What do you use for protection on your motor?
I use the temperature gauge
Dave?
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On Mon, May 6, 2024 at 01:29 PM, Tony Smith wrote:
Right, and how is slapping a 100¡ãC cut-off switch on the casing going to help you?? If your casing hits 80¡ãC you are probably already screwed.? What part of ¡°the enamel on the coil will start to fail at around 105¡ãC¡± are you failing to understand?
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Tony
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The best wat is to figure out thd outside temperature is when coil is at 105¡ãC. After researching the problem it was between 15¡ãC and 20¡ãC different.??
Basically thd outside temperature of motor is 90¡ã to 85¡ãC on the outside of case when the coil is 105¡ãC.
Even motor manufacturers figure this out for thermal cut off switches.??
The small high speed motor coil is rotating too.?
You see this calculation in first few posts.
Dave?
On Mon, May 6, 2024 at 10:36 AM, Tony Smith wrote:
Yes, but you need to put your sensor on the coils.?
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Which are on the armature for a brushed motor.?
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Which are spinning around at high speed.
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Can you see the problem?
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Tony
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I tested the gauge with boiling water witch is 100¡ãC. It was on the mark.?
Note: Use distilled water only
If over 500 foot above some correction is need ti temperature.??
Dave?
On Sun, May 5, 2024 at 08:05 PM, Chris Albertson wrote:
When someone says the motor is at 105 C. ?My question is ¡°How did you calibrate the sensor?¡± ?Most motors will start to be damaged at 85 C and 105 C is about the limit of what they can take. ? ? I strongly suspect an uncalibrated temperature sensor.
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On May 5, 2024, at 10:38?AM, Tony Smith via groups.io <ajsmith1968@...> wrote:
Well it shouldn¡¯t, but I¡¯m not the one trying to measure it.? I don¡¯t know what Dave thinks he¡¯s measuring,?
davesmith1800