zbang
Senior Member
- Location
- Roughly 5346 miles from Earls Court
"Nope, we definitely have 110 here; does run high most of the time."
110/220
- Thread starter Little Bill
- Start date
Today it would require a specialty transformer to get 110/220. For say a 7200 line the TTR would be 65.
All 7200 pots I've seen in the last 30 years are 60 TTR.
Because the transmission voltages varied so much utilities have to use regulators to keep the voltage within the bandwidth.
And as Infinity said, it's closer to 125/250. We keep the voltage high to increase our revenue.
Then during CVR we lower the voltage to 119-120 to decrease load
All 7200 pots I've seen in the last 30 years are 60 TTR.
Because the transmission voltages varied so much utilities have to use regulators to keep the voltage within the bandwidth.
And as Infinity said, it's closer to 125/250. We keep the voltage high to increase our revenue.
Then during CVR we lower the voltage to 119-120 to decrease load
How does higher voltage increase revenue?
- Location
- Tennessee NEC:2017
- Occupation
- Semi-Retired Electrician
My guess would be that with higher voltage they could add more buildings/loads without changing the transformer, or adding one. The voltage drop would be within tolerance when starting with a higher voltage.
For constant resistance more voltage means more power.
We do the opposite with CVR to lower our peak demands
Ahh right of course thanks,
How does a utility implement Conservation Voltage Reduction (CVR)? At the sub-station level with a tap changer?
I dont think they do that here.
We do it with software that sets the regulator to a different group in the relay in all substations and all line regulators.
Birken Vogt
Senior Member
- Location
- Grass Valley, Ca
I've heard that one too. An old timer who's good friend still says that. I'm too embarrassed to correct him. When I hear an apprentice say 110 or 220 I tell them that they will never say 110 or 220 again in their entire life.
If you work on Mexican equipment there is indeed 220 present.
If you have an RV and run an air conditioner, you might see 110.