Off Line Uninterrupted Power Supplies ( UPS) systems, including Line Interactive types are frequently preferred over Online types for small office or data center applications, justified on the basis of lower procuring and running costs, in spite of relatively poorer protection. This approach disregards existing differences between Online UPS systems, such as the ability, of certain online systems to operate in Economic (Eco) mode, which may offer better power protection at lower cost.
This is a piece or component part of equipment or an electrical gadget that has the capacity to regulate the level of power flow to the specifications of the equipment manufacturer. Consider the automobile, which uses a battery and generator as power sources. At times, the engine may accelerate and run faster than other times. This means that the generated power would be difficultly maintained at a constant level. The car voltage regulator helps to maintain balance between the power output and the required output level.
There is however a big difference between the Line Interactive UPS and Online system working in Eco mode regime. An Off line UPS system MUST work continuously from mains using the battery backup mode for short backup times, while an Online system CAN work continuously in both modes. And, recently there exists an ever-increasing demand for improved system stability through the excitation control Automatic Voltage Regulator in order to prevent decline in system stability in line with the increase in power system and power re-routing.
The uninterruptible power supply therefore functions as a mediator between the main supply and your equipment. The equipment is connected to the UPS which is connected to the main electrical network. The UPS accepts the alternating current (AC) input, then in order to store it in a battery, the UPS rectifies it to direct current (DC). When there is power interruption, the UPS automatically inverts the stored power to AC. This new output will be enough to power the equipment.
The automatic voltage regulators have many advantages, as well as few disadvantages. The first of these is that it offers better system voltage regulation to the equipment, thereby increasing the durability of that equipment overall. They also enable the equipment’s stability at all times. They are easily adaptable to outdoor applications and highly tolerant to system faults and overload, and they are relatively inexpensive. Among some of its disadvantages is that some of its mechanical drive components, such as contactors and brushes, may require regular maintenance, and frequent overloads have the tendency to damage brushes.
