Motor Nameplate - Meaning and details

Understanding motor’s nameplate

You can fine a nameplate of a motor in motor body. Every essential data is given on this nameplate. Some times it’s difficult to understand, but it is very important. You need this data for maintenance, installation or change any kind of equipment. Engineers should concern about this data. The information of a motor nameplate is not same for all motor. Different manufacturers give different information. But most of the case, there are 15 essential information given on motor nameplate.

1. Voltage
2. Frequency
3. Phase
4. Current
5. Power factor
6. kW or Horsepower
7. Full-load speed
8. Efficiency
9. Duty
10. Insulation class
11. Maximum ambient temperature
12. Enclosure
13. Frame
14. Bearings
15. NEMA // Service factor

Standardize Circuit Symbols

Here is some Standardize Circuit Symbols:
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