Results 241 to 250 of about 136,863 (312)

Antarctica: modelling [PDF]

, 2004
Huybrechts, Philippe
core  

An In Situ Characterisation Method for 3-D Electrospun Foams. [PDF]

Nanomaterials (Basel)
Almpanidis K, Howard CJ, Stolojan V.
europepmc   +1 more source

Preparation and Properties of Carbon Fiber/Flexible Graphite Composite Grounding Material. [PDF]

Materials (Basel)
Fan M, He H, Wang L, Wang X, Tan B.
europepmc   +1 more source

Palliative Care in Intensive Care Units: Nurses' Perspectives on Challenges and Strategies. [PDF]

Nurs Crit Care
da Cunha DFA, Alves JCF, Marques AJS, Santos RFS, da Mota LAN.   +4 more
europepmc   +1 more source

Half a century of dynamic instability following the ocean-driven break-up of Wordie Ice Shelf. [PDF]

Nat Commun
Dømgaard M, Millan R, Andersen JK, Scheuchl B, Rignot E, Izeboud M, Bernat M, Bjørk AA.   +7 more
europepmc   +1 more source

Smart technique for calculating fault current model parameters using short circuit current measurements. [PDF]

Sci Rep
Mahmoud RA, Malik OP, Fayek WM.
europepmc   +1 more source

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High Resistance Grounding—Avoiding Unnecessary Pitfalls

IEEE Transactions on Industry Applications, 2007
The high resistance grounding (HRG) of 480-4160-V industrial power systems increases service continuity, enhances personnel safety, and reduces equipment damage when a ground fault occurs. HRG allows maintenance personnel to quickly and safely locate a ground fault while avoiding unscheduled downtime.
David Murray, John Dickin, Robert Hanna, Tom Morin   +3 more
openaire   +1 more source

Directional ground fault indicator for high-resistance grounded systems

IEEE Technical Conference Industrial and Commerical Power Systems, 2003
Locating ground faults is a difficult and challenging problem for low-voltage power systems that are ungrounded or have high-impedance grounding. Recent work in pilot signals has renewed efforts in developing fault location methodologies. This paper presents a method for directional ground-fault indication that utilizes the fundamental frequency ...
T. Baldwin, F. Renovich, L.F. Saunders
openaire   +1 more source

High Resistance Neutral Grounding [History]

IEEE Industry Applications Magazine, 2012
The last two decades of the 19th century witnessed a rising interest in electrical power projects and a heated debate about using direct current (dc) or alternating current (ac) systems as the backbone of generating and transmitting power. The debate escalated and it was dubbed the "War of Currents." By 19th century measurements, the Niagara Falls ...
Barry Brusso, Rasheek Rifaat
openaire   +1 more source

Advanced concepts in high resistance grounding

2012 Petroleum and Chemical Industry Conference (PCIC), 2012
Resistance grounding is relatively simple and easy to apply in radial distribution systems at Low Voltage. When high resistance grounding is applied, using one Neutral Grounding Resistor at the supply transformer, an alarm system to detect and indicate the ground fault is then required by the installation codes.
Ajit Bapat, Robert Hanna, Sergio Panetta
openaire   +1 more source