Cable Oscillation Wave Partial Discharge Test System

1Introduction

The integrated partial discharge localization system, mainly used for partial discharge diagnosis of medium-voltage cables. The system's testing frequency is:20HzTo several hundred hertz of damped AC voltageDAC）。

The integrated partial discharge location system is primarily used for medium-voltage cable partial discharge diagnostics. The system's test frequency is20HzTo damping AC voltage at several hundred hertzDACThe damping AC voltage generated during the system's testing process can reach up to high levels.30kVOur advanced system hardware and software are integrated for diagnostics, featuring a software system that...VLFPlease provide the Chinese content that needs to be translated into American English.DACThe on-site voltage testing, which combines non-destructive partial discharge testing with dielectric loss measurement, is 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 cables with paper insulation, as well as diagnostic tools.

Damping AC voltage can reach high levels during the system's testing phase.30kVAnd combines advanced system hardware and software for diagnostics, including:

-New transistor technology and laser control technologies, 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 connectivity and integrated 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 coupling capacitors, 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 used to regulate high-voltage pressure. After grounding the system and internal connections are made, it is then connected to the cable being tested.

2Software

The main components of the software are as follows:

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

-Define the test objects.

-Calibrate test circuit.

-Pressure Test

-Test and save test data.

The browsing software is integrated into the system but can also be installed independently on request. The primary uses of the software include:

-Display and manage test data, generate test reports.

-Utilize 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 the execution of its respective function or directly accesses the next operation interface. Click“EscPress the key to return to the system's starting interface.

The interface display and features of the software can be summarized as follows:

Tested Cable: Define the system parameters of the tested cable.

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

Field Diagnostics: Conducting tests and saving data to diagnose power cables on-site.

Review Report: Analyze data and generate test reports.