Abstract
This paper describes the development of a novel high voltage (HV) switch for use in the damping oscillating voltage testing system. Specialized for up to 10 kV rated XLPE partial discharge test application, the switch consists of ten identical IGBT function units in series connection and has a maximum voltage of 20 kV. To solve the synchronization problem of the gate signal, we used the optical fiber to trigger the units. A multiple isolation power-supply system is used for the drive circuit. The operation of proposed switch is tested on an equivalent specimen, confirming the feasibility of this kind of application.
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