If an electric motor operates at too high a voltage, excess current flowing through the windings can cause them to become hot and burn out. While it is normally not practical to repair small, direct current (DC) motors that have burned out, other motors can be repaired by rewinding. Energy cost is $0.09 from the local utility. Also, conservatively estimate that if the motor is rewound, it will lose 1%efficiency, from 95.5% for the new one to 94.5%. Cost of rewinding is $2,600, and a new replacement costs $8,800.
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If an electric motor operates at too high a voltage, excess current flowing through the windings can cause them to become hot and burn out. While it is normally not practical to repair small, direct current (DC) motors that have burned out, other motors can be repaired by rewinding. Energy cost is $0.09 from the local utility. Also, conservatively estimate that if the motor is rewound, it will lose 1% efficiency, from 95.5% for the new one to 94.5%. Cost of rewinding is $2,600, and a new replacement costs $8,800.