Medium Voltage Motors for High-Performance
Motors play a critical role in industrial processes and can be found everywhere from cement plants to pump systems, oil and gas companies, plant manufacturers and more. However, not all electric motors are created equal. Some are built for more demanding applications that require higher power outputs or special features like rib cooling.
Medium voltage (MV) electric motors are built for high-performance industrial applications that need a combination of speed, power and energy efficiency. MV AC induction motors have more copper windings than their low voltage (LV) counterparts, making them more effective at higher speeds and power outputs.
In addition, MV motors feature better insulation materials and an extended creepage distance from conductor to earth, which helps prevent electrical wear. They’re designed to withstand more extreme conditions and have more extensive machining for bearings, shafts and stators, which allows them to operate at higher speeds than LV motors without damaging the insulation system.
Medium Voltage Motors for High-Performance Industrial Applications
Another benefit of MV motors is their ability to handle a higher current, which translates to a lower cost per foot for longer cabling runs. This is because MV motors can use smaller gauge wires than LV ones, which can cut down on overall installation costs for facilities with long cable runs or remote pumping stations. Smaller gauge wires are also easier to work with and connect within a terminal box, which reduces maintenance crew time and risk during initial setup.
Aside from their more robust construction and superior insulation, MV motors are also capable of operating in higher temperatures than their low-voltage counterparts. This is important because the temperature of a motor’s windings can impact its reliability over time. In fact, overheating of motors and circuit boards is often a sign of poor voltage levels, which can be corrected by upgrading the voltage control board to a UL-listed, high-quality unit.
For a number of reasons, including the fact that they’re designed to handle a higher amperage, many end users prefer MV motors when choosing an electric motor for their facility. However, it’s important to consider all of the variables involved before deciding whether an MV or LV motor is right for a specific project.
LV and MV motors are used in a wide range of applications for both general purpose and critical service. To determine which is best for a project, start with what the utility requires and then evaluate the motor’s life expectancy based on the application. After all, selecting the wrong motor can lead to costly installation problems or unnecessary repairs down the road. To learn more about determining the best motor for your project, contact ZCL today!
