避雷器

The paper discussed the protection of incoming section and lightning protection of transformer in view of protection function of lightning arrester in 220 kV substation,and proposed feasible and detail means for operation maintenance.

从220 kV变电所内避雷器的保护作用、进线段的保护、变压器的防雷保护等几方面进行阐述。

With widespread availability in circuit breaker, lightning arrester and laser et al, more attention was paid to the breakdown character of strontium titanate system ceramic capacitor used in high voltage.

随着SrTIO3系高压陶瓷电容器在断路器、避雷器和激光器等高压设备上的广泛应用，它在高电压下的击穿特性受到人们愈来愈多的关注，但一直无人对此进行深入系统的研究。

The results show that the overvoltage on substation equipments will increase with increases of the pole height,the pole surge ground-resistance in incoming lines and the distance between the position of lightning arrester and substation equipment.

仿真结果表明：随着进线段杆塔高度的增加、冲击接地电阻的增大以及避雷器与被保护设备间距离的增长，设备所遭受的过电压值随之增大。

France Soule, Eurotect, Germany OBO, domestic power supply and signal Lightning arrester device brand variety, complete specifications.

法国Soule、Eurotect、德国OBO、国产电源避雷器和信号防雷器多款品牌，规格齐全。

Generated by lightning impulse testing system are used to test many kinds of electrical devices and insulation materials,such as SPD,lightning arrester,etc.

0引言雷电冲击测试系统广泛应用于电力系统、通信系统、邮电系统、输变电设备和电子元件生产企业以及铁道部门等，其产生的冲击电压(1.2/50μs等波形)、冲击电流(4/10、8/20、10/350、10/1000μs等波形)用于对诸多电气设备和绝缘材料，如SPD、避雷器等进行雷电冲击试验，也可以进行冲击联合试验等科学试验。

Finally, according to voltage with compute the electric current choose once equipments, including circuit breaker, insulate the switch, fuse, voltage transformer, current transformer, lightning arrester, busbar and electric cable and so on, then according to compute the result of the short-circuit electric current with designs the request to once equipments proceed check to break the ability of flowing and stable degrees of short circuit about moving and hot.

最后，根据电压和计算电流选择一次设备，包括断路器、隔离开关、熔断器、电压互感器、电流互感器、避雷器、母线和电缆等，再根据短路电流计算结果和设计要求对一次设备进行断流能力和短路动稳定度、热稳定度的校验。

Products: electrical categories are: power plant equipment, high-pressure sulfur hexafluoride, outdoor vacuum circuit breakers, power transformers, transformer, lightning arrester, fuse, isolating switch and various electrical components.

经营产品：电器类有：电站设备、高压六氟化硫、户外真空断路器、电力变压器、互感器、避雷器、熔断器、隔离开关及各种电器元件。

With the lightning rod, the arrester and the overhead static cable to the transformer substation house, the electrical equipment and the turnover air line make the anti-radar protection, effective had prevented strikes the thunder and the invasion thunder electric wave straight to the power equipment damage.

用避雷针、避雷器和避雷线对变电所的房屋、电气设备和进出架空线做防雷保护，有效的防止了直击雷和入侵雷电波对电力设备的损坏。本设计还对变电所的接地做了说明。

Application : the company's operating system for the main 110kv and above voltage level voltage transformer, current transformer, the host changes the drive pipe, coupling capacitor, the host changes the ferrite core, lightning arrester.

应用范围：本系统主要应用于运行中的110KV及以上电压等级的电压互感器、电流互感器、主变套管，耦合电容器、主变铁芯、避雷器在线检测。

Zinc Oxide Lightning Arrester has good current voltage characteristic, protective value, impulse response features, multiply thunder resistant, smear resistant and has the ability of running overvoltage. The product safely protects transform equipment and has the features of simple structure, convenient installation and maintenance and long use life.

一、特点 Features 本公司生产的氧化锌避雷器具有良好的伏安特性和优异的保护性能及冲击响应特性、高耐受多重雷及操作过电压能力、良好的耐污性能等优点，并且结构简单，安装维护方便，使用周期长，能对输变电设备提供最佳保护。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。