Uninterruptible AC Power Supply

Power supply is generally referred as a source of electrical power. It is a device or system that supplies electrical or other forms of an energy to an output load or group of loads and is known as power supply unit or PSU. The electricity primarily flows in two ways, namely AC or alternating current and DC or direct current. They are in-fact a movement of electrons along the conductor. The only variation among AC and DC lies in the direction, wherein the AC keeps the moving electrons in a switching manner, on the other hand DC is in a steady single track.

AC power supply is mainly used for long distance power transmission to different power companies. As high voltages are required to fill the transformer of those companies, AC power supply is needed where as, DC provide current on a small-scale basis.

AC power is nowadays used all over the world. AC power in reality reverses direction. In US, the current makes a complete cycle 60 times a second. There are several household in US that are wired for high power devices and operate at 240 VAC. The major benefit is that 240 VAC needs only half the current of 120 VAC for the similar power consumption which in turn curtails resistive power losses in the wires that deliver the current.

Why AC power supply is preferred over DC:

1. Alternating current posses the potential for large scale.

2. They can be conveniently and cheaply produced than DC potentials.

3. DC is still the ideal choice in the areas where the requirements are relatively lower such as, flashlights, mobile systems and car but commercial power plants still produce AC as they are quite cheaper and reliable.

4. Alternating current can be transformed into higher or lower potentials and even a transformer can enhance or reduce AC power supply to whatever value is needed for the job.