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What are the voltages in secondary transmission electric lines?
Wiki User
∙ 13y ago
A: Those voltages are called distribution voltages to differentiate from transmission voltages. And that varies from state to state and locals . Usually around 10kv to 20 kv
Wiki User
∙ 13y ago
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What is VAC power lines?
Power lines carry three-phase electric power at fixed voltages that can be anything from 208 v in the USA to 400/415 v in Europe, to supergrid voltages like 400,000 v or even more in some places.
What are the applications of high voltage?
some of the applications which i think are:high voltage power transmissioninsulation testingmeasurement of insulation resistancebreakdown voltage measurementsmeasurement of electric stress on different materialstesting of power transmission equipmentslightning simulationstudy of high voltages transients/surges on transmission lines
What are the 4 primary constant and secondary constant of transmission lines?
resistance (R) inductance(L) capacitance(C) shunt conductance(G)
How are step-up and step-down transformers used in the transmission of electric current from the electric company to homes?
(This is what my teacher said, I wrote this down in my notes) The answer is, Step-up transformers are used to increase the voltage of an electric current before it is sent out over transmission lines from the electric company. Step-down transformers are used to reduce the voltage of current from high-voltage transmission lines before it enters homes and businesses. Some devices, such as televisions, contain step-up transformers that increase the voltage once again.
When electricity travels long distances it is better to have it at higher voltages?
when transmission we usually use high voltages becoz at higher voltages current is less(p=vi,voltage is inversly proportional to current at constant power) so that we can minimize copper losses i2R losses.
Do you transmit electric power via transmission lines at 50Hz or at some higher KHz?
Transmission lines also use 50 Hz. Transforming to lower voltages would become very complicated when also the frequency would have to be changed.
What is electric supply?
HT is High Tension - usually voltages in excess of 1kV in electronics, but in Transmission Lines it could be much higher - perhaps over 25kV.It loosely signifies that there may be an unexpected danger in the apparatus.
Electric power is transferred over large distances at very high voltages Explain how the high voltage reduces power losses in transmission lines?
The conductor used to transmit power has a specific resistance at the given power frequency. Power transmitted is equivalent to I^2 * R, so as the current increases, the power loss from the conductor also increases. To maximize efficiency, power is converted to very high voltages, which decreases the current, which minimizes the power lost in transmission.AnswerThe primary reason for using high voltage transmission lines is because, for a given load, the higher the voltage, the lower the load current. Low voltages would require cables of enormous cross-sectional area making transmission impossible, whereas high voltages allow the use of manageable-sized conductors. A secondary reason is the corresponding reduction in line losses -as described above.
What is HT electric supply?
HT is High Tension - usually voltages in excess of 1kV in electronics, but in Transmission Lines it could be much higher - perhaps over 25kV.It loosely signifies that there may be an unexpected danger in the apparatus.
Why 22kv 11kv 33kv 132kv 220 kv are standard transmission voltages in transmission lines why not 20kv 10kv etc?
Its just a matter of standard. In my area, for instance, we use 13.2 KV for distribution lines, and 69 KV / 138 KV for transmission lines.
What is definition of transmission lines?
Conductors that transmit an electric signal.
What are examples of an electric current?
Transmission Lines are an example of electic current
What is VAC power lines?
Power lines carry three-phase electric power at fixed voltages that can be anything from 208 v in the USA to 400/415 v in Europe, to supergrid voltages like 400,000 v or even more in some places.
What is transmission line amps rating?
High power transmission lines carry several hundred amperes up to 2000 amps at voltages up to 500 kV or higher
What are some examples of an electric current?
Transmission Lines are an example of electic current
What we use of automatic Electric transformer use in power transmission?
"Electric" transformers are used in the electric power system for many things. I wonder if you mean "auto" transformer. Transformers are used to step up/down voltage and currents, to provide a ground reference, to inject signals onto power lines, to sample high voltages and currents, etc.
Why are power lines run at high voltages?
Power lines run at high voltages to overcome line loss.
