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Transient overvoltage monitoring and recording system research

Author: LiYouHuai
Tutor: XiaoDengMing
School: Shanghai Jiaotong University
Course: High Voltage and Insulation Technology
Keywords: Overvoltage Online Monitoring Virtual Instrument LabVIEW
CLC: TM862
Type: Master's thesis
Year: 2009
Downloads: 68
Quote: 1
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Abstract


Safe and reliable operation of power systems is to ensure the normal operation of the national economy and other sectors of the premise. Statistics show that the reliability of power system operation depends largely on the system in a variety of electrical equipment insulation levels and working conditions, while the electricity system that often appear in the external and internal over-voltage over-voltage equipment insulation condition affecting one of the most important factor . To transfer power system reliability and power system construction costs are controlled at a more reasonable level , you need to analyze a variety of over-voltage power systems cause of the accident and overvoltage incidents impact on the power system , and as a basis , combined with a variety of protective devices and equipment, the protective properties of the insulation characteristics of the device to determine a reasonable level of insulation to achieve good insulation coordination and overvoltage protection. To achieve the above purpose, over-voltage monitoring and recording is particularly important for the analysis of over-voltage can cause of the accident to provide true information and important basis. This paper analyzes the power systems of various internal and external causes of over-voltage and waveform characteristics , proposed to realize overvoltage monitoring and recording of the technical requirements , and analyzes the domestic representative overvoltage monitoring products advantages and disadvantages , then according to the actual needs, using virtual instruments both from the hardware and software developed by a transient overvoltage monitoring and recording systems. The system is different from other over-voltage monitoring features of the product , with a new signal recognition method that can accurately and reliably identify over-voltage over-voltage accident and store data . The system is in the power system fault analysis and insulation design has practical value.

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CLC: > Industrial Technology > Electrotechnical > High Voltage Engineering > Overvoltage and Its Protection > Over-voltage protection devices
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