Please use this identifier to cite or link to this item:
|Title:||Ground-fault protection of an emergency or stand-by power system with multiple neutral-to-ground connections|
|Source:||Liew, A.C. (1992-03). Ground-fault protection of an emergency or stand-by power system with multiple neutral-to-ground connections. Electric Machines and Power Systems 20 (2) : 161-171. ScholarBank@NUS Repository.|
|Abstract:||In the operation of an engine-generator set, when used for emergency power, it is required that the neutral conductor be connected to the nearest available effectively grounded electrode. Therefore, any three-phase, four-wire system with properly grounded engine generator sets will have multiple neutral-to-ground connections. One connection will be at the service entrance with the other connection at each engine-generator set. When an electrical system has multiple neutral-to-ground connections, there may be problems in obtaining proper sensing of ground fault currents as well as nuisance tripping with unbalanced loads. These problems persist with the system in either its normal or emergency supply modes of operation or both. This paper discusses some of these problems and the methods of solution. A new and special ground-fault sensing scheme which can overcome these problems for such a multiple neutral-to-ground system is also presented.|
|Source Title:||Electric Machines and Power Systems|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Feb 17, 2018
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.