Grab a cup of coffee (I’m having a dark Sumatra) and hang in with me.
Volts * Amps = Watts
Amps = Watts/Volts
The Bullet has a 1500 W induction board (from what I can find) and the power requirement on the web page states 1550 W. https://aillio.com/?page_id=23112
The Power settings change the wattage output from the induction board.
Assume your chart ryweller, Power @2 is a setting of 750W and Power @9 is 1500W for illustration purposes.
I’m approximating the voltage from your chart.
Extension: Power Setting 2 112 V @ 750W = 6.7 A
Direct: Power Setting 2 113 V @ 750W = 6.64 A
About 1% loss to resistance in the extension cord.
Extension: Power Setting 9 105 V @ 1500W = 14.29 A
Direct: Power Setting 9 108 V @ 1500W = 13.89 A
About 3% loss to resistance in the extension cord.
This is to be expected. Resistance is increased with the cable run and load. The direct connection will always have less resistance given an equal gauge extension because of the shorter run. Less resistance means a higher voltage and a lower amp draw. The longer run has a higher amp draw because of this resistance loss. Higher amp draw equals lower voltage given the relationship.
Think of voltage as pressure and amps as volume. Pulling more volume (amps) out will cause the pressure (voltage) to drop. If you are taking a shower and someone flushes the toilet, your shower pressure drops, same principle. The voltage drops as the amp draw increases which is what your chart is showing.
bradm If the wiring is to code, the outlet distance from the distribution panel shouldn’t matter. What you do downstream from the outlet does. You can calculate the wire gauge needed based on load (amps), run and conductor (copper vs aluminum).
For 20 amps over 25 feet with a 3% allowable voltage drop from source, you need 14g copper, 12g aluminum. 15 amps would be 16g and 12g respectively with a 3% allowable drop. Note: don’t use aluminum. If you want “no effect” over 25 foot at 20amps, an 8g copper would give =< 1 volt drop.
If you are using a 16g 25ft extension, 15 amps is about all you can reliably expect. The cord to the bullet adds a few feet more. Given the 14+ amps the bullet draws @ max, you are within specs but I would want a larger margin of error and not risk a failed roast.
You would also want to make sure you are on a 20 amp circuit, not 15. Watch for other loads on the circuit as well. If you’re drawing close to 15 amps for the Bullet @max, you don’t want to be on the same circuit as a hair dryer, toaster, microwave, etc.
The main power draw is the induction board. The fans, motors, etc. have negligible current draw comparatively so you won’t see much change unless you are doing more precise measuring.
Side bar: If you want to run the Aillio in your RV (we are planning on roasting on the road) a 50 amp setup has about 4 times the power of a 30 amp set up not twice. The 30 is a single 120 source but the 50 is a dual 120 source.
120V * 30A = 3600 W
120V *2 * 50A = 12000 W
Now, time for a refill.