Results 81 to 90 of about 420,105 (198)

A Review of Mitigation Methods for Overvoltage in Long-Cable-fed PWM AC Drives [PDF]

open access: yes, 2011
The phenomenon of overvoltage at motor terminals in long-cable-fed PWM AC drives poses a severe stress on motor insulation systems. The overvoltage is typically caused by the high change rate of the inverter output voltage (dv/dt) and the surge impedance
Zhang, Peng   +3 more
core  

Study on Formation and Control of Resonance Overvoltage of Overhead Contact System in Huaihua Railway Hub Area

open access: yes机车电传动, 2020
Aiming at the accidents of high-voltage electrical equipment in electric locomotive such as burn out of resistance-capacity absorption device, explosion damage of arrester, DC over-voltage of converter led by overhead line resonant overvoltage happening ...
Limin FENG
doaj  

A Review of Research Progress in Very Fast Transient Overvoltage (VFTO) Suppression Technology

open access: yes
The very fast transient overvoltage (VFTO) is characterized by steep wavefronts, high amplitude, and wide spectrum. These characteristics can lead to partial discharges or insulation breakdowns in potted insulators, which can lead to localized ...
Xixiu Wu   +3 more
core   +1 more source

Research on overvoltage suppression of interrupting no load transformer

open access: yesJournal of Engineering Science and Technology Review, 2013
Zhang Shuhao, Xiong Xinheng
openaire   +1 more source

Experimental Research of the Overvoltage in the Insulated Neutral Network

open access: yes
The isolated neutral network isolation resistance is often affected by the lightning discharge surge to the line cables or towers. Several overvoltage waves are maid at the moment of the lightning discharge surge.
Gvozdas, Vitalijus, Valatka, Povilas
core  

Coordinated preventive control strategy for transient overvoltage suppression in hybrid AC/DC sending-side systems

open access: yes
As a predominant issue within line-commutated converters-based high voltage direct current (DC) transmission systems, commutation failure may trigger transient overvoltage problems and the tripping of large-scale renewable generation sets in hybrid AC/DC
Tao Ding   +4 more
core   +1 more source

A PWM Method for Overvoltage Suppression in Long Cable Motor Drive Systems

open access: yes
In motor drive systems employing long cables, the LC network formed by the distributed capacitance of the cable and the inductance of the motor induces voltage oscillations at the motor terminals.
Junhyeok Moon
core   +1 more source

Photovoltaic system overvoltage protection

open access: yes, 2011
This paper deals with overvoltage protection strategy and methods for photovoltaic systems as renewable energy source. It describes some sample circuit connection with overvoltage protection devices and some overvoltage protection device ...
Balogh, Jozef, Petráš, Jaroslav
core  

Society for the Suppression of Vice subscription list [PDF]

open access: yes
Society for the Suppression of Vice subscription list ...
Society for the Suppression of Vice
core   +1 more source

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