Arc voltage for arcing faults on 25(28)-kV cables and splices

Journal Article · Thu Jul 01 04:00:00 EDT 1993 · IEEE Transactions on Power Delivery (Institute of Electrical and Electronics Engineers); (United States)

DOI:https://doi.org/10.1109/61.252606· OSTI ID:6046008

Koch, B ^[1]; Christophe, P ^[2]

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1. Inst. de recherche d'Hydro-Quebec, Varennes (Canada)
2. Hydro-Quebec, Montreal, Quebec (Canada)

Hazards to people and property due to arcing faults on medium-voltage underground cables and splices are related to the arc power dissipated in the environment by the arc. However, if the fault current may be accurately predicted from known circuit parameters, the arc voltage needed to evaluate the arc's power has no analytical expression due to the fact that the arc resistance is non-linear. On the other hand, the arc voltage is also strongly dependent on the inherent physical properties of the faulted equipment, so that in order to establish the arc voltage value and shape developed by different currently used types of equipment, a series of staged tests was performed at IREQ's high-power laboratory and other available data were collected. The results obtained prove that for arc power calculation purposes the arc voltage curve may be considered flat-topped and of constant amplitude specific to the type of faulted equipment.

• OSTI ID: 6046008
• Journal Information: IEEE Transactions on Power Delivery (Institute of Electrical and Electronics Engineers); (United States), Journal Name: IEEE Transactions on Power Delivery (Institute of Electrical and Electronics Engineers); (United States) Vol. 8:3; ISSN 0885-8977; ISSN ITPDE5
• Country of Publication: United States
• Language: English

Related Subjects

24 POWER TRANSMISSION AND DISTRIBUTION
240301* -- Power Transmission Lines & Cables-- Power Cables-- (1990-)
CURRENTS
ELECTRIC ARCS
ELECTRIC CURRENTS
ELECTRIC DISCHARGES
ELECTRICAL FAULTS
JOINTS
POWER TRANSMISSION
POWER TRANSMISSION LINES
UNDERGROUND POWER TRANSMISSION