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What do "temperature rise", "cold state"
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What do "temperature rise", "cold state" and "hot state" of electric motors china mean
To ensure the supply and maintenance quality of electric motors china, standardize the procurement, maintenance and return procedures, achieve reasonable selection, timely maintenance and correct use, realize the safe, economic and efficient operation of electric motors and maximize economic benefits, it is necessary to understand the most basic usage knowledge of electric motors. The other day, a customer called to ask the technical department what "temperature rise", "cold state" and "hot state" mean. These are the knowledge points that most people don't understand. Today, the editor will popularize for everyone what temperature rise, cold state and hot state actually mean.
I. Temperature Rise
Temperature rise refers to the value by which the temperature of the stator winding of electric motors china exceeds the ambient temperature under rated operating conditions (the ambient temperature is specified as 35 ° C or below 40 ° C. If the specific value is not indicated on the nameplate, it is 40 ° C).
Ii. Cold state
When electric motors china is shut down for more than 4 hours or after running for less than 1 hour, the temperature of the motor coil and the ambient air temperature shall not exceed 3℃.
Iii. Hot State
electric motors china is ina hot state except for the cold state.
Note: In summer, the operating environment temperature of many electric motors will be higher than or close to 40℃. If the motor is used at full load for a long time under such circumstances, the surface temperature of the motor will reach above 80℃, and it is very likely to burn out the motor at this time. Therefore, when using an electric motor in an environment with a temperature above 40℃, it is essential to remember to physically cool the motor down.
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