Buckle type current transformer current transformation ratio testing device

Abstract

A buckle type current transformer current transformation ratio testing device comprises a front adjusting part, a testing conductor part and a movable adjusting part, the front adjusting part comprises a front adjusting bolt, an adjusting testing conductor and a front adjusting bolt, a fixing nut is additionally arranged on the front adjusting bolt, and the adjusting testing conductor is arranged on the front adjusting bolt. The adjusting test conductor is connected to the end of the front adjusting bolt, the test conductor part comprises a test conductor fixing bolt, a test cable and an adjusting test conductor, and the test conductor fixing bolt fixes the test cable through a test cable fixing nose. The movable adjusting part comprises a current transformation ratio testing device main rod, a movable adjusting rod and an adjustable fixing bolt. According to the utility model, the current transformation ratio testing device is used for testing the current transformation ratio of the current transformer in a narrow space without being limited, so that the speed of testing and replacing a testing clamp is greatly improved, the scratching and squeezing of hands in the narrow space are reduced, and the testing process becomes more convenient, faster and easier.

Description

TECHNICAL FIELD

[0001] The utility model relates to middle, high voltage electrical centrally installed cubicle test technical field especially, relate to a buckle type current transformer current ratio test device. BACKGROUND

[0002] In recent years, with the progress of society, the insulation level of electrical equipment is continuously strengthened, the space utilization rate is also continuously improved, the space utilization of the centrally installed cubicle of the middle and high voltage electrical appliance is continuously improved, and the electrical gap distance is continuously reduced, so that the operation space in the maintenance and test is also continuously reduced, in order to achieve the electrical safety requirement on safety, physical isolation is basically used to increase the electrical safety, and in addition to the main insulation, an insulation protection plate is also used as auxiliary insulation isolation, and the surface of the main conductive copper bar is basically treated in the following two ways, first, an insulation sheath is added, which is not as good as the bare conductor in heat dissipation performance, second, when there is a special requirement for good heat dissipation, the main conductive copper bar is brushed with heat dissipation insulation paint. SUMMARY

[0003] The utility model aims at solving the prior art's insufficient, and provides a buckle type current transformer current ratio test device.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0005] A buckle type current transformer current ratio test device, including pre-adjustment part, test conductor part and movable adjustment part, pre-adjustment part includes pre-adjustment bolt and adjustment test conductor, pre-adjustment bolt, a fixed nut is added on pre-adjustment bolt, and the end of pre-adjustment bolt is connected with adjustment test conductor, test conductor part includes test conductor fixed bolt, test cable and adjustment test conductor, test conductor fixed bolt is arranged on adjustment test conductor, test cable is fixed with test cable nose through test conductor fixed bolt, movable adjustment part includes current ratio test device main rod, movable adjustment rod and adjustable fixed bolt, current ratio test device main rod is fixed on pre-adjustment bolt through pre-adjustment bolt fixed nut, movable adjustment rod is sleeved on current ratio test device main rod, and the bottom end of movable adjustment rod is connected with adjustment rod fixed nut, and adjustable fixed bolt is screw connected on adjustment rod fixed nut.

[0006] The adjusting test conductor is isolated from the metal of the pre-adjusting bolt by an insulating spacer.

[0007] The end nut of the adjustable fixing bolt is connected with an adjustable fixing screw rod.

[0008] The material of the adjusting test conductor is a copper conductor or an aluminum conductor.

[0009] The current ratio test device has a unique connection mode, simple and inexpensive, safe and reliable structure, and is not limited to test the current ratio of the current transformer in a narrow space, greatly improves the speed of testing and replacing the test clamp, and the scratch and extrusion of the hand in the narrow space, makes the test process more convenient and fast, and also easier. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 It is a structural schematic view of the utility model;

[0011] Figure 2 It is a right view of the current ratio test device main rod, movable adjusting rod and adjustable fixing bolt connection structure of the utility model;

[0012] Figure 3 It is a schematic view of the utility model applied to a medium and high voltage cabinet of a shape conductive connecting body;

[0013] Figure 4 It is a schematic view of the utility model applied to another shape conductive connecting body of a medium and high voltage cabinet;

[0014] In the figure: 1-pre-adjusting bolt; 2-isolation insulating spacer; 3-adjusting test conductor; 4-test conductor fixing bolt; 5-test cable line fixing nose; 6-fixing nut; 7-test cable line; 8-current ratio test device main rod; 9-movable adjusting rod; 10-adjustable fixing bolt; 11-adjusting rod fixing nut; 12-pre-adjusting bolt fixing nut; 13-adjustable fixing screw rod; 14-conductive body one; 15-current transformer body conductive connecting body; 16-current ratio test device; 17-insulating baffle for physical isolation in the medium and high voltage cabinet; 18-conductive body two;

[0015] The embodiments of the utility model will be described in detail below with reference to the accompanying drawings. DETAILED DESCRIPTION

[0016] The utility model will be further described below in combination with the drawings and embodiments:

[0017] A buckle type current transformer current ratio test device, comprising a pre-adjustment part, a test conductor part and a movable adjustment part, the pre-adjustment part comprises a pre-adjustment bolt 1 and an adjustment test conductor 3, the pre-adjustment bolt 1 is provided with a fixed nut 6, and the adjustment test conductor 3 is connected to the end of the pre-adjustment bolt 1, the test conductor part comprises a test conductor fixed bolt 4, a test cable 7 and an adjustment test conductor, the adjustment test conductor 3 is provided with the test conductor fixed bolt 4, the test conductor fixed bolt 4 is fixed to the test cable 7 through the test cable fixed nose 5, the movable adjustment part comprises a current ratio test device main rod 8, a movable adjustment rod 9 and an adjustable fixed bolt 10, the current ratio test device main rod 8 is fixed on the pre-adjustment bolt 1 through the pre-adjustment bolt fixed nut 12, the movable adjustment rod 9 is slidably sleeved on the current ratio test device main rod 8, and the bottom end of the movable adjustment rod 9 is connected with an adjustment rod fixed nut 11; the adjustable fixed bolt 10 is threadedly connected to the adjustment rod fixed nut 11.

[0018] The adjustment test conductor 3 is provided with an isolation insulating pad 2 between the metal of the pre-adjustment bolt 1.

[0019] The end nut peripheral wall of the adjustable fixed bolt 10 is connected with an adjustable fixed screw rod 13.

[0020] The material of the adjustment test conductor 3 is a copper conductor or an aluminum conductor.

[0021] As shown in Figure 2 The measured CT, i.e. the current transformer, is an electrical equipment, and the shape thereof is basically fixed, so that the electrical connection port of the measured CT is also fixed, and the current transformer body conductor connection body 15 for connecting the electrical equipment in the cabinet body is made of different specifications and different shapes by utilizing the plasticity thereof for the optimization of space, as shown in Figure 2 As shown in Figure 3 As shown in

[0022] When the utility model is used, first, before the current transformer ratio detection of the medium, high and low voltage middle cabinet, it is necessary to ensure that the equipment itself is not powered, and then the isolation protection cover plate is opened, so as to facilitate the clamping of the ratio test device;

[0023] Then, the test cable 7 is fixed to the test copper conductor 3 of the front adjusting part of the test device, and the test cable 7 is led out to the outside of the cabinet, facilitating the next operation;

[0024] Then, the current ratio test device 16 fixed with the test cable is placed according to the placement method of the clamp of the utility model shown in the figure Figure 2 、 Figure 3 , and is preliminarily placed in position;

[0025] Then, the actual required position is adjusted by using the test conductor fixing bolt 4 according to the actual angle and position;

[0026] Then, the movable adjusting rod 9 of the current ratio test device of the tail fixing part of the utility model device is adjusted to a suitable position, and the adjustable fixing bolt 10 is used for clamping, so that the current ratio test device 16 is fixed firmly;

[0027] Finally, the current ratio of the current transformer is effectively increased by using the utility model device, and the current ratio test of the current transformer is completed.

[0028] The current ratio test device of the buckle type current transformer of the utility model is directly fixed on the current transformer conducting joint port by using the buckle type, can effectively prevent damage to the insulating sheath and the insulating paint, and is more simple and fast than the original small space and large clamp mode, effectively improves the work efficiency in the on-site test process, and thus better economic benefits are generated.

[0029] In the description of the utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0030] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0031] In the utility model, unless another explicit provision and limitation, the terms "mount", "link", "connect", "fix" and so on terms should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated; can be mechanical connection, also can be electric connection or each other can communicate; can be direct connection, also can indirectly connect through intermediate medium, can be two element internal communication or two element mutual action relation, unless another explicit limitation. For ordinary skilled person in the art, can understand the concrete meaning of above-mentioned terms in the utility model according to specific circumstances.

[0032] The utility model has been described above in conjunction with the drawings, obviously, the specific implementation of the utility model is not limited by the above-mentioned mode, as long as various improvements of the method concept and technical scheme of the utility model are adopted, or directly applied in other occasions without improvement, all are within the protection scope of the utility model.

Claims

1. A snap type current transformer current ratio test device, characterized by, The utility model relates to a current ratio test device, including pre-adjustment part, test conductor part and movable adjustment part, pre-adjustment part includes pre-adjustment bolt (1) and adjustment test conductor (3), pre-adjustment bolt (1), pre-adjustment bolt (1) is added with a fixed nut (6), adjustment test conductor (3) is connected at the end of pre-adjustment bolt (1), test conductor part includes test conductor fixed bolt (4), test cable (7), adjustment test conductor, adjustment test conductor (3) is provided with test conductor fixed bolt (4), test conductor fixed bolt (4) is fixed test cable (7) through test cable fixed nose (5), movable adjustment part includes current ratio test device main rod (8), movable adjustment rod (9) and adjustable fixed bolt (10), current ratio test device main rod (8) is fixed on pre-adjustment bolt (1) through pre-adjustment bolt fixed nut (12), movable adjustment rod (9) is slidably sleeved on current ratio test device main rod (8), the bottom end of movable adjustment rod (9) is connected adjustment rod fixed nut (11), adjustable fixed bolt (10) is screw connected on adjustment rod fixed nut (11).

2. The current ratio test device of claim 1, wherein, The adjustment test conductor (3) is provided with an isolation insulating gasket (2) between the pre-adjustment bolt (1).

3. The current ratio test device of claim 2, wherein the current transformer is a buckle type current transformer. The adjustable fixed bolt (10) is connected with an adjustable fixed screw (13) on the nut wall of the end of the adjustable fixed bolt (10).

4. The snap type current transformer current ratio test device according to claim 3, wherein, The material of the adjustment test conductor (3) is copper conductor or aluminum conductor.

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