A method for using a low-voltage test tool for capacitor and inductor panels

Abstract

The present invention discloses a method for using a low-voltage test tool for capacitor and inductor plates, and relates to the technical field of low-voltage testing of capacitor and inductor plates. The present invention includes a tool bearing shell, a voltage regulator, and a mode conversion device; the tool bearing shell is provided with an internal wiring terminal electrically connected to an external power cable; the internal wiring terminal is electrically connected to a start button, a voltage regulator, and a mode conversion device in sequence; the mode conversion device includes a conversion switch, a capacitor plate test circuit, and an inductor plate test circuit. The present invention electrically connects a start button, a voltage regulator, and a mode conversion circuit in sequence through external wiring terminals, thereby isolating the high-voltage part from the tester and ensuring safety in use; at the same time, by switching the capacitor plate test circuit or the inductor plate test circuit through the conversion switch, convenient switching between capacitor plate test and inductor plate test is achieved, and the operation is simple, reducing the error rate of manual operation.

Description

Technical Field

[0001] The invention belongs to the technical field of low-voltage testing of capacitor and inductor plates, and in particular relates to a method for using a low-voltage testing tool for capacitor and inductor plates. Background Art

[0002] At present, a long-term problem in the construction and operation of China's power grid is the insufficient reactive compensation capacity and unreasonable configuration, especially the insufficient adjustable reactive capacity and fewer fast-response reactive regulation equipment. In recent years, with the continuous increase of high-power nonlinear loads, the reactive impact and harmonic pollution of the power grid have been on the rise. The lack of reactive regulation means has caused the bus voltage to vary greatly with the change of operation mode. This has led to an increase in line loss in the power grid and a decrease in the voltage qualification rate. In addition, with the development of the power grid, the problem of system stability has become increasingly important. In addition, there is also a great demand for static reactive compensation technology in wind farms, metallurgy, electrified railways, coal and other industrial fields. Under the current circumstances, the static dynamic reactive compensation device is very effective in solving the reactive impact generated by various loads; it significantly improves the voltage fluctuation of the power grid and the power factor, and is a new energy-saving device with high technical content and significant economic benefits.

[0003] Capacitor and inductor plates are the most basic components of static VAR compensation equipment, and they are widely used in the construction of power grids, industries, and railways, which are closely related to people. The quality of capacitor and inductor plates is a key factor in the safe and reliable operation of some major equipment, and the detection of capacitor and inductor plates is the most important link. However, this work currently has problems such as unsafe electricity use, low work efficiency, and many human errors during the test process.

[0004] In order to solve the above problems, the present invention provides a method for using a low-voltage testing tool for capacitor and inductor panels. Summary of the invention

[0005] The purpose of the present invention is to provide a method for using a low-voltage test tool for capacitor and inductor plates to solve the technical problems raised in the background technology.

[0006] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0007] The present invention is a low-voltage test tool for capacitor and inductor plates, comprising:

[0008] The tooling housing, the voltage regulator and the mode conversion device; the tooling housing is provided with an internal wiring terminal electrically connected to an external power cable; the internal wiring terminal is electrically connected to a start button, a voltage regulator and a mode conversion device in sequence;

[0009] The mode conversion device comprises a conversion switch, a capacitor plate test loop and an inductor plate test loop; the input end of the conversion switch is electrically connected to the output end of the voltage regulator, and the output end of the conversion switch is electrically connected to the inductor plate test loop through a first switch or is electrically connected to the capacitor plate test loop through a second switch;

[0010] The inductor board test circuit includes a power resistor and an inductor board to be tested; one end of the power resistor is electrically connected to the first switch, and the other end is electrically connected to one end of the inductor board to be tested; the other end of the inductor board to be tested is grounded; a current transformer is installed on the line between the first switch and the power resistor;

[0011] The capacitor plate test circuit includes a rectifier, a capacitor plate to be tested and a discharge circuit; the input end of the rectifier is electrically connected to the second switch; the output end of the rectifier is electrically connected to the capacitor plate to be tested; the capacitor plate to be tested is connected in parallel with the discharge circuit; the discharge circuit includes a discharge switch and a discharge resistor connected in series.

[0012] As a preferred technical solution, it also includes a monitoring human-machine alarm system; the monitoring human-machine alarm system includes a smart meter and a measurement and control touch screen; the smart meter is electrically connected to the secondary side of the current transformer or the voltage side of the inductor plate to be measured or the voltage side of the capacitor plate to be measured; the smart meter is electrically connected to the processor of the measurement and control touch screen.

[0013] As a preferred technical solution, the processor of the measurement and control touch screen is connected to an expansion interface module; the expansion interface module is respectively connected to a printer and other monitoring equipment.

[0014] As a preferred technical solution, the processor of the measurement and control touch screen is also connected to a trip contact output; the trip contact output is electrically connected to a trip circuit start button.

[0015] A method for using a capacitor and inductor plate low-voltage test tool, including a capacitor plate low-voltage test and an inductor plate low-voltage test;

[0016] The capacitor board low voltage test process includes the following:

[0017] A00: Connect the electrical quantity to be tested of the capacitor plate to the smart meter and the measurement and control touch screen;

[0018] A01: Press the start button to connect the main circuit, and close the second switch to connect the capacitor board test circuit;

[0019] A02: Adjust the voltage regulator to achieve the required electrical quantity;

[0020] A03: Click the report generation button on the measurement and control touch screen to generate the final report;

[0021] The low voltage test process of the inductor board is as follows:

[0022] B00: Connect the electrical quantity to be tested of the capacitor board to the smart meter and the measurement and control touch screen;

[0023] B01: Use the test leads of the smart meter to test the DC resistance to be tested;

[0024] B02: Press the start button to connect the main circuit, and close the first switch to connect the inductor board test circuit;

[0025] B03: Adjust the voltage regulator to achieve the required electrical quantity;

[0026] B04: Click the report generation button on the measurement and control touch screen to generate the final report.

[0027] As a preferred technical solution, A00 includes the following process: connecting the main circuit to the upper port of the circuit breaker by converting the normally closed contact of the switch, and connecting the lower port of the circuit breaker to the second switch.

[0028] As a preferred technical solution, B00 includes the following process: connecting the main circuit to the upper port of the circuit breaker by converting the normally closed contact of the switch, and connecting the lower port of the circuit breaker to the first switch.

[0029] One aspect of the present invention has the following beneficial effects:

[0030] 1. The present invention electrically connects the start button, the voltage regulator and the mode conversion device in sequence through the external wiring terminals, so as to isolate the high voltage part from the tester and ensure the safety of use; at the same time, by switching the capacitor plate test circuit or the inductor plate test circuit through the conversion switch, the convenient switching of the capacitor plate test and the inductor plate test is realized, and the operation is simple, which reduces the error rate of manual operation.

[0031] 2. The smart meter of the present invention is connected to the processor of the measurement and control touch screen by electrical signals, and the detection data can be conveniently displayed and viewed through the measurement and control touch screen; the processor of the measurement and control touch screen is connected to the expansion interface module, which is convenient for expanding external smart devices and has rich expansion functions; the expansion interface module is respectively connected to the printer and other monitoring equipment; it is convenient for observing and comparing the test results.

[0032] 3. The processor of the measurement and control touch screen of the present invention is also connected to the trip contact output; the trip contact output is electrically connected to the trip circuit start button; it is convenient to transmit the abnormal signal to the trip circuit after detecting abnormal data, so as to directly trip the power supply when the operation is abnormal.

[0033] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0035] Figure 1 A circuit diagram of a start button, a voltage regulator, a transfer switch and an inductance board test circuit in the present invention;

[0036] Figure 2 A circuit diagram of a start button, a voltage regulator, a conversion switch and a capacitor plate test circuit in the present invention;

[0037] Figure 3 It is a flow chart of the low voltage test process of the capacitor plate in the present invention;

[0038] Figure 4 It is a flow chart of the low voltage test process of the inductor plate in the present invention;

[0039] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0040] 1-start button, 2-voltage regulator, 3-conversion switch, 41-first switch, 42-power resistor, 43-inductor plate to be tested, 44-current transformer, 51-second switch, 52-rectifier, 53-capacitor plate to be tested, 541-discharge switch, 542-discharge resistor, 6-smart meter, 7-measurement and control touch screen. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] In the description of the present invention, it should be understood that the terms "opening", "upper", "middle", "length", "inside" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0043] See also Figure 1-2As shown, the present invention is a low-voltage test tool for capacitor and inductor plates, including: a tool bearing shell, a voltage regulator 2 and a mode conversion device; specifically, the tool bearing shell is used to install the voltage regulator 2, the mode conversion device and the equipment described below. The tool bearing shell is composed of a layered metal structure box, and a reliable grounding point is designed on the side of the box. A walking wheel with a braking function is installed at the bottom to achieve the function that the tool can be moved and can be reliably fixed when it needs to be fixed. Bolts with fine-tuning lifting function are installed at the connection between the walking wheel and the tool shell, which can achieve fine-tuning when operating on uneven roads;

[0044] The tooling bearing shell is provided with an internal wiring terminal electrically connected to the external power cable, and the internal wiring terminal is used to connect the external 380V power cable; the internal wiring terminal is electrically connected to the start button 1, the voltage regulator 2 and the mode conversion device in sequence; specifically, the voltage regulator 2 can realize the functions of isolation and voltage regulation from the mains, ensuring that the high-voltage part is isolated from the tester and the operation is safe; the mode conversion device includes a conversion switch 3, a capacitor plate test circuit and an inductor plate test circuit; the input end of the conversion switch 3 is electrically connected to the output end of the voltage regulator 2, and the output end of the conversion switch 3 is electrically connected to the inductor plate test circuit through the first switch 41 or is electrically connected to the capacitor plate test circuit through the second switch 51;

[0045] The inductor board test circuit includes a power resistor 42 and an inductor board to be tested 43; one end of the power resistor 42 is electrically connected to the first switch 41, and the other end is electrically connected to one end of the inductor board to be tested 43; the other end of the inductor board to be tested 43 is grounded; a current transformer 44 is installed on the line between the first switch 41 and the power resistor 42;

[0046] The capacitor plate test circuit includes a rectifier 52, a capacitor plate to be tested 53 and a discharge circuit; the input end of the rectifier 52 is electrically connected to the second switch 51; the output end of the rectifier 52 is electrically connected to the capacitor plate to be tested 53; the capacitor plate to be tested 53 is connected in parallel with the discharge circuit; the discharge circuit includes a discharge switch 541 and a discharge resistor 542 connected in series, which are used to charge and discharge the capacitor plate to be tested 53.

[0047] In addition, it also includes a human-machine monitoring alarm system; the human-machine monitoring alarm system includes a smart meter 6 and a measurement and control touch screen 7; the smart meter 6 is electrically connected to the secondary side of the current transformer 44 or the voltage side of the inductor plate 43 to be tested or the voltage side of the capacitor plate 53 to be tested, for collecting data; the smart meter 6 is electrically connected to the processor of the measurement and control touch screen 7 by signal, and the detection data is displayed through the measurement and control touch screen 7.

[0048] In addition, the processor of the measurement and control touch screen 7 is connected to an expansion interface module to facilitate the expansion of external intelligent devices; the expansion interface module is respectively connected to a printer and other monitoring equipment to facilitate the observation and comparison of test results.

[0049] In addition, the processor of the measurement and control touch screen 7 is also connected to the trip contact output; the trip contact output is electrically connected to the trip circuit start button; it is convenient to transmit an abnormal signal to the trip circuit after detecting abnormal data, so as to directly trip the power supply when working abnormally.

[0050] See also Figure 3-4 As shown, a method for using a capacitor and inductor plate low-voltage test tool includes a capacitor plate low-voltage test and an inductor plate low-voltage test;

[0051] The capacitor board low voltage test process includes the following:

[0052] A00: Connect the electrical quantity to be tested of the capacitor plate 53 to the smart meter 6 and the measurement and control touch screen 7; In addition, the following process is included before A00: connect the main circuit to the upper port of the circuit breaker through the normally closed contact of the conversion switch 3, and connect the lower port of the circuit breaker to the second switch 51;

[0053] A01: Press the start button 1 to connect the main circuit, and close the second switch 51 to connect the capacitor plate test circuit;

[0054] A02: Adjust voltage regulator 2 to reach the required electrical quantity and observe the test results;

[0055] A03: Click the report generation button on the measurement and control touch screen 7 to generate the final report. In addition, you can click the test report to print the final test report or copy the test report through the USB interface;

[0056] After that, test the next capacitor plate or disconnect the power supply;

[0057] The low voltage test process of the inductor board is as follows:

[0058] B00: Connect the electrical quantity to be tested of the capacitor plate 53 to the smart meter 6 and the measurement and control touch screen 7; In addition, the process before B00 includes the following: connect the main circuit to the upper port of the circuit breaker through the normally closed contact of the conversion switch 3, and connect the lower port of the circuit breaker to the first switch 41;

[0059] B01: Use the test lead of smart meter 6 to test the DC resistance to be tested;

[0060] B02: Press the start button 1 to connect the main circuit, and close the first switch 41 to connect the inductor board test circuit;

[0061] B03: Adjust voltage regulator 2 to reach the required electrical quantity and observe the test results;

[0062] B04: Click the report generation button on the measurement and control touch screen 7 to generate the final report. In addition, you can click the test report to print the final test report or copy the test report through the USB interface;

[0063] After that, test the next inductor board or disconnect the power supply.

[0064] The present invention sequentially electrically connects a start button, a voltage regulator and a mode conversion device through the wiring terminals, thereby isolating the high-voltage part from the tester and ensuring safe use; at the same time, by switching the capacitor plate test circuit or the inductor plate test circuit through the conversion switch, convenient switching between the capacitor plate test and the inductor plate test is realized, and the operation is simple, reducing the error rate of manual operation; in addition, the smart meter is connected to the processor of the measurement and control touch screen by electrical signals, and the detection data can be conveniently displayed and viewed through the measurement and control touch screen; the processor of the measurement and control touch screen is connected to the expansion interface module, which is convenient for expanding external intelligent devices and has rich expansion functions; the expansion interface module is respectively connected to the printer and other monitoring equipment, which is convenient for observing and comparing the test results; at the same time, the processor of the measurement and control touch screen is also connected to the trip contact output; the trip contact output is electrically connected to the trip circuit start button, which is convenient for transmitting the abnormal signal to the trip circuit after detecting abnormal data, so as to directly trip the power supply when the work is abnormal.

[0065] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0066] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A method for using a low-voltage test tool for capacitor and inductor panels, characterized in that: Including low voltage test of capacitor board and low voltage test of inductor board; The capacitor and inductor plate low-voltage test tool comprises: a tool bearing shell, a voltage regulator (2) and a mode conversion device; the tool bearing shell is provided with an internal wiring terminal electrically connected to an external power cable; the internal wiring terminal is electrically connected to a start button (1), a voltage regulator (2) and a mode conversion device in sequence; the mode conversion device comprises a conversion switch (3), a capacitor plate test circuit and an inductor plate test circuit; the input end of the conversion switch (3) is electrically connected to the output end of the voltage regulator (2), and the output end of the conversion switch (3) is electrically connected to the inductor plate test circuit through a first switch (41) or is electrically connected to the capacitor plate test circuit through a second switch (51); the inductor plate test circuit comprises a power resistor (42) and a resistor to be tested. The inductor plate (43) is tested; one end of the power resistor (42) is electrically connected to the first switch (41), and the other end is electrically connected to one end of the inductor plate (43) to be tested; the other end of the inductor plate (43) to be tested is grounded; a current transformer (44) is installed on the line between the first switch (41) and the power resistor (42); the capacitor plate test loop comprises a rectifier (52), a capacitor plate to be tested (53) and a discharge circuit; the input end of the rectifier (52) is electrically connected to the second switch (51); the output end of the rectifier (52) is electrically connected to the capacitor plate (53) to be tested; the capacitor plate (53) to be tested is connected in parallel with the discharge circuit; the discharge circuit comprises a discharge switch (541) and a discharge resistor (542) connected in series; It also includes a monitoring human-machine alarm system; the monitoring human-machine alarm system includes an intelligent meter (6) and a measurement and control touch screen (7); the intelligent meter (6) is electrically connected to the secondary side of the current transformer (44) or the voltage side of the inductor plate (43) to be tested or the voltage side of the capacitor plate (53) to be tested; the intelligent meter (6) is electrically connected to the processor of the measurement and control touch screen (7); the processor of the measurement and control touch screen (7) is connected to an expansion interface module; the expansion interface module is respectively connected to a printer and other monitoring equipment; the processor of the measurement and control touch screen (7) is also connected to a trip contact output; the trip contact output is electrically connected to a trip circuit start button; The capacitor board low voltage test process includes the following: A00: Connecting the electrical quantity to be tested of the capacitor plate (53) to the smart meter (6) and the measurement and control touch screen (7); A01: Press the start button (1) to connect the main circuit, and close the second switch (51) to connect the capacitor plate test circuit; A02: Adjust the voltage regulator (2) to achieve the required electrical quantity; A03: Click the report generation button on the measurement and control touch screen (7) to generate the final report; The low voltage test process of the inductor board is as follows: B00: Connecting the electrical quantity to be tested of the capacitor plate (53) to the smart meter (6) and the measurement and control touch screen (7); B01: Use the test leads of the smart meter (6) to test the DC resistance to be tested; B02: Press the start button (1) to connect the main circuit, and close the first switch (41) to connect the inductor board test circuit; B03: Adjust the voltage regulator (2) to achieve the required electrical quantity; B04: Click the Report Generate button on the measurement and control touch screen (7) to generate the final report.

2. The method for using the low-voltage test tool for capacitor and inductor panels according to claim 1 is characterized in that: The process before A00 includes the following: the main circuit is connected to the upper port of the circuit breaker through the normally closed contact of the conversion switch (3), and the lower port of the circuit breaker is connected to the second switch (51).

3. The method for using the low-voltage test tool for capacitor and inductor panels according to claim 1 is characterized in that: The process before B00 includes the following: the main circuit is connected to the upper port of the circuit breaker through the normally closed contact of the conversion switch (3), and the lower port of the circuit breaker is connected to the first switch (41).

Images