Electrical Ques. If I can help someone I will...

if you want to think of it that way sure, it can be called 2 phase. technically that is right. but I have never seen it properly called 2 phase before. true 2 phase wouldn't be of much use, there for, doesn't exist in residential or commercial distributions. it's really just single phase 220 with a center neutral.
 
I've noticed how hard it is to give good electrical advice on here.. there are so many different variables and brands and minor things that can go wrong and cause complete disasters.. I try to give the best advice I can, but it's often advice that would work for me and I'd fix the "small" problems on the fly as they came up. but trying to give advice to someone else is much more difficult.
 
lorenzo08 said:
if you want to think of it that way sure, it can be called 2 phase. technically that is right. but I have never seen it properly called 2 phase before. true 2 phase wouldn't be of much use, there for, doesn't exist in residential or commercial distributions. it's really just single phase 220 with a center neutral.
Click to expand...


Tell me what *true* 2 phase is. I'm listening.
 
lorenzo08 said:
I've noticed how hard it is to give good electrical advice on here.. there are so many different variables and brands and minor things that can go wrong and cause complete disasters.. I try to give the best advice I can, but it's often advice that would work for me and I'd fix the "small" problems on the fly as they came up. but trying to give advice to someone else is much more difficult.
Click to expand...

I think it was more the comment that gangagoddess quoted.
(put the stones down? :) )


In general I've like your posts and usually spot on. But this one just isn't. And to preface it with that comment is kinda humorous.

Now onto more fun stuff.

If I've read you right, I'd guess you play with PICs or other microcontrolers?
 
BigBudBalls said:
Tell me what *true* 2 phase is. I'm listening.
Click to expand...


3 phase has multiple phases, each offset by 1/3, or 120 degrees as you said. the point of it is to always have one of the waves at or near the strongest voltage. 1 phase voltage crosses 0 volts 100 or 120 times per second. 3 phase never hits 0 volts, so it's not vulnerable in that sense. 2 phase doesn't exist, unless you consider the residential power we have in the states to be 2 phase. I'm just saying, technically, 2 phase is 2 waves, 0 and 180 degrees, but in the electrical field, doesn't exist. 1 and 2 phase power still both cross 0 volts 100 or 120 times per second.
 
BigBudBalls said:
I think it was more the comment that gangagoddess quoted.
(put the stones down? :) )

In general I've like your posts and usually spot on. But this one just isn't. And to preface it with that comment is kinda humorous.
Click to expand...

I'm glad if you find me humorous, thanks. lol

if I offended anyone, I apologize. when I read the new posts in the thread, everything just sounded so far off.
 
lorenzo08 said:
3 phase has multiple phases, each offset by 1/3, or 120 degrees as you said.
Click to expand...
And residential has 2 phases of 120 offset by 180

the point of it is to always have one of the waves at or near the strongest voltage. 1 phase voltage crosses 0 volts 100 or 120 times per second. 3 phase never hits 0 volts, so it's not vulnerable in that sense.
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And? Its a result of the phasing of the cycles.
How does a freq drive work on an AC motor? It regulates the phasing between legs along with base freq.

2 phase doesn't exist, unless you consider the residential power we have in the states to be 2 phase. I'm just saying, technically, 2 phase is 2 waves, 0 and 180 degrees, but in the electrical field, doesn't exist.
Click to expand...

Why isn't it 2 phase? Its 2 legs with different cycles from each other. They are considered 'out of phase'

1 and 2 phase power still both cross 0 volts 100 or 120 times per second.
Click to expand...

We measure the peek to peek. Euro measures peak to ground.
So Euro swings +230 to -230 while we swing +120 an -120
 
im very confused, you know what? im only gonna get a new plug and try it out for myself to see if it works as soon as i get to Toronto...
thanks alot everyone.
 
Heres one, is there any way I can wire a thermostat to a desk fan with variable speed so the thermostat switches the fan from its low speed to its high speed? It's just an el cheapo 12" oscilator with three buttons for the speed. Any ideas?
 
Hairy Bob said:
Heres one, is there any way I can wire a thermostat to a desk fan with variable speed so the thermostat switches the fan from its low speed to its high speed? It's just an el cheapo 12" oscilator with three buttons for the speed. Any ideas?
Click to expand...

possible, but I wouldn't say it's a beginner project. most are low voltage wall stats that connect to a relay that allows switching of much higher voltages and currents. you wouldn't need a very big relay. the relay is essentially just a switch that is activated by a magnet hooked up to the wall thermostat. it would switch the fan to high when it kicks on.

probably much easier to just leave one fan on low and have a second fan on high on some kind of thermostat
 
would i beable to run a 600watt hps and fans in the one power bar on a outdoor digital timer? the extension chord comes from an outlet outside my house would it be enough power? and there will be one 12" fan 3 cpu fans hooked up to a adapter 1 squirl cage fan for exhaust and another fan for an inlet for air... will this be enough ventilation in the room for 6 plants? the room is 3'x2'x9' (width x depth x height)
 
okay i have just ordered in a flip flop relay for my 1000watt lights so i can run two rooms off of 1 ballast on a 12/12 in each room...i'm just not sure about the timer deal :S
the relay is a Bulletin 700-HG “Power” Relay. do you know of it? if so could you draw me a diagram of what goes where...
 
would i beable to run a 600watt hps and fans in the one power bar on a outdoor digital timer? the extension chord comes from an outlet outside my house would it be enough power? and there will be one 12" fan 3 cpu fans hooked up to a adapter 1 squirl cage fan for exhaust and another fan for an inlet for air... will this be enough ventilation in the room for 6 plants? the room is 3'x2'x9' (width x depth x height)
 
royalgreen said:
okay i have just ordered in a flip flop relay for my 1000watt lights so i can run two rooms off of 1 ballast on a 12/12 in each room...i'm just not sure about the timer deal :S
the relay is a Bulletin 700-HG “Power” Relay. do you know of it? if so could you draw me a diagram of what goes where...
Click to expand...


the ballast gets plugged into a normal outlet and stays powered on. the relay plugs into the timer where the ballast "used to be". the relay will be turned on and off on a 12/12 cycle and will switch the single ballast between rooms. understand that? good luck and lots of bud :-)
 
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