Since the May 6, 2010 flash crash in the U.S., appropriate measures ensuring safe, fair and reliable markets become more relevant from the perspective of investors and regulators. Circuit breakers in various forms are already implemented for individual markets to ensure price continuity and prevent potential market failure and crash scenarios. However, coordinated inter-market safeguards have h...

electric power industry have always try to provide reliable electricity to customers and at the same time decrease system costs. high voltage circuit-breakers are an essential part of the power network. this study has developed a maintenance and replacement scheduling model for high voltage circuit- breakers that minimize maintenance costs while maintaining the acceptable reliability. this mode...

This article describes design, operation and experimental testing of a mechanical DC CB (Circuit Breaker) with parallel capacitors. The topology resembles hybrid but there are possible advantages in the costs since main semiconductor valve is replaced capacitors, performance this breaker inserts counter voltage earlier. A detailed PSCAD model employed to support design analyse operating princip...

In this letter, a monolithically integrated SiC circuit breaker device providing self-triggered blocking operation is presented. The proposed topology implemented into common 4H-SiC JFET technology, which offers conventional cell design and chip scaling opportunities. Basic implications are discussed on the basis of quasi-static electrical measurements fabricated nJFET, pJFET devices. experimen...

Abstract The circuit breaker is a device that cuts off and connects the load in power system, fault circuit, prevents accident from expanding, ensures safe operation. Detecting failures necessary to ensure systems’ safety. Before identification, must be identified positioned first. In this paper, identification technology based on SSD adopted, used identify mark voltage name quickly.

This report reanalyzes data from a survey of Ground-Fault Current Interrupters (GFCIs), conducted by the National Electrical Manufacturers Association (NEMA). In that study, participating home inspectors in a number of cities added testing of receptacle and circuit breaker GFCIs to their normal home inspections. The home inspectors reported this data to NEMA. Also as part of the study, homeowne...

How can the large power needs of future electric ships for propulsion, radar, and weapons systems be met given the prohibitive size and weight of the required number of standard 60 Hz AC generators and transformers? A solution may lie in a rugged, efficient, and compact solid-state, 10-20 kV Medium Voltage DC (MVDC) circuit breaker (Figure 1). In this paper, Diversified Technologies, Inc. will ...