What is the megger value of good motor?

The megger value, or insulation resistance measurement, of a good motor typically ranges from 1 megohm (MΩ) to 100 MΩ or higher, depending on the motor's voltage class and design. A common benchmark is that a value above 10 MΩ is generally considered acceptable for most applications. Values significantly lower than this may indicate insulation deterioration or potential failure, necessitating further inspection or maintenance. It's important to refer to the manufacturer's specifications for specific requirements.