| 电流上升率和电流增量保护的定量测量 |
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| 引用本文： | 张目然.电流上升率和电流增量保护的定量测量[J].都市快轨交通,2007,20(3):46--48. |
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| 作者姓名： | 张目然 |
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| 作者单位： | 广州市地下铁道总公司,广州,510030 |
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| 基金项目： | 广州地铁2号线工程建设
（计投资【1999】1548号 |
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| 摘 要： | 介绍广州地铁2号线直流牵引系统DPU96保护控制单元的基本保护功能,阐述电流上升率保护和电流增量保护的基本原理;针对目前DPU96校验采用定性测量方法的不足,提出一种模拟现场条件定量测量的方法,对提高校验精确度具有一定价值.
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| 关 键 词： | 电流上升率保护 电流增量保护 定量测量 |
| 修稿时间： | 2007-01-202007-04-12 |
Quantitative Measurement of Current Step Change Protection and Rate of Current Rise Protection |
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| Zhang Muran.Quantitative Measurement of Current Step Change Protection and Rate of Current Rise Protection[J].Urban Rapid Rail Transit,2007,20(3):46--48. |
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| Authors: | Zhang Muran |
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| Institution: | Guangzhou Metro Corporation, Guangzhou 510030 |
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| Abstract: | This paper introduces the protective functions of DPU96 digital protective units and controllers on Guangzhou Metro Line 2 and the principles of current step change protection as well as rate of current rise protection.Taking into consideration the insufficiencies in the qualitative measurement of DPU96 nowadays, the paper introduces a method of quantitative measurement simulating the actual conditions which is useful to obtain high accuracy in calibration. |
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| Keywords: | current step change protection rate of current rise protection quantitative measurement |
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