Results 111 to 120 of about 10,715 (249)

Research on Transient Process of Electric Locomotive Auto-passing Neutral Section with Load

机车电传动, 2016
To theoretically analyze the overvoltage and overcurrent when the train runs through neutral section under traction condition and regeneration condition, the equivalent electrical circuit was developed based on T equivalent circuit of transformer.
Liu Ling, Xiong Chenglin
doaj  

A Study on Excitation Inrush Current and Overvoltage Mitigation Strategies Utilizing Phase Selection Control

Energies
To address the challenges of system failures and equipment damage caused by excitation inrush currents and overvoltages during no-load energization of high-speed locomotive transformers, a simulation model was developed utilizing PSCAD electromagnetic ...
Junting Yan, Qingfeng Wang, Jianqiong Zhang, Xiangqiang Li   +3 more
doaj   +1 more source

Vibration-powered sensing system for engine condition monitoring

Condition monitoring is becoming an established technique for managing the maintenance of machinery in transport applications. Vibration energy harvesting allows wireless systems to be powered without batteries, but most traditional generators have been ...
Al-Hashimi, Bashir M., Barrow, Stuart, Merrett, Geoff V., Weddell, Alex S.   +3 more
core  

Spacecraft Microminiature PAM Decommutator System [PDF]

Operation and testing of spacecraft microminiature PAM decommutator ...

core   +1 more source

Design of a high-performance single-phase offline UPS with reduced switching time [PDF]

, 2012
A high performance single phase offline UPS with reduced switching time is proposed in the present paper. The proposed UPS can protect loads from supply outage, overvoltage and undervoltage.
Pinto, Delfim A., Sepúlveda, João
core  

Optimizing Lightning Arrester Selection for 275kV EHV Substations: A Comparison of Overvoltage Analysis with Software and Manual Calculations

Jurnal Nasional Teknik Elektro
A substation is one of the essential aspects of an electrically interconnected system, especially in a grid utility. Power generation, transmission, and distribution systems always need a continuous power supply to the customer.
Bagus Irawan Saputra, Marsul Siregar, Lanny W Panjaitan   +2 more
doaj   +1 more source

Research on the impact of transformer switching-off on core residual magnetism

Zhejiang dianli
Magnetizing inrush current caused by transformer no-load switching can lead to various issues in power grid operations. Techniques such as phase-controlled switching are effective in mitigating these effects， with the key factor being the measurement of ...
HAN Xiao, CHEN Haotian, ZHOU Jia, CHEN Wei, CHEN Deshu   +4 more
doaj   +1 more source

Partial discharge behavior under HVDC superimposed with transients [PDF]

, 2017
Azizian Fard, M., Farrag, M., Hepburn, D.M., Reid, A.J.   +3 more
core   +2 more sources

Development program for 35 watt traveling-wave tube space amplifier Final report, 30 Jun. 1967 - 30 Sep. 1969 [PDF]

Development of 35-watt, S band, traveling wave tube amplifier for Saturn 5 instrument ...
Dornseif, E. R., Spica, A., Jr., Walters, G. C.   +2 more
core   +1 more source

Power quality and electromagnetic compatibility: special report, session 2 [PDF]

, 2015
The scope of Session 2 (S2) has been defined as follows by the Session Advisory Group and the Technical Committee: Power Quality (PQ), with the more general concept of electromagnetic compatibility (EMC) and with some related safety problems in ...
Desmet, Jan, Heimbach, Britta, Renner, Herwig   +2 more
core   +1 more source