PeterJ
Member
- Location
- Fergus Falls, MN, USA
No, I'm not trying to steal from my electric company, I just want to understand this. I've been told by many instructors over the years that 240VAC is cheaper to operate than 120VAC. So here is the hypothetical:
It takes a consistent 2400W to perform the required heating at a U.S. residence. I'm presenting 3 scenarios used to achieve the same 2400W of heating in simple resistive circuits:
#1 - A single 2400W 240VAC heater is used.
#2 - Two 1200W 120VAC heaters are used, both drawing from the same phase.
#3 - Two 1200W 120VAC heaters are used, each drawing from opposite phases.
Scenario 1 draws 10A, and scenario #2, and #3 each draw 20A.
The Question: How does the electrical power meter differentiate between scenario #1, #2, and #3?
Thanks,
PeterJ
It takes a consistent 2400W to perform the required heating at a U.S. residence. I'm presenting 3 scenarios used to achieve the same 2400W of heating in simple resistive circuits:
#1 - A single 2400W 240VAC heater is used.
#2 - Two 1200W 120VAC heaters are used, both drawing from the same phase.
#3 - Two 1200W 120VAC heaters are used, each drawing from opposite phases.
Scenario 1 draws 10A, and scenario #2, and #3 each draw 20A.
The Question: How does the electrical power meter differentiate between scenario #1, #2, and #3?
Thanks,
PeterJ