The paper presents the required parameters in the evaluation of the technical state for the High Voltage (HV) circuit breakers. It details some aspects regarding the influence of the kinematics characteristics to the circuit breakers performances. Also, it presents a possibility to use the artificial neural networks (ANN) in the analysis of the circuit breakers kinematics characteristics, in or...

Circuit breakers play an extremely important role in power systems, and Sulfur Hexafluoride (hereinafter referred to as SF6) gas is the medium for main functions of circuit breakers, it has insulation arc suppression. After excavation SF6 reports on its application electric equipment recently related literature, inspiring author summarize - unique characters suppression operation principle, exp...

The continuity in the electric supply of the electric installations is becoming one of the main requirements of the electric supply network (generation, transmission, and distribution of the electric energy). The achievement of this requirement depends from one side on the structure of the electric network and on the other side on the avaibility of the reserve source provided to maintain the su...

The low-voltage circuit breaker has been used for many years for network and persons protection. The review papers existing on these devices generally deal with electrical aspects or macroscopic information on the arc but few concern the “fine” understanding of arc behaviour from its ignition between the opening contact to the current limitation stage due to its presence in the splitter plates....

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...

Owing to very rapid growth in electronics and technology, it has become very essential to maintain power quality at the consumer end. Since power quality has vast no of assets, mainly important and frequently occurring disturbances are considered in this paper. Power quality is mainly defined by disturbances associated with voltage. However, the voltage disturbances can be classified based on t...

In order to protect wiring, facilities, human bodies and the like from electric accidents such as overcurrent to the load, a short circuit, ground fault or earth leakage of an electrical line, low-voltage circuit breakers, as typifi ed by molded case circuit breakers (MCCB) and earth leakage circuit breakers (ELCB), are installed in every type of machine, equipment, facility and building that u...

ENGLISH) Motivated by economic pressures, power utilities are increasingly looking for new ways of reducing their costs while maintaining the quality of supply. A promising concept is predictive or condition based maintenance of high voltage equipment, based on continuos knowledge of each device’s condition. Power transformers and high voltage circuit breakers (HVCBs) have been the focus of att...