Neutral current estimation for multi-grounded concentric neutral cable system

Author

Jing Yong ; Kan Yu

Author_Institution

State Key Lab. of Power Transm. Equip. & Syst. Security, Chongqing Univ., Chongqing, China

fYear

2014

fDate

25-28 May 2014

Firstpage

636

Lastpage

639

Abstract

Concentric neutral cable system is a most popular practice in distribution systems of North America. Because of the special structure of this type of cable, the concentric neutral conductor serves as a current-carrying conductor and the neutral current can´t be measured directly. The potential over loading of neutral conductor may result in cable over-heating. In order to understand the neutral current distribution along the cable, especially for multi-grounded neutral cable system, this paper presents a method to estimate the neutral current by the known three phase currents only. The impacts of each system parameters on the neutral current are also investigated.

Keywords

conductors (electric); distribution networks; neutral currents; power cables; current carrying conductor; distribution systems; multigrounded concentric neutral cable system; neutral current estimation; Cable shielding; Conductors; Equations; Grounding; Loading; Mathematical model; Power cables; Concentric neutral cable; Load imbalance; Neutral current;

fLanguage

English

Publisher

ieee

Conference_Titel

Harmonics and Quality of Power (ICHQP), 2014 IEEE 16th International Conference on

Conference_Location

Bucharest

Type

conf

DOI

10.1109/ICHQP.2014.6842869

Filename

6842869