Complying Standards:
• DL/T* 1430-2015 Technical guide for on-line monitoring system of transformation equipment.
• DL/T 1432.1-2015 Testing specification for on-line monitoring device of transformation equipment – Part 1: General testing specification.
• DL/T 860-2004 Communication networks and systems for substations.
• Q/GDW* 535-2010 General technical specifications for on-line monitoring devices of transformation equipment.
• Q/GDW 534-2010 Technical guide for on-line monitoring systems of transformation equipment.
• *DL/T stands for “Recommended standards of electric power industry of China”.
• *Q/GDW stands for“Corporation standard of State Grid Corporation of China”.
Key Features:
• All purpose:Can be used for off-line testing, on-line surveying, and on-line monitoring.• Highly Mobile:Compact and lightweight for hand-held usage.Can be installed and removed without modifying structural or electrical characteristics of the power installations.
• Highly Accurate:Testing approaches including UHF, AE, HF, and TEV are combined and cross validated with each other to achieve a high accuracy.
• Go Wireless:With wireless synchronization, multiple detectors can be used together, even at different locations.Adding or removing detectors as needed.
• Continuous Monitoring:Continuously monitoring the PD activities in the on-line mode.
• Intelligent diagnosis:Discharge types and threat levels can be automatically identified, with reference to historical data.
• Robust to interference:Complete suite of interference reducing technologies: Spectrum analysis, frequency-selective filtering, interference separation, and comprehensive shielding.
• Accurate localization:Supports highly accurate electric, acoustic, and electric-acoustic localization of PD.
• Failure alarm:Can set the failure alarms to be sent to terminals and smartphone APPs based on customized thresholds.
• Ingress protection:All devices are IP65 rated.
• Easy Maintenance:Modular design allows modules to be simply replaced when necessary.
Technical Specifications:
• Sensitivity: ≤0.1pC;
• Measuring frequency band: UHF: 300 ~ 1500MHz, AE: 20 ~ 200kHz, HF: 3~30MHz, TEV: 3~100MHz;
• Data storage: Log interval: 1~30min; Number of entries: 1 ~ 100; Storage time: ≥ 1 year;
• Phase synchronization: Frequency: 30 ~ 300Hz; Voltage: AC10 ~ 380; Accuracy: 0.01°;
• Timing synchronization error: ≤50ns;
• Ingress protection IP65;
• Connectivity: 3G/4G cellular network, Fiber optics; Complies with DL/T 860 (IEC61850);
• Power supply: Lithium-ion battery for short-term use and as backup, grid power for long-term installation.
Product Models:
pictures:Model
Name
Units
Channels
Comment
AE
UHF
TEV
HF
XD50WF
Mobile PD Detection & Localization System for Power Systems
2
2
2
2
2
Units can be added as needed.
Sensors Mobile testing for arresters Mobile testing for GIS Monitoring Unit Mobile testing for transformers Wireless Control Platform 
