moizpk2001
Mechanical
is there any requirement of anticondensate heater for IP55 type TEFC motor? if yes then why?
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IP55 vs Anticondensate heater
- Thread starter moizpk2001
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If the motor was outdoors or in a humid indoor environment then yes, absolutely.
Why? Well do you think IP 55 is going to keep humid air out of the motor? It won't, it won't even come close. Once the humidity is in there - which will happen - the last thing you need is it condensing out on live parts.
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Why? Well do you think IP 55 is going to keep humid air out of the motor? It won't, it won't even come close. Once the humidity is in there - which will happen - the last thing you need is it condensing out on live parts.
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If we learn from our mistakes I'm getting a great education!
gr2vessels
Mechanical
moizpk2001,
The hot air inside the motor will expand and most likely will leak out through the seals, to balance the atmospheric pressure. When stops, the air will cool down, creating a vacuum inside the motor, absorbing moist air from the ambient (IP55 allows limited ingress, is not air tight). The moisture will condensate on metallic surfaces, producing a corrosive environment and also a conductive medium with obvious potential consequences. The heaters will automatically maintain an elevated internal temperature to prevent the condensation of the absorbed moisture. This particularly important for larger motors, where the consequences of failure could be very costly.
Cheers,
gr2vessels
The hot air inside the motor will expand and most likely will leak out through the seals, to balance the atmospheric pressure. When stops, the air will cool down, creating a vacuum inside the motor, absorbing moist air from the ambient (IP55 allows limited ingress, is not air tight). The moisture will condensate on metallic surfaces, producing a corrosive environment and also a conductive medium with obvious potential consequences. The heaters will automatically maintain an elevated internal temperature to prevent the condensation of the absorbed moisture. This particularly important for larger motors, where the consequences of failure could be very costly.
Cheers,
gr2vessels
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