Results 251 to 260 of about 11,042 (303)

Rectifier Fault Currents---II

Transactions of the American Institute of Electrical Engineers, 1949
A comprehensive procedure for the analysis of fault currents in power rectifiers has been developed and some of the more usual cases have been analyzed for the 6-phase double-Y circuit. However, further analyses are still required to cover all the conditions which may be encountered in practice and provide a ready means for determining fault currents.
C C Herskind
exaly   +4 more sources

A new iterative method for fault currents calculation which models arc resistance at the fault location

Electrical Engineering, 2006
In order to calculate fault currents in distribution systems accurately, the fault model must also include the electrical arc existing at the fault point and playing an important role in the fault currents calculation.
Vladimir Terzija, Rade M Ciric
exaly   +2 more sources

Rectifier Fault Currents

Transactions of the American Institute of Electrical Engineers, 1945
CURRENTS in excess of normal, or fault currents, flow in rectifier circuits under conditions of arc-back or d-c short circuit. In normal service, faults are imposed on rectifiers by both the arc-backs that occur in the rectifier itself and the short circuits that occur in the external d-c system.
C. C. Herskind, H. L. Kellogg
openaire   +2 more sources

Multicell Fault Current Limiter

IEEE Transactions on Industrial Electronics, 2014
A multicell fault current limiter (MCFCL) is proposed in this paper. The MCFCL is composed of multiple fault current limiting cells. Each fault current limiting cell consists of a fault current limiting inductor and a power electronic module. The proposed MCFCL has the flexibility in expanding the operation voltage by increasing the number of fault ...
Wenyong Guo, Liye Xiao, Shaotao Dai, Zhifeng Zhang, T. Ma, Yuanhe Li, Xi Xu   +6 more
openaire   +1 more source

Nonsuperconducting Fault Current Limiter With Controlling the Magnitudes of Fault Currents

IEEE Transactions on Power Electronics, 2009
In this paper, a diode-bridge-type nonsuperconductor fault current limiter (NSFCL) is proposed. The structure has the capability of controlling the DC reactor current that yields to control the magnitude of fault current. In order to control the magnitude of DC reactor current, a discharging resistor is used in the proposed structure.
M.T. Hagh, M. Abapour
openaire   +1 more source

A novel solution for fault current suppression in transmission systems based on fault current splitters

Electric Power Systems Research, 2021
Abstract To mitigate the threat from increasing fault current level in high-voltage transmission systems, a “dredging theory” based on the fault current splitter (FCS) was proposed to help the over-duty circuit breaker clear the fault. However, detailed practice of this theory is not fully studied.
Dawei Chen, Canbing Li, Zhenci Xu, Kai Sun, Bin Zhou, Da Xu, Long Zhou   +6 more
openaire   +1 more source

Fault-Current Measuring Device

Transactions of the American Institute of Electrical Engineers, 1946
IN electric power system operation numerous problems are encountered in analyzing the results of short circuits and in the physical location of the trouble. Some devices now available for analyzing short circuits in a-c circuits are the oscillograph, the annunciator ammeter, and a magnetic link device requiring rectifiers.
openaire   +1 more source

Fault Location with Current Monitoring

1991, Proceedings. International Test Conference, 2005
Recently there has been renewed interest in fault detection in static CMOS circuits through current monitoring (“Iddq testing”). It is shown that accurate defect (diagnosis miay be performed with a combination of current and voltage observations. The proposed system combines a simple single fault model for test generation with a more realistic multiple
openaire   +1 more source