Results 101 to 110 of about 1,562 (203)

Establishment Mechanism of Power-Frequency Follow-Current Arc on Medium-Voltage Insulated Conductors Under Lightning Overvoltage

Inventions
Lightning-induced breaking accidents of medium-voltage insulated conductors pose a serious threat to the safety of distribution networks, and the key cause lies in the establishment and sustained combustion of the power-frequency follow-current arc after lightning overvoltage breakdown. This paper systematically investigates the formation mechanism and
Xin Ning, Rui Yu, Longchen Liu, Jiayi Wang, Jingxin Zou, Hao Wang, Tian Tan, Huajian Peng, Xin Yang   +8 more
openaire   +1 more source

Current-fed Step-up DC/DC Converter for Fuel Cell Applications with Active Overvoltage Clamping

, 2010
Current-fed Step-up DC/DC Converter for Fuel Cell Applications with Active Overvoltage ClampingIn order to use hydrogen fuel cells in domestic applications either as main power supply or backup source, their low DC output voltage has to be matched to the
Aleksandrs Andreiciks, Oskars Krievs, Ingars Steiks   +2 more
core   +1 more source

A CASE STUDY OF OVERVOLTAGE PROTECTION OF A MICROWAVE REPEATER STATION

, 2003
Ever since inception, the electric power and communication systems are exposed to dangerous overvoltage surges starting from lightning to service frequency temporary overvoltage waves with disastrous consequences.
Valsalal, P., Udayakumar, K.
core  

Research on the Influence of Power Grid on the Operation of Voltage Source Inverter

Kongzhi Yu Xinxi Jishu, 2017
Three-phase input current unbalance is often happened in inverters, which causes devices damaged by overvoltage or over-current. Influences of grid unbalance, line impedance and multi-load on voltage source inverter and their mechanisms were analyzed ...
WANG Lucheng, HE Donglin, ZHANG Fengjiang   +2 more
doaj  

Research on ferromagnetic resonance type recognition of support vector machine based on chaos theory

AIP Advances
This study presents an innovative method for identifying ferroresonant overvoltage types in power systems by integrating chaos theory with support vector machine classification.
Yuliang Zhang, Na Liu, Xiao Chen, Yujie Chen, Haozhi Qin   +4 more
doaj   +1 more source

Study on Lightning Intruding Overvoltage in Yantan Extension Substation

, 2014
500kV substation is especially important to the grid of our country, once it encounters lightning damage, the safety and reliability of the whole power system will be directly affected.
Wang, Xin Zhi, Feng, Cong, Lin, Lin Lin, Zeng, Tao Hong, Tian, Gang Wen, Xiao, Huai Zhi   +5 more
core  

Investigations of power quality problems in modern buildings

, 2011
This thesis was submitted for the degree of Master of Philosophy and awarded by Brunel University.This thesis presents the results of measurements made in a typical office building (Tower A) and a Residential building (Kilmorey Hall), all located in the ...
Olatoke, Abraham
core  

Soft switching converter with power limiting feature

, 1999
A new zero voltage, soft switching converter is presented. This converter implements ZVS to minimise switching losses and it has special output power limiting characteristics.
Pong, MH, Poon, NK, Ho, WC
core  

Chladni figures reduce ohmic losses in alkaline electrolysis. [PDF]

Ultrason Sonochem
Agrež V, Heidary Z, Gavaises M, Petkovšek R, Ohl CD.   +4 more
europepmc   +1 more source

High-resolution Dataset of Electric Vehicle Charging Responses Under Varied Power Quality Disturbances. [PDF]

Sci Data
Li H, Zhang Y, Yang S, Liu X.
europepmc   +1 more source