Reasons for using alternating current in homes?
Reasons for using alternating current in homes? An important question that may come to everyone’s mind is why electricity is supplied to homes with alternating current (AC) and not direct current.
There are several reasons why we prefer to rely on alternating current over direct current in homes, So what are these reasons? What is the difference between the two currents?
The difference between alternating current and direct current
| # | alternating current (AC) | constant current (DC) |
|---|---|---|
| The transfer of energy | It can be transported long distances with little losses | It can’t be transported long distances because it loses a lot of energy |
| Frequency | It has a frequency (50Hz/60Hz) | Its frequency is zero (no frequency) |
| direction | direction variable | Directional constant (current only flows in one direction) |
| The current value | change over time | stable over time |
| Sources | generator | Solar cell/battery |
| Power Factor | ranges from 0 to 1 | always right one |
| wave shape | sinusoidal-modified-square | continuous line |
Reasons for using alternating current in homes?
Reasons for using alternating current in homes?There are many reasons why alternating current (AC) electricity is an essential source in homes and factories: The most important ones:
- Ease of transferring AC power to long distances from the power plants to the consumer with minimal losses.
- The AC voltage can be lowered using only a step-down transformer without any expensive complex circuits.
- Ease of converting alternating current to direct current by making a simple circuit called the full wave unification bridge circuit, Unlike DC, which needs an inverter with a very complicated and expensive design to convert DC current to pure-wave alternating current.
- We always note that most chargers are small in size and can be designed by specialists in the field of electronics, This is because these chargers contain electronic parts, not many.
- Because the current used in the house is alternating, The cross-sectional area of the wires used in household extensions does not exceed 10 mm2, Whereas in the solar system and batteries in particular, you need a 100 Ah battery with a cross-sectional area of 16 mm² or 25 mm², This is very expensive. The reason is that the AC voltage is 220V or 110V, While the voltage value of the batteries is low.
- AC induction motors are easy to manufacture, maintain and inexpensive, Conversely with DC motors.
The difference between alternating current and direct current
The difference between alternating current and direct current
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