Power resistors are typically of wire wound construction and can fail like a fuse if overloaded. For testing purposes, an incandescent lightbulb makes for a useful precharge resistor. It has the advantage of lighting briefly to show the precharge is occurring, plus acting like a crude constant current source and also as fault indicator. If it remains lit, you have a precharge fault.
Power resistors are typically of wire wound construction and can fail like a fuse if overloaded. For testing purposes, an incandescent lightbulb makes for a useful precharge resistor. It has the advantage of lighting briefly to show the precharge is occurring, plus acting like a crude constant current source and also as fault indicator. If it remains lit, you have a precharge fault.
@@EVguru Thanks good to know, I just not expected resistor to fail. I usually use a light bulb for the first test but I didn't film it this time
Hi, what throttle pedal are you using?
Thanks
@@BenBeyond2003 It's a Prius pedal