Rack transformer for 10kV distribution network overhead line and installation method thereof

Abstract

The invention discloses a rack transformer for a 10kV distribution network overhead line and an installation method thereof. The rack transformer comprises a transformer, a first telegraph pole and asecond telegraph pole, the telegraph pole I and the telegraph pole II are connected through two first cross arm up and down; a transformer and a distribution box are respectively arranged on the firstcross arms; a second cross arm, a third cross arm and a fourth cross arm are arranged on the upper portion of the first telegraph pole, a fifth cross arm and a sixth cross arm are arranged on the upper portion of the second telegraph pole, the second cross arm, the third cross arm, the fourth cross arm, the fifth cross arm and the sixth cross arm are parallel to one another and are perpendicularto the first cross arms, a high-voltage inlet wire is connected to the second cross arm, a fuse is arranged on the third cross arm, and a lightning arrester is arranged on the fourth cross arm. The cross arm for installing the transformer and the cross arm for installing the high-voltage incoming line are arranged vertically, when the transformer is overhauled, no cross arm obstruction exists above the transformer, hoisting is convenient, the high-voltage inlet wire is arranged on one side of the uppermost portion of the telegraph pole, the low-voltage outlet wire is arranged on the other sideof the lower portion of the telegraph pole, the risk that personnel get an electric shock in the overhauling process of main and auxiliary pole low-voltage lines is effectively reduced, and a good effect is achieved.

Description

technical field [0001] The invention relates to a bench transformer, in particular to a bench transformer used for overhead lines of a 10kV distribution network and an installation method thereof, belonging to the technical field of power transmission line equipment. Background technique [0002] With the gradual development of science and technology, the distribution network has high requirements for safety and economy. Reasonable configuration and installation can enhance the safety performance of the power grid and improve the economic benefits of the power grid. At present, the distribution transformer bench has become an important part of the entire distribution network structure. In recent years, the standard bench transformer ( figure 1 ) has gradually covered the distribution network of various provinces and county-level units, and the actual operation and maintenance work of standard bench transformers by operators is also increasing. Through many investigations and...

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a bench transformer for 10kV distribution network overhead lines and its installation method. During the inspection and maintenance of the distribution transformer, after the distribution transformer is opened, the distance between the high-voltage insulated wire from the lower pile head of the order to the auxiliary pole and the installation position of the transformer meets the requirements of the safe distance for hoisting and is convenient for hoisting. The high-voltage incoming line is arranged at the top of the utility pole. side, while the low-voltage outgoing line is arranged on the other side under the utility pole, which effectively reduces the risk of electric shock for personnel during the maintenance of the low-voltage line of the main and auxiliary poles, and effectively solves the safety hazards of operators in the operation and maintenance of the distribution network standard bench substation. Hidden dangers and problems with a wide range of maintenance outages

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