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Contact Arm for Single Post Disconnector and Its Application

A technology of isolating switch and contact arm, applied in the field of contact arm, can solve the problems of limited disconnection and connection, impossibility, high cost, etc., and achieve the effect of high contact reliability and good current flow

Active Publication Date: 2020-10-30
SIEMENS ENERGY GLOBAL GMBH CO & KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Thus, the reliability of single-post disconnectors is limited, and high electrical losses can lead to high costs
Safe, controlled disconnection and connection may be limited or not feasible

Method used

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  • Contact Arm for Single Post Disconnector and Its Application
  • Contact Arm for Single Post Disconnector and Its Application
  • Contact Arm for Single Post Disconnector and Its Application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035] exist figure 1 A single-column switch disconnector 1 with fixed contacts 19 and four contact arms 2 according to the invention is schematically shown in an oblique view. The shown single-column disconnector 1 is designed as a pantograph disconnector or clamp disconnector. The single-column switch disconnector 1 is connected to one of the mains networks and can be associated with a high-voltage power switch, for example. The grid usually has 3 phases, each phase being connected by means of a high-voltage power switch.

[0036] The high-voltage power switch, which is not shown in the drawing for the sake of simplicity, switches the current flow or the high voltage on or off in a controlled manner as required, ie connects or breaks the current path. The contacts for making and breaking (or switching) are housed in the high voltage power switch, so their switching state is not visible from the outside. In order to achieve safe operation with the disconnected current pat...

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PUM

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Abstract

The invention relates to a contact arm (2) for a single-column isolating switch (1) and its use, said contact arm having at least one profile body (5) and at least one contact element (6). The at least one profile body (5) is designed as a rod and the at least one contact element (6) is designed as a strip with a T-shaped profile. The method of applying the contact arm (2) includes, in a state where the current path of the single-column isolating switch (1) is connected, the T-shaped contact element (6) of the movable contact arm (2) is fixed on the contact arm ( The profile body (5) of 2) is in electrical and mechanical contact with a fixed contact (19), in particular a fixed contact (19) in the form of a round bar.

Description

technical field [0001] The invention relates to a contact arm for a single-pillar switch disconnector, which has at least one profile body and at least one contact element, and its use. The at least one profile body is configured as a rod and the at least one contact element is configured as a strip. Background technique [0002] Single-post disconnectors are used for visually breaking current paths in the high-voltage range, ie in particular in the voltage range up to 1200 kV. A typical construction of a single post disconnect switch includes at least one contact having movable and fixed contact members. The fixed contact piece, that is to say the fixed contact, is, for example, a spatially fixed cylindrical metal tube. The contacts are made of a material that conducts electricity well, such as copper, and / or aluminum. [0003] The movable contact piece is designed, for example, in the form of a contact arm. The contact arm is swiveled towards or away from the fixed con...

Claims

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Application Information

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IPC IPC(8): H01H31/36
CPCH01H31/36
Inventor M.赫尼基M.罗曼B.拉思D.施拉德
Owner SIEMENS ENERGY GLOBAL GMBH CO & KG
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