In order to continuously improve the transparency of power distribution grids, it is important to have precise knowledge about the relevant conditions in the local grid. This is achieved by utilizing ...

This is the second part of a two-part series on the methodologies used to find the short circuit current duties of circuit breakers and fuses. The first part, Short Circuit Current Duties of Circuit ...

A bolted short circuit occurs in the series R-L circuit of the given figure with V = 30 kV, X = 10Ω , R = 0.9Ω, and with maximum dc offset. The circuit breaker opens 3 cycles after fault inception.

With proper attention to protection requirements, a boost conversion stage provides system benefits via high voltages locally available at the load. Output short-circuit faults, overload conditions, ...

NFI Group cites battery risks in recall of zero-emission buses affecting 680 vehicles; company works on permanent solution.

Using a multi-shunt-based current-monitoring circuit with a 50-MHz op amp delivers an overcurrent detection response time of ...

Short circuit current ratings should not be overlooked during panel design. Negative impacts can occur to production, equipment and, worst case, plant personnel. Per 2014 NEC Article 100, short ...

Federal investigators on Tuesday said a short circuit was to blame for the failure of a safety system designed to prevent a Red Line train from accelerating and dragging a passenger to his death last ...

Note: This article is based on the 2011 NEC. Article 430 provides the requirements for electric motors while Art. 440 offers amended and additional requirements for hermetic motors, such as those used ...