Factors to Consider when Choosing Variable Frequency Drives
A variable frequency is a type of motor that drives moto by varying frequency and voltage. There are several factors to consider when choosing a variable frequency device.
Factors you need to consider when choosing a variable frequency drive have been systematically highlighted below.
One of the factors includes altitude, altitude affects cooling thus when it increases the surrounding air becomes less dense and therefore this decrease causes the air density to decrease the cooling properties. The altitude in variable frequency drives operate at 100% in most of the frequency variable drives. At high altitudes the driver must compensate for the decrease in cooling for the air to become less dense.
It is important to know that temperature is also a factor to consider when choosing a variable frequency device since temperature in a variable frequency device generates a significant amount of heat to the motor therefore can cause internal temperature of an enclosure to exceed the temperature rating of the Frequency drives this a ventilation or cooling may be required to control the temperature of the motor. one should know that temperature in the AC drives is an important factor to consider because it generates a significant amount of heat.
Another factor to consider when choosing a variable frequency drive is overload. It is important to know that overload refers to the number of conditions that one frequency hard drive can handle, considering all the conditions encountered. One should be sure that the frequency variable drive can handle any overload conditions when choosing one. An overload can be greater than 150% or longer than 60 seconds. frequency is the one that leads the overload factor.
Another factor to consider when choosing a frequency variable drive is the application type of the drive. There are two types of frequency variable drive. It is important to know that there are two types of frequency variable drives. For one to easily identify an application of a certain drive Therefore, when choosing a frequency variable drive, one should know that each application type has its specifications thus avoiding any confusion or mix-ups. When one is not aware of what to order or rather choose from the two, the most recommended of the two is the constant torque which is mostly used. It is important to know that the variable torque is mostly or rather commonly used in the ratings of the conveyors and machine control.