Reduction of Power Loss from Corona Phenomena in High Voltage Transmission Line 115 and 230 kV
Procedia Computer Science(2016)
Abstract
The Power Loss from Corona Phenomena in High Voltage Transmission Line 115 and 230 kV were studied the effects of various elements that affect the power loss from corona in high voltage transmission line between Khon Kaen and Nakhon Ratchasima and the method to reduce power loss due to corona. This paper clarifies Peek's and Peterson's formula by utilizing Matlab program with the effect from different variables including conductor spacing, conductor radius and a system voltage. The Peterson's formula was suitable for the two systems than that of Peek's formula under the condition of phase voltage to corona inception voltage ratio. In the 115 kV system uses 795 MCM ACSR conductor with 1.447 cm radius and the spacing was 320 cm could generate a less power loss, and the 230 kV system uses 1272 MCM ACSR conductor with 1.75 radius, the spacing was 500 cm could generate a less power loss. When simulated to solve the conductor radius and the spacing that would have the less power loss. In 115 kV system, the suitable was 1.36 cm radius and 266 cm spacing and in 230 kV system the suitable was 0.85 cm radius and 660 cm. It therefore could reduce power loss by selecting the conductor radius and the conductor space increasing or protecting the system from the lightning.
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Key words
Corona,Corona loss,High Voltage,Peek's formula,Peterson's formula,Transmission line
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