A transformer protection relay does not replace upstream devices. It defines responsibility. By clearly assigning fault ...

UL has released design standards for balcony solar, also known as plug-in pv, along with whitepaper highlighting three main risk categories of balcony solar in the US consumer market.

Understanding the advantages, limitations, and use cases of each technology helps engineers create reliable, space-efficient, and standards-compliant consumer products. Consumer electronics continue ...

Power systems today operate in an environment where reliability and safety must be maintained despite rising loads, expanding interconnections, and increasing dependence on distributed energy ...

Abstract: The engine reverse thrust control is of great significance to the landing deceleration of the aircraft. The action time of inverse time overcurrent protection changes with the size of the ...

A coalition of 21 attorneys general from Oregon and Democratic-led states sued the Consumer Financial Protection Bureau and its director, Russell Vought, on Monday, asserting that the White House’s ...

Danger in the natural world is not always large or obvious. Some of the smallest creatures on Earth possess toxins, diseases, or behaviors that can cause serious harm to humans. Encounters are often ...

Abstract: This paper discusses the factors to consider for sizing current transformers (CTs) for line protection applications. We first cover CT basics, with emphasis on errors and ac and dc ...

A 240v outlet sits behind many big household upgrades, from a faster clothes dryer to a Level 2 EV charger in the garage. Once homeowners start pricing those upgrades, the next step is usually a ...

Research led by the Veterans Affairs Portland Health Care System in Portland, Oregon, found that a single dose of respiratory syncytial virus (RSV) vaccine reduced RSV infections and RSV-related ...