When electrical apparatus such as switchgear, transformers, insulators or disconnects and splices fail, the results can be catastrophic. This is just as true in industrial plants as it is in the power transmission and distribution side. Electrical discharges such as arcing, tracking or, in higher voltages, corona have the potential to create equipment failure and costly downtime. In addition, the problems of RFI and TVI impact on our valuable communication networks.

As part of a comprehensive electrical preventative maintenance program or as a stand-alone service, ultrasound inspections may be performed on both open access and enclosed electrical equipment at all voltages (low, medium, and high). Ultrasound technology can be implemented by itself or in conjunction with existing systems such as infrared and vibration analysis for better condition based monitoring results.

Because ultrasonic survey testing is non-contact and nondestructive testing (NDT), there is no need to interrupt system production or plan for costly system shutdowns. Our experienced Ultrasonic Technicians inspect your electrical equipment under normal loads and operating conditions. By performing an ultrasonic scan of your electrical system in ‘real time’ our ultrasonic survey inspections can help you understand the practical impacts of emerging or existing electrical component problems.

ASSETMATRIX Ultrasonic testing services for electrical equipment uses ultrasound technology to detect high frequency sounds related to electrical discharges resulting from the ionization of arcing, tracking and corona.  

The ultrasonic probe is used to identify any unusual electrical noise such as arcing, tracking and corona within the equipment, which produce ionization and disturb the surrounding air molecules. An ultrasonic probe detects high frequency sounds produced by these emissions and translates them down into the audible ranges.

The specific sound quality of each type of emission is heard in headphones while the intensity of the signal is observed on a display panel. These sounds may be recorded and analyzed through highly-specialized ultrasound software for a more accurate diagnosis. Normally, electrical equipment should be silent, although some equipment such as transformers may produce a constant hum, or some steady mechanical noises. These should not be confused with the erratic, sizzling frying, uneven and popping sound of an electrical discharge.

ASSETMATRIX’s ultrasonic testing specialists provide full-service testing solutions that can identify electrical system issues before they lead to disruptions, downtime and in server cases, failure or safety issues.