XDP Partial Discharge Detector.
XDP Partial Discharge Detector.
The XDP Partial Discharge Detector is used to detect partial discharges, phenomena associated with the
presence of insulation flaws on the underground electrical cables and joints of moderate voltage.
The XDP Partial Discharge Detector allows to check if a designated site to carry out underground workloads
under high voltage is safe or not.
The user sweeps the capacitive sensor on the joints of the cables he wants to inspect and if any are detected,
the XDP then informs him of the shape of the partial discharge signals on many cycles along with the peak
Partial Discharge Detector
|XPD||XDP Partial Discharge Detector|
The XDP allows to check if a designated site to carry out underground workloads under high voltage is safe
or not. The user sweeps the capacitive sensor on the joints of the cables he wants to inspect and if any are
detected, the XDP then informs him of the shape of the partial discharge signals on many cycles along with
the peak value. What's more, the instrument allows, in "analysis" mode, to proceed in a comparative signal
inspection with the help of its own database, which encompasses ten reference signatures in order to
establish a correspondence with the four nearest signatures to the one obtained on the joint.
It is also possible to record the discharge measurement graphically and in audio form along with the date
and the hour of the reading. The user may also listen to his recording on the premises.
The recorded measurements remain stored in memory even when the XDP is shut off.
This allows the transfer of these recordings to a computer upon return from the worksite.
The ten reference signatures can be listened to anytime and can be replaced to enhance the internal
database of the instrument.
Peak measurement value in dB relative to 15 picoCoulomb
Peak detection with a fast numeric circuit (CPLD)
Fast numeric processor (DSP) for the instant analysis of results
Inspection of the wave's shape in high frequency to determine its proximity
Bandwidth reception, without any distortion nor alleviation from the discharge impulses
Automatic interruption of the instrument after 2 min. in idle mode
Automatic interruption of the backlighting after 30 sec.
LCD (Liquid Crystal Display) displays the results in easy to read, big letter casings.
PC(Windows)-interface for the analysis and the follow-up of results and also for the
programming of the signatures
Follow-up of the measurements on the Access database
|Dynamic Range||40 dB, of which 34 dB in automatic gain and + 6 dB software|
|Number of reference signatures||10 signatures|
|Number of sampling per signature||1k|
|Bandwidth||300 kHz to 70 MHz|
|Sampling Frequency||30 MHz|
|Sampling Period||16 cycles of 50 or 60 Hz|
|Number of maximum recordings||100 recordings
Real-time internal clock
|Date||(Year, month, day, H, Min., Sec.)|
|Network Synchronization||By electrical field on the sensor|
|Calibration||Automatic via an injection of signals|
|Adjustments||EEPROM memory in the micro-controller|
|Operating Temperatures||-4°F to +122°F (-20°C to + 50°C)|
|Storage Temperatures||-40°F to 122°F (-20°C to + 50°C)|
0 to 95% non condensed
|Batteries||Six (6) 1,2V 2,1Ah rechargeable "A" NiMh batteries|
12V 1A adapter with a sealed connecter,
available for 110V or 220V
|Recharge Time||3h max.|
128 X 64 point LCD, wide temperature use
60 X 41 mm (2,36 X 1,62 in.)
2 back-lighting intensities (100%, 50%)
203,3 X 114,3 X 50,8 mm
(8 X 4,5 X 2 po.)
|Weight||0,86 kg (1,9 lbs|