Doctorbass
100 GW
I am not sure if i made a mistake about max magnet temp
Yesterday i have painted the magnets of my 4T QS205 50H and baked the paint at 78 celsius for 24h witch is the temp i usually use as it worked nice and i never noticed demag on all my previous motor
I was sure that the operating temp of that QS motor was like 90-100 celsius, however i saw in the spec that QS have that these have workingtemp to 70 celsius and max 120celsius
so i wonder if 78 celsius from a 70 working temp for long period of 24h could have some effect .. well i guess it is not close to the curi point witch i suppose is 120 celsius or maybe 150...
The spec i have found for the QS are these one:
( the temp above are for the stator but the relationship with magnet is uncertain...)
"Note: QS Motor could work 120 ℃ in half an hour without damage.
Conservative Suggestion (Setting of Controller)
When it's 130 ℃ inside of motor (in 30s), the current should be limited 50%.
When it's 150 ℃, the controller shut down.
When it drop down to 110℃, the controller work again."
What do you think?
Doc
Yesterday i have painted the magnets of my 4T QS205 50H and baked the paint at 78 celsius for 24h witch is the temp i usually use as it worked nice and i never noticed demag on all my previous motor
I was sure that the operating temp of that QS motor was like 90-100 celsius, however i saw in the spec that QS have that these have workingtemp to 70 celsius and max 120celsius
so i wonder if 78 celsius from a 70 working temp for long period of 24h could have some effect .. well i guess it is not close to the curi point witch i suppose is 120 celsius or maybe 150...
The spec i have found for the QS are these one:
( the temp above are for the stator but the relationship with magnet is uncertain...)
"Note: QS Motor could work 120 ℃ in half an hour without damage.
Conservative Suggestion (Setting of Controller)
When it's 130 ℃ inside of motor (in 30s), the current should be limited 50%.
When it's 150 ℃, the controller shut down.
When it drop down to 110℃, the controller work again."
What do you think?
Doc