Abstract Circuit breaker is an important electrical control on and off in the line, which refers to switch device that can close, load break current under normal loop conditions, abnormal conditions specified time. breakers are divided into high voltage circuit low according their range of use. Low common molded case breakers. Play a protective role safety lines appliances. When fire occurs, ac...

Influence of distributed generation systems in the distribution systems can increase the level of short-circuit current. The effectiveness of distributed generation systems is affected by the size, location, type of distributed generation systems technology, and the methods of connecting to distribution systems. Wind turbine system is the examples of distributed generation source. Not only does...

Abstract In order to understand the influence of 750 kV power transmission and transformation project on electromagnetic radiation surrounding environment, data electric field intensity, magnetic intensity noise from substation equipment system in some areas Gansu Province were monitored analyzed. The results showed that near circuit breaker, switch reactance main producing high intensity. brea...

The breaking capacity of rated current is one the important indexes to evaluate performance circuit breakers, which usually measured experimentally and cannot be analyzed in terms arcing characteristics opening process. Simulation methods based on magnetohydrodynamic (MHD) model arc can used obtain macroscopic motion within interrupter interaction with contacts, walls, splitter plates. Therefor...

The purpose of this paper is to acquire the remote electrical parameters like Voltage, Current, and Frequency from Smart grid and send these real time values over GSM network using GSM Modem/phone along with temperature at power station. This project is also designed to protect the electrical circuitry by operating an Electromagnetic Relay. The Relay can be used to operate a Circuit Breaker to ...

We report a novel form of xylem dysfunction in angiosperms: reversible collapse of the xylem conduits of the smallest vein orders that demarcate and intrusively irrigate the areoles of red oak (Quercus rubra) leaves. Cryo-scanning electron microscopy revealed gradual increases in collapse from approximately -2 MPa down to -3 MPa, saturating thereafter (to -4 MPa). Over this range, cavitation re...