Pdvigil Portable Systems

Pdvigil Online Systems

Pdvigil Sensors

⇒ Triple Functionalities

1.        PD Detection, Analysis and Diagnostics
2.        History Data Display and Analysis
3.        Cable PD Location Detection  

⇒ Complex PD Analysis, Versatile

1.        Suitable for complex and difficult PD analysis 
2.        Suitable for detecting and measuring PD on almost any type of power equipment

Function I：  PD Detection, Analysis and Diagnostic

• Non-intrusive test on live power equipment, no need to cut-off electricity for testing, no restriction on voltage level.
• Records whole waveform of each discharge pulse received, no omission.
• Accurately identifies PD by extracting features of the received signals in multiple domains and discerning PD from interference with with smart algorithms.
• Able to identify multiple PD sources as well as weak, sporadic and intermittent discharges.
• Self calibration and verification capability.
• Multi input channels, adapting to various sensors (HFCT, TEV, UHF, WBAnt, AE) and detection methods.
• Multi measuring scopes, large dynamic range.
• Automatically detecting noise level and setting denoise threshold, extracting PD signals from noise.
• Analogous filters + digital filters, enables signal analysis in multiple bands.
• Ultra low noise circuitry, multiple layers of noise filtering and suppression.

Function II:  History Data Display and Analysis

• Retrieves and displays  the waveform and features of each recorded discharge signal, completely re-display the discharge phenomenon.
• Side-by-side Comparison:  retrieves and compares the data captured on different power equipment, or on different positions of a same equipment, identifies the sources of the signals.
• History Comparison:  retrieve and compare the data acquired and recorded at different times on a same power equipment, analyse the PD developing trend and speed, evaluate the insulation condition of the power equipment.

Function III: Cable PD Location Measurement

• Accurately measure the PD location along a cable in its live working condition, no need to cut-off power supply，overcome the shortcomings of Damped AC and Ultra-low Frequency measurements that require power outages.
• Long measuring distance, can measure PD location on a cable up to 2km or even longer with high accuracy.