VRLA Batteries Batteries can store DC energy and these energies are used to operate our devices and systems that require electricity to operate. Batteries are created by flowing an electric current between two different metals absorbed in a solution (electrolyte) and creating an electrical potential…
VOLTAGE STABILIZERS What is Voltage Stabilizers It is an electrical appliance which is designed to deliver a constant voltage to a load at its output terminals regardless of the changes in the input or incoming supply voltage. It protects the equipment or machine against over voltage, under voltage,…
UPS Corrective and Preventive Periodical Maintenance Maintenance of the UPS consists of preventive and corrective maintenance. Preventive maintenance consists of a scheduled list of activities. Performing these activities keeps the UPS in good working order and helps to prevent failures. Corrective…
How the Online Uninterruptible Power Supply Works Today, There are 3 types of UPS. Off-Line UPS, Line Interactive UPS and Online UPS. In this article, we will focus on Online UPS and mention the other two types briefly. Offline UPS The UPS block diagram is shown below. It provides very basic protect…
Electric Power Problems Electrical Disturbances that cause our devices and systems to malfunction or interrupt their operation are classified as follows. Power Quality Problem should be understood as "Source Voltage Waveform Distortion" . We can explain this in the figure below. Spikes: It is fast,…