A UPS, otherwise known as an uninterrupted power supply, offers power supply at an uninterrupted rate, irrespective of the supply of main power. Especially useful for those industrial areas and large office buildings, UPS systems not only protect all of the equipment and machines, they can also help prevent major data loss, provide uninterrupted power supply during emergencies, offer protection from surges, protect those devices which are sensitive to voltage fluctuations, maintain the life of the battery, and allow industries continuous and uninterrupted work. Due to power fluctuations, it is common for work to get disrupted, but with a UPS system, losses can be averted and work can go on smoothly.

The most common kind of electrical disturbances that industries have to face include spikes in power. These spikes or increases in voltage only last for a few seconds, but they can cause machines breakdowns because of out-of-range voltage. Data centres can get corrupted because of spikes. Blackouts are also common in industries with frequent power fluctuations, and they can result in total loss of power, which can subsequently cause loss of work, financial losses, crashes and overall disruption. Surges in electrical supply last longer than spikes, but they cause dissipation of heat in electrical devices, resulting in damage. Brownouts refer to decrease in voltage for many hours and can result in damage and crashes of delicate electronic equipment. Sags and noises can also disrupt work. However, all of these problems can be counteracted with the help of a UPS system.

A UPS regulates all of the power in the equipment and machines that have been connected to it. Thus, when power failures or fluctuations occur, the UPS systems either alert for a system shut-down or they let the systems run without any interruptions, depending on the size of the UPS and the setting. They also alert users about power fluctuations so that work can be saved before the machine is shut down. Prompt and proper shut down ensures that no damage occurs to the components of the machines and power surges, spikes, blackouts, brownouts, and sags do not cause any long term losses to the business. Most industries rely on UPS systems for day to day activities. 

While laptops come with batteries, most workplaces have computers which do not have such a battery. Thus, during a power cut, work can get disrupted, and in areas with frequent power issues, loss of unsaved work is also a major concern. UPS systems act as battery backup power options to keep computer systems running so that work can be saved before the computer is properly shut down by the user. During power disturbances and fluctuations, UPS systems can act as alternate power sources and when power cuts are extremely long, work can still continue using UPS systems. UPS systems come in various sizes, and are generally chosen depending on the requirements and needs of the business or individual. By maintaining a stable output level across all devices and equipment, UPS systems offer surge protection by automatic detection.