Short-circuit protection for direct-current sub-stations

Fast-Clamped Short-Circuit Protection of IGBT’s

Identification of fault current during the operation of a power semiconductor switch and activation of suitable remedial actions are important for reliable operation of power converters. A short circuit is a basic and severe fault situation in a circuit structure, such as voltage-source converters. This paper presents a new active protection circuit for fast and precise clamping and safe shutdo...

Short-Circuit Current Modeling for CMOS Standard Cells Power Characterization

Short-circuit currents contribute signiicantly to the total power consumption of CMOS circuits. In this paper we describe a procedure to characterize libraries of standard cells in order to extract information on the power dissipation to be used later in logic-level simulators. Ours is a black box approach in which cells are characterized without looking at the internal nodes. The objective is ...

A New Protection Circuit of IGBT (Insulated Gate Bipolar Transistor) for Short-Circuit Withstanding Capability

CDM in Sub-Stations by Replacement of SF6 Gas in Circuit Breaker

This paper gives a case of large Sub-Station Clean Development Mechanism (CDM) Project to analyze CDM project’s influence on India’s Sustainable Development. SF6 gas is being extensively used in circuit breakers. SF6 gas has the highest Global warming potential which is 23900 times of Carbon Dioxide. Extensive Survey of SubStation using SF6 circuit breaker has been done in a sample state of Ind...

crystalline silicon solar cell engineering to improve fill factor, open circuit voltage, short circuit current and overall cell efficiency

design and optimization of a single crystalline silicon (c-si) solar cell is performed to achieve the maximum light conversion efficiency. various parameters such as doping concentration and thicknesses, and geometrical dimension of surface pyramids are studied. the inverted surface pyramid is used to increase the efficiency of the solar cell, and engineered oxide layer is used as the passivati...