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What is base voltage ? in terms of VFDs

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munzir

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What is base voltage ?

Should the base voltage & max.voltage always be the same ?

in terms of VFDs

thanXx
 

I would say the base voltage is the voltage at which the base speed is maintained. Max voltage would be the voltage at which speed would not increase without changing the vector.
Maybe have a look at this doc:
**broken link removed**
 

base is for optimum op from anything you are using and the maximum voltage is the voltage where the op is relatively efficicent and there is a satisfied performance from the device

generally use device in base voltage

at max voltage there is a probability of the device getting damaged in realtime due to glitches

do clarify what VFD is then more help can be sorted out
 

VFD means Variable Frequency Drive (InverterZ)

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means Base Voltage is the Voltage at which we can get maximum output without damaging the motor or its windings
& the maximum voltage is the voltage at which if we continue to run the motor then it definitely would damage the motor & its windings , right ?

as is the same case for base frequency & maximum frequency ???
 

Can both base voltage & maximum voltage be equal for a drive ?
 

why they can't be equal in value in a VFD (Variable Frequency Drive) ?

How much the base voltage would be lower than the maximum voltage ? If 400 V is the 3 phase output of a VFD ... then what should be the base voltage ?
 

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