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Which color wire is normally not on a 120v system in an apartment?
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∙ 11y ago
Black
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How do you use 205V equipment on 120V?
Normally you can't use 205V equipment on 120Volts
Why do furnaces use two phases of the home supply?
This is because furnaces are an enormous electrical load! The electric furnace for my 3 bedroom apartment is on a 60A 240V breaker. That means that for a medium sized apartment the furnace can use up to 14.4kW. Wow! Because the power draw is so high, the heater element runs at 240V instead of 120V. To draw that much power off 120V, the circuit would have to be rated to 120A. That is an enormous circuit, and is possibly enough to blow a main breaker if enough other appliances are on. By doubling the voltage a load you can halve the amount of current it draws. This allows for lighter wire, smaller control hardware, and is "healthier" for the house's electrical system.
Can single phase 200v from japan use in US with two phase 120v 240V?
The US system is not a two-phase system; it's a split-phase system. But, to answer your question, probably not without damaging the Japanese device.
Can you run your neon sign of 120v 50hz 60hz 0.6a 7.5kv 30mA in an Australian 240v power outlet?
No. The neon sign is fed by a step-up transformer. Primary side 120V, secondary side 7500V. If you applied 240 to the primary side you would get 15000 volts on the neon tube. A flash over and then nothing. If you can find a transformer from 120V to 240V or 240V to 120V then you are good to go. Connect 240V to 240V side and you will get 120V out the other, connect the 120V side to the neon sign and you should have light. Transformer should be at least 100va. This will give you an output of .83 amps at 120V
A system has 220v ac L and neutral can be possible two hot leg 120v ac be used?
yes, but the two 120v legs would have to come from breakers that are on the two different bus bars in the panel box, otherwise, you will get zero voltage between the two hot wires and 120 volts to neutral.
How do you use 205V equipment on 120V?
Normally you can't use 205V equipment on 120Volts
What is the color assigned to the high leg conductor of a 4-wire delta secondary three phases?
Assuming you are talking about a 120/240v delta system the color coding is as follows. Phase A(120v)-Black Phase B(208v "Wild leg/High phase")-Orange Phase C(120v)-Blue There are other color coding methods but this is the most common.
Why do furnaces use two phases of the home supply?
This is because furnaces are an enormous electrical load! The electric furnace for my 3 bedroom apartment is on a 60A 240V breaker. That means that for a medium sized apartment the furnace can use up to 14.4kW. Wow! Because the power draw is so high, the heater element runs at 240V instead of 120V. To draw that much power off 120V, the circuit would have to be rated to 120A. That is an enormous circuit, and is possibly enough to blow a main breaker if enough other appliances are on. By doubling the voltage a load you can halve the amount of current it draws. This allows for lighter wire, smaller control hardware, and is "healthier" for the house's electrical system.
Can single phase 200v from japan use in US with two phase 120v 240V?
The US system is not a two-phase system; it's a split-phase system. But, to answer your question, probably not without damaging the Japanese device.
What does 240 mean?
240 refers to the voltage used in an electrical system. The US uses 120V/240V, while the UK uses just 240V.
Can you wire your home with both 120v 60Hz and 230v 50Hz electricity?
No, these are two different distribution systems. The North American system uses 60 Hz and the European system uses 50 Hz.
What would cause light sockets to read 130V in a 240V system when the light switch is off?
More than likely, your 240V system has branches that supply a standard household 120V to things like lighting outlets. Most light bulbs in the US run on 120V so this is probably a convenience feature. Otherwise you would have to go to a specialty store and buy 240V bulbs.
Can you run your neon sign of 120v 50hz 60hz 0.6a 7.5kv 30mA in an Australian 240v power outlet?
No. The neon sign is fed by a step-up transformer. Primary side 120V, secondary side 7500V. If you applied 240 to the primary side you would get 15000 volts on the neon tube. A flash over and then nothing. If you can find a transformer from 120V to 240V or 240V to 120V then you are good to go. Connect 240V to 240V side and you will get 120V out the other, connect the 120V side to the neon sign and you should have light. Transformer should be at least 100va. This will give you an output of .83 amps at 120V
Example of electric potential?
120v
A system has 220v ac L and neutral can be possible two hot leg 120v ac be used?
yes, but the two 120v legs would have to come from breakers that are on the two different bus bars in the panel box, otherwise, you will get zero voltage between the two hot wires and 120 volts to neutral.
Why 1.732 value is include in three phase calculations?
It is the square root of 3. Multiply 1.732 to 120v. and you get 208. which, on a three phase system, is the voltage from line to ground.
Can 120v 20w bulb be used in low voltage 12 volt system?
No, it would glow very dimly or not at all. Bulbs must run at the voltage they were designed for.
