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The Dissolved Gas Analysis Toolkit

Dissolved gas analysis: addressing the challenges of collecting samples BY DONAL SKELLY, GE’s Digital Energy business Dissolved gas analysis (DGA) is a technique for identifying and quantifying the gas formed in oil-filled electrical equipment because of either the natural aging of oil and paper...

Cable Testing Comes of Age - One Cycle at a Time

Field Testing of MV and HV cables has come a long way in recent decades. Gone are the days of old, when the traditional DC (Direct Voltage/Current) hipot was the recommended method for testing these modern cables that form the critical backbone of the distribution electrical power network....

Line Leakage Testing: Is It Right For Your Application

The Line Leakage test (LLT for short) is most often specified to be performed as a type test in a design or engineering laboratory or as a routine production line test on medical devices right before they ship. Not as commonly performed as a Dielectric Withstand or Ground Bond test in a production...
Substation Testing

Circuit Breaker Lubrication

Developing circuit breaker lubrication procedures BY RICK YOUNGBLOOD, Doble Engineering Company Circuit breaker analyzers are used to determine operating speeds and velocity. This information enables the tester to determine if a breaker is safe to place back into service. The data recorded by a...
Home HV Testing

HV Testing

Solving Underground Cable Problems with Partial Discharge Testing

How to prevent failure with partial discharge testing

BY HENNING OETJEN, Megger

Partial discharge (PD) measurements are increasingly used as a reliable and non-destructive diagnostic method to detect weak spots in the insulation of underground cables. Routinely, partial discharge measurements are utilized in laboratories for testing cable reels prior to commissioning and in the field to verify installation quality.

Typically, many factory-testing standards require that workers use a 50/60 hertz (Hz) high-voltage...

HV Test Equipment Articles

MRVI
FLIR Thermal Camera T860

T&D Buyer’s Guide Companies

HV Testing Videos

ON-GUARD Automated Lubrication System

SDT340 Ultrasound Data Collector

ALT Series AC Hipots - Product Training Video

HV Testing Products

PT16F Series

AEMC 6255 Micro-Ohmmeter with DataView® Software (Up to 25A)

M5500 - Sweep Frequency Response Analyzer

HV Testing Shared Media

Catalog

Electrical Testing & Maintenance Handbook Volume 5

Catalog

Very Low Frequency Ac Hipot Test Sets - Vlf Series&E-Series Product Catalog

Catalog

Electricity Today T&D Magazine - Reliable Power Testing January&February 2021 Special Edition