Cable Oscillation Wave Test Report

1Introduction

The integrated partial discharge location system is mainly used for the diagnosis of partial discharge in medium-voltage cables. The system's testing frequency is20HzDecades of Damping AC Voltage at Several Hundred HertzDAC）。

The integrated partial discharge location system is primarily used for partial discharge diagnosis of medium-voltage cables. The system's test frequency is20HzAt several hundred hertz of damped alternating voltageDACThe damping AC voltage generated during the system's testing process can reach up to...30kVOur diagnostics are further enhanced by advanced system hardware and software integration, with the software system combining...VLFPlease provide the Chinese content to be translated.DACThe on-site voltage tests, which integrate non-destructive partial discharge testing with dielectric loss measurement, represent a fundamental and effective testing method for the operation, maintenance, and repair of cables. This approach is applicable to nearly all medium-voltage cable types, such as...XPLEAnd the necessary test voltages for cables with paper insulation, as well as diagnostic tools.

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

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

-Electronic components, digital signal processing, including high-voltage thyristor switches and high-voltage power 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 storing test data. External connections are high voltage, with control switches for controlling the high-voltage application. After grounding the system and internal connections are made, it is then connected to the cable being tested.

2Software

The software is primarily composed of the following:

Test analysis software, 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 Testing

-Test and save test data.

The browsing software is integrated within the system but can also be installed independently on customer request. 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 mouse and keyboard. Each key on the screen is labeled with its corresponding function. Each active function key can either perform the corresponding function or directly navigate 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: Testing operations involve diagnosing power cables through testing and data preservation.

Review Report: Analyze data and generate test reports.