Investigation Of The Electrical Strength Of Acontact Gap Of The High Voltage Live Tank Circuitbreaker 126 KV Class Using An Intelligentcontrolled Switching System
Author(s)
D. Chernoskutov, D. Chechushkov & P. Tukanov
Abstract
Investigation of the electrical strength of a
contact gap of the high voltage live tank circuit
breaker 126 kV class using an intelligent
controlled switching system
D. Chernoskutov, D. Chechushkov & P. Tukanov
Department of High Voltage Engineering, Ural Federal University
named after the first President of Russia B.N. Yeltsin, Russia
Abstract
Uncontrolled switching of reactive elements of power networks may create
electrical transients which cause equipment damage and system disturbances.
The high frequency, high current transients, associated with uncontrolled
energisation of capacitors can inductively couple voltage transients into control
equipment and protective relays via the switchyard cabling. These transients may
cause misoperation or failure of the control equipment. Controlling the point in
the electrical cycle at which switching takes place is a possible method for
minimising these negative effects. Controlled switching requires knowledge of
electrical strength of contact gap. This paper is associated with investigating the
electrical strength of a contact gap of a high voltage SF6 circuit breaker 126 kV
voltage class with sulfur hexafluoride gas – SF6 for development of the smartdesigned
controlled switching system via investigation of the rate of decrease of
dielectric strength. In this paper, a new approach to solve the problem of
controlled switching is proposed.
Keywords: SF6 gas-insulated circuit breaker, electric arc, zero current, burning
arc, shunt reactor, capacitor bank, rate of decrease of dielectric strength.
Keywords
SF6 gas-insulated circuit breaker, electric arc, zero current, burningarc, shunt reactor, capacitor bank, rate of decrease of dielectric strength.
Related Book
Other papers in this volume
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