Wiring device for electrical test of power transformer

Abstract

The utility model relates to the technical field of power transformer application, in particular to a wiring device for an electrical test of a power transformer, and aims to solve the problems that in the electrical test process of the power transformer at present, operators are generally required to carry out wiring change on each phase winding on the power transformer, and the wiring change is inconvenient. Generally, the wiring process is time-consuming and labor-consuming, the safety is poor, and the overall efficiency of the electrical test of the power transformer is finally influenced. According to the device, symmetrical binding posts are fixed on a panel of an insulating box body in two rows and four columns, and the lower parts of the binding posts in the same column are connected through a connecting plate, so that before an electrical test is carried out, each phase winding outgoing line of a power transformer can be connected to the binding post on one side, and then each phase winding outgoing line of a test instrument is connected to the binding post on the other side; therefore, a wiring process can be directly changed on the binding post in an electrical test process, and a worker does not need to change a winding outgoing line on the power transformer, so that the test efficiency and the safety are greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of power transformer application, specifically relates to a power transformer electrical test wiring device. BACKGROUND

[0002] In the power system, when 110kV and above voltage grade power transformer carries out dielectric loss, DC resistance and ratio test, according to test project, need to frequently carry out wiring and rewire between transformer each phase and test instrument, the high voltage side of power transformer is higher from ground, need to use aerial work vehicle to assist wiring operation, this process not only is time-consuming, and greatly increases the operation risk, therefore, need to further optimize the wiring procedure in the electrical test process of power transformer, to avoid the problem of low electrical test efficiency and poor operation safety due to the frequent wiring and rewiring between transformer each phase and test instrument. SUMMARY

[0003] The utility model provides a kind of power transformer electrical test wiring device, to solve the problem in above-mentioned background.

[0004] To achieve the above object, the utility model adopts the following technical scheme:

[0005] A kind of power transformer electrical test wiring device, including insulating box body, first wiring post is worn in the top side of insulating box body, second wiring post is worn in the other side of the top of insulating box body and the first wiring post symmetry, and the end of the first wiring post and the second wiring post that same column stretch into the inside of insulating box body is all detachably connected with connecting plate.

[0006] Further, the end of the first wiring post and the second wiring post that stretch into the inside of insulating box body is all connected with screw rod, both ends of connecting plate are all set through screw rod, and connecting plate and screw rod are fixedly connected by fastening nut.

[0007] Further, the end of the first wiring post and the second wiring post that are located at the outside of insulating box body is all equipped with connector.

[0008] The utility model has the following beneficial effects:

[0009] The utility model provides a kind of electrical test wiring device of power transformer, it is mainly by insulation box, terminal post, connecting plate and fastening screw etc. BRIEF DESCRIPTION OF DRAWINGS

[0010] Fig. 1 It is overall structure schematic view of the utility model.

[0011] Fig. 2 It is overall structure overhead schematic view of the utility model.

[0012] Fig. 3 It is overall structure lateral section schematic view of the utility model.

[0013] Significance of the following figure mark is as follows:

[0014] 1, insulation box;2, first terminal post;3, connecting plate;4, fastening nut;5, screw;6, joint;7, second terminal post. DETAILED DESCRIPTION

[0015] The utility model is further described below in connection with the drawings and specific embodiment.

[0016] As Figs. 1-3 Shown, a kind of electrical test wiring device of power transformer, including insulation box 1, the top side of insulation box 1 is equipped with first terminal post 2, the top other side of insulation box 1 and the second terminal post 7 of the first terminal post 2 symmetry are equipped with, and the first terminal post 2 and the second terminal post 7 of same column are all detachably connected with connecting plate 3 in the one end of the inside of the insulation box 1 that they extend.

[0017] The one end of the first terminal post 2 and the second terminal post 7 that extend into the inside of the insulation box 1 is all connected with screw 5, the both ends of the connecting plate 3 are all passed through screw 5 setting, and connecting plate 3 and screw 5 are fixedly connected by fastening nut 4.

[0018] The one end of the first terminal post 2 and the second terminal post 7 located at the outside of the insulation box 1 is all equipped with joint 6.

[0019] The utility model discloses in the specific application, the insulating box 1 is the cuboid structure, will first wiring post 2 and second wiring post 7 be arranged in two rows four columns through the panel of insulating box 1, and will be connected with connecting plate 3 between the screw rod 5 of the bottom of first wiring post 2 and second wiring post 7 of same column, and with fastening nut 4 fixed, ensure that the resistance between first wiring post 2 and second wiring post 7 of same column is not greater than 0.5 milliohm, and in order to distinguish the phase sequence of power transformer, ensure that the color of the connector 6 of first wiring post 2 of same column is divided into four colors of yellow, green, red, black, and corresponds with the A, B, C, neutral point of power transformer one by one, thereby form the power transformer electrical test wiring device with connector 6, and then when carrying out power transformer dielectric loss, direct current resistance and ratio test etc. test, the first wiring post 2 of insulating box 1 is connected with the each phase lead-out wire of power transformer, and the second wiring post 7 of insulating box 1 is connected with the test instrument of different test items, thereby effectively realized without operating personnel on the wiring and the rewire of transformer each phase, and further greatly improved the electrical test overall efficiency and operation safety of power transformer, therefore, the device has good practicality.

Claims

1. An electrical test connection device for power transformers, characterized in that: Including the insulating box (1), the first terminal post (2) is worn to the top side of the insulating box (1), the second terminal post (7) is worn to the other side of the top of the insulating box (1) and the first terminal post (2) is symmetrical, and the same column first terminal post (2) and second terminal post (7) are inserted into the one end of the inside of the insulating box (1) and can be detachably connected with the connecting plate (3).

2. The electrical test connection device for power transformers according to claim 1, characterized in that: The one end of the first terminal post (2) and the second terminal post (7) inserted into the inside of the insulating box (1) is connected with the screw rod (5), both ends of the connecting plate (3) are provided through the screw rod (5), and the connecting plate (3) and the screw rod (5) are fixedly connected through the fastening nut (4).

3. The electrical test terminal set for power transformers according to claim 2, characterized in that: The one end of the first terminal post (2) and the second terminal post (7) located outside the insulating box (1) is provided with the connector (6).

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