Longshot™
Key Features:
Suitable for both in-service and factory/laboratory PD testing.
For all types of MV, HV and EHV assets including cables, switchgear, transformers and rotating machines.
Voltage range from 3.3 kV to 750 kV.
Short-term OLPD monitoring of up to 48 hours.
Synchronous, wideband (0–200 MHz), 4-channel data acquisition.
Intelligent event recognition differentiates between noise and RF interference from PD activity.
Data acquisition using the PDGold© v8 software and EventRecogniser© module.
Diagnostics and report generation with the PDReader© v8 software. PD site location on long cables with On-line Cable Mapping*.
*PDMap© v8 expansion software module and HVPD Portable Transponder System required.
Benefits:
Detects the early stages of insulation deterioration, providing an early warning against HV insulation faults.
Helps to avoid unplanned outages.
Typical diagnostic OLPD spot-test time of 10 minutes per asset.
Supplied with HVPD's 12-month data analysis (50x free files) and reporting service package.
Provided with tailored training to meet customers requirements.
Available with a wide range of PD sensors for multi-application testing and voltage levels.
Diagnostic OLPD Spot Testing:
Compatible Sensors
HVCC
HFCT
TEV
SMART-TB3™
Rogowski Coil
Bushing Tap
PDGold©
The PDGold© software from HVPD provides
high definition PD signal acquisition.
It is designed specifically for the HVPD
Longshot™ PD Diagnostic System which can
acquire large amounts of data with more
precision than other test units.
The PDGold© v8 software captures several
power cycles of data in a loop, extracting and
saving the relevant PD events which can be
later analysed in the PDReader© v8 data
analysis and report generation software.
PDReader©
The PDReader© software uses an integrated
PD EventRecogniser© module to scan the
power cycle duration traces and extract short
duration, high frequency pulses are the
classified as Cable PD, Local Equipment PD,
and Noise, using knowledge-rule based
algorithms.
The data analysis is straightforward and can
be performed on any Microsoft® Windows®
based workstation or laptop.
The software allows the user to generate full
and summary reports in a flash with a single
click.