Home » Wiki » Variable Frequency Drive Operation diagrams

# Variable Frequency Drive Operation diagrams

Installation height
The nominal values of the variable frequency drive apply to installation altitudes up to 1000 meters above sea level. If the VFD installation altitude exceeds 1000 meters, the drives output power and cooling agent temperature (ambient temperature) must be reduced.

 Reduction of output current VFD power reduction (VFD derating). Above 1000 m: Reduction by 5%/1000 m. Maximum altitude 3000 m. Reduction of cooling agent temperature Above 1000 m: Reduction by 3.3°C/1000 m. Maximum cooling agent temperature 55 °C. Reduction of output current I depending on installation altitude H. Reduction of cooling agent temperature T depending on installation altitude H.

Temperature
The nominal values of the variable frequency drive apply to a cooling agent temperature between 0 and 40 °C (ambient temperature).

Reduction of output current: VFD power reduction (VFD derating). Above 40 °C: Reduction by 2.5%/K; Tmax = 55 °C

Reduction of output current I depending on cooling agent temperature T.

Mains voltage
Variable frequency drive reduction of output current (Derating) at constant output power. Above 400 V: 0.22%/V, Umax = 480 V

Reduction of output current I depending on output voltage U (= mains voltage).

Plz Calculate (8 * 2) =
(Your comment will show after approved.)

You may also like:

Category
Featured Articles
What is VFD, How it works? - VFD ... VFD is shorted for Variable Frequency Drive (also known as AC Drives and Inverters) -- that's used to make an AC motor working in ...
VFD: Insulated Gate Bipolar Transistor ... IGBT (insulated gate bipolar transistor) provides a high switching speed necessary for PWM VFD operation. IGBTs are capable of ...
Three phase inverters In the variable frequency drive rectifier paper, it explains how to go from three phase alternating current voltage to a direct ...
Variable Frequency Drive Harmonics and ... A discussion of the benefits of variable frequency drives often leads to a question regarding electrical harmonic distortion ...
Variable frequency drive Energy saving Energy can be saved in a VFD by reducing the losses in the electric motor or by reducing the energy consumption of the variable ...

VFD manufacturers