| 1. | Alit automatic line insulation tester
自动线路绝缘测试装置 |
| 2. | Automatic line insulation testing . equipment located in a central office which sequentially tests lines in the office for battery crosses and grounds
自动线路绝缘测试。放置在市话局的设备，对市话局的线路进行线路交叉测试和对地测试。 |
| 3. | The basic principles of on - line insulation monitoring are analyzed , the on - line insulation monitoring system for traction substations is designed
本文分析了绝缘在线监测的基本原理，设计、研制了牵引变电所绝缘在线监测系统，并投入了实际应用。 |
| 4. | Based on above study , a novel local data acquisition and communication unit of bus - module on - line insulation monitoring system in substations is developed
在对以上问题研究的基础上开发了基于总线的电站绝缘在线监测系统的前置数据采集通信单元。 |
| 5. | But most effective approach to be carried out detection on on - line insulation monitoring is to test and abstract weapon system insulation ' s parameter realtime
而对绝缘状态实施监测的最有效方法是实时测试提取武器装备和系统的绝缘参数，即绝缘参数在线监测。 |
| 6. | An integrated on - line insulation monitoring system of high - voltage capacitive equipment is designed and developed , and has been debugged in laboratory . the impact of operation is all right
最终设计与开发出一套完整的高压电容型设备绝缘在线监测系统，目前已完成实验室调试，运行效果良好。 |
| 7. | By taking a direct current on - line insulation monitor as an object the working principles and its structure of double - machine fault - tolerant system , in which 89c52 single chip computer is used as main machine is analyzed
摘要以直流系统线在线绝缘监测仪为对象，分析了以89c52单片机为主机构成的双机容错系统的结构及工作原理。 |
| 8. | Current sensors play a very important part in the on - line insulation monitoring of electric power transmission . generally they are used to measure leakage current of ground wire . at present , use current transformer as insulation monitoring current sensor mostly
电流传感器在电气设备绝缘在线监测系统中占有重要的位置,它一般通过检测设备接地线电流来监测泄漏电流,目前多采用电流互感器作为绝缘监测用电流传感器。 |
| 9. | Namely it is on - line insulation monitoring . in this thesis by analyzing on - line insulation monitoring transition digital waveform based on fft is brought up . at the on - line monitoring system ' s structure of high voltage electric equipment is introduced emphatically
本文论述了开展绝缘在线工作的重要性和国内外开展此项工作的现状和发展趋势，然后分析了目前绝缘在线监测系统存在的问题，提出了基于傅立叶变换的数字波形分析方法。 |
| 10. | Although adsl comes with new digital processing , coding , modulation and error correction technologies , it is also faced with various challenges out of subscriber lines , such as background noise , impulse noise , insertion loss , cross talk , wire size variations , bridge tap , line joints and line insulation , etc . all those factors tend to produce adverse impacts on the performance of high - speed transmission services . firstly , the insertion loss of copper lines increases in proportion to the length of lines
虽然adsl采用先进的数字信号处理技术、编码调制技术和纠错技术，但是在推广adsl业务时，用户线路的许多特性，包括线路上的背景噪声、脉冲噪声、线路的插入损耗、线路间的串扰、线径的变化、线路的桥接抽头、线路接头和线路绝缘等因素将影响高速率传输业务的性能。 |
