压不超过避雷器持续运行电压 ●最大风速不超过35m/s ●地震烈度7度及以下地区 ●污秽地区要注明 The ambient ai r tempe ratu res is no higher than+40℃, no Iowe rthan -40℃. The altitude above sea level does not exceed 1000—2000m(the altiplanoarea shouId be indicated when order). AC system frequency 50Hz or 60Hz. Industrial frequency voltage brought to bear on arrester for a long time does not exceed arrester’s sustained operation voltage. Maximum wind speed does not exceed 35m/s The earthquake intensity does not exceed 7 degrees. The fiIthy a rea shouId be given clear indication. |
◆技术性能Technical performance |
氧化锌避雷器用于保护交流电力系统的电气设备免遭大气过电压 产品性能符合GB11032-2000,IEC60099-4,IEEE.C6211标 和操作过电压损坏。 准技术要求。 The zinc oxide arrester applies to protect the elect rical equipment in The technical performance of the prodect is in conformil AC power system against the damage resulted from atmospheris to GB 110322000,IEC60099-4&lEEE.C62.11 standard over-Voltage and ope rational over-voltage technic requirements. |
◆型号说明Type instruction |
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