Whenever an inductor is saturated then power is cut the field collapses and the 12 volt power oscillates sometines with voltage spikes so high they damage solid state components. In earler MoPar chassis and GM chassis the decaying field would set up ringing between two inductors. Start the generator while the chassis air conditioner clutch was in operation and it would fail the alternator voltage regulator. One GM failed the HEI distributor module AS the generator started.
This isn't Gyro Gearloose grade deduction. For doubters with no heart issues find a Ford with a fender mounted starter solenoid. Grab ahold of the starter motor big stud. OK? Now have another person crank the engine then release the key while you hang on to a piece of bare metal with your other hand.
You have been introduced to a voltage transient event. It can blow a pacemaker or in my case put me in bed for a couple of days.
If an engine is running in a motorhome and the generator is cranked that little starter motor will develop 4 -10 times the reaction that an A/C magnetic clutch does. Not only are positive transients produced but also negative side voltage transients.
That "kick" eats away at solid state components. Little by little or bite by bite every device in the vehicle feels the jolt. Ham radio operators understand this - they have to. Appliances and accessories contain some form of protective device but they are tiny basic and cheap.
I am going to test the durability i.e. longevity of a closest voltage tolerance imaginable suppresor system. On both ignition and battery system.
This exercise was insired last week when I had a brand new factory ND A/C compressor installwd in the toad. It works great but twice now when the unit shuts off it wipes the factory radio settings and clock memory. If.it has eaten the circuit protectionbinbthese devices what's next?
After a year I will autopsy the device's discrete components using resistance and high voltage and see what if anything has failed.
