BEV
bus
CHP
CIP
CNG
NOX
ORC
RES
    Print  

VORŠIČ, Ž., KUMPERŠČAK, V., PIHLER, J.
HEATING OF CONDUCTORS IN STEADY STATE
KOMUNALNA ENERGETIKA / POWER ENGINERING, 15
Several factors influence the choice of conductor cross-section when planning distribution and transmission networks, such as voltage drop, loss of power, stability, protection and others. Important factor is also conductor temperature rise above surrounding temperature. To determine it one must know maximum continuous current which determines maximum allowed conductor temperature. The temperature of the conductor affects the conductor sag between the pillars and determines the change in tensile strength due to heating. Conductor temperature is authoritative guide for selecting conductors for short connecting lines in extreme condition. Three temperatures are relevant: Joule heating depends on average conductor temperature and convection and radiation depends on conductors’ surface temperature. Change (decrease) of tensile strength is in first approximation dependent on temperature of strands in the middle of conductor. Article shows how individual influencing factors act on conductor by heating or cooling it in steady operation.

MARUŠA, R., VORŠIČ, J., PIHLER, J., KOBAL, I., MARUŠA, L.
SELECTION OF A SUITABLE CONDUCTOR FOR GROUNDING THE CABLE SHIELD TO THE TRANSMISSION LINE TOWER
KOMUNALNA ENERGETIKA / POWER ENGINERING, 16
This paper describes which factors to consider when faced with choosing conductor for grounding of surge arresters and high-voltage cables on powerline construction, where transition between powerline construction and powerline cable takes place. For proper grounding of surge arrester and shielded cable, the grounding cables have to be designed to ensure efficient high frequency current flow to the ground that can reach up to 10 kA. During our research and measurements we have chosen such a conductor that at the same time ensures recommended parameters and is not of any particular value to vandalism.

VORŠIČ, Ž., PIHLER, J., MARUŠA, R.
HEATING OF CONDUCTORS IN STEADY STATE II
KOMUNALNA ENERGETIKA / POWER ENGINERING, 26
Factors such as voltage drop, power losses, stability, protection etc are important when selecting conductors cross-section in distribution and transmission networks. Important factor is also the rise of the temperature over the surrounding temperature: it is necessary to know the maximum continuous conductor current since it determines the maximum permissible temperature of conductor. The temperature of the conductor affects the conductor sag between the columns and determines the change in tensile strength due to warming. For short connection lines conductor temperature in emergency conditions is relevant for selection of the conductors cross-section.

  HOME MEETING SCHEDULE CONTENT PRESENTATION ARCHIVE E-REGISTRATION