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US 12,699,152 B2Granted
Bushing and a method for monitoring of the bushing
AssigneeHSP Hochspannunsgeräte GmbH
InventorFabrizio Negri
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Abstract
A bushing and a method for monitoring the bushing. The bushing is a high-voltage DC bushing with a test tap. The high-voltage DC bushing arrangement includes a monitoring device configured to inject a voltage and/or current pulse signal via the test tap and to detect and process a corresponding response signal. There is also described a method for operating an HVDC bushing, an HVDC transformer, and a converter arrangement with the bushing.
Claims12
A high-voltage DC bushing arrangement, comprising:
- a high-voltage DC bushing with a test or voltage tap;
- a monitoring device configured to inject an electrical pulse signal, being at least one of a voltage pulse or a current pulse signal, via said tap and to detect and process a corresponding response signal;
- and
- said monitoring device having a pulse generator configured to generate said electrical pulse signal and an induction element connected in parallel with said pulse generator.
1 more element
A high-voltage DC bushing arrangement, comprising:
- a high-voltage DC bushing with a test or voltage tap;
- and
- a monitoring device configured to inject an electrical pulse signal, being at least one of a voltage pulse or a current pulse signal, via said tap and to detect and process a corresponding response signal;
- said monitoring device having a pulse generator configured to generate said electrical pulse signal and an induction element connected in parallel with said pulse generator;
- said inductance element having an induction value Lg chosen to render an impedance of a parallel circuit formed by said inductance element and a parallel capacitance of said bushing substantially maximal for a signal frequency of said electrical pulse signal.
2 more elements
Dependencies are inferred from the claim text.