Switch assembly for use in a power transmission system

A technology for switching components and frequencies, applied in the field of power systems, can solve problems such as exposure of solid-state semiconductor devices
CN106489231AActive Publication Date: 2017-03-08HITACHI ENERGY SWITZERLAND AG
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Patent Information

Authority / Receiving Office
CN Ā· China
Patent Type
Applications(China)
Current Assignee / Owner
HITACHI ENERGY SWITZERLAND AG
Publication Date
2017-03-08

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Abstract

A switch assembly (100) is disclosed for use in a circuit (101) configured to carry a current between a first electrical conductor (102) and a second electrical conductor (103). The switch assembly comprises at least a first current path (104) and a second current path (105) each of which includes an electrical contact (106, 107) which can be selectively connected to or disconnected from the second electrical conductor (103). At least one of the first current path (104) and the second current path (105) is configured such that it has a frequency-dependent reactance or impedance so as to force or cause current with a frequency which complies with a selected frequency criterion and which flows between the first electrical conductor (102) and the second electrical conductor (103) to flow, at least to a greater extent, via a selected one of the first current path (104) and the second current path (105).
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Description

technical field

[0001] The present invention generally relates to the field of power systems such as power distribution or transmission systems, for example high voltage direct current (HVDC) power transmission systems. In particular, the present invention relates to a switch assembly for use in an electrical circuit between a first electrical conductor and a second electrical conductor, the electrical circuit being configured to carry electrical current between the first electrical conductor and the second electrical conductor. Background technique

[0002] Power systems such as power distribution or transmission systems are used to supply, transmit and use electricity. High voltage direct current (HVDC) power transmission is becoming increasingly important due to the increased demands on power transmission and distribution systems for power supply or delivery and interconnection. A power system, such as a power distribution or transmission system, typically includes a pro...

Claims

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