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Talk over How much current does car starter motor draw without whatsoever load? in the Auto Electrician Forum area at ElectriciansForums.net
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Hello anybody,
Does anyone have whatever information on how much current does a car starter motor depict at no load? The motor specs:
Ability max: 1.4kW
Voltage: 12VDC
Armature resistance: 0.vii ohm
Brand: Bosch
Model No.: 1740374
The starter was removed from the engine when tested.
A little history into why I'chiliad trying to notice this information.
I'1000 trying to make a DIY demote ability supply to test car and wheel motors after rebuilding it. Usually the smaller motors are pretty easy to test equally long as their electric current draw is under 17 Amps.Then, a modified ATX supply and Lead acid bombardment does the chore. Simply testing starter motors is not that easy due to their larger electric current requirements as the ATX supply tin can never handle them even at no load. Until recently I used to use a spare auto bombardment to test outside without no loads. But since the climate I'm living is quite hot during summer (like 113F) the battery goes out pretty quickly in a year and one-half. So, this power supply would be a great replacement for the battery.
So, for this projection I used a transformer from an old center tapped 700VA Tripplite UPS. The output wire of the transformer is a 10AWG which means it should be under 35 Amps I guess. So, I connected the transformer via a KBPC3510 span rectifier. It can handle 35A at 1000V. And so connecting the transformer leads to the rectifier and taking the output across the rectifier + and the centre tap through a 15000uF 25V cap I was able to obtain 13.21 VDC. And so, I tried connecting the starter motor mentioned above without the solenoid and no load to the setup and after 3 seconds the span rectifier gave its magic smoke and went out. The transformer wire was likewise petty warm. I have another transformer from a 2000VA UPS and its massive. I recollect it can handle 55Amps I guess since the wires are 6AWG, but again currently I have merely a KBPC5010 rectifier and it can accept simply 50 Amps near. Currently I can only test motorcycle starters almost without whatever worries.
Cheers in accelerate,
R
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35A Bridge rectifier.jpg
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Starter Motor.jpg
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UPS transformer.JPG
Reply to How much current does automobile starter motor describe without any load? in the Machine Electrician Forum area at ElectriciansForums.net
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