When choosing a motor for a credit card applicatoin, a primary consideration is the speed range it will be operated in. Whenever a motor is run considerably slower than its rated base speed, several potential adverse effects will come into play, including reduced cooling effectiveness, reduced power efficiency and a alter in the motor’s swiftness and torque characteristics. To mitigate this problem, some motors and acceleration controllers have been designed especially to operate a vehicle a load at low speeds with exact control.
Most domestic and commercial motor applications use 3-phase asynchronous induction motors, which operate at a speed that’s determined by the frequency of the supply power. When a credit card applicatoin operates at a constant speed, the thing that is necessary may be a gearbox or acceleration reducer that brings the engine speed down to the required level. Nevertheless, many applications require the speed of the motor to be various during operation.
This is normally achieved using a VFD or Variable Frequency Drive, which controls the speed by modifying the frequency fed to the motor. Choosing the right motor and VFD type depends upon a variety of factors, however, it’s important to 1st look at how the characteristics of a motor change when the rate is reduced.
A motor usually includes a base speed, specified by the manufacturer, that it is certainly made to operate at. Nevertheless, if a electric motor is operated below the base speed, it could experience reduced efficiency of the coolant system. Especially with commonly used Totally Enclosed Lover Cooled (TEFC) and ODP (Open Drip Evidence) motors, where the cooling program consists mainly of a shaft-mounted enthusiast, a reduction in speed results in decreased airflow over the motor and loss of cooling, and temperature buildup occurs. Especially when the electric motor is operated with full torque at low speeds, heat can quickly build up within the motor to harmful levels.
Gearboxes and acceleration reducers are mechanical speed reduction equipment found in automation control systems.
We’ve summarised the crucial points concerning speed reducer gearbox on our website.