At one time, the National Electrical Code (NEC) contained two Articles you won’t find as of the 2020 revision: Art. 280 (surge arrestors) and Art. 285 (transient voltage surge suppressors or TVSS).

The good thing about being a field applications engineer is that you get to work on many different circuits, often all at the same time. While this is interesting, it also presents problems. Jumping ...

A major power outage in April was caused by grid overvoltage, triggering a chain reaction. The Spanish grid lacked sufficient voltage control capacity, contributing to the blackout. Minister Aagesen ...

The National Electrical Code (NEC) requirements for overvoltage protection can be found in Art. 242. This Article is new with the 2020 NEC, and it replaces Art. 280 and Art. 285. Those Articles ...

Requiring only a handful of inexpensive components, the circuit breaker in Figure 1 responds to both overcurrent- and overvoltage-fault conditions. At the heart of the circuit, D 2, an adjustable, ...

Many system applications require that capacitors be connected together, in series and/or parallel combinations, to form a "bank" with a specific voltage and capacitance rating. The most critical ...

Australian scientists have identified seven methods to prevent PV losses when overvoltage-induced inverter disconnections occur. The methods include battery storage, reactive power inverters, export ...

To ensure reliability and safety for devices that run on ac and dc power lines, circuit protection is a definite design requirement. Unfortunately, there’s no universal protection solution. Varying ...

Authorities had scrambled to find answers after the April 28 outage Spain and Portugal were hit by widespread power blackouts in April. Officials revealed Tuesday (June 17) that it was caused by ...

IN their communication under the above heading, Messrs. Le Brocq and Cocks 1 redirect attention to a point that has been too often overlooked: namely, that the effectiveness of a metal as the cathode ...