Cable Oscillation Wave Detection Report

1Introduction

The integrated partial discharge location system is mainly used for partial discharge diagnostics of medium-voltage cables. The system's testing frequency is:20HzTo a damping AC voltage of several hundred hertzDAC）。

The integrated partial discharge location system is primarily used for medium-voltage cable partial discharge diagnostics. The system's testing frequency is20HzTo several hundred hertz of damped AC voltageDACThe damping AC voltage generated during the system's testing process can reach up to...30kVBy integrating advanced system hardware and software for diagnostics, the software system featuresVLFPlease provide the Chinese content to be translated.DACThe on-site voltage testing, which combines non-destructive partial discharge testing with dielectric loss measurement, represents a fundamental and effective testing method for the operation, maintenance, and repair of cables. It is applicable to nearly all medium-voltage cable types, such as...XPLEAnd the necessary test voltages for paper-insulated cables, as well as diagnostic tools.

Damping AC voltage as high as can be reached during the system's testing process30kV, and utilizes advanced system hardware and software for diagnostics, including:

-Advanced transistor technology and laser control techniques, such as high-voltage transistor switches.

-Electronic components, digital signal processing, such as high-voltage crystal switches, high-voltage sources.

-Digital Signal Processors and Filters

-Wireless connections and built-in computer systems, including partial discharge detectors, control units, and partial discharge analyzers.

1Hardware

High-voltage Units: High-voltage coils, high-voltage voltage dividers, high-voltage switches, partial discharge couplers, coupling units, and partial discharge detectors.

Control Unit: The notebook unit is primarily used for controlling test programs, analyzing test data, and saving test data. External connections are made to high-voltage, with control switches for regulating high-voltage pressure. After grounding the system and internal connections are made, it is then connected to the cable under test.

2Software

The software is primarily composed of the following:

The test analysis software is the main interface for user operations; the software is controlled by a laptop. The software can perform the following actions:

-Define the Test Object

-Calibrate test circuit

-Pressure Test

-Test and save test data.

The browsing software is integrated into the system but can also be installed independently as per customer requests. The primary uses of the software are as follows:

-Display and manage test data, generate test reports.

-Utilize a pulse reflectometer to analyze test data.

-Generate database features.

The user interface is controlled by the mouse and keyboard. Each key on the screen is labeled with its corresponding function. Every active function key allows for either the execution of the respective function or a direct transition to the next operation interface. Click“EscPressing the key will return to the system's starting interface.

The software's interface display and features can be summarized as follows:

Tested Cable: Define parameters of the tested cable system.

Test Calibration: Initiate and execute calibration of the test circuit.

Field Diagnostics of Power Cables: Test operations and data preservation for on-site diagnostics

Review Report: Analyze data and generate test reports.