Sunder
10 MW
Hey all,
I have a battery that is capable of delivering around 500 amps, and a inverter that is capable of requiring that. Even without a load attached, being a low frequency inverter, it demands HUGE currents on start up.
I want to put a current limiter in line. Even though I intend to remove it once it is powered up, I want to use a thermistor rather than a straight resistor because I understand them to be gentler on the circuits, and if I forget to unplug, all I lose is a small bit of efficiency.
Unfortunately my knowledge of thermistors was virtually none 5 minutes ago, and can be best described as "best guess" now.
The system is a 24v battery (29v max) with a 3000w/12000w inverter. My understanding is that the "rating" of the thermistor is its "cold" resistance which heats up the thermistor. As it heats, resistance approaches zero meaning it stops self heating.
If that is the case, can I use one of these?
http://vi.raptor.ebaydesc.com/ws/eBayISAPI.dll?ViewItemDescV4&item=262766820482&category=92078&pm=1&ds=0&t=1492913946359
29v @ 1ohm = 29a, which is less than the 30a rating.
But is 1ohm high enough to limit the current, given the tranformer is basically a short circuit before the magnetic field comes up?
The voltage is 110,240v which i don't understand. Resistors should only have a max voltage, not two voltages, which seem to correlate with the world's AC standards.
Just hoping someone can help me understand if this is the right thermisto for my application.
Thanks in advance.
I have a battery that is capable of delivering around 500 amps, and a inverter that is capable of requiring that. Even without a load attached, being a low frequency inverter, it demands HUGE currents on start up.
I want to put a current limiter in line. Even though I intend to remove it once it is powered up, I want to use a thermistor rather than a straight resistor because I understand them to be gentler on the circuits, and if I forget to unplug, all I lose is a small bit of efficiency.
Unfortunately my knowledge of thermistors was virtually none 5 minutes ago, and can be best described as "best guess" now.
The system is a 24v battery (29v max) with a 3000w/12000w inverter. My understanding is that the "rating" of the thermistor is its "cold" resistance which heats up the thermistor. As it heats, resistance approaches zero meaning it stops self heating.
If that is the case, can I use one of these?
http://vi.raptor.ebaydesc.com/ws/eBayISAPI.dll?ViewItemDescV4&item=262766820482&category=92078&pm=1&ds=0&t=1492913946359
29v @ 1ohm = 29a, which is less than the 30a rating.
But is 1ohm high enough to limit the current, given the tranformer is basically a short circuit before the magnetic field comes up?
The voltage is 110,240v which i don't understand. Resistors should only have a max voltage, not two voltages, which seem to correlate with the world's AC standards.
Just hoping someone can help me understand if this is the right thermisto for my application.
Thanks in advance.
