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Low voltages are not 'combined into higher voltages' for transmission! The lower voltage (e.g. the voltage generated at a power station) is applied to the primary winding of a large power transformer, and the required higher transmission voltage then appears across the transformer's secondary winding. The magnitude of the secondary voltage is determined by the turns ratio of the transformer's windings.
What else can I help you with?
Why there is no electricity generation at 500 kv?
Electrical generation at higher voltages would have to have higher insulation between the windings of the generator. This would become physically impossible as the size of the generator would become so large that is would become inefficient. Voltages are generated at lower voltages where the insulation factor between windings is much lower. This low voltage is then transformed into a higher voltage for transmission to other locals.
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.
Why alternating current is use for electrical system?
The transmission of electrical energy requires very high voltages (for a given load, the higher the supply voltage, the lower the load current). To increase/reduce these voltages, you need transformers. Transformers are AC machines; they do not work with DC.
Why do high tension transmission wires carry electricity at high voltages?
For a given load, the higher the supply voltage, the lower the resulting load current. So, using high voltages reduce the load current which, in turn:minimise voltage drop along the line (which, at low voltages, would otherwise be enormous, rendering transmission of energy impossible).enable conductors of practical size.reduce line losses.
Why ac transmission voltage is 765 kv?
For a given load, the higher the supply voltage, the lower the resulting load current. So high voltages are essential for electricity transmission, in order to avoid enormous voltage drops, a need for conductors for huge cross-sectional areas, and to reduce line losses. Actual transmission sytem voltages are determined by the electricity-supply standards used in the country in which you live.
Why is electricity in power stations generated at 25000 v?
Electricity is generated at high voltages, such as 25,000 V, because it reduces the loss of energy during transmission over long distances. Higher voltages mean lower current, which results in reduced heat losses in the transmission lines. This allows more efficient and cost-effective distribution of electricity to homes and businesses.
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.
Can batteries of unequal voltages b connected in parallel?
no..... The battery with lower voltage will consume power from the higher one...
Why is it important to select a high voltage and low current during trnsmission of electricity?
For a given load, the higher the supply voltage, the lower the load current. By using higher transmission voltages, the resulting lower currents ensure (a) minimal voltage drops along the lines, (b) conductors of practical size, and (c) less line losses.
Why is ac electricity transformed?
'Transform' means to increase or to decrease an a.c. voltage. Transformers are used to step up lower voltages to higher voltages, or vice-versa. Transformers are an essential component of electricity transmission and distribution systems, as they allow voltage levels to be changed very efficiently. For a given load, the higher the supply voltage, the lower the resulting load current. So very high voltages are necessary in transmission systems in order to transfer energy with relatively-low values of current -this leads to less voltage drops along the line, less energy losses, etc. Transformers are required to increase voltages for transmission at generating stations, and to reduce voltages for the users at the far end of the transmission/distribution lines. A.C. is actually less-efficient than d.c. for long transmission lines, but is more widely used because it is very complicated to transform d.c. voltage levels, because transformers do not work with d.c.
Why is electricity transmittedat very high voltages and then stepped down by transformers?
The higher the transmission voltage the lower the I2r line losses. Greater effiency.AnswerThe voltage produced by power station generators is limited to 25 - 30 kV because of there is a limit to how physically-large a generator's windings can be. However, to transmit energy, the transmission voltages must be very high because, for any given load, the higher the voltage, the lower the load current. This means that (1) voltage drops along the line are manageable, (2) conductors of practical size can be used, and (3) line losses are minimised.
Can you generate 250 to 300 volts of eletricity for the house using solar panels?
Yes- however, most systems STORE lower voltages (6, 12, or 36 volts) and convert it to higher voltages as needed.
