2004 Cat C7 Charging LifePo4 battery bank
I am upgrading my battery bank to a hell of a lot of capacity (Around 1200 amps). I know that if this was a gasser, the alternator will die young if it has to charge the bank. How good is the alternat...
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Output voltage is determined by the voltage regulator, but the stator has to be wound specifically to allow lower speed charging. I like 5/4 wye windings for 32 volts.
The rotor should be full spool wound. Right to the lip. 8-10 ohms. For 24 volts and add two more ohms for 32 volt operation.
48 volts needs 14 x 4 specs. Another 2 ohms. Magnet wire is available in 1/4 AWG increments like stator wire. A spool however is 10M feet.
It's getting harder and harder to source discrete voltage regulator components to build tough systems. The design of a 200 volt 200 ampere MOSFET power transistor heat sink is a nightmare. It cannot be done on substrate without great cost.
I used scrap stripped 70 amp battery isolators for regulator heat sinks. I built 48 volt alternators for alternate energy systems that used the 5548 Trace Inverters. Mid-fifties working voltage was the norm.
As far as I know the building of high voltage alternator art form is dead.
Today if I had to start somewhere with an alternator model for 48 volt conversion it would be with a Motorola
8SC 4006 U
Originally 100 amps at 37.5 volts
Converted and rewound 70 amperes at 56 volts.
56 volts is enough to stop a human heart.
The rotor should be full spool wound. Right to the lip. 8-10 ohms. For 24 volts and add two more ohms for 32 volt operation.
48 volts needs 14 x 4 specs. Another 2 ohms. Magnet wire is available in 1/4 AWG increments like stator wire. A spool however is 10M feet.
It's getting harder and harder to source discrete voltage regulator components to build tough systems. The design of a 200 volt 200 ampere MOSFET power transistor heat sink is a nightmare. It cannot be done on substrate without great cost.
I used scrap stripped 70 amp battery isolators for regulator heat sinks. I built 48 volt alternators for alternate energy systems that used the 5548 Trace Inverters. Mid-fifties working voltage was the norm.
As far as I know the building of high voltage alternator art form is dead.
Today if I had to start somewhere with an alternator model for 48 volt conversion it would be with a Motorola
8SC 4006 U
Originally 100 amps at 37.5 volts
Converted and rewound 70 amperes at 56 volts.
56 volts is enough to stop a human heart.
