High Voltage predictive maintenance / XDP II

Applications

-Quality control of MV/HV equipment on production line (transformers, switchgears, etc.)
-Quality control of the insulators during installation or underground network repair (cable joints, elbows, etc.)
-Online follow-up of the ageing process of the critical components’ insulation (transformers, switchgears, cable joints etc.)
-Safety control prior to work conducted under charge

Partial discharge testing is a PREDICTIVE qualitative analysis tool that can warn of a potential upcoming system failure. The XDP II is a powerful and flexible Partial Discharge Measurement System. The XDP II is an ultra-wide-band amplification system allowing to measure PD activity. It uses a very high speed detection technique to detect PD activities.

The XDP II displays graphically PD wave form and the built-in speaker allows to listen PD activities. Those information can be recorded in the XDPII along with date and time of the reading. The recorded measurements remain stored in memory even when the XDP II is shut off. This allows the transfer of these recordings to a computer upon return from the worksite.

Advantages of the XDP II

-Portable battery operated
-Ease to use
-pC and dB value display
-Several display modes for on-site real time analysis and diagnostic
-Keeps the wave form and edge of PD in memory, with the date and the hour
-Transfers the collected data stored in a computer to ensure the follow-up of the measurements
-Network synchronization for random noise reduction
-Differential technique for noise reduction
-Water-proof and rugged for field used.

Operation

Factory and laboratory diagnostic:

The XDP II when used with  a low noise HV source, HF capacitive coupler and other accessories provide you with a cost effective and powerful PD test system for your MV/HV network components such as transformers, switchgears, arresters, etc.

Energized diagnostic:

Capacitive spatula or inductive sensors used with the XDP II allow PD diagnostics and analysis on cable accessories (joints, elbows, T elbows, terminations, etc.). Those sensors detect the electric or magnetic field generated by PD.
Bi-phase coupler used with the XDP II on switchgears uses the capacitive voltage dividers of the VPIS to detect internal high frequencies of by PD.