Three-position switch testing device

Abstract

The utility model discloses a three-position switch testing device. The device is connected with an operating mechanism of a three-position switch, is used for mechanical operation tests of an isolating switch and a grounding switch in the three-position switch, and comprises a box body (10); the wiring compartment (40) is arranged in the cavity of the box body, is provided with a test control circuit corresponding to the isolating switch and a test control loop corresponding to the grounding switch, is provided with a voltage regulating circuit corresponding to a working power supply of the driving motor, and is connected with the operating mechanism through a control cable; and the operation panel (20) is arranged on the surface of the box body, the operation panel is provided with a plurality of buttons used for controlling opening and closing of the isolating switch and the grounding switch, test starting and test sudden stop, and the operation panel is provided with a voltage regulating knob corresponding to the voltage regulating circuit. The three-position switch operation device solves the technical problems that an existing three-position switch operation device is low in test efficiency and lacks a display function.

Description

Technical Field

[0001] The utility model relates to the field of high-voltage switch equipment, in particular to a three-position switch test device. Background Art

[0002] At present, the mechanical operation test device of the three-station switch first conducts the isolating switch test, and the test personnel check the test status, change the line, and then conduct the grounding switch test. The time of the line change stage is uncontrollable, which makes the test efficiency low; there are few types of power supply voltage, and an additional power supply device is required; there is no display and alarm function, and the power supply voltage and test status cannot be monitored. There is no fault alarm and emergency stop function; there is no life count display function, and it is impossible to perform life cycle management such as device maintenance, inspection and scrapping according to the usage; the simple device puts the operating parts such as the air switch handle and time adjustment button in the same compartment as the wires and other components, and the space is compact. The live parts are not effectively protected from touch, and there are safety hazards for personnel during operation; and it is fixed and there is no convenient movement measure.

[0003] There is currently no effective solution to the problem. Utility Model Content

[0004] The embodiment of the utility model provides a three-position switch test device, so as to at least solve the technical problems of low test efficiency and lack of display function of the existing three-position switch operating device.

[0005] According to one aspect of the embodiment of the utility model, a three-position switch operating device is provided, which is connected to the operating mechanism of the three-position switch and is used for mechanical operation testing of the isolating switch and the earthing switch in the three-position switch, wherein the operating mechanism includes a driving motor, including: a box body 10; a wiring compartment 40, the wiring compartment 40 is arranged in the cavity of the box body, and the wiring compartment 40 is provided with a corresponding test control circuit of the isolating switch and a test control circuit of the earthing switch, and a voltage regulating circuit corresponding to the working power supply of the driving motor is also provided, and the wiring compartment is connected to the operating mechanism through a control cable; an operating panel 20, the operating panel 20 is arranged on the surface of the box body, and a plurality of buttons are provided on the operating panel 20 for realizing the control of the opening and closing of the isolating switch and the earthing switch, as well as the start and emergency stop of the test, and the operating panel is also provided with a voltage regulating knob corresponding to the voltage regulating circuit.

[0006] Optionally, the above-mentioned operation panel 20 includes: a switch operation panel 21, the above-mentioned switch operation panel 21 includes: a power switch, an isolating switch closing button, an isolating switch opening button, a grounding switch closing button, a grounding switch opening button, an operation test start button, an operation test stop button and an operation test setting number reset button; a circuit voltage regulating panel 22, the above-mentioned circuit voltage regulating panel 22 includes: a switch control loop voltage adjustment knob and a motor voltage adjustment knob.

[0007] Optionally, the three-position switch testing device further includes: a display panel 30, the display panel 30 is arranged on the surface of the box, the display panel 30 is used to display the operation results of the operation panel 20, the display panel 30 includes: a switch action number monitoring panel 31, the switch action number monitoring panel 31 is used to display the action number of the isolating switch and the action number of the grounding switch, wherein the isolating switch includes: the isolating switch closing button and the isolating switch opening button, and the grounding switch includes: the grounding switch closing button and the grounding switch opening button.

[0008] Optionally, the display panel 30 further includes: a mechanical operation count display panel 32, which is used to display the number of operation tests, the time interval between the closing and opening actions of the disconnecting switch, the time interval between the closing and opening actions of the earthing switch, the time interval between the actions of the disconnecting switch and the earthing switch, the mechanism abnormality judgment time, and the accumulated total number of operations.

[0009] Optionally, the display panel 30 further includes: a device status display panel 33, and the device status display panel 33 is used to display the real-time status of the three-position switch test device.

[0010] Optionally, the test control circuit of the above-mentioned isolating switch is used to transmit the isolating switch closing signal and the isolating switch opening signal, the test control circuit of the above-mentioned grounding switch is used to transmit the grounding switch closing signal and the grounding switch opening signal, and the above-mentioned voltage regulating circuit is used to transmit the driving motor voltage adjustment signal.

[0011] Optionally, the test control circuit of the isolating switch and the test control circuit of the grounding switch are both connected to a time relay, and the time relay is used to set the operation time of the isolating switch, the operation time of the grounding switch, and the alternating operation time of the isolating switch and the grounding switch.

[0012] Optionally, the voltage regulating circuit includes: four miniature circuit breakers, and the voltage regulating circuit controls the working power supply of the driving motor through the closing operation of the four miniature circuit breakers.

[0013] Optionally, the wiring compartment 40 is placed in the compartment 50 and also includes: a signal circuit, the signal circuit is used to transmit the isolating switch operation test completion signal and the grounding switch operation test completion signal; a heat dissipation circuit, the heat dissipation circuit is used to start a fan, and the fan is used to cool the test control circuit of the isolating switch and the test control circuit of the grounding switch.

[0014] Optionally, the box body 10 further includes: universal wheels 60 , at least four of which are arranged at the bottom of the box body 10 .

[0015] In the embodiment of the utility model, through the box body 10, one side of the box body 10 is provided with a display area and an operation area, and the other side of the box body 10 is provided with a wiring area; the wiring compartment 40, the wiring compartment 40 is arranged in the box body cavity, the wiring compartment 40 is provided with a corresponding test control circuit of the isolating switch and a test control circuit of the grounding switch, and is also provided with a voltage regulating circuit corresponding to the working power supply of the drive motor, and the wiring compartment is connected to the operating mechanism through a control cable; the operation panel 20, the operation panel 20 is arranged on the surface of the box body, and the operation panel 20 is provided 0 is provided with a plurality of buttons for realizing the control of the opening and closing of the isolating switch and the earthing switch, as well as the test start and the test emergency stop. The operation panel is also provided with a voltage regulating knob corresponding to the voltage regulating circuit, so that the three-position switch can perform the alternating mechanical operation test of isolating switch closing, isolating switch opening, earthing switch closing and earthing switch opening, thereby realizing the technical effect of completing the complete mechanical operation test of the whole three-position switch without changing the line, thereby solving the technical problems of low test efficiency and lack of display function of the existing three-position switch operation device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0017] Figure 1 It is a schematic structural diagram of a three-position switch operating device according to an embodiment of the utility model;

[0018] Figure 2 It is a schematic diagram of a framework of an optional three-position switch operating device according to an embodiment of the utility model;

[0019] Figure 3 is a schematic diagram of an optional electrical circuit according to an embodiment of the utility model;

[0020] Figure 4It is another optional electrical circuit schematic diagram according to an embodiment of the utility model. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0022] It should be noted that the terms "first", "second", etc. in the specification, claims and drawings of the utility model are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the utility model described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0023] According to an embodiment of the utility model, an embodiment of a three-position switch operating device is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0024] Figure 1 Schematic diagram of the structure of a three-position switch operating device according to an embodiment of the utility model. Figure 1 As shown, the device includes: a box body 10; a wiring compartment 40, which is arranged in the box body cavity, and the wiring compartment 40 is provided with a corresponding test control circuit of the above-mentioned isolating switch and a test control circuit of the above-mentioned grounding switch, and is also provided with a voltage regulating circuit corresponding to the working power supply of the above-mentioned drive motor, and the above-mentioned wiring compartment is connected to the above-mentioned operating mechanism through a control cable; the above-mentioned operation panel 20, which is arranged on the surface of the box body, and is provided with a plurality of buttons on the above-mentioned operation panel 20 for realizing the control of the opening and closing of the above-mentioned isolating switch and the above-mentioned grounding switch, as well as the test start and test emergency stop, and the above-mentioned operation panel is also provided with a voltage regulating knob corresponding to the above-mentioned voltage regulating circuit.

[0025] In one embodiment of the present invention, Figure 2 As shown in the schematic diagram of the framework of the three-position switch operating device, the three-position switch operating device is connected to the device under test through the control line and the signal line, and the device under test is connected to the AC power supply through the power line; through the three-position switch operating device, the three-position switch can perform alternating mechanical operation tests of isolating switch closing, isolating switch opening, grounding switch closing, and grounding switch opening, so that the entire three-position switch can complete a complete mechanical operation test without changing lines.

[0026] In an optional embodiment, the operation panel 20 includes: a switch operation panel 21 and a circuit voltage regulating panel 22; the switch operation panel 21 includes: a power switch, an isolating switch closing button, an isolating switch opening button, a grounding switch closing button, a grounding switch opening button, an operation test start button, an operation test stop button and an operation test setting number reset button; the circuit voltage regulating panel 22 includes: a switch control loop voltage adjustment knob and a motor voltage adjustment knob.

[0027] Optionally, the switch operation panel 21 is provided with a power switch, a manual closing and opening operation button for the isolating switch, a manual closing and opening operation button for the grounding switch, an operation test start button, an emergency stop button and a reset button for the set number of times. The circuit voltage regulating panel 22 is provided with a control voltage regulating knob and a motor voltage regulating knob.

[0028] In an optional embodiment, the three-position switch test device further includes: a display panel 30 , which is arranged on the surface of the box body and on the same surface as the operation panel 20 , and is used to display the operation result of the operation panel 20 .

[0029] Optionally, the display panel 30 includes: a switch action count monitoring panel 31, which is used to display the action counts of the isolating switch and the action counts of the grounding switch, wherein the isolating switch includes: the isolating switch closing button and the isolating switch opening button; the grounding switch includes: the grounding switch closing button and the grounding switch opening button.

[0030] In an optional embodiment, the above-mentioned display panel 30 also includes: a mechanical operation number display panel 32, which is used to display the setting of the number of operation tests, the setting of the time interval for closing and opening actions of the disconnecting switch, the setting of the time interval for closing and opening actions of the grounding switch, the setting of the time interval for the actions of the disconnecting switch and the grounding switch, the setting of the mechanism abnormality judgment time and the accumulation of the total number of operations.

[0031] Optionally, the mechanical operation count display panel 32 is used for mechanical operation count setting and real-time count display. The mechanical operation count display panel 32 can be used to set the time of the opening and closing instructions, and can also display the real-time remaining time; as well as to set the operation time of the disconnector and the grounding switch and display the real-time remaining time, set the mechanism abnormality judgment time and display the real-time remaining time, and display the device life count.

[0032] In an optional embodiment, the display panel 30 further includes: a device status display panel 33, and the device status display panel 33 is used to display the real-time status of the three-position switch test device.

[0033] Optionally, the device status display panel 33 is used for real-time status display, such as: fault signal buzzer prompt, mechanical operation test completion prompt, real-time control voltage, motor voltage display, etc.

[0034] In an optional embodiment, the test control circuit of the isolating switch is used to transmit the isolating switch closing signal and the isolating switch opening signal, the test control circuit of the grounding switch is used to transmit the grounding switch closing signal and the grounding switch opening signal, and the voltage regulating circuit is used to transmit the drive motor voltage adjustment signal. In an optional embodiment, the wiring compartment 40 includes: a cable plug-in area 41, which is used to plug the cables corresponding to the test control circuit of the isolating switch, the test control circuit of the grounding switch, and the voltage regulating circuit; and a component wiring area 42, which is used to connect the above-mentioned buttons with the cables.

[0035] In an optional embodiment, the box 10 includes: a placement compartment 50, the placement compartment 50 is arranged in the box cavity, the placement compartment 50 is arranged in the placement area, and the placement area and the wiring area are arranged on the same surface of the box 10.

[0036] Optionally, the placement compartment 50 includes: a tool placement compartment 51 , a test line placement compartment 52 and a cable placement compartment 53 .

[0037] In an optional embodiment, the box 10 further includes: universal wheels 60, at least four universal wheels 60 are arranged at the bottom of the box 10, and are used to move the above-mentioned test device.

[0038] In one embodiment of the present invention, Figure 3 and Figure 4 The electrical circuit diagram shown, the circuit composition and the operation process are introduced as follows:

[0039] In an optional embodiment, the voltage regulating circuit comprises: four miniature circuit breakers, and the voltage regulating circuit controls the working power supply of the driving motor through the on-off operation of the four miniature circuit breakers.

[0040] Optional, still as Figure 3 and Figure 4 As shown, the device can control, select and adjust the motor power supply through multiple miniature circuit breakers. When miniature circuit breakers DK1 or DK2 are closed / DK3 or DK4 are closed, the device can control or adjust the motor power supply.

[0041] It should be noted that the above-mentioned multiple miniature circuit breakers can respectively control the test control circuit (DS motor circuit) of the disconnector and the test control circuit (ES motor circuit) of the earthing switch.

[0042] In an optional embodiment, the test control circuit of the above-mentioned isolating switch and the test control circuit of the above-mentioned grounding switch are both connected to a time relay, and the above-mentioned time relay is used to set the operation time of the above-mentioned isolating switch, the operation time of the above-mentioned grounding switch, and the alternating operation time of the above-mentioned isolating switch and the above-mentioned grounding switch.

[0043] Optionally, a pre-operation is required before the test operation, and the closing button (which can be named DHA) of the test disconnecting switch, the opening button (which can be named DFA) of the test disconnecting switch, the closing button (which can be named EHA) of the test earthing switch, and the opening button (which can be named EFA) of the test earthing switch are pressed to check whether the mechanism cable connection is correct.

[0044] As an optional embodiment, after determining that the cable is correctly connected, specific values ​​of the operation time and the number of operations are set.

[0045] Optional, time values ​​include: SJ-time interval for alternating operation of isolating switch and earthing switch; SJD-time interval for closing operation and opening operation of isolating switch; SJE-time interval for closing and opening operation of earthing switch; BJ-time threshold for abnormal state, abnormal state greater than this time will trigger alarm and terminate the test.

[0046] Optionally, the test number value includes: the number of times required for the mechanical operation test, such as 1000 times (which can be set according to actual conditions).

[0047] As an optional embodiment, taking the isolating switch operation test as an example, after the setting is completed, the test circuit can be started by pressing the start button (which can be named QA). Figure 3 and Figure 4 The 1-2 contacts of the K2 contactor coil are closed, sending out the disconnector closing signal, and the disconnector performs the closing operation; at the same time, the disconnector operation time relay coil SJD and the alternating operation time relay coil SJ are energized and start timing. If the test needs to be terminated urgently, the stop button (which can be named TA) can be pressed to stop the operation test.

[0048] Optionally, after the timing of the isolating switch operation time relay coil SJD is completed, its 6-8 contacts are closed, the KD contactor is energized, the 21-22 contacts are opened, the isolating switch closing signal is disconnected, the 1-2 contacts are closed, the opening signal is issued, and the isolating switch performs the opening operation.

[0049] Optionally, after the timing of the alternating operation time relay coil SJ is completed, its 6-8 contacts are closed, the K1 contactor is energized, the 21-22 contacts are opened to disconnect the isolation switch control circuit, and the 1-2 contacts are closed to open the grounding switch control circuit.

[0050] It should be noted that the process of closing and opening operation test of the grounding switch is consistent with the operation test of the isolating switch.

[0051] In addition, each time an operation is performed, the normally open contacts 3-4 of the KE contactor are closed once, the counter counts once, and the number of test operations is accumulated; when the number of operations reaches the set number, after the test is completed, or when a mechanism fails, the counter or alarm relay sends a signal to the alternating time relay SJ and the switch operation time relay SJD to stop the operation test.

[0052] As an optional embodiment, the wiring compartment 40 further includes: a signal circuit, which is used to transmit the isolating switch operation test completion signal and the grounding switch operation test completion signal; a heat dissipation circuit, which is used to start a fan, and the fan is used to cool the test control circuit of the isolating switch and the test control circuit of the grounding switch.

[0053] Optional, such as Figure 4 As shown in the figure, when the miniature circuit breaker DK0 is closed, the signal circuit is powered on. The voltage of the control circuit and the motor circuit can be observed through the voltmeters PV1-PV4; the AC and DC of the control power supply and the AC and DC of the motor power supply can be mutually locked through the power interlocking circuit; the number of operations of the test device can be recorded through the tooling life counting circuit.

[0054] Optionally, the operating status of the test device can be observed through the closing and opening signal circuits of the isolating switch and the earthing switch; the status can be judged by collecting the closing and opening position signals of the mechanism, such as mechanism failure and stop action, which can be prompted by buzzers and flashing signal lights; and a signal light prompt indicating the completion of the operation test can be obtained through the running-in completion signal circuit.

[0055] In addition, the test device also has a heat dissipation circuit, and the fan is started through the heat dissipation circuit to cool the test device.

[0056] The test device provided in the present application also has a counting circuit, which can monitor the operation tests of 8 three-position switches at the same time.

[0057] In an embodiment of the utility model, a three-station switch alternating mechanical operation test device includes a box, a display panel, an operation panel, a voltage regulating panel, a tool placement compartment, a test line placement compartment, a cable plugging area, a cable placement compartment, a universal wheel and a component wiring area. The above-mentioned test device has signal and auxiliary circuits, AC / DC selection and voltage regulating circuits for control power supply and motor power supply, a pre-operation circuit in control, a fixed value for setting operation time and operation times, a test start circuit, a control circuit, a running-in counting circuit, a test stop circuit, a running-in reset circuit and a tool emergency stop circuit, which realizes the alternating mechanical operation test of isolating switch closing, isolating switch opening, grounding switch closing and grounding switch opening, so that the entire three-station switch can complete the complete mechanical operation test without changing the line, thereby solving the technical problems of low test efficiency and lack of display function of the existing three-station switch operation device.

[0058] The serial numbers of the above-mentioned embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.

[0059] In the above embodiments of the present invention, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0060] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are only schematic. For example, the division of the units can be a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.

[0061] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple units. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0062] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0063] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the utility model, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions to enable a computer device (which can be a personal computer, a server or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the utility model. The aforementioned storage medium includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, disk or optical disk and other media that can store program codes.

[0064] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A three-position switch test device, connected to the operating mechanism of the three-position switch, used for mechanical operation test of the isolating switch and the earthing switch in the three-position switch, wherein: The operating mechanism includes a driving motor, characterized in that it comprises: Box body (10); A wiring compartment (40), the wiring compartment (40) being arranged in the cavity of the box body, the wiring compartment (40) being provided with a test control circuit corresponding to the isolating switch and a test control circuit corresponding to the grounding switch, and also being provided with a voltage regulating circuit corresponding to the working power supply of the driving motor, the wiring compartment being connected to the operating mechanism via a control cable; An operation panel (20), the operation panel (20) being arranged on the surface of the box body, the operation panel (20) being provided with a plurality of buttons for realizing the control of the opening and closing of the isolating switch and the earthing switch, as well as the start and emergency stop of the test, and the operation panel is also provided with a voltage regulating knob corresponding to the voltage regulating circuit.

2. The device according to claim 1, characterized in that The operation panel (20) comprises: Power switch button, isolating switch closing button, isolating switch opening button, earthing switch closing button, earthing switch opening button, operation test start button, operation test stop button and operation test setting number reset button.

3. The device according to claim 2, characterized in that The three-position switch test device further comprises: a display panel (30), the display panel (30) being arranged on the surface of the box body, the display panel (30) being used to display the operation result of the operation panel (20), the display panel (30) comprising: The switch operation number monitoring panel (31) is used to display the operation number of the isolating switch and the operation number of the grounding switch.

4. The device according to claim 3, characterized in that The display panel (30) further comprises: A mechanical operation number display panel (32) is used to display the number of operation tests, the time interval between the closing and opening actions of the isolating switch, the time interval between the closing and opening actions of the earthing switch, the time interval between the actions of the isolating switch and the earthing switch, the time for judging abnormality of the mechanism, and the total number of operation accumulations.

5. The device according to claim 4, characterized in that The display panel (30) further comprises: A device status display panel (33), wherein the device status display panel (33) is used to display the real-time status of the three-position switch test device.

6. The device according to claim 1, characterized in that The test control circuit of the isolating switch is used to transmit the isolating switch closing signal and the isolating switch opening signal, the test control circuit of the grounding switch is used to transmit the grounding switch closing signal and the grounding switch opening signal, and the voltage regulating circuit is used to transmit the driving motor voltage adjustment signal.

7. The device according to claim 1, characterized in that The test control circuit of the isolating switch and the test control circuit of the grounding switch are both connected to a time relay, and the time relay is used to set the operation time of the isolating switch, the operation time of the grounding switch, and the alternating operation time of the isolating switch and the grounding switch.

8. The device according to claim 1, characterized in that The voltage regulating circuit includes four miniature circuit breakers, and the voltage regulating circuit controls the working power supply of the driving motor through the on-off operation of the four miniature circuit breakers.

9. The device according to claim 1, characterized in that The wiring compartment (40) further comprises: A signal circuit, wherein the signal circuit is used to transmit an isolating switch operation test completion signal and an earthing switch operation test completion signal; A heat dissipation circuit is used to start a fan, and the fan is used to cool the test control circuit of the isolation switch and the test control circuit of the grounding switch.

10. The device according to claim 1, characterized in that The box (10) further comprises: Universal wheels (60), at least four of which are arranged at the bottom of the box body (10).

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