Hi,
I am restoring a WW2 M45 Quadmount and have run into a few electrical issues regarding the 12v electric motor which runs the traverse and elevation gears.
Currently, I am testing the motor and receiving a voltage drop of around 1.7v (from 12.6v) under full load. As a result, it's pulling around 160amps with the motor cables getting warm as a result. I have included a basic wiring diagram including voltage drop readings with 1v at the motor and around 0.7v through the wiring. Note it is currently powered by 2x 6v 130ah batteries connected in series.
I have recently had the motor refurbished and when the motor is run without load it reads 11.8v.
I am worried the high amp readings and the voltage drop is going to reduce the life of the motor, is this something to be worried about? Is the drop because the batteries are not up to the job?
I've also included a few photos for context.
Thanks for your help,
Ben
I am restoring a WW2 M45 Quadmount and have run into a few electrical issues regarding the 12v electric motor which runs the traverse and elevation gears.
Currently, I am testing the motor and receiving a voltage drop of around 1.7v (from 12.6v) under full load. As a result, it's pulling around 160amps with the motor cables getting warm as a result. I have included a basic wiring diagram including voltage drop readings with 1v at the motor and around 0.7v through the wiring. Note it is currently powered by 2x 6v 130ah batteries connected in series.
I have recently had the motor refurbished and when the motor is run without load it reads 11.8v.
I am worried the high amp readings and the voltage drop is going to reduce the life of the motor, is this something to be worried about? Is the drop because the batteries are not up to the job?
I've also included a few photos for context.
Thanks for your help,
Ben
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