As voltage decreses, amps decrease. opposite of Ohm's law. How ?

M

Thread Starter

Manuel

Situation - A three phase generator connected to a 3 phase, resistive load bank.
As we decrease output voltage, amps drawn by load also decrease.
Hertz remain constant.

Why ?
 
Manuel... the response you observed is correct for a resistive load because I = V/R!

If a constant kVA load, like a running motor, then the current increases as voltage decreases, and vice-versa.

Regards, Phil Corso
 
K

kamleshprasad

because according to ohm's law i depend v. So if we decrease the voltage current automatically decreases.
 
N

Namatimangan08

> As we decrease output voltage, amps drawn by load also decrease. Hertz remain constant. Why?<

You mean stand alone generator or generator with prime mover?
 
> You can refer to the voltage as either 'V' or 'E'. There are some textbooks
> that refer to the voltage across a battery as 'E'

I believe he was referring to the math in the equations, not the assigned letters.
 
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