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It doesn't really matter what the distribution voltage is. Line loss is dependant on the current through the conductor. #4 ACSR (aluminum conductor, steel reinforced, used in electrical transmission), has a typical resistance of 0.399 ohms per 1000 feet, and a maximum ampacity of 140. At max load, the I^2 * R loss would be about 7.82kW per 1000 feet of cable, or about 123kW per mile of 3-phase distribution. A 14,400 volt 140A system delivers about 3.48MW at unity power factor, so this represents about a 3.5% loss per mile, which is why 14.4kV is used for distribution, not transmission. Most likely, the cable would reach thermal limit well before 140A, and so would never be loaded to the max ampacity, so this is the theoretical max. At a more reasonable current, line loss would be correspondingly less.
What else can I help you with?
Why 380 volts line to line if connect line to neutral is 220 volts?
A voltage of 380 volts is a three phase voltage. On a three phase four wire system, each phase leg to neutral (grounded) will give you 220 volts. This voltage is obtained by dividing the phase voltage by 1.73, as the phase legs are generated 120 degrees from each other. Square root of three is 1.73 divided into 380 equals 220 volts.
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.
How do you check 480 volts line coming from comed?
This high a voltage is an industrial voltage. If you are concerned about variations in the voltage call your utility supplier to get them to check it for you. They can connect a recording volt meter to the line an it gives a print out over a 24 hour period. If that is not an option call a qualified electrical contractor and ask him to take a reading for you. A voltage of 480 volts is not a voltage that the ordinary layman should be opening panels and getting into.
What ACSR conductor is used for 33kV transmission line?
Single Circuit PantherACSR Conductor
What is the voltage between neutral and earth if neutral is broken?
Normally, it is zero.Except in very special cases, the neutral and ground (earth) conductors in a building are tied together at one point in the system, so ideally the voltage difference would be zero. The reason that it might not be zero is there is current flowing in the neutral and, thus, voltage drop in the neutral conductor. Since the ground conductor normally never has current flow (unless there is a fault), there will be a difference in voltage equal to the voltage drop across the neutral conductor, which varies with load (current).It should be 0V , but as per our earth pit maintaining that voltage will be varied even also not exceed 5V.
What is the voltage to ground of 13800 volts line to line?
On a three phase system with a line to line voltage of 13800, a wye connection will give you a voltage of, 13800/1.73 = 7977 volts to ground.
What is the voltage of a telephone line?
48 VOLTS
Why does ac line voltage read 185 volts?
I checked with my other meter and get 120 volts!
Why 380 volts line to line if connect line to neutral is 220 volts?
A voltage of 380 volts is a three phase voltage. On a three phase four wire system, each phase leg to neutral (grounded) will give you 220 volts. This voltage is obtained by dividing the phase voltage by 1.73, as the phase legs are generated 120 degrees from each other. Square root of three is 1.73 divided into 380 equals 220 volts.
Why does 220 volt line put out 250 volts?
A 220 volt line may put out 250 volts because this specification features voltage that varies between 220 and 250 volts. In other countries, the electricity varies in voltage between 110-120 volts.
What is HT transmission line voltage in Punjab?
approx. 1000 volts
Can 24volts be line voltage?
No. Line voltage is 120v or some multiple there of. It is the potential that comes in from the grid and is found on the hot conductor in your house wiring. 24 volts is "low voltage" and tends to be used only for switching and lighting. Also, 24 volts is often DC (though not always) while line voltage is invariably AC
What if you applied 14400 volts to a 7200 volt transformer?
In simple terms, it’ll basically blow up and ruin the transformer. An easy rule of thumb if you're working with a dual voltage transformer and not sure of the line voltage is to set your transformer on 14.4 before heating up and check voltage. If you’re only getting half voltage on your hot legs, open up the circuit and switch it back to 7200 and heat it back up. It’s okay to send 7200 volts into a 14,400 transformer but not the other way around.
What is the difference between line voltage and low voltage?
Answer for USA, Canada and countries running a 60 Hertz supply service.Line voltage is a term that is used to describe the voltage that is used to operate a specific device. A service that comes into a building would be considered line voltage. For a Class 1 circuit the top voltage for low voltage installations is 30 volts at 1000 vA. For a Class 2 circuit the top voltage for low voltage installations is not under 30 volts and not over 60 volts at 100 vA. Voltages used above 750 volts are considered high voltage installations.
What voltage would be measured from any phase to ground on a 480 volt 3 phase wye system?
A voltage of 277 is the line to neutral (ground) voltage of a 480 volt wye three phase system. L1- N, L2 - N and L3 - N will give you 277 volts. L1 to L2. L2 to L3 and L3 to L1 will give you 480 volts.
How do you calculate 440v phase?
Let's get the terminology correct. A 'phase voltage' is measured across a phase, whereas a line voltage is measured between two lines. So there is no such thing as a 'phase to phase' voltage -it's a line to line voltage (hence the term 'line voltage').
What is the normal voltage of house electricity in the US?
The voltage in North America can be as low as 110 and as high as 125 volts. The average is about 115 to 117 volts. <><><>><> House voltage in the US is generally 120v line to neutral and 240v line to line. It is referred to as a "120/240v single phase service." Actual voltage can be as low as 110/220 or as high as 125/250.
