XD50WT PD Detection & Localization System for Power Transformers

XD50WT PD Detection & Localization System for Power Transformers

Designed specifically for partial discharge (PD) detection on power transformers, this system integrates Pulse-current, acoustic (AE), HF, and UHF techniques to preform synchronized PD detection and measurements.

Complying Standards:

•   GB/T* 7354-2018 Partial discharge measurements (IEC60270:2000+AMD1:2015).

•   Q/GDW** 11063-2013 Technical specification for ultrasonic partial discharge detector.

•   Q/GDW 11304.5-2015 Technical specification for energized test device of electrical equipment Part5: Technical specification for high-frequency partial discharge detector.

•   *GB/T stands for “National Recommended Standards of China”.

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

Key Features:

•   Highly accurate:Accurately captures valid PD signals and cross validate with multiple means of detection.
•   Industry-leading sensitivity:Sensitivity equal to or better than 0.1pC.
•   Pinpoint localization:Detects PD location with 3D localization technology.
•   Robust to interference:Complete suite of interference reducing technologies: Frequency-spectrum analysis, frequency-selective filtering, interference separation, and comprehensive shielding.
•   Electrically robust:No freezing or data lost after flashover accident.
•   Continuous monitoring:Monitoring PD signals 24/7.
•   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.
•   Synchronization:Wired or wireless synchronization of timing and phase.
•   Flexible unit placement: Sensors and detector units can be placed at convenient locations on transformers.

•   Sensor compatibility:Also supports transformers’ built-in sensors and third-party devices.

•   Easy Install:Detector units and sensors can be easily installed on-site with magnets, straps, or brackets.

•   Power supply compatibility:Compatible with a wide range of HV-testing power supplies.

Technical Specifications:

•   Sensitivity:                              ≤0.1pC;

•   Measuring frequency band:    UHF: 300 ~ 1500MHz, AE: 10 ~ 300kHz, HF: 1~30MHz, Pulse-current: 10~100kHz;

•   Localization error:                   ≤10cm;

•   Timing synchronization error: ≤10ns;

•   Phase synchronization:           Mode: wired or wireless; Frequency: 30 ~ 300Hz; Voltage: AC 10 ~ 380; Accuracy: 0.01°;

•   Connectivity:                            Wi-Fi, Fiber optics, Ethernet;

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

Product Models:


 Model Name Units Channels Comment

XD50WT

PD Detection & Localization

System for Power Transformers

 4 AE UHF TEV HF Units can be added as needed.

8 4 / 4
Pictures:

Sensors

Detector unit

Electric-acoustic PD Localization

HF testing of transformers

UHF testing of transformers

Pulse current testing






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