anybody explain the inverter drives

hello all, 3ph,415v,50HZ motor operate with inveter drive.for instance if the motor is oprate with 25HZ what will be the terminal voltage in the
motor.
1.if it is 415? is it possible to oprate with Low frequency. 2. if it is not what will be the terminal voltage ?how?
regards
T.Venugopal
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On Apr 25, 8:27am, snipped-for-privacy@gmail.com wrote:

You need to talk to Rockwell Automation Allen Bradley. They design and build these things. Try: http://www.ab.com
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In order to keep the volt-time product constant, the RMS voltage would be 208 volts. This is usually produced by high frequency PWM switching. The operating maximum flux density in the motor is the time integral of voltage. If the time doubles, the voltage halves for constant max flux.
Without this arrangement to control the voltage applied by the inverter, the volt-time product would increase as the frequency lowered .This would cause higher and higher flux density and the motor would draw more and more current until something blew as the core saturated. Bad news!
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thank you sir, venu
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snipped-for-privacy@gmail.com wrote:

What about using solar panels with a battery backup? I'm thinking of something similar to solar powered fencers.
Dean
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