Rapid test clamp for compensation capacitor

Abstract

The utility model provides a compensation capacitor rapid test clamp comprising a holding rod, a voltage measuring assembly and a current measuring assembly, and the voltage measuring assembly and the current measuring assembly are sequentially arranged on one side of the holding rod from top to bottom. The current measuring assembly comprises a bottom plate, a first electric telescopic rod, a handle and U-shaped calipers, the bottom plate is rotationally arranged on one side of the holding rod, one end of the first electric telescopic rod is rotationally connected with the bottom plate through a first mounting plate, the U-shaped calipers are arranged at the other end of the first electric telescopic rod, and the handle is rotationally arranged on one side of the first mounting plate. And one end of the handle penetrates through the first mounting plate and is connected with the first electric telescopic rod. The voltage testing assembly can adapt to tracks with different widths, the current testing assembly can clamp a capacitor lead more quickly and easily, and the testing clamp does not need to bend down, so that the working efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of capacitance testing, and particularly relates to a quick test fixture for compensating capacitors. Background Art

[0002] Capacitance compensation is reactive power compensation or power factor compensation. When electrical equipment in a power system is in use, reactive power is generated, and it is usually inductive, which reduces the utilization efficiency of the power supply capacity. This can be improved by appropriately increasing the capacitance in the system. Power capacitor compensation is also called power factor compensation (a combination of voltage compensation, current compensation, and phase compensation).

[0003] The measurement of the compensating capacitor by the tested track circuit signal testing equipment is the on-line voltage and current method. The two ends of the capacitor are connected to the rail, and the capacitor is fixed between the two rails. The detection method is to measure the voltage at both ends of the capacitor (rail) and the current flowing through the capacitor with a detection instrument, and then calculate the complex impedance of the capacitor to obtain the capacitance value.

[0004] However, in the prior art, the method of measuring voltage is to adsorb on the rail with a magnet, and the adsorption is not firm. The method of measuring current is to clamp on the capacitor lead with a clamp. The clamping is difficult, and the quantity is large and the intensity is high. It is necessary to bend down frequently for operation, and the efficiency is low. Content of the Utility Model

[0005] In view of this, the utility model aims to provide a quick test fixture for compensating capacitors to solve the problems of insecure magnet adsorption, difficult clamp clamping, frequent bending down for operation, and reduced work efficiency.

[0006] To achieve the above object, the technical solution of the utility model is realized as follows:

[0007] The quick test fixture for compensating capacitors includes a grip rod, a voltage measurement component, and a current measurement component. The voltage measurement component and the current measurement component are sequentially arranged on one side of the grip rod from top to bottom;

[0008] The current measuring component includes a bottom plate, a first electric telescopic rod, a handle, and a U-shaped caliper. The bottom plate is rotatably arranged on one side of the holding rod. One end of the first electric telescopic rod is rotatably connected to the bottom plate through a first mounting plate. The other end of the first electric telescopic rod is provided with a U-shaped caliper. The handle is rotatably arranged on one side of the first mounting plate, and one end of the handle penetrates through the first mounting plate and is connected to the first electric telescopic rod. The rotation connection between the bottom plate and the holding rod enables the first electric telescopic rod to move along the direction of the capacitor lead, realizing the movement of the X-axis. The rotation connection between the first electric telescopic rod and the first mounting plate enables the first electric telescopic rod to move along the direction perpendicular to the capacitor lead, realizing the movement of the Y-axis. The telescopic movement of the first electric telescopic rod can realize the movement of the Z-axis, so that the U-shaped caliper can be easily aligned with the capacitor lead, achieving the purpose of quickly measuring the current; the first electric telescopic rod is rotated by rotating the handle.

[0009] Further, one side thickness of the U-shaped caliper is greater than the other side thickness, and a slope is provided at the end of the thinner side. The thinner side of the U-shaped caliper is provided with a slope at the end, which is used to make it easier for the U-shaped caliper to be inserted between the capacitor lead and the sleeper, so as to be clamped to the capacitor lead.

[0010] Further, the voltage measuring component includes a first detection rod, a second detection rod, a probe, and a second electric telescopic rod. The first detection rod and the second detection rod are rotatably arranged on one side of the holding rod through a rotating shaft. Probes are provided at the ends of the first detection rod and the second detection rod away from the holding rod. The second electric telescopic rod is arranged at the ends of the first detection rod and the second detection rod away from the probe.

[0011] Further, one end of the second electric telescopic rod is rotatably connected to the first detection rod through a second mounting plate, and the other end of the second electric telescopic rod is rotatably connected to the second detection rod through a third mounting plate. A second electric telescopic rod is provided between the first detection rod and the second detection rod. By controlling the length of the second electric telescopic rod, the distance between the two probes can be controlled, so as to adapt to different widths of the track.

[0012] Further, a detection instrument and a control panel are provided at the end of the holding rod away from the voltage measuring component and the current measuring component. The control panel is located below the detection instrument. The detection instrument is electrically connected to the two probes and the U-shaped caliper. The control panel is electrically connected to the first electric telescopic rod and the second electric telescopic rod. The lengths of the first electric telescopic rod and the second electric telescopic rod are controlled by the buttons on the control panel.

[0013] Preferably, the detection instrument is a compensating capacitor on-line tester, and the model is HFD-BD-62.

[0014] Compared with the prior art, the compensating capacitor quick test fixture of the present utility model has the following advantages:

[0015] (1) The current measuring component of the present utility model enables the U-shaped caliper to achieve multi-angle adjustment in the X-axis, Y-axis, and Z-axis directions, making it easier to align with the capacitor leads, allowing for rapid measurement, and the structure of the U-shaped caliper is easier to insert between the capacitor leads and the sleeper.

[0016] (2) The voltage measuring component of the present utility model can adjust the distance between the two probes, thus being applicable to tracks of different widths. Description of the Drawings

[0017] The drawings forming a part of the present utility model are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation of the present utility model. In the drawings:

[0018] Figure 1 Schematic diagram of the rapid test fixture for compensating capacitors according to the embodiment of the present utility model applied to a track;

[0019] Figure 2 Front view schematic diagram of the rapid test fixture for compensating capacitors according to the embodiment of the present utility model;

[0020] Figure 3 Left side schematic diagram of the rapid test fixture for compensating capacitors according to the embodiment of the present utility model.

[0021] Description of the reference numerals:

[0022] 1, grip rod; 2, sleeper; 3, rail; 4, capacitor; 5, capacitor lead; 6, spike; 7, ferrule; 8, base plate; 9, first electric telescopic rod; 10, handle; 11, U-shaped caliper; 12, first mounting plate; 13, ramp; 14, first detection rod; 15, second detection rod; 16, probe; 17, second electric telescopic rod; 18, rotating shaft; 19, second mounting plate; 20, third mounting plate; 21, detection instrument; 22, control panel. Detailed Embodiment

[0023] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other.

[0024] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, terms such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.

[0025] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", "coupled" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific circumstances.

[0026] The present utility model will be described in detail below with reference to the drawings and in conjunction with embodiments.

[0027] As Figures 1 to 3 shown, a compensation capacitor quick test fixture includes a grip rod 1, a voltage measurement component, and a current measurement component. The voltage measurement component and the current measurement component are sequentially arranged on one side of the grip rod 1 from top to bottom;

[0028] The current measuring component includes a bottom plate 8, a first electric telescopic rod 9, a handle 10, and a U-shaped caliper 11. The bottom plate 8 is rotatably arranged on one side of the grip rod 1. One end of the first electric telescopic rod 9 is rotatably connected to the bottom plate 8 through a first mounting plate 12. The other end of the first electric telescopic rod 9 is provided with a U-shaped caliper 11. The handle 10 is rotatably arranged on one side of the first mounting plate 12, and one end of the handle 10 penetrates through the first mounting plate 12 and is connected to the first electric telescopic rod 9. The rotation connection between the bottom plate 8 and the grip rod 1 enables the first electric telescopic rod 9 to move along the direction of the capacitor lead 5, realizing the movement of the X-axis. The rotation connection between the first electric telescopic rod 9 and the first mounting plate 12 enables the first electric telescopic rod 9 to move along the direction perpendicular to the capacitor lead 5, realizing the movement of the Y-axis. The telescopic movement of the first electric telescopic rod 9 can realize the movement of the Z-axis, so that the U-shaped caliper 11 can be easily aligned with the capacitor lead 5, achieving the purpose of quickly measuring the current. The first electric telescopic rod 9 is rotated by rotating the handle 10.

[0029] One side of the U-shaped caliper 11 has a greater thickness than the other side, and a slope 13 is provided at the end of the thinner side. The U-shaped caliper 11 is provided with a thinner side, and a slope 13 is provided at the end, which is used to make it easier for the U-shaped caliper 11 to be inserted between the capacitor lead 5 and the sleeper 2, so as to be clamped onto the capacitor lead 5.

[0030] The voltage measuring component includes a first detection rod 14, a second detection rod 15, a probe 16, and a second electric telescopic rod 17. The first detection rod 14 and the second detection rod 15 are rotatably arranged on one side of the grip rod 1 through a rotating shaft 18. Probes 16 are provided at the ends of the first detection rod 14 and the second detection rod 15 away from the grip rod 1. The second electric telescopic rod 17 is arranged at the ends of the first detection rod 14 and the second detection rod 15 away from the probes 16.

[0031] One end of the second electric telescopic rod 17 is rotatably connected to the first detection rod 14 through a second mounting plate 19, and the other end of the second electric telescopic rod 17 is rotatably connected to the second detection rod 15 through a third mounting plate 20. A second electric telescopic rod 17 is provided between the first detection rod 14 and the second detection rod 15. By controlling the length of the second electric telescopic rod 17, the distance between the two probes 16 can be controlled, so as to adapt to tracks of different widths.

[0032] At the end of the grip rod 1 away from the voltage measuring component and the current measuring component, a detection instrument 21 and a control panel 22 are provided. The control panel 22 is located below the detection instrument 21. The detection instrument 21 is electrically connected to the two probes 16 and the U-shaped caliper 11. The control panel 22 is electrically connected to the first electric telescopic rod 9 and the second electric telescopic rod 17. The lengths of the first electric telescopic rod 9 and the second electric telescopic rod 17 are controlled through the buttons on the control panel 22.

[0033] Preferably, the detection instrument is an on-line compensation capacitor tester with the model number of HFD-BD-62.

[0034] The compensation capacitor quick test fixture is applied on the track. The track includes a sleeper 2, a rail 3, and a capacitor assembly. Two rails 3 are arranged on both sides of the top of the sleeper 2. The capacitor assembly is arranged on one side of the sleeper 2, and both ends of the capacitor assembly are connected to the two rails 3. The capacitor assembly includes a capacitor 4, capacitor leads 5, and plug pins 6. The capacitor 4 is arranged in the middle of one side of the sleeper 2 through a ferrule 7. Capacitor leads 5 are arranged at both ends of the capacitor 4. Plug pins 6 are arranged at the ends of the capacitor leads 5 far away from the capacitor 4. The capacitor leads 5 extend from the bottom of the rail 3 to the sides where the two rails 3 are away from each other and are fixed on the rail 3 by the plug pins 6. One end of the plug pin 6 is connected to the capacitor lead 5, and the other end of the plug pin 6 is driven into the rail 3, and the head of the plug pin 6 exposes 1-4 mm inside the rail 3.

[0035] In a specific implementation, according to the distance between the two rails 3, the second electric telescopic rod 17 is adjusted through the control panel 22 to make the two probes 16 contact the two rails 3, so as to measure the voltage; the first electric telescopic rod 9 is adjusted through the control panel 22, and at the same time, the handle 10 is rotated to make the U-shaped clamp 11 approach the capacitor lead 5. The thinner side of the capacitor lead 5 is inserted between the capacitor lead 5 and the sleeper 2 through the slope 13, so that the U-shaped clamp 11 clamps onto the capacitor lead 5, and then the current is measured; the detection instrument 21 calculates the capacitance complex impedance through the measured current and voltage and obtains the capacitance value.

[0036] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. Compensation capacitor quick test fixture, characterized by: It comprises a grip (1), a voltage measuring component, and a current measuring component, wherein the voltage measuring component and the current measuring component are arranged in sequence from top to bottom on one side of the grip (1); The current measuring component comprises a base plate (8), a first electric telescopic rod (9), a handle (10), and a U-shaped clamp (11); the base plate (8) is rotatably arranged on one side of the handle (1); one end of the first electric telescopic rod (9) is rotatably connected to the base plate (8) via a first mounting plate (12); the other end of the first electric telescopic rod (9) is provided with a U-shaped clamp (11); the handle (10) is rotatably arranged on one side of the first mounting plate (12), and one end of the handle (10) passes through the first mounting plate (12) and is connected to the first electric telescopic rod (9).

2. The compensation capacitor quick test fixture according to claim 1, characterized in that: The thickness of one side of the U-shaped caliper (11) is greater than that of the other side, and a slope (13) is provided at the end of the thinner side.

3. The compensation capacitor quick test fixture according to claim 1, characterized in that: The voltage measuring assembly comprises a first detection rod (14), a second detection rod (15), a probe (16), and a second electric telescopic rod (17); the first detection rod (14) and the second detection rod (15) are rotatably arranged on one side of a gripping rod (1) via a rotating shaft (18); the probe (16) is arranged at one end of the first detection rod (14) and the second detection rod (15) away from the gripping rod (1); and the second electric telescopic rod (17) is arranged at one end of the first detection rod (14) and the second detection rod (15) away from the probe (16).

4. The compensation capacitor quick test fixture according to claim 3, characterized in that: One end of the second electric telescopic rod (17) is rotatably connected to the first detection rod (14) via a second mounting plate (19), and the other end of the second electric telescopic rod (17) is rotatably connected to the second detection rod (15) via a third mounting plate (20).

5. The compensation capacitor quick test fixture according to claim 1, characterized in that: A detection instrument (21) and a control panel (22) are provided at one end of the gripping rod (1) away from the voltage measuring component and the current measuring component. The control panel (22) is located below the detection instrument (21). The detection instrument (21) is electrically connected to the two probes (16) and the U-shaped caliper (11). The control panel (22) is electrically connected to the first electric telescopic rod (9) and the second electric telescopic rod (17).

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