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- The location and quantity of arrestor and impulse grounding resistance of towers has direct influence on lighting overvoltage. 变电站避雷器安装位置和数量及输电线终端塔的接地电阻对雷电过电压有着直接的影响。
- An impulse grounding mathematical model b ased on spark discharge equivalent radius of extended electrode of transmission line tower is presented. 提出了考虑火花放电等效半径的输电线路杆塔水平伸长接地体冲击接地的数值计算模型。
- A portable test method for impulse grounding resistance is proposed,on base of analyzing the existing calculation and measurement of tower impulse grounding resistance. 在总结现有的杆塔冲击接地电阻的计算测量方法的基础上,研制了便携式杆塔冲击接地电阻测量系统。
- It is pointed out that the impulse grounding resistance is an important factor for the safety of power system,and a new method of measuring grounding resistance is proposed. 指出了电力系统接地网中冲击接地电阻对电力系统接地安全的重要影响,并提出了一种接地测量的新方法。
- Apparatus for Measuring Impulse Grounding Resistance in Power Systems 电力系统冲击接地电阻测量装置
- The fox went to ground under a rocky escarpment. 狐狸钻进了石崖下面的洞里。
- We were seized by a sudden impulse to run. 我们身不由己突然想跑。
- His irresistible impulse to set fire to shoe shop. 他放火烧鞋店的不可抗拒的冲动。
- He bought the house on an impulse. 他凭一时冲动买下了这所房子。
- The ground was covered with ferns. 地面上长满了羊齿植物。
- He lifted a pail of water from the ground. 他把一桶水从地上提了起来。
- Numerical Calculation and Experimental Research of Impulse Grounding Performance of Complex Grounding System 复杂接地系统冲击接地特性的数值计算及试验
- Rachel who died last week was still above ground. 雷切尔上星期去世，现在还没安葬。
- This car really comes into its own on rough ground. 这辆汽车在颠簸的路上才真正显示出它独特的性能。
- They put some wreathes on the ground. 他们把一些花环放在地上。
- He felt an irresistible impulse to jump. 他突然有个无法抗拒的冲动，想跳下去。
- The ground was ploughed and planted with corn. 地翻耕后种上了玉米。
- My uncle bought the house on an impulse. 我叔叔一时冲动买下了那房子。
- He takes his ground on intuition. 他的意见是凭直觉。
- We need a mechanical digger to level the ground. 我们需要一台挖掘机来平整土地。
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries
