Results 261 to 270 of about 12,733,262 (289)

Real-Time Detecting Method of Negative Sequence Current in Traction System

2007 8th International Conference on Electronic Measurement and Instruments, 2007
When electric locomotive moves in power system, it will produce negative sequence current, which will threat the electric equipments and the power system security operation. So it is very important to measure the value of negative sequence current rapidly and exactly. This paper introduces one new kind of method to measure the negative sequence current.
Dai Wenjin, Wu Songhui
openaire   +1 more source

The design of negative sequence current monitoring instrument based on DSP and ARM

2011 International Conference on Electric Information and Control Engineering, 2011
The negative sequence current monitoring instrument named NSCM can monitor the negative sequence current, which affect the safety and stability of the generator directly according to the criterion when generator drive unbalanced load. The hardware structure of the NSCM and the algorithm of the negative sequence based on average filtering are expressed ...
Zhi-qin Wang, Jian Liu, Xiao-dong Yan
openaire   +1 more source

Compensation of harmonics and negative sequence components in line current and voltage by a SuperSMES

IEEE Transactions on Appiled Superconductivity, 1999
A SuperSMES is composed of inverters connected in series to a power system and another inverter in parallel, and a superconducting magnet for energy storage. It is a universal power quality controller because of its multi-purpose ability. The application presented here aims at a general filtering system in large industrial power consumers.
T. Ise, J. Ishii, S. Kumagai
openaire   +1 more source

Negative Sequence Current in Megawatt Hydro Generators at Uprated Unbalanced Loads

2018 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES), 2018
The allowable negative sequence current (NSC) in large generator is 10% of its rated current as per IEC 60034-1 standard, irrespective of its rotor arrangement. This paper scrutinizes the NSC capability of a 250 MW salient pole hydro-generator following an unbalance at rated and above rated loads.
C. Carunaiselvane, Thanga Raj Chelliah, S.V. Appa Sarma   +2 more
openaire   +1 more source

Using negative sequence current to detect line-to-line faults in transformers

2016 IEEE Pulp, Paper & Forest Industries Conference (PPFIC), 2016
Faults inside the primary 15KV windings of transformers usually begin as line-to-line faults, not involving ground, and with current magnitudes far lower than three phase bolted faults or the time-over-current or instantaneous feeder circuit settings.
openaire   +1 more source

Negative-sequence currents and losses in the solid rotor of a turbogenerator

IEE Proceedings C Generation, Transmission and Distribution, 1980
A.G. Jack, R.L. Stoll
openaire   +1 more source

Systemic therapy for hormone receptor-positive/human epidermal growth factor receptor 2-negative early stage and metastatic breast cancer

Ca-A Cancer Journal for Clinicians, 2023
Hope Rugo, Özge Gümüşay, Laura A Huppert   +2 more
exaly  

Impact of Inverter-Based Resources on Negative Sequence Quantities-Based Protection Elements

IEEE Transactions on Power Delivery, 2021
Ka Wing Chan, Ulas Karaagac, Evangelos Farantatos   +2 more
exaly  

A Novel Negative Sequence Current Control System for Electrified Railway

2021
Shenao Xu, Qintian Zhang, Zhiwei Xu
openaire   +1 more source

Change in Negative Sequence Current-Based Islanding Event Detection

2022
Shubham Kumar, Munna Kumar, Jitendra Kumar   +2 more
openaire   +1 more source