How long do Sealed Bearings Last for?

Current Offset due to Impedance Imbalance produces twice line frequency vibration.

It is possible but it requires some patience

Purchase right & Install right!!!!!

Predictive Motor Winding Test

Why is Impedance Imbalance in Electric Motors so Important.

It is a valid strategy, but Electrical Preventative is far more rewarding.

Stopping Bearing Fluting, Motor Insulation and Lubrication Decay.

Check your MEN (Multiple Earth Neutral Link).

One Hour of work!!!!!

Significant variation in Grease Fill of Sealed Bearings.

Electrical Cancer affects Motor Reliability

Listed in IEEE 1415:2006 as an Effective Method of determining Electric Motor Winding condition.

100% of Air Compressors tested to date have connection defects in the Star Delta circuit.

Using EMF Cores to Suppress Bearing Fluting & Attack 100% Effective in this case.

Procedure to test Rectifier & Converter: Variable Speed Drive Servicing. Reduce Common Mode Current & Bearing Fluting.

IEEE Std 1415-2006 IEEE Guide for Induction Machinery Maintenance Testing and Failure Analysis

How to justify a motor replacement

Have you a Drive that’s tripped and you don’t know if it’s the Motor?

The Technical & People Approach

(37% of are connected to drives, account for 82% of Winding defects)

4 wire Probes vs Clips, which is better?

99% reduction Bearing Fluting of by ensuring proper grounding and EMF Cores.

Overtightening of worn Belts & Sheaves

Electrical Reliability ensuring circuits will operate safely. This lowers Personnel, Asset and Insurance Risks.

Cheap, Easy to Implement, and Significantly Improves Safety. Maintenance Management responsibilities for your Team.

In this case the there are defects from Installation, but also damage from the Variable Speed Drive.

Gain Reliability & Return Energy Savings.