Self-adaptive copper-aluminum transition wire clamp device for 10kV line transformer

Abstract

The invention discloses a self-adaptive copper-aluminum transition wire clamp device for a 10kV line transformer. The device comprises a groove block and a wedge block. The groove block is a square structure. A cylindrical wire hole I is arranged in the middle of the groove block. A connected U-shaped groove hole is arranged in a side edge of the wire hole I. The wedge block is a square structure, a through hole is arranged in the middle of the wedge block, a cylinder gasket is cushioned in the through hole, a wire hole 2 is arranged in the middle of the cylinder gasket, a clamping base is fixedly connected to a side wall of the wedge block, a square hole is arranged in the clamping base, the clamping base stretches into the U-shaped groove hole and is connected with the groove block through a bolt, and the bolt is located in the square hole. A design of a wire clamp can adapt to any distribution transformer pile head. When the wire clamp generates heat due to overcurrent, because ofinconsistent thermal expansion coefficients of copper and aluminum, a transition part of the copper and aluminum is contacted more tightly, a contact resistance is reduced, the wire clamp is not easyto break, and a very good use effect is achieved.

Description

technical field [0001] The invention relates to a transformer clamp, in particular to an adaptive copper-aluminum transition clamp device for a 10kV line transformer, belonging to the technical field of transmission line equipment. Background technique [0002] At present, the low-voltage pile head of the 10kV line transformer adopts the copper-aluminum transition of the equipment line clamp. Because the thermal expansion coefficients of copper and aluminum are inconsistent, when the clamp is overcurrent and heated, the copper-aluminum transition is prone to breakage and burning, which will lead to phase loss. As a result, large-scale power outages in corresponding areas have been caused, causing unnecessary losses. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a self-adaptive copper-aluminum transition clamp device for 10kV line transformers. The thermal expansion coefficients of copper and aluminum are incon...

AI Technical Summary

Problems solved by technology

[0002] At present, the low-voltage pile head of the 10kV line transformer adopts the copper-aluminum transition of the equipment line clamp. Because the thermal expansion coefficients of copper and aluminum are inconsistent, when the clamp is overcurrent and heated, the copper-aluminum transition is prone to breakage and burning, which will lead to phase loss. As a result, large-scale power outages in corresponding areas have been caused, causing unnecessary losses.

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