Power transmission line fault simulation test device

Abstract

The invention discloses a power transmission line fault simulation test device, relates to the technical field of power transmission network fault monitoring, and solves the problem that various short-circuit grounding fault types of a power transmission line mainly depend on artificial experience analysis and judgment and online monitoring and diagnosis of the power transmission line fault cannotbe realized. The device comprises a standard voltage divider, an oscilloscope, a high-voltage generation device, an analog wire, a monitoring terminal, an analog grounding resistor and a data centerfor receiving data of the monitoring terminal. The high-voltage generation device, the monitoring terminal and the analog grounding resistor are electrically connected to the analog wire. The output end of the high-voltage generating device is electrically connected with the input end of the standard voltage divider and the input end of the monitoring terminal, the oscilloscope is electrically connected with the standard voltage divider, the monitoring terminal is connected to the analog wire in series, and the analog ground resistor input end is electrically connected with the monitoring terminal output end. The analog grounding resistor comprises a slide rheostat and capacitors connected in parallel. Corresponding test fault simulation analysis of the power grid can be carried out through the device.

Description

technical field [0001] The invention relates to the technical field of transmission network fault monitoring, in particular to a transmission line fault simulation test device. Background technique [0002] Transmission line fault monitoring Online location of fault points has covered transmission lines of all voltage levels in the power grid. Compared with traditional monitoring methods in substations, the accuracy of fault location is greatly improved, and the maintenance efficiency of power grid transmission lines is greatly improved. [0003] However, for the causes of various types of transmission faults on transmission lines, it is still mainly based on manual experience analysis and judgment, and the online monitoring and diagnosis of transmission line faults has not been realized. In view of different types of faults in the transmission line, the contact resistance at the short-circuit point is different, which greatly affects the accurate diagnosis of the fault caus...

AI Technical Summary

Problems solved by technology

[0004] In view of the above deficiencies, the present invention provides a fault simulation test device for transmission lines, which solves the problem that various types of short-circuit grounding faults in transmission lines mainly rely on manual experience analysis and judgment and fail to realize on-line monitoring and diagnosis of transmission line faults.

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