TRANSACTIONS OF THE KRYLOV STATE RESEARCH CENTRE

Science journal

 
ISSN (print) 2542-2324 /(online) 2618-8244


Articles of The Transactions of KSRC








Ground currents at dockside trials of ship electric plant



Full text article ( in russian )

Year

 
2017

Issue

 
379

Volume

 
1

Pages

 
115-119

Caption

 
Ground currents at dockside trials of ship electric plant

Authors

 
Tsitsikyan G.N., Baranov Yu.D., Semenov М.Yu

Keywords

 
dockside trials, single line-to-ground fault, loadbank, швартовные испытания, однофазное замыкание, нагрузочное устройство.

Summary

 
Object and purpose of research. Estimation of ground currents at dockside trials of ship electric plant using loadbank.
Methods. Ground currents are estimated at different neutral point connection (from insulated to dead-grounded neutral) taking into account shore cable line.
Main results. Relationships to define the ground current at different neutral point connections are derived. The loadbank and its regulated element are described. Options are suggested for reducing the size of loadbanks without compromising the cooling efficiency, while retaining the rated power factor.
Conclusion. Current in neutral is generally a clear sign of reduced isolation resistance. In this case the neutral current is three times the zero-sequence current.

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ISSN (print) 2542-2324 / ISSN (online) 2618-8244

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