Transformer substation starting test wireless nuclear phase debugging method

Abstract

The invention relates to a transformer substation starting test wireless nuclear phase debugging method. The method includes the following steps: using a GPS / Big dipper satellite to provide accurate absolute time to a system, supplying a radiofrequency wireless time service module; the radiofrequency wireless time service module using second pulse of the GPS / Big dipper to provide accurate time service pulse to different data acquisition modules; each data acquisition module acquiring a three-phase voltage of a device under nuclear phase, and based on the time service pulse, conducting time stamping on the acquired data, recording generation time of the data, and real-time transmitting the data to a data processing and analyzing terminal through wireless communication; the data processing and analyzing terminal in according with the time when the data is received, processing the data transmitted by the different data acquisition modules, extracting a fundamental component and a phase of the data in different phases, finally displaying data processing results through a display and control platform. According to the invention, the method addresses the problems of large amplitude difference of the device under nuclear phase, containing of harmonic component, and screen cabinet. The method increases accuracy and reliability of work in transformer substation starting nuclear phase debugging.

Description

technical field [0001] The invention relates to a substation start-up test wireless nuclear phase debugging method, which belongs to the technical field of intelligent substation automation. Background technique [0002] During the start-up and commissioning of substations, phase verification is an indispensable task to verify whether the line connection is correct or not, and to avoid swapping wiring with different phase sequences. At present, the multimeter is generally used for the phase verification work in the start-up of the substation. The two probes of the multimeter are connected to the phase sequence of the phase to be verified, and the pressure difference and angle difference of the signals between the phases to be verified are reflected by reading the amplitude of the multimeter. This method has no problem with the test results when the cored phase signals have the same amplitude, phase angle balance, etc., and only contain fundamental wave components. However, ...

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Problems solved by technology

[0004] Aiming at the deficiencies in the prior art, the purpose of the present invention is to provide a simple and efficient method for substation start-up testing and wireless nuclear phase debugging. Problems such as large signal amplitude differences, harmonic components, and long distances between screen cabinets improve the accuracy and reliability of the substation's start-up and phase debugging work

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