作者：刘柱揆¹, 严跃², 耿开胜², 丁心志³

作者单位：1. 云南电网电力科学研究院, 云南 昆明 650217;
2. 南京五石金传感器技术有限公司, 江苏 南京 210023;
3. 中国南方电网公司电能计量重点实验室, 云南 昆明 650217

关键词：电弧光;光学转换;光电变换;脉冲检测;紫外光检测;灵敏度阈值

摘要：

实验研究低压（220 V/200 A）短路电弧和高压（20 kV）电离电弧的光谱及强度特征，证实电弧光以紫外光和可见光为主要成分。通过定量测量电弧光的强度，得出低压短路和高压电离电弧光中紫外光强度占其总强度的70%以上，并基于该结论利用光学转换、光电变换原理及脉冲检测技术开发一种新型的紫外电弧光传感系统。在施加滤光设备的措施下测量电弧光，得出同一电弧光中1～10 mW/cm2的紫外光强度对应的可见光照度为5～20 kLux，提出利用该强度范围作为电弧光保护装置光学检测单元校验标定和检测灵敏度的阈值范围的观点。

Quantitative analysis of arc light intensity and calibration method of its detector

LIU Zhukui¹, YAN Yue², GENG Kaisheng², DING Xinzhi³

1. Yunnan Power Grid Corporation Electric Power Research Institute, Kunming 650217, China;
2. Nanjing Five Stone Golden Sensing Limited Company, Nanjing 210023, China;
3. Electric Power Measurement Key Laboratory of China Southern Power Grid Corporation, Kunming 650217, China

Abstract: The characteristics of arc light with ultraviolet and visible light as the main ingredients are verified by studying the spectrum and intensity features of low voltage(220 V/200 A) short circuit arc and high pressure (20 kV) ionization arc by experimental method. The result that the ratio of ultraviolet intensity in either low voltage arc or high pressure ionization arc to the total is 70% is worked out in quantative measurement of arc light intensity, and a new ultraviolet arc light sensing system is developed by using optical conversion and photo-electric conversion principles and impulse detection technology based on the result. By applying optical filter in arc intensity measurement, 5-20 kLux visual light intensity corresponding to 1-10 mW/cm² ultraviolet intensity in the identical arc is provided. The idea that using the intensity range as the range for calibrating the optical detecting unit of arc light protection apparatus and detecting the sensitivity threshold is proposed.

Keywords: arc light;optical conversion;photo-electric conversion;impulse detection;UV detection;sensitivity threshold

2016, 42(8): 83-87  收稿日期: 2015-10-23;收到修改稿日期: 2015-11-16

基金项目: 

作者简介: 刘柱揆(1974-),男,高级工程师,主要从事弧光保护和配网方面的生产和科研工作。

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