| 塑壳断路器分断角速度非接触式检测方法及其应用 |
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| 引用本文： | 章上聪,许海波,吴桂初,舒亮.塑壳断路器分断角速度非接触式检测方法及其应用[J].电子测量与仪器学报,2015,29(7):995-1002. |
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| 作者姓名： | 章上聪 许海波 吴桂初 舒亮 |
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| 作者单位： | 温州大学浙江省低压电器智能技术重点实验室温州325000,1.温州大学浙江省低压电器智能技术重点实验室温州325000;2.温州聚创电气科技有限公司温州325000,1.温州大学浙江省低压电器智能技术重点实验室温州325000;2.温州聚创电气科技有限公司温州325000,1.温州大学浙江省低压电器智能技术重点实验室温州325000;2.温州聚创电气科技有限公司温州325000 |
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| 基金项目： | 浙江省重点科技创新团队项目(2010R50006 17)、浙江省重大科技专项计划(2013C11004, 2014NM005)、浙江省“钱江人才计划”D类计划项目(QJD1302003) |
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| 摘 要： | 提出了一种基于激光位移传感器非接触式测量塑壳断路器分断过程中动触头角位移、角速度的方法。首先建立一个以动触头杠转动支点为顶点,动触头杠闭合和分断状态所在位置为边的三角形;其次,通过激光位移传感器测量触头分断过程中的直线位移和直线速度,最后,利用所建立的三角形,基于余弦定理将直线位移和直线速度,转换成角位移角速度,实现了对塑壳断路器分断过程中转动变量的无损测量。基于本文所提出的方法,分别测量了NM1-630S-3300额定10A、16A、25A断路器在12倍额定电流下触头的分断的角位移、角速度及分断时间,可以发现不同分断容量断路器,分断角速度与分断时间均不同。容量较大时,触头转动的平均角速度较高。碰撞的角速度增大时,电弧的燃烧时间减小。通过研究断路器分断过程的动态特性,可以从试验的角度研究断路器分断性能,为断路器的优化设计提供评判依据。
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| 关 键 词： | 塑壳断路器 角速度 角位移 非接触式测量 |
Non contact measurement method of angular rate in breaking process of MCCB |
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| Zhang Shangcong,Xu Haibo,Wu Guichu and Shu Liang.Non contact measurement method of angular rate in breaking process of MCCB[J].Journal of Electronic Measurement and Instrument,2015,29(7):995-1002. |
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| Authors: | Zhang Shangcong Xu Haibo Wu Guichu and Shu Liang |
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| Affiliation: | The Key Laboratory of Low Voltage Apparatus Intellectual Technology of Zhejiang, Wenzhou 325000, China,1.The Key Laboratory of Low Voltage Apparatus Intellectual Technology of Zhejiang, Wenzhou 325000, China;2.Wenzhou Juchuang Electrical Science & Technology Co. Ltd., Wenzhou 325000, China,1.The Key Laboratory of Low Voltage Apparatus Intellectual Technology of Zhejiang, Wenzhou 325000, China;2.Wenzhou Juchuang Electrical Science & Technology Co. Ltd., Wenzhou 325000, China and 1.The Key Laboratory of Low Voltage Apparatus Intellectual Technology of Zhejiang, Wenzhou 325000, China;2.Wenzhou Juchuang Electrical Science & Technology Co. Ltd., Wenzhou 325000, China |
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| Abstract: | A non contact measurement method for angular rate and angular displacement of MCCB in breaking process is developed based on the laser displacement sensor. Firstly, a triangle is established based on the pivot point of moving contact arm as vertex, and the side of triangle is the location when contact arm is closed and broken. Then, the linear displacement and velocity in breaking process are measured by the laser displacement sensor. Finally, on the basis of cosine theorem, the linear displacement and rate are transformed into angular displacement and rate, respectively. So the nondestructive measurement of the rotational variable to MCCB can be realized. By using this method, the measurement is performed based on different type of MCCBs, rated at 10A, 16A, 25A. It is found that different capacity of MCCB has different angular rate and breaking time. The average angular velocity increases with the increase of the capacity of MCCB. The stagnation time of arc decreases with the increase of collision angular rate. By studying the dynamic characteristics during the breaking process, the breaking performance of breaker can be studied from the perspective of test, thus providing the basis measurement results for the optimal design of MCCB. |
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| Keywords: | MCCB angular displacement angular rate non contact measurement |
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