Aegis Grounding Ring Installation

Odp and tefc up to 100 hp.
Aegis grounding ring installation. The voltages emitted by vfds find their way to ground typically through the motor s bearing. Motors must have new bearings and the aegis ring installation whether aegis sgr or aegis pro series must be installed per the aegis best practices as published in the bearing protection handbook. Aegis shaft grounding rings protects bearings and electric motors from damaging shaft voltages caused by variable frequency drives vfds. Aegis shaft grounding ring sgr nema ukit solid ring sgr 2 875 ukit new 2 875 nema u dimension fits nema frames.
404t 405t javascript seems to be disabled in your browser. Common conductors i think you should clarify your response to the october 2011 reader who inquired about nec section 310 15 b 5. The plastic hinge is used as an installation aid to keep the two sections attached. The code permits a ground ring which will function properly as the grounding electrode where installed in accordance with the requirements of 250 52 a 4.
Dc motors when operated on drives may also require bearing protection from induced shaft voltages. To see this video in several other languages see this youtube playlist. Aegis ring technology uses proprietary conductive micro fibersarranged. Select and list motor manufacturers with aegis shaft grounding rings odp and tefc factory installed.
Do not remove the tape release paper at this time. Aegis shaft grounding rings protect motor bearings from the destructive shaft voltages produced by variable frequency drives vfds. Aegis shaft grounding ring technology is the only technology that combines both contact and non contact nanogap technology to reliably protect bearings from electrical discharges that cause pitting frosting and flutingdamage. Capacitive induced shaft voltages may be hundreds of volts peak to peak and depending on the drive will increase in amplitude as the speed of the motor is increased.
For the best experience on our site be sure to turn on javascript in your browser. Some signs of these damaging currents include pitting frosting fluting and loss of bearing lubrication.