Try to select the features for the real need, most motors require simple protection like overload and earth or phase fault. Either with protection relays or through the variable speed drive, your motor and installation require protection. Motor protection relates to faults and overloading. In the end, classical motor starters provide you with the lowest integration cost and are suitable for most cases. It may be more expensive than a simple contactor or circuit breaker, but you will save in the maintenance of your motors and reduce constraints on parallel loads during start. If you need speed control, synchronization to other processes, or if you estimate energy savings to be relevant, then a variable speed drive will be the most suitable. Depending on the application requirements and motor characteristics, the solutions for low voltage and medium voltage applications may be different. Once the application constraints are clarified, you can think of a suitable and cost-optimized solution for motor control. This is the key to avoid over-performing in the ultimate solution. So you need to consider all of them to be sure that you have properly understood the application. ![]() ![]() But everything may be changed with the requirements of the industrial process, regarding starting, stopping, speed control, and synchronization of the operation with other applications in the same process. The inertia also constrains the appropriateness of specific motor controls. The different applications have different forms of torque like quadratic, linear, constant, and decreasing. The load is characterized by its relation to the speed, and inaction. The application is the load, and its operational characteristics according to the industrial process it belongs to. It consists of five steps that collectively take every aspect into account: One of the most efficient routes is the motor management approach. What the designer needs to think about is how to select equipment in the three blocks preceding the motor to obtain correct motor operation, lower installation cost, and making sure the motor operation has the lowest possible impact on the electrical supply and parallel loads. There is a four block for the Electric Motor Installation:Įach of the four blocks contain elements that connect it to the others. It will save on installation costs and avoid production losses during operation. There is a simple way that you can apply to every application. ![]() Efficient motor management can bring you to an optimal design of your motor and electrical installation.
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