| Keeping our world clean does not always require a | | | | It can truly be said that updating existing motors |
| brand new invention. It often simply requires a | | | | make them better than they ever were. Now that |
| willingness to examine the efficiency and safety of | | | | standards have been raised, old motors can be |
| products that already exist. Electric motors are not | | | | retrofitted into high-premium efficiency motors. Here |
| new. However, there have been improvements in the | | | | is why. |
| past decade that bring less mechanical breakdowns | | | | Rewinding materials and techniques rise above the |
| and huge cost savings. | | | | standards of decades past. Now, spike-resistant wire |
| Electric motors are used in windmills | | | | (also called inverter duty) replaces the older wires |
| Across the United States, windmills are being used to | | | | that failed sooner. The bearings used on the spindles |
| generate electrical power to communities. Wind | | | | and shafts are made of harder steel and alloys |
| energy creates electricity. Harnessing that natural | | | | creating a longer-lasting bearing. The H-class insulation |
| current of wind makes for a very profitable energy | | | | now used in the motor case can withstand higher |
| source without harming the environment. Electric | | | | temperatures and allows the motors to run cooler. |
| motors are used to rotate the heads of windmills 360 | | | | This cooler motor will run more efficiently and last |
| degrees to keep the blades in the wind's current. In | | | | longer. The wire is now chemical resistant. Therefore, |
| the early 1990s, these particular electric motors used | | | | in those applications where harsh chemicals are used |
| inferior technology and failed. Windmills use common | | | | around electrical motor equipment, this improvement |
| electric motors that are easily overhauled. With | | | | is very welcome. Heat-resistant polyurethane varnish |
| improvements in the past decade, these updates | | | | reduces the amount of air that floats around the |
| that make them better than new. | | | | wire. When properly applied, this improved varnish |
| Electric motors are used in gate-operated dams | | | | improves the life of the wires, keeping your motor |
| Not only is wind being harnessed to create electricity, | | | | running efficiently and faster. Lithium grease, an old |
| water is being used. Gate-operated dams require | | | | standard in electric motors is now being replaced in |
| electric motors to open and close the gates. Nine | | | | the higher heat applications. Newer, heat-resistant |
| times out of ten, these motors are obsolete. This | | | | greases enable the motors to run with less friction in |
| makes it difficult to find replacement motors. Now, | | | | the more extreme elements. |
| with the latest technological advances, these same | | | | With a renewed awareness on the environment and |
| motors can be upgraded. This saves time and money. | | | | the desire to use natural, sustainable resources, the |
| Since the same motor housing can be used, there is | | | | recent improvements in the electrical motor industry |
| no longer a need to change the mounting hardware, | | | | are welcome. The need to purchase new motors is |
| pulleys and wiring. Even the same electrical phase can | | | | now being reconsidered when existing motors can be |
| be used. When these motors are upgraded, they are | | | | updated with wiring, insulation and greases which |
| better than when they were new. | | | | create more efficiency. The forces brought by wind |
| What improvements have been made to these | | | | and water can be used with higher efficiency while |
| motors? | | | | keeping costs minimal. |