The Need for DC Injection Brakes for Industrial AC Motors
DC injection brakes can be used to slow an AC motor in many different industrial applications. Why is this type of AC motor braking needful? AC motors feature a rotor that spins freely until it is eventually stopped by friction. With larger AC motors that are often used for very large loads, the rotor may spin for quite a while when relying solely on friction to slow it down. This can cause a significant amount of downtime in production operations, when employees must wait on the motor to stop completely before continuing with the next process or step. Also, DC injection brakes provide a way to stop and/or slow the AC motor in case of an emergency.
How does it work? DC voltage is injected into the AC motor’s winding after the motor’s Ac voltage has been disconnected. Doing so provides braking action to the rotor. DC injection brakes can not only help reduce production downtime and address safety issues by providing emergency braking capabilities, but these are also less costly to use. Since they do not have moving components, little or no maintenance is required. Unlike friction brakes that wear out quickly, the Dc injection brakes can be installed easily and left alone to do their job without regular maintenance. This saves money in the long run too. If you’re looking for a reliable AC motor braking solution, consider products such as SAF OP-STOP DC injection brakes. These are designed specifically for industrial uses and can be found through SAF distributors like Carotron, Inc.