Results 241 to 250 of about 3,790,657 (295)

Considerations for differential protection in LV buses

2016 IEEE/IAS 52nd Industrial and Commercial Power Systems Technical Conference (I&CPS), 2015
Current differential principles are well known and commonly used for protection of medium and large size transformers, important motors, medium voltage (MV) generators, medium and high voltage buses, and any type of important power equipment with measurable input and output currents.
Lubomir Sevov, Marcelo Valdes
openaire   +1 more source

A Multilayer Differentiated Protection Services Architecture

IEEE Journal on Selected Areas in Communications, 2004
Metropolitan area and long-haul networks are migrating toward the deployment of optical mesh technologies. This requires, among other things, a new generation of highly intelligent protection and restoration mechanisms to perform functions of protection and bandwidth management.
Hassan Naser, Hussein T. Mouftah
openaire   +2 more sources

Shared path protection with differentiated reliability

2002 IEEE International Conference on Communications. Conference Proceedings. ICC 2002 (Cat. No.02CH37333), 2003
The authors (Fumagalli and Tacca (2001)) introduced the concept of differentiated reliability (DiR) applied to dedicated path protection (DPP) switching in wavelength division multiplexing (WDM) rings. By means of the DiR concept, a network can be designed to provide multiple degrees of reliability and efficiently satisfy the user-specific requirements,
Andrea Fumagalli, Marco Tacca, Ferenc Unghváry, András Faragó   +3 more
openaire   +2 more sources

Path-based Protection in WDM Networks with Differentiated Quality-of-Protection

2006 IEEE International Conference on Communications, 2006
The design of a survivable network with path-protection involves the provisioning of a primary and a backup path for every connection request. To optimize bandwidth usage under path-based protection, backup paths are allowed to share bandwidth under single failure model.
Yu Lin, Haitham S. Hamza, Jitender S. Deogun   +2 more
openaire   +2 more sources

Protection of Transformer by Using Differential Protection Scheme

2023
Differential protection is provided in the electrical power transformer which are higher rated. This type of protection can detect internal faults in the transformer. However, it cannot prevent external faults from occurring in the transformer. If a short circuit is detected in the bushings, then the Buchholz relay cannot effectively cover it.
Shirsat, Kaushal Ravindra, Gawade, Akshay Vithal, Pirankar, Mayuresh Gurunath, Sawant, Shivaji Sanjay, Hadkar, Dikasha Anant   +4 more
openaire   +1 more source

Instantaneous bus-differential protection

Electrical Engineering, 1949
CURRENT TRANSFORMER core saturation has contributed largely to the difficulty of obtaining satisfactory bus differential relaying in the past. The scheme here proposed uses differentially connected standard bushing current transformers, and is supported by test data permitting wide application.
H. T. Seeley, F. Von Roeschlaub
openaire   +1 more source

Differentially protected .alpha.-aminoglycine

The Journal of Organic Chemistry, 1986
Synthese des (amino N-benzyloxycarbonyl) et (amino N-t-butoxycarbonyl) glycines.
Mark G. Bock, Robert M. DiPardo, Roger M. Freidinger   +2 more
openaire   +1 more source

Syntheses of differentially protected isocoumarins

Tetrahedron, 2010
Syntheses of an isocoumarin subunit suitable for the completion of purpuromycin are outlined. Specifically, work targeting an orthogonally protected isocoumarin (eventually 12% yield over 12 steps) and an improved synthesis of a symmetrically protected isocoumarin (18% over 10 steps) are described.
Andrew N. Lowell, Philip D. Wall, Stephen P. Waters, Marisa C. Kozlowski   +3 more
openaire   +1 more source

Transformer Differential Protection

2023 International Conference for Advancement in Technology (ICONAT), 2023
Carlos P. Pacheco Cárdenas, Edison A. González González, Flavio A. Quizhpi Palomeque   +2 more
openaire   +1 more source

Current-differential protective schemes

1993
It will be clear from the previous chapter that overcurrent and earth fault protective equipment employing time grading and directional detection cannot provide correct discrimination on all power networks and in many instances the clearance times for some faults would not be acceptable.
C. Christopoulos, A. Wright
openaire   +1 more source