| Author | Message | ||
| R.C.Bishop
Rating: N/A |
For those of you who are electrical gurus, this is, no doubt, a mundane question,......  For a couple of months, since the extreme heat set in, I have been wondering if use of current could be lessened in fans and other appliances that have a fast medium, slow phase,etc., by turning to slower speed or lighter setting. Microwaves, toaster ovens, crock pots, fans, air conditioner, etc. come to mind. For instance, when the appliance is on high, as opposed to other settings, is it drawing more or the same, whether on shore power, or inverter power, straignt AC or DC....or is the outcome the same regardless of source? Thanx. RCB '64 Crown Supercoach (HWC) | ||
| Richard Bowyer (Drivingmisslazy)
Rating: N/A |
In general, yes the amperage will go down as a device is turned down to slower speed or lighter setting. Most AC devices use some type of SCR circuit that reduces the voltage thereby reducing the current draw. Generally the voltage peak voltage is not reduced, just the wave shape is chopped up so that less apparent power is available. In most older DC circuits a resistor is added in series with the load. Like a light dimmer for the dash lights in older cars. This in effect reduces the current in the load. The voltage is in effect split between the resistor and the load effectively reducing the voltage applied to the load and reducing the current thru the load. Richard | ||
| R.C.Bishop
Rating: N/A |
Thanx, Richard....'preciate the remarks. RCB |