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I hope someone can enlighten me on this subject.while i am doing research to find the right motor for my electric vehicle, i have found out that powerful motor(high hp) are rate at high voltage (24v,48v,90v).so my question is,what are the pros and cons of having two dc motors which have same power but different voltage?

2007-03-09 18:20:12 · 4 answers · asked by Anonymous in Science & Mathematics Engineering

4 answers

Some basic motor facts.
For a given motor:
1) Voltage is proportional to RPM
2) Current drain is proportional to torque
3) Power is either RPM * torque or Voltage * current

If you plan to operate your motor at different RPM's then you will need a controller to vary the voltage.

Also a motor with a higher voltage at the same power will use less current. This means you can use thinner(cheaper) wire.

2007-03-09 18:30:03 · answer #1 · answered by Roy E 4 · 0 0

you like some variety of power source to power the motor. the main challenge-loose AC voltages (in families a minimum of) are 120V and 240V, so that's clever that many AC autos would be designed to run off of those voltages. maximum DC aspects are batteries, so not extraordinarily, DC autos would be designed to run off of standard battery voltages (i.e. 9V, 12V, 24V, 48V).

2016-10-01 21:10:37 · answer #2 · answered by leisinger 4 · 0 0

Higher voltage requires less current for same power. I(current) times E(voltage) equals power.

2007-03-09 18:24:20 · answer #3 · answered by King Rao 4 · 0 0

for vehicular it is ideal either 24 or 48 volts these two are standard voltages , 90 i think it is 96 , depends of the capacity, for normal use 24 or 48 will be useful

2007-03-09 18:29:20 · answer #4 · answered by david j 5 · 0 0

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