The objective of protective relays and protective schemes is to protect electrical equipment such as transformers, lines, cables, bus bars, etc. during abnormal system conditions. Hence, protective ...

Electrical power systems are often built with crucial auxiliary systems, which are often dependent on each other to ensure these power users have systems that are safe and reliable. The DC battery ...

Proper selection and effective testing can increase contact reliability in the end product while reducing the overall cost of using relays. Who said relays are pass�? While electromechanical relays ...

Battery-capacity testing is an essential part of battery maintenance. But how do you do it effectively? How do you know your UPS will have "enough battery" to provide the electricity your operations ...