Portable spare power automatic switching calibrator

Abstract

The invention relates to the technical field of substation equipment inspection, and discloses a portable self-input calibrator, which has a transmission and transformation circuit simulating a primary system pipe network of a substation, including: two analog high-voltage bus circuits, two analog low-voltage user circuits and a power supply, The contacts of the high-voltage DL modules connected to the two analog high-voltage bus circuits are respectively connected to the DC power supply through the circuit breaker; the high-voltage DL module is connected to the analog low-voltage user circuit through the low-voltage DL module and the circuit breaker; A low-voltage subsection DL module is set between them. The invention can realize the convenient, accurate and reliable inspection of the function of the self-injection automatic device. The utility model has the advantages of convenient use, low maintenance and production costs, can avoid the hidden danger of power failure accidents caused by the actual belt switch transmission, improves the reliability of power supply, and provides convenient conditions for the regular inspection of the automatic switching device. It has strong economic and social benefits.

Description

technical field [0001] The invention relates to the technical field of transformer substation equipment inspection, and is especially suitable for a portable backup automatic switching calibrator for testing the logic function of a power backup automatic switching device when primary equipment is not powered off. Background technique [0002] With the application of new technologies, social life is increasingly dependent on power supply, and the reliability of power system power supply has become an important indicator to measure power quality. In order to improve the reliability of power supply, the power supply mode of dual power supply is often used as backup for each other. The importance of automatic switching device for backup power supply can be seen. However, for a long time, how to conveniently, reliably and efficiently test the reliability of the automatic switching device has become a difficult problem in the secondary equipment calibration of the power system. B...

AI Technical Summary

Problems solved by technology

However, for a long time, how to conveniently, reliably and efficiently test the reliability of the automatic switching device has become a difficult problem in the secondary equipment calibration of the power system.

Because there are many parameters in the acquisition system when the standby automatic switching device is working, the action involves a wide range of circuit breakers, and the actual risk of transmission experiments with switches is high.

At present, the general calibrator and the simulated circuit breaker are independent devices, and the wiring is complicated when doing the test of the self-injection device, and the human factors are greatly affected during the test, and the test results are unreliable.

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