Impact of unsymmetrical loads in distribution networks
Gapuev, Mansur (2009)
Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi-fe200906241638
https://urn.fi/URN:NBN:fi-fe200906241638
Tiivistelmä
Since it is virtually impossible to balance loads in three-phase system, unbalance
in a varying degree exists almost in all distribution networks. The aim of
the thesis is to analyze the impact of this unbalance subject to different configurations
of distribution system and winding connection of the supplying transformer.
Also impact of the voltage unbalance on the equipment is investigated.
In order to make the investigation more visual, the following calculations
have been conducted:
- Unsymmetrical load in four-wire star connected network
- Unsymmetrical load in four-wire star connected network with broken
zero conductor (or three-wire network).
- Unsymmetrical load when the supplying transformer is so-called zigzag
transformer.
PDF created
in a varying degree exists almost in all distribution networks. The aim of
the thesis is to analyze the impact of this unbalance subject to different configurations
of distribution system and winding connection of the supplying transformer.
Also impact of the voltage unbalance on the equipment is investigated.
In order to make the investigation more visual, the following calculations
have been conducted:
- Unsymmetrical load in four-wire star connected network
- Unsymmetrical load in four-wire star connected network with broken
zero conductor (or three-wire network).
- Unsymmetrical load when the supplying transformer is so-called zigzag
transformer.
PDF created