Relay protection device mutual inductor plate adjusting system and method

Abstract

The invention discloses a relay protection device mutual inductor plate adjusting system and method, and relates to the technical field of electric power. The adjusting system comprises a calibrationsource, a calibration device and an upper computer, and every two of the calibration source, the calibration device and the upper computer are connected with each other. The calibration source provides voltage and current analog quantity for the calibration process; the calibration device is used for calibrating the mutual inductor board, reading and writing calibration coefficients and identification codes and interacting with an upper computer; and the upper computer is configured with upper computer software, and the upper computer software is used for storing board card information and calibration coefficients of the mutual inductor boards and providing statistical analysis of the defective rate and consistency of the mutual inductors in batches. According to the relay protection device mutual inductor plate adjusting system and method, different types of mutual inductor plates can be compatible, the function of calibrating the mutual inductor plates in batches is achieved, the calibration efficiency and the calibration universality are improved, and powerful data support is provided for use of the mutual inductor plates in batches.

Description

technical field [0001] The embodiments of the present invention relate to the field of electric power technology, and in particular to a system and method for adjusting a transformer board of a relay protection device. Background technique [0002] As an important part of the secondary system of the substation, the relay protection device can quickly identify the fault and abnormal working state of the electrical equipment according to the parameters such as current, voltage and power factor angle, issue an alarm quickly and cut off the fault point in time, thereby improving the system The reliability of operation ensures to provide users with safe and continuous power to the greatest extent. The prerequisite for the relay protection device to make accurate judgments is the accuracy of the external input, especially the electrical parameters mainly voltage and current. Whether it is the conventional sampling in the intelligent device or the conventional device, the collecti...

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present invention provides a transformer board calibration system and method for a relay protection device, which solves the problems of low calibration efficiency, inconvenient calibration methods, troublesome transformer board replacement, and lack of manual transformer board evaluation.

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