Latest Discussions : Electrical & Lighting

ecotect

04:51PM | 11/10/99
Member Since: 11/09/99
2 lifetime posts
I'm looking for an easy explanation for why 220volt service is more efficient than 110. If you have two wet shirts and you place one in a 110v dryer and one in a 220v dryer both rated for the same wattage, why does the shirt in the 110 dryer take longer to dry?
I know you draw less amperage with a 220V circuit but how does this work, why is it more efficient and less costly?

BobF

02:22AM | 11/11/99
Member Since: 10/19/98
223 lifetime posts
The 220 is not necessarily more efficient. You are drawing a lot more juice. In a 220v dryer you have 110 for the heater and 110 to spin the drum.

In a 110v dryer, that 110v same power does both.

CHOLE4ELECTRIC

03:28AM | 11/11/99
Member Since: 10/24/99
31 lifetime posts
Hello Ecotect:
Lets see "an easy explanation" .....
A 240 volt appliance (usually a motor) is more efficient because it takes less current to get it up to " cruising speed" then a 115v appliance.
The efficiency is short term ( only in the beginning at startup) other then that it takes about the same amount of power to run the motor.
A 240v heating element heats up faster as well.
Thats as simple as I can explain...hope it helps

BV015773

05:57AM | 02/22/18
Actually 220 current runs a path in and out back into the system. Two lines run into your house wound 180 degrees opposite each other. The flow goes through the load and the excess that is not burned in the load is pulled back to the system. Like magnets. On a 110 the excess that is not burned runs to ground.


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