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1、科聚R产 品 说 明 书金 属 氧 化 物 避 雷 器 Metal Oxide Surge Arresters科大创新股份有限公司科聚分公司USTC CHUANGXIN CO. LTD., KEJU BRANCH- 1 - 科大创新股份有限公司科聚分公司 KEJU BRANCH, USTC.CHUANGXIN CO.,LTD地址：中国安徽合肥市长江西路669号 邮编：230088Add： 669 Changjiang West Road Hefei Anhui 230088 P.R. China.电话(TeL): 0086-551-5329599 传真(Fax): 0086-551-53296
2、18 E-mail：kejumail.cx- http:/ - 1 -产品说明书科大创新股份有限公司科聚分公司金 属 氧 化 物 避 雷 器Metal Oxide Surge Arresters（MOA）无间隙氧化锌避雷器是目前国际上最先进的过电压保护器。它用于保护电气设备免受大气过电压和操作过电压的损坏，是电力系统安全运行的必备设备。本公司从1984年开始生产氧化锌压敏电阻，产品质量居国内领先，阀片残压比小，老化性能好，组装成避雷器已通过原能源部及机电部的联合鉴定。1994年进一步通过电力部的电力设备及仪表质量检验测试中心的检测，证明阀片荷电率可提高到87%，能满足原电力部安检司及新国标GB
3、 11032-2000关于提高部分避雷器额定电压和持续运行电压的要求。1998年通过ISO9001国际质量体系认证，并获得电力部成套局、水电水利规划局颁发的“入网证”，产品列入国家经贸委颁发的“全国城乡电网改造推荐设备名录”。本公司产品全部满足或优于GB 11032-2000、IEC 60099-4及其他相关部标。Metal oxide surge arrester without gaps is the most advanced over-voltage protector in the world. It is used in protecting electrical equipmen
4、t to avoid damage from atmospheric over-voltage & operational over-voltage; it is indispensable equipment in safe run of power system.Our company has manufactured zinc oxide varistor (ZnO) since 1984. The quality of our products is one-up in china, its residual voltage ratio is little and ageing per
5、formance is good. Our arresters, which are made of the varistor, have been approved by former energy sources ministry and machinery & electricity ministry of China. In 1994, our products passed the examines by the testing center of electric power equipment and instrument quality of Chinese electric
6、power ministry again; the charge ratio of it was proved that may raise 87%. So our products can satisfy the requirement of former electric power safety examine ministry of China & the new Chinese national standard GB 11032-2000 about part arresters rated voltage & continuous operating voltage being
7、boosted. Our company has passed the certificate of ISO9001 international quality system in 1998, and has gained the authorization certificate by the whole set bureau of electric power ministry and the programming bureau of water & electricity and water conservancy of China, the products of our compa
8、ny was brought into the directory of recommendatory equipment for city & countryside all over the China electric-network reconstructing by the committee of economy & trade of China.Our products all can be satisfied with or be advance of GB 11032-2000、IEC 60099-4 and other correlative department stan
9、dards.原理特点Principle and characteristic避雷器内装具有优良非线性伏安特性的氧化锌压敏电阻片（其V-A特性如图1所示），在正常工作电压下呈高阻，泄漏电流仅微安级； 过电压袭来时立即转为低阻，释放能量，并限制过电压幅值；过电压消失后又立即恢复高阻，保证电力系统正常运行。由于氧化锌的这一优良特性，使避雷器动作迅速，性能稳定，结构简单，体积重量减小，维护简便，通流容量大，残压低，寿命长。图1 氧化锌电阻片V-A特性fig.1 ZnO V-A CharacteristicThe zinc oxide varistor flake installed within ar
10、rester has excellent nonlinear volt-ampere characteristic (itsV-A characteristic is shown as fig.1). In normal operating voltage, it displays large resistance, its leaking current is onlymicroampere grade. While over-voltage harassing attacking, it translates low resistance immediately, releases ene
11、rgy and limits over-voltage range; it resumes large resistance immediately after over-voltage disappear, and ensurs electric power system running safely. Resultingly zinc oxide has the excellent characteristic, which gets arresters action rapid、structure simpleness、volume and weight decrease、mainten
12、ance simpleness and convenience、current capability large、residual voltage lowness and life lasting.使用条件Conditions of use1. 户内外均可，环境温度 40+402. 太阳光最大辐射不超过1.1kW/m23. 海拔不超过1000m(超过选用高原型)4. 电源频率48Hz62Hz5. 长期施加在避雷器上的工频电压应不超过避雷器的持续运行电压6. 最大风速不超过35m/s，地震烈度8度及以下7. 顶端水平拉力：200kV产品980N，100kV产品490N，51kV产品294N，其余
13、产品147N1. Indoor and outdoor may be, ambient temperature within the range of -40 to +40；2. Maximum solar radiation should not exceed 1.1kW/m2;3. No more than 1000m above sea-level (if it exceed the height, please select and use the products suitable for plateau area)4. Power frequency within the rang
14、e of 48Hz to 62Hz;5. The power frequency voltage which continuously applied on MOA should not exceed the continuous operating voltage of MOA;6. Maximum wind velocity should not exceed 35m/s, earthquake intensity is eight degree and below;7. Horizontal pull on the top of MOA: 200kV MOA 980N, 100kV MO
15、A 490N, 51kV MOA 294N, and other MOA 147N. 使用维护Maintenance for use1. 经常测量运行电压下的泄漏电流 (全电流或其阻性分量) ，应不超过规定值，并记录观察比较。2. 有条件应定期测量直流1mA下参考电压，不得低于规定值。3. 无间隙避雷器绝对不允许做工频放电电压试验，不得随意破坏密封打开避雷器。1. Continuously measuring leaking current under operating voltage (all current or resistance current), it should not exceed stated value, besides recording、observing and comparing them. 2. Reference voltage under d.c.1mA should be measured termly if condition maybe allowed, it should no be low than stated value.3. Metal oxide surge arrester without gaps is
