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Q: Why is the typical line voltage for a gas furnace of 120 V?
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What is the typical flue gas temperature of a category 3 furnace?

120


When you read the volts on a 3 phase linethat should be 230 volts you get 142 volts at each line?

It's hard to understand what you're trying to ask. There could be multiple reasons why you aren't getting the correct voltage, ranging from testing for DC when you should be testing for AC to accidentally measuring the RMS value. Most likely, however, is that you're not measuring with a balanced, three phase load. Tri-phasic power works by splitting the voltage into three separate sin waves that are phase shifted by 120 degrees in relation to each other. Therefore one stays a normal sin wave, one becomes a sin wave phase shifted to 120 degrees, and the other phase shifts to -120 degrees. This means that at any given instantaneous time the average voltage between them is approximately the value of the DC offset. This is only true if you're measuring them with a balanced three phase load, however. If you measure one line at a time, you're going to get erroneous answers. You need to measure tri-phasic power with a balanced three phase load.


Will a double AA battery's voltage kill a human?

No. Voltage doesn't kill you, amperage does, and the amperage produced by a AA battery is not even enough to cause a tingle. Amperage AND voltage kills. Should also include frequency in that equation. 120 v/ 10 amps of 400 hertz kills faster than 60 hz. Amps with low voltage will do no harm. You need both to kill. One AA battery would not kill you but put together enough of them? Why not?


What is 120 ib in kg?

120kg is 120 Kilograms 120 Kilograms is 120,000 Grams.


How many amps will a 45 KVA transformer produce at 480 volts?

Each phase supplies 15 kVA. The primary has a line-to-neutral voltage of 277 v so the line current is 15,000 / 277 or 54 amps. The secondary has a line-to-neutral voltage of 120v so the current is 15,000/120 or 125 amps.

Related questions

What is Furnace fan voltage?

Almost always 120 volts


What is the typical flue gas temperature of a category 3 furnace?

120


How do you identify an electric furnace from a gas furnace?

an electric furnace runs off of 208/230 Volts while a typical gas furnace runs off of 120 also a gas furnace will have a valve for the gas relay where the gas enters the furnace.


Can a 12 2 low voltage line light up a 120 volt led light fixture?

What needs to be checked is the voltage of the low voltage line. If it is 120 v, that is suitable for a 120 v LED fitting. Second, is the line capable of carrying the current needed by the fixture. The answer to that is, probably, but it still needs checking.


What is the typical breakover voltage for a DIAC used in an electronic control circuit in which 120 VAC?

about ~30v


What voltage should 208 3 phase leads read?

From line-to-line (any two of the three leads) voltage or 'line voltage', the voltage is 208 V. The line-to-neutral (one of the three leads and the neutral conductor), or 'phase voltage', is 120 V.


Why is phase voltage not twice line voltage?

Line to line voltage is not the same as line to neutral voltage because line voltages are 120 degrees apart. They are related by: Line to neutral voltage * tan (120 degrees) = Line to neutral voltage * 1.73.Additional CommentFor delta-connected systems, the line voltage is the same as the phase voltage.For wye-connected systems, the line voltage is larger than the phase voltage by a factor of 1.732. The reason for this is as follows:Because any two phase voltages are displaced from each other by 120o, they must be added vectorially, not algebraically, to find the line voltage. As the above answer points out, this means that the relationship between the two is the square-root of 3, or 1.732.


Can you connect a 277V ballast to 208V line service?

No. A 277 volt ballast needs the correct voltage to operate. The 277 voltage is derived from the star point voltage of a 480 volt three phase system (277/480). The 208 voltage is a three phase line voltage whose star-point voltage is 120 volts (120/208).


What is the voltage that supplies a motor starter called?

In the electrical trade it is called control voltage. This voltage can be any voltage. In North America the common control voltage is 120 volts.


What is typical single phase voltage in Canada?

The standard nominal voltage in Canada for a single-phase residential supply is 240/120-V split-phase supply.


Is the voltage rating on a light bulb the rms value or peak value?

It's the RMS value. A 120 volt lamp (light bulb) is rated according to its RMS voltage. Just like appliances in the home are rated at 120 volts (like your fridge, microwave and toaster), or 220 volts (like your clothes dryer). Note that these appliances will have to stand up to the peak voltage on the AC line. Naturally. And the peak voltage on an AC line is 1.414 times the RMS value of voltage. That means in a 120 volt AC line (120 volts RMS), the peak value of the voltage will be 1.414 times the 120 volts, or right at about 170 voltspeak for each cycle.


What is voltage between earth and line?

In a typical residential situation there is 220 to 240 volts between the two hot wires that are typically red and black and 110 to 120 volts between neutral and either black or red. The voltage between neutral and earth should be zero.