Electricity Forum Electricity Today Magazine Arc Flash Training
Intelligent Power Today Magazine
Archives

Transformer Testing & Maintenance

Strategies for Accurate Vibro-Acoustic Monitoring of OLTCs

Vibro-acoustic diagnostics have emerged as a rapid and non-invasive method to monitor and assess the health of On Load Tap Changers (OLTCs) in electrical power systems. This technology detects and analyzes the vibrations and sound patterns generated by OLTCs during operation, helping to identify...
Home Testing Testing & Maintenance

Testing & Maintenance

Vacuum Interrupter Testing

Predicting remainder of field life finally becomes easier

BY FINLEY LEDBETTER, Group CBS

Vacuum interrupters (VIs) have widely replaced older air-magnetic and oil interrupters for circuit breakers rated at one kilovolt (kV) or higher. These devices offer up to 10 times the expected lifetime than newer SF6 (sulfur hexafluoride) gas interrupters.

Unfortunately, nothing lasts forever. Manufacturers predict that most of their interrupters have a service life of 20 years; however, users generally ignore this fact....

Testing & Maintenance Articles

switchgear replacement project

T&D Buyer’s Guide Companies

Testing & Maintenance Videos

G&W Electric – Engineering the Next Evolution of Power

Leveraging Color-Changing Thermochromics for Electrical Inspections

Taking Fusion to Fruition

Testing & Maintenance Products

RUBBER GOODS

VLF AC Hipots E Series

Spark P3 - Universal PD & EMI Analyzer

Testing & Maintenance Shared Media

Catalog

Electrical Transformer Testing Handbook, Volume 6

Catalog

Arc Flash Electrical Safety handbook Vol.11

Catalog

Power Quality And Grounding Handbook Vol.5