A tension compensating washer and its tension automatic adjustment device for transformer bushing rod
A tension compensation and washer technology, applied in the direction of transformer/inductor coil/winding/connection, etc., can solve problems such as insufficient tension adjustment of tie rods, discharge failure of transformer bushings, etc.
Active Publication Date: 2021-08-20
STATE GRID HENAN ELECTRIC POWER ELECTRIC POWER SCI RES INST +1
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Problems solved by technology
[0005] The technical problem to be solved by the present invention is: in order to solve the problem of transformer bushing discharge failure caused by insufficient adjustment of pull rod tension under high load conditions in the prior art, provide a tension compensation washer and its Transformer bushing pull rod tension automatic adjustment device
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[0021] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.
[0022] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientation or positional relationship indicated by "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and Simplified descriptions do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and thus should not be construed as limiting the scope of protection of the present application. In addition, the terms "first", "second", etc. are used for descriptive purposes on...
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Abstract
The application relates to a tension compensation washer, comprising a sheet-shaped base (10) with a through hole (11) in the middle, the base has an inner section (12) and an outer section (13) distributed from the inside to the outside, the inner section and the outer section are connected by an inclined section (14), and the base body is configured such that when the base body exceeds a predetermined temperature, the inner section and the outer section respectively generate a force toward the outside of the base body in the normal direction of the base body . The beneficial effects of the present invention are: a tension compensating device is installed between the nut at the upper end of the pull rod and the fastening surface, and at different temperatures, different forces are applied to the pull rod through the nut, thereby maintaining the pulling force of the pull rod on the lower wiring device, Ensure the normal contact between the wiring device and the conductive tube; under different load conditions, the device that maintains the pulling force of the tie rod is conducive to reducing the occurrence of large-capacity and high-grade transformer bushing discharge faults.
Description
technical field [0001] The application relates to a tension compensation washer and a device for automatically adjusting the tension of a transformer bushing rod, belonging to the technical field of engineering devices. Background technique [0002] The transformer is the main equipment of the substation, and its function is to realize the voltage conversion of different levels. The bushing is the inlet and outlet device of the transformer. Its function is to form an insulating structure between the inlet and outlet leads and the casing, and to fix and support the leads. The existing transformer bushings are roughly divided into three types: cable-through type, guide rod type and tie rod type according to the different current-carrying methods. [0003] Among them, the tie rod type is to fix the upper part of the central copper conduit on the general cap on the upper part of the casing, and connect it to the upper lead through the terminal. There is a steel guide rod in th...
Claims
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IPC IPC(8): H01F27/29
Inventor 王朝华张劲光赵永峰郭磊王朝乐
Owner STATE GRID HENAN ELECTRIC POWER ELECTRIC POWER SCI RES INST