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BrianG · 05.10.2010, 10:22 AM

There are two factors that determine how much voltage a motor can take.

1) Electrically, the dialectric strength of the coil wire insulation, which is usually some type of varnish substance. As long as the voltage isn't high enough to "jump through" the insulation, which usually takes into the hundreds of volts, the coil is fine. However, a voltage that is too high can cause overheating, which could melt this insulation shorting the coils. This would appear to be caused by overvoltage, but only indirectly as the real culprit is the current.

2) Mechanically, the rpm limit. As long as the kv * v doesn't exceed the max rpm limit of the motor, it's fine.

	(#3)
BrianG RC-Monster Admin Offline Posts: 14,609 Join Date: Nov 2005 Location: Des Moines, IA	05.10.2010, 10:22 AM There are two factors that determine how much voltage a motor can take. 1) Electrically, the dialectric strength of the coil wire insulation, which is usually some type of varnish substance. As long as the voltage isn't high enough to "jump through" the insulation, which usually takes into the hundreds of volts, the coil is fine. However, a voltage that is too high can cause overheating, which could melt this insulation shorting the coils. This would appear to be caused by overvoltage, but only indirectly as the real culprit is the current. 2) Mechanically, the rpm limit. As long as the kv * v doesn't exceed the max rpm limit of the motor, it's fine.