Results 81 to 90 of about 19,317 (224)

Technology Research on Rail Potential Limit of Urban Rail Transit

机车电传动, 2018
The OVPD device is an important component of the protective equipment in the power supply system of urban rail transit. Basic principle of rail potential limiting protection for urban rail transit was analyzed, and a new type of rail potential limiter ...
CHEN Chaolu, YANG Yang, XIE Peijin, HU Ping, CHEN Hui   +4 more
doaj  

The optimal allocation of thyristor-controlled series compensators for enhancement HVAC transmission lines Iraqi super grid by using seeker optimization algorithm

Open Engineering
Meta-heuristic approaches evaluate the optimum size and position of flexible alternative current transmission systems power systems. The seeker optimization algorithm (SOA) technique was used to solve power engineering optimization problems with better ...
Jawad Ihsan Mousa, Abdulrasool Ali Qasim, Mohammed Abbas Q., Majeed Wafaa Said, Salim ALRikabi Haider TH.   +4 more
doaj   +1 more source

A dc to dc converter [PDF]

, 1984
The object of the invention is to provide an improved converter for converting one direct current voltage to another. A plurality of phased square wave voltages are provided from a ring counter through amplifiers to a like plurality of output ...
Garrett, H., Gould, J. M., Matheney, J. L., Willis, A. E.   +3 more
core   +1 more source

Compact Design and Impact Ionization: Utilizing Small-Sized Thyristors in a 4-Stage Marx Generator

Applied Sciences
In CERN’s beam transfer lines, high-voltage generators have traditionally relied on thyratron switches; however, thyratrons present operational challenges and are also becoming increasingly hard to source.
Alicia del Barrio Montañés, Viliam Senaj, Thomas Kramer, Georg Müller, Martin Sack   +4 more
doaj   +1 more source

Design and Research on Terminal Structure of 8.5 kV UHV Thyristor With Low Proportion

机车电传动, 2021
As an important device for energy conversion and transmission, high-power thyristors are widely used in fields such as high-voltage direct current transmission.
Chen ZHANG, Dong LIU, Maosen TANG, Zeyu WU, Zongyao ZHOU, Xinglai GE   +5 more
doaj  

Study on the Influence of Inconsistent Valve Parameters on LCC-HVDC Commutation and Operation

IEEE Access, 2019
Line commutated converter high voltage direct current (LCC-HVDC) transmission has unique advantages and plays an irreplaceable role in the power system. It is of great significance to study the commutation process.
Yanyong Yang, Pinjia Zhang
doaj   +1 more source

Input current shaped ac-to-dc converters [PDF]

Input current shaping techniques for ac-to-dc converters were investigated. Input frequencies much higher than normal, up to 20 kHz were emphasized. Several methods of shaping the input current waveform in ac-to-dc converters were reviewed.

core   +1 more source

An Experimental Set-up Involving Low-cost Digital Controller to Study the Magnetizing Inrush Current in a Transformer using Point-on-Wave Switching Technique

Power Electronics and Drives
Generally in under-graduate studies, magnetizing inrush current (MIC) is discussed theoretically without giving much practical exposure. This paper presents the development of a low cost experimental set-up using a digital controller to study the MIC and
Nayak Ananya, Chatterjee Dipankar, Dalapati Suvarun   +2 more
doaj   +1 more source

Large Capacity Crowbar for HL-3 Fusion

南方能源建设
[Introduction] Facing the rapid transfer of extreme fault energy of the HL-3 fusion scientific apparatus, it is required to configure a large-capacity bypass switch for short-circuit protection.
Linjun WU, Haiyan LI, Xiao LEI, Yi WU, Shaoxuan LIU   +4 more
doaj   +1 more source

Англійська мова для студентів електромеханічних спеціальностей [PDF]

, 2013
Навчальний посібник розрахований на студентів напряму підготовки 6.050702 Електромеханіка. Містить уроки, що структуровані за тематичними розділами, граматичний коментар, короткі англо-український і українсько- англійський ...
Азюковський, Олександр Олександрович, Балахонцев, Олександр Васильович, Бешта, Олександр Степанович, Введенська, Тетяна Юріївна, Долгов, Олександр Михайлович, Сьомін, Андрій Олександрович, Хілов, Віктор Сергійович, Іванов, Олексій Борисович   +7 more
core