Results 221 to 230 of about 130,007 (263)
Some of the next articles are maybe not open access.
Incorrect Operations of Pilot Scheme with Ground Overcurrent Protection
2019 IEEE Canadian Conference of Electrical and Computer Engineering (CCECE), 2019The incorrect operations of the pilot scheme Permissive Overreaching Transfer Trip (POTT) with ground overcurrent element are evaluated in this paper. The practical experience of several in practice incorrect operations are gathered to list the associated reasons in setting relay steps.
F. A. O. Gouveia +2 more
openaire +1 more source
Pilot-wire protection of transmission lines
Electrical Engineering, 1960THE PRESENT pilot-wire protective systems for transmission lines employing leased pilot-wire circuits are an outgrowth of conventional differential protective systems for other types of electric apparatus. Thus, these line-protective systems are characterized by the fact that the pilot wires are part of the differential connection between the current ...
openaire +1 more source
Pilot Backup Protection Based on Wireless Communication
2017 Ninth Annual IEEE Green Technologies Conference (GreenTech), 2017The paper presents a back-up protection scheme for loop system from all types of fault based on the directional element. The traditional back-up protection schemes such as distance protection and overcurrent protection are not suitable for the loop system.
Zhenmin Tang, Qiushi Wang, George Karady
openaire +1 more source
Anti-dazzling protection for Air Force pilots
SPIE Proceedings, 2012Under certain conditions, laser directed at aircraft can be a hazard. The most likely scenario is when a bright visible laser causes distraction or temporary flash blindness to a pilot, during a critical phase of flight such as landing or takeoff. It is also possible, that a visible or invisible beam could cause permanent harm to a pilot's eyes.
Ariela Donval +3 more
openaire +1 more source
Application of digital radio for distribution pilot protection
2008 IEEE Rural Electric Power Conference, 2008The traditional solutions for protecting networked distribution lines, sub-transmission lines, and industrial facility incoming supply lines use some form of pilot protection. A significant challenge for pilot protection, especially in retrofit situations, is the cost of installing pilot communications channels.
Rich Hunt +3 more
openaire +1 more source
Pilot Protection Applied in Distribution Network with DG
Advanced Materials Research, 2012Abstract: Once DG is connected into distribution system, the system will turn from single-source radical network to multi-source network. The power flow will also be changed, which might lead to unreliability of the relay protection. Firstly, the paper analyzes the factors which cause these issues, and then proposes a method to accomplish the procedure
Yu Sheng Zhou +3 more
openaire +1 more source
Pilot Studies for Groundwater Protection in Czechoslovakia
1981Abstract Pilot studies have been carried out as a part of Hydrocarbon Pollution Prevention Project in the years 1977 to 1980. Section of Mesozoic basin, with overall resources exceeding 6000 1 pro sec. has been selected. Groundwater is bound to sandstones with shallow unconfined aquifer.
openaire +1 more source
Pilot Project on Rehabilitation and Protection of Tugai Forests
SPE International Conference on Health, Safety, and Environment in Oil and Gas Exploration and Production, 2008Abstract Tugai forests are a threatened ecosystem in Azerbaijan. These forests currently occupy approximately 18,000 Ha, less than 10% of the extent of just a few decades past. A first of its kind in Azerbaijan, BP's Regional Biodiversity project established a sustainable model for the rehabilitation and protection of this national ...
openaire +1 more source
Pilot protection of lines emanating from DFIG-based wind farms during balanced faults
International Journal of Electrical Power and Energy Systems, 2023Xu Li, Yuping Lu
exaly