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Detector identifies electrical discharge in bearings

SKF (UK) Ltdvisit website

 

Detector identifies electrical discharge in bearingsSKF is launching an Electrical Discharge Detector Pen that enables electrical discharge in bearings to be detected quickly and remotely. The TKED 1 instrument can be used as part of a predictive maintenance programme to minimise the effects of electric currents on bearings used in electric motors.

Electrical discharges are a result of motor shaft voltages discharging to earth through the bearing, causing electrical erosion, lubricant degradation and, ultimately, bearing failure. The increasing use of variable-frequency drives has made the problem more common and severe.

Designed to detect electrical discharges in a non-contact manner, the Electrical Discharge Detector Pen enables quick diagnosis of electrical discharge. The number of electrical discharges counted is displayed on an LCD screen and can be counted over a time period of 10 seconds, 30 seconds or indefinitely, adapting to the specific needs of an application.

An easy-to-use handheld instrument, the TKED 1 consists of a display unit and an antenna. It is operated by three standard AAA batteries and can be carried in a pocket for use wherever it is required. A backlit LED screen enables use in poor visibility environments. Alternatively, users can turn off the backlight display and select the auto power-off function if additional battery life is required. The instrument is supplied in a sturdy carrying case with batteries, a spare antenna and instructions for use.

 
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