Electric quantity acquisition and test analyzer and method for power system

Abstract

The invention discloses an electric quantity acquisition and test analyzer and an electric quantity acquisition and test method for a power system, and relates to a multi-channel electrical test analyzer which is not common in ground, has high isolation, performs synchronous high-speed acquisition, can adjust recording time and adjust sampling frequency and is applied to various voltage classes of the power system, and an electrical test method. An acquisition and test analyzer which acquires data at high speed and automatically records and stores and displays transient electric quantity is adopted. The analyzer can simultaneously and synchronously record a transient waveform, the transient waveform of the electric quantity can be automatically or manually recorded, and overvoltage, inrush current, harmonic waves and the like of various transient waveforms are calculated. The sampling frequency and the recording time are adjustable. The device adopts an embedded operating system and a transmission control protocol (TCP) / internet protocol (IP) standard communication protocol, can realize remote control and synchronization control of the same instrument, and is suitable for a test environment with a complex power system. Steady and transient electric quantity is measured under various working conditions, data can be analyzed and processed, and the analyzer and the method have wide application in debugging, operation and scientific research of the power system.

Description

technical field [0001] The invention relates to an instrument and method capable of performing transient measurement of various electrical tests in a power system, in particular to a multi-channel, non-common ground, high isolation, synchronous high-speed acquisition, adjustable recording time, and adjustable sampling frequency It is applicable to electrical test analyzers and methods for various voltage levels of power systems. Background technique [0002] Traditional methods often use optical oscilloscopes, tape drives, fault recorders, and some advanced precision measuring instruments in the measurement of the transient parts of various electrical quantities in electrical tests. They more or less have the following: Main problems: unable to automatically start recording, low acquisition speed, few channels for synchronous recording, common ground for each channel, little or no software analysis function for measured electrical parameters, etc. The electrical quantity ac...

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Problems solved by technology

[0005] The purpose of the present invention is to solve the key technology of the transient waveform recording of the electrical test and provide a method for recording the transient waveform of the electrical test at each voltage level in view of the deficiency of the existing power system electrical test transient measurement technology

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