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Partial Discharge Testing for Cables

Partial discharge (PD) testing provides critical information about the quality of cable insulation and its impact on your critical facility. If your medium- and high-voltage cable system has voids, gaps, or other defects, it’s vulnerable to PD. Left unchecked, these small electrical sparks can erode the insulation, eventually leading to unplanned outages. PD testing for cables helps you prioritize your maintenance resources and repair or replace cables before this failure occurs.

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Best Suited For:
  • Banking, Financial and Insurance
  • Data Center/Colocation/Hosting
  • Healthcare
  • Retail and Wholesale


Improved system reliability occurs when failure-causing PD is remedied
Optimized maintenance and capital expenditures are possible as PD testing helps prioritize equipment requiring maintenance, repair or replacement
Fewer unplanned outages and system downtime results from early identification of PD
Improved risk management happens when PD is regularly monitored and addressed prior to probable failure


Site visit and report provides an opportunity to review your single-line diagram, complete a physical check of your cable system, and document test results and recommendations
Innovative technology enables our test engineers to observe phase-related patterns of discharge, online and in real-time
Online PD testing provides a non-destructive, inexpensive testing option that can be performed while your equipment is energized at normal operating voltages
Permanently mounted sensors installed on hard-to-access equipment and areas that pose a safety concern facilitate safer, more efficient partial discharge detection
Short-term continuous monitoring allows cables to be continuously monitored under load ranging from one hour up to three months
Permanent continuous online monitoring delivers continuous and accurate information on the condition of the most critical cables in your system
Ultrasonics increase the reliability of correct detection of PD when used with other testing technologies
Offline PD testing measures your cable system’s response to a specific stress level and predicts its future performance without creating a fault
Tan-delta testing measures the level of deterioration of cable, detects water trees, and helps predict cable life expectancy
Very low frequency (VLF) testing is used to evaluate insulation deterioration in cables, check the AC integrity of cables, and help prioritize maintenance decisions 

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Products Support Contacts

Showing contacts for Virginia, 20149, USA Change
Chloride Industrial UPS Services
+1 800 442 7489
Service areas of focus: Performance Optimization Services, Preventive Maintenance for Industrial Applications
Emergency Response for Services
+1 800 543 2378
Service areas of focus: Project Services, Performance Optimization Services
Geist Support - Americas (Rack PDU and Watchdog)
+1 888 630 4445
1777 Yolande Avenue Lincoln Nebraska USA
Service areas of focus: Project Services, Performance Optimization Services, Emergency Response, Preventive Maintenance, Preventive Maintenance for Industrial Applications, Remote Services, Spare Parts and Parts Management
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