Results 1 to 10 of about 12,628 (221)

A database ATP simulated waveforms of shunt reactor switching cases with vacuum breakers on motor circuits [PDF]

open access: yes, 2009
This paper presents a database ATP (Alternative Transient Program) simulated waveforms for shunt reactor switching cases with vacuum breakers in motor circuits following interruption of the starting current.
Kam, Shui-cheong, Ledwich, Gerard
core   +1 more source

Environmentally friendly compact air-insulated high-voltage substations [PDF]

open access: yes, 2018
This paper investigates the possible options for achieving a substantial reduction in a substation footprint using air-insulated switchgear as a more environmentally-friendly alternative to gas-insulated substations that use SF6 gas.
Albano, Maurizio   +3 more
core   +2 more sources

IMPULSE OVERVOLTAGES IN PROTECTION OF ELECTROTECHNICAL COMPLEXES

open access: yesOil and Gas Studies, 2015
Analyzed the reasons for occurrences of impulse surge in the power supply systems of communication facilities. To select the optimum system of protection recommended the use of the software.
I. S. Suhachev, S. V. Vorobjeva
openaire   +2 more sources

Impact of maximum back-EMF limits on the performance characteristics of interior permanent magnet synchronous machines [PDF]

open access: yes, 2006
Interior permanent magnet (IPM) synchronous machines are vulnerable to uncontrolled generator (UCG) faults at high speed that can damage the inverter. One approach to reducing this risk is to impose limits on the maximum machine back-EMF voltage at top ...
Aydin, M.   +4 more
core   +1 more source

The 8.4-GHz low-noise maser pump source assembly [PDF]

open access: yes
Improved pump source assemblies and new 8.4-GHz low noise traveling-wave masers (TWMs) were installed at the same time at Deep Space Stations 14 and 43 as part of the Mark IVA DSCC Antenna Microwave Subsystems upgrade. The pump source assemblies are part
Cardenas, R.
core   +1 more source

Random Generation of Arbitrary Waveforms for Emulating Three-Phase Systems [PDF]

open access: yes, 2011
This paper describes an apparatus for generating a signal representative of steady-state and transient disturbances in three-phase waveforms of an ac electrical system as described in IEEE Std 1159-09.
García Delgado, Antonio   +5 more
core  

Analytical models of probability distribution and excess noise factor of Solid State Photomultiplier signals with crosstalk

open access: yes, 2012
Silicon Photomultipliers (SiPM), also so-called Solid State Photomultipliers (SSPM), are based on Geiger mode avalanche breakdown limited by strong negative feedback.
Afek   +11 more
core   +1 more source

Conceptual design and feasibility evaluation model of a 10 to the 8th power bit oligatomic mass memory. Volume 3: Operation manual [PDF]

open access: yes
An operation manual is presented for the oligatomic mass memory feasibility model. It includes a brief description of the memory and exerciser units, a description of the controls and their functions, the operating procedures, the test points and ...
Horst, R. L., Nordstrom, M. J.
core   +1 more source

DETERMINATION OF THE LEVEL OF OVERVOLTAGE IN THE SECONDARY CIRCUITS OF SUBSTATIONS WHEN LIGHTNING IMPULSE VOLTAGE IS DISTRIBUTED IN HIGH-VOLTAGE BUSES

open access: yesИзвестия высших учебных заведений и энергетических объединенний СНГ: Энергетика, 2017
Lightning voltage impulse due to the waves of storm surge rolling out the high voltage line to a substation causes current to flow in the buses that, due to magnetic effect, induces overvoltage in the secondary circuit.
V. I. Glushko, E. A. Deryugina
doaj   +1 more source

Line Supply Overvoltage Failure Analysis and Protection Strategy Improvement of Ningbo Rail Transit Line 2 Phase 1 Trains

open access: yes机车电传动, 2017
Aiming at the problem that train traction blocked caused by the line supply overvoltage of Ningbo rail transit line 2 phase 1 train, the cause was analyzed, and with the simulation, an improved solution of overvoltage protection logic according to the ...
YI Jian, HUANG Huijian
doaj  

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