Regardless of where the need is for a VFD (variable frequency drive) the ability to have the motor run at different speeds for enhanced efficiency and energy use reduction is critical. To ensure each motor is running optimally and to enhance reliability a medium voltage sync bypass system is the natural choice.
In essence think of the medium voltage sync bypass system as a backup or a way to build in redundancy in the group of motors. If one of the variable frequency drives fails for some reason, the medium voltage sync bypass system registers this drop in voltage across the line.
This in turn causes the bypass system to adjust the other motors in the line accordingly to ensure a continual and correct voltage output. This allows the failed VFD to be simply bypassed without the need for any manual adjustment to the line. Consumers on the other end of the power grid, water system, manufacturing system or HVAC system won’t notice any change.
Built in Redundancy
With many new types of motors and drives for this high demand, essential industries the medium voltage sync bypass system is always a component of the system. This is very different than even a few years ago where it was seen as an add-on. Having the bypass already built-in may be an important consideration for a retrofit or when space and local codes or regulations may need to be considered.
Protection for Motors
As the medium voltage sync bypass system is constantly monitoring the motors, it automatically detects small changes in the output and reads this information as such. It can then automatically bypass the motor and moving to the redundancy option to protect the motor from a complete failure.
With the motor offline it is then possible to provide the necessary repairs without any further damage to the system. This, combined with the steady output of the system adds to the cost benefit of having these options in place.
Different sizes of bypass systems can be developed to protect, monitor and ensure reliability on up to 8 motors in a line. With this type of security and protection for both the equipment as well as for end users of the utility, processing or industry, a medium voltage sync bypass system is an important consideration for any use.
