XD50WX PD Detection & Localization System for Power Cables

Designed specifically for partial discharge (PD) detection and localization on power cables, this system combines HF and acoustic (AE) PD detection methods to assess the PD status of target cable and to pinpoint the location of the insulation breakdown through synchronized measurements.

Complying Standards:

• GB/T* 3048.12-2007 Test methods for electrical properties of electric cables and wires. Part 12: Partial discharge test.

• DL/T** 1253-2013 Code of operation for power cable line.

• Q/GDW*** 11316-2014 Test code for power cables.

• Q/GDW 11223-2014 Technical specification for state detection for high voltage cable lines.

• *GB/T stands for “National recommended standards of China”.

• **DL/T stands for “Recommended standards of electric power industry of China”.

• ***Q/GDW stands for “Corporation standard of State Grid Corporation of China”.

Features:

•  High compatibility:Works with cables of various voltage levels and internal structures.
•  Automated testing:Fully automated testing process captures discharge characteristics and locations of key-events from partial discharges to flashovers.
•  Industry-leading sensitivity:Using HF method as main measurement.Sensitivity equal to or better than 5pC.
•  Accurate localization:Supports highly accurate electric, acoustic, and electric-acoustic localization.
•  Robust to interference:Complete suite of interference reducing technologies: Spectrum analysis, frequency-selective filtering, interference separation, and comprehensive shielding.
•  Diagnosis and analysis:Full range of analysis assisting graphical interfaces: PR, PRPD, PRPS, Correlation, and Selecting/masking windowing.Built-in interference and discharge patterns for automated signal classification.
•  Electrically robust:No freezing or data lost after flashover accident.
•  Synchronization:Wired or wireless synchronization of timing and phase.
•  Highly adaptable:With wired and wireless connectivity, the system is suitable to be used on-surface or inside tunnels.
•  Power-supply compatibility:Compatible with a wide range of HV-testing power supplies.

Technical Specifications:

• Sensitivity: ≤5pC;

• Measuring frequency band: AE: 20 ~ 200kHz, HF: 3~30MHz;

• Timing synchronization error: ≤50ns;

• Phase synchronization: Wired or wireless; Frequency: 30 ~ 300Hz; Voltage: AC10 ~ 380; Accuracy: 0.01°;

• Connectivity: 3G/4G cellular network, Fiber optics;

• Power supply: Removable lithium-ion battery, 24V/5Ah. Continuous working time > 8hrs.

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