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Author Topic: Fuses and brushless motor  (Read 475 times)

Klunk

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Fuses and brushless motor
« on: November 17, 2023, 07:18:46 pm »

Can you put a fuse between motor and esc on a brushless motor????
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HMS Invisible

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Re: Fuses and brushless motor
« Reply #1 on: November 17, 2023, 08:25:36 pm »

Can you put a fuse between motor and esc on a brushless motor????
No.

This is how 3-phase motors or transformers do it.
https://m.youtube.com/watch?v=O_yUJ46zpVI&t=30s.

You can use a thermistor to trigger an esc into shutting down if you are against using a main supply fuse.
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JimG

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Re: Fuses and brushless motor
« Reply #2 on: November 17, 2023, 08:45:14 pm »

If the idea is to use it to protect if the motor is stalled then it is not needed. I have tested a brushless motor using a wattmeter to measure the current and found that when the motor is stalled the current drops to near zero. As the esc uses feedback from the motors rotation to switch between the phases when the motor is stalled the esc sees zero rotation regardless of its output so the processor stops.
Jim
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Klunk

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Re: Fuses and brushless motor
« Reply #3 on: November 18, 2023, 05:03:41 pm »

If the idea is to use it to protect if the motor is stalled then it is not needed. I have tested a brushless motor using a wattmeter to measure the current and found that when the motor is stalled the current drops to near zero. As the esc uses feedback from the motors rotation to switch between the phases when the motor is stalled the esc sees zero rotation regardless of its output so the processor stops.
Jim

Nope, I had a club member blow the esc when the motor stalled due to weed

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