Intelligent on-load switch wireless controller device

Abstract

The invention relates to an intelligent on-load switch wireless controller device, and the device comprises a control terminal which is used for transmitting an ascending or descending gear switching control command to an on-load switch wireless controller in a wireless communication manner; the on-load switch wireless controller is connected with the touch executing mechanism through a signal line and is used for receiving a control command of the control terminal in a wireless communication mode and sending a driving command for realizing ascending or descending gear switching to the touch executing mechanism based on the received control command; and two button contacts of the touch execution mechanism directly face an ascending button or a descending button of the on-load tap-changer, and the touch execution mechanism is used for acting according to the driving instruction and touching the corresponding button of the on-load tap-changer to realize ascending or descending gear switching. The device is convenient to operate and can improve the working efficiency and reduce the working risk.

Description

Technical Field

[0001] The invention relates to an intelligent on-load switch wireless controller device. Background Art

[0002] Transformers are core equipment in the power industry. According to current electrical test procedures such as "GB50150-2016 Electrical Equipment Acceptance Test Standard for Electrical Installation Engineering", test items such as transformer winding DC resistance, on-load tap changer transition characteristics, transformer ratio and low-voltage short-circuit impedance are preventive routine test items for transformers. These test items require reversing back and forth.

[0003] The total number of tappings of a typical transformer on-load tap changer is 17. The transition resistance test of the on-load tap changer needs to go through two large cycles from 1st gear to 17th gear, and then from 17th gear to 1st gear. When conducting the transformation ratio, DC resistance and short-circuit impedance test, it is also necessary to increase from 1st gear to 17th gear or decrease from 17th gear to 1st gear to complete the corresponding transformation ratio, DC resistance and short-circuit impedance test items. The on-load tap changer mechanism box voltage regulation gear shift has the following problems: 1) When the on-load voltage regulator is adjusted, one person is required to perform the high-voltage side winding shift operation at one end of the on-load voltage regulator mechanism to cooperate with the test personnel at the other end to perform the test operation. The test personnel will perform the test after confirming the gear position by calling on the spot, which has low ergonomics.

[0004] 2) Since the on-load voltage regulating mechanism and the test operation end are not in the same location, the tester will confirm the gear position by calling out at both ends before conducting the test. This is prone to missed tests and repeated tests, which is time-consuming and labor-intensive. Summary of the invention

[0005] The object of the present invention is to provide an intelligent on-load switch wireless controller device, which is easy to operate, can improve work efficiency and reduce work risks.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is: an intelligent on-load switch wireless controller device, comprising: A control terminal, used for sending an up or down gear switching control command to the on-load switch wireless controller through wireless communication; A wireless controller for the on-load switch, connected to the touch actuator via a signal line, for receiving a control command from the control terminal via wireless communication, and sending a drive command for realizing an up or down gear shift to the touch actuator based on the received control command; and The touch actuator has two button contacts facing the up or down button of the on-load tap changer, and is used to perform actions according to the drive instructions, and touch the corresponding button of the on-load tap changer to realize up or down switching.

[0007] Furthermore, the on-load switch wireless controller includes a power module, a microprocessor controller and peripheral circuits, a wireless transceiver module and a serial communication circuit.

[0008] Furthermore, the power module includes a 12V battery, and the 12V adapter charges the 12V battery connected to the interface J3 through the interface J1 and the unidirectional diode; during the charging process, the power is monitored by the measurement circuit realized by the resistor R1, the resistor R2 and the capacitor C5, and the charging status is marked by the charging mark circuit realized by the resistor R3, the resistor R4, the resistor R5 and the transistor Q; the 12V battery is stabilized into a 5V voltage by the voltage regulator chip U1 to power the microprocessor controller and the surrounding circuits.

[0009] Furthermore, the microprocessor controller uses a single-chip microcomputer STC12C5025AD-20 to analyze the signal received by the wireless transceiver module and then control the action of the touch actuator.

[0010] Furthermore, the wireless transceiver module adopts a 433 wireless transceiver module with high-frequency radio frequency technology, and the communication adopts the 433MHz free frequency band for external communication without authorization.

[0011] Furthermore, the serial communication circuit adopts chip MC3232, and MC3232 communication has 3V to 5.5V dual-channel 250kbps RS-232 line driver / receiver with + / -15kV ESD protection. The microcontroller program is burned through the chip MC3232 channel as the program download port; the channel is connected to the 433 wireless transceiver module through interface JP1 via TXD and RXD to realize signal transmission and reception.

[0012] Furthermore, the touch actuator includes two touch drive motors, an adjustable connection support structure and a magnetic base. The two touch drive motors are simultaneously installed on the adjustable connection support structure. The telescopic ends of the two touch drive motors are respectively provided with button contacts, and are respectively facing the up or down button of the on-load tap changer, so that when extended, they touch the corresponding button of the on-load tap changer. The adjustable connection support structure is connected to the magnetic base so that the touch actuator is fixedly adsorbed at a set position through the magnetic base; the two touch drive motors are respectively electrically connected to the on-load switch wireless controller through signal lines.

[0013] Furthermore, the adjustable connecting support structure includes a fixed rod, an upper arm support rod and a lower arm support rod, the two touch drive motors are fixedly connected to the upper end of the fixed rod, the lower end of the fixed rod is universally connected to the upper end of the upper arm support rod, the lower end of the upper arm support rod is universally connected to the upper end of the lower arm support rod, and the lower end of the lower arm support rod is universally connected to the magnetic base.

[0014] Compared with the prior art, the present invention has the following beneficial effects: the present invention provides an intelligent on-load switch wireless controller device, which wirelessly controls the on-load switch gear controller in the transformer preventive test programmable switching device extended protocol, realizes remote operation of the transformer on-load voltage regulating mechanism, solves the current measurement of transformer ratio, direct resistance, on-load and short-circuit impedance, brings about low ergonomics, high operation risk, long time consumption and impact on test data, ensures the accuracy of test data, reduces operation risk, improves operation efficiency, and ensures personal and equipment safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of a device according to an embodiment of the present invention; Figure 2 is a circuit diagram of a power module in an embodiment of the present invention; Figure 3 is a circuit diagram of a microprocessor controller and surrounding circuits in an embodiment of the present invention; Figure 4 is a circuit diagram of a serial communication circuit in an embodiment of the present invention; Figure 5 4 is a circuit diagram of a touch actuator in an embodiment of the present invention.

[0016] In the figure: 1-touch driving motor; 2-button contact; 3-signal line; 4-pivot thread switch; 5-fixing rod; 6-ball head universal joint; 7-upper arm support rod; 8-lower arm support rod; 9-ball head universal joint; 10-magnetic base; 11-magnetic switch. DETAILED DESCRIPTION

[0017] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0018] It should be noted that the following detailed descriptions are exemplary and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.

[0019] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0020] like Figure 1As shown, this embodiment provides an intelligent on-load switch wireless controller device, including: a control terminal, an on-load switch wireless controller and a touch actuator.

[0021] The control terminal is used to send an up or down gear switching control command to the on-load switch wireless controller through wireless communication.

[0022] The on-load switch wireless controller is connected to the touch actuator via a signal line, and is used to receive control commands from the control terminal via wireless communication, and issue a drive command to the touch actuator for realizing up or down gear switching based on the received control command.

[0023] The two button contacts of the touch actuator face the 1-N (up) or N-1 (down) button of the on-load tap changer, and are used to act according to the drive instruction, and touch the corresponding button of the on-load tap changer to realize up or down gear switching.

[0024] In this embodiment, the on-load switch wireless controller includes a power module, a microprocessor controller and peripheral circuits, a wireless transceiver module and a serial communication circuit.

[0025] like Figure 2 As shown, in this embodiment, the power module includes a 12V battery, and the 12V adapter charges the 12V battery connected to the interface J3 through the interface J1 through a unidirectional diode; during the charging process, the power is monitored by a measuring circuit implemented by a resistor R1, a resistor R2 and a capacitor C5, and the charging status is marked by a charging mark circuit implemented by a resistor R3, a resistor R4, a resistor R5 and a transistor Q; the 12V battery is stabilized into a 5V voltage through a voltage regulator chip U1 (AS1117-5.0) to power the microprocessor controller and surrounding circuits.

[0026] The microprocessor controller is the core of the on-load switch wireless controller. Figure 3 As shown, in this embodiment, the microprocessor controller uses a U2 single-chip microcomputer STC12C5025AD-20 to analyze the signal received by the wireless transceiver module, and then control the action of the touch actuator, so that the contact 1-N (up) or N-1 (down) on-load tap changer rises or falls.

[0027] The intelligent load switch wireless controller device is wirelessly transceived. In this embodiment, the wireless transceiver module adopts a 433 wireless transceiver module with high-frequency radio frequency technology, and the communication adopts a 433MHz free frequency band for external communication without authorization.

[0028] like Figure 4As shown, in this embodiment, the serial communication circuit adopts U3 chip MC3232, and MC3232 communication has 3V to 5.5V dual-channel 250kbps RS-232 line driver / receiver with + / -15kV ESD protection. The microcontroller burns the program through the U3 chip MC3232 channel as the program download port; the channel is connected to the 433 wireless transceiver module through the JP1 interface via TXD and RXD to realize signal transmission and reception.

[0029] like Figure 5 As shown, in this embodiment, the touch actuator includes two touch drive motors 1, an adjustable connection support structure and a magnetic base 10, the two touch drive motors 1 are installed on the adjustable connection support structure at the same time, and button contacts 2 are respectively arranged on the telescopic ends of the two touch drive motors 1, and respectively face the 1-N (up) or N-1 (down) button of the on-load tap changer, so that when extended, they touch the corresponding button of the on-load tap changer, and the adjustable connection support structure is connected to the magnetic base 10, so that the touch actuator is fixedly adsorbed at the set position through the magnetic base 10; the two touch drive motors 1 are electrically connected to the on-load switch wireless controller through the signal line 3.

[0030] The adjustable connection support structure includes a fixed rod 5, an upper arm support rod 7 and a lower arm support rod 8. The two touch driving motors 1 are fixedly connected to the upper end of the fixed rod 5. The lower end of the fixed rod 5 is universally connected to the upper end of the upper arm support rod 7 through a ball head universal joint 6, so as to realize the spherical rotation of the fixed rod 5 relative to the upper arm support rod 7. The lower end of the upper arm support rod 7 is universally connected to the upper end of the lower arm support rod 8 through a pivot thread switch 4. The pivot connection realizes the rotation of the upper arm support rod 7 and the lower arm support rod 8 along a center. Tightening the pivot thread switch allows the upper arm support rod 7, the lower arm support rod 8 and the fixed rod 5 to be fixed at any position, so that all-round universal touch is possible. The lower end of the lower arm support rod 8 is universally connected to the magnetic base 10 through a ball head universal joint 9, so as to realize the spherical rotation of the lower arm support rod 8 relative to the magnetic base 10. A magnetic switch 11 is provided on the magnetic base 10, which is used to adjust whether the magnetic base 10 is magnetic, thereby fixing the entire support; During use, the control terminal sends out a self-test signal, and the on-load switch wireless controller immediately replies with a self-test signal. The control terminal receives the self-test signal, indicating that the intelligent on-load switch wireless controller device has successfully handshaked and can be used.

[0031] During the preventive routine test or maintenance of the transformer, the test items such as the DC resistance of the transformer winding, the transition characteristics of the on-load tap changer, the transformer ratio and the low-voltage short-circuit impedance are tested. The test personnel operating the instrument need to switch the on-load tap changer and operate the control terminal at any time to send a control up or down switching signal wirelessly. The intelligent on-load switch wireless controller receives the signal wirelessly and touches the actuator control contact 1-N (up) or N-1 (down) to make the on-load tap changer rise or fall.

[0032] The above is only a preferred embodiment of the present invention, and does not limit the present invention in other forms. Any technician familiar with the profession may use the above disclosed technical content to change or modify it into an equivalent embodiment with equivalent changes. However, any simple modification, equivalent change and modification made to the above embodiment according to the technical essence of the present invention without departing from the technical solution of the present invention still belongs to the protection scope of the technical solution of the present invention.

Claims

1. An intelligent on-load switch wireless controller device, characterized in that: include: A control terminal, used for sending an up or down gear switching control command to the on-load switch wireless controller through wireless communication; The on-load switch wireless controller is connected to the touch actuator through a signal line, and is used to receive a control command from the control terminal through wireless communication, and send a drive command for realizing an up or down gear switching to the touch actuator based on the received control command; as well as The touch actuator has two button contacts facing the up or down button of the on-load tap changer, and is used to perform actions according to the drive instructions, and touch the corresponding button of the on-load tap changer to realize up or down switching.

2. The intelligent on-load switch wireless controller device according to claim 1, characterized in that: The on-load switch wireless controller comprises a power module, a microprocessor controller and peripheral circuits, a wireless transceiver module and a serial communication circuit.

3. The intelligent on-load switch wireless controller device according to claim 2 is characterized in that: The power module includes a 12V battery, and the 12V adapter charges the 12V battery connected to the interface J3 through the interface J1 and the unidirectional diode; during the charging process, the power is monitored by the measurement circuit realized by the resistor R1, the resistor R2 and the capacitor C5, and the charging status is marked by the charging mark circuit realized by the resistor R3, the resistor R4, the resistor R5 and the transistor Q; the 12V battery is stabilized into a 5V voltage by the voltage stabilizing chip U1 to power the microprocessor controller and the surrounding circuits.

4. The intelligent on-load switch wireless controller device according to claim 2 is characterized in that: The microprocessor controller adopts a single-chip microcomputer STC12C5025AD-20 to analyze the signal received by the wireless transceiver module and then control the action of the touch actuator.

5. The intelligent on-load switch wireless controller device according to claim 2 is characterized in that: The wireless transceiver module adopts a 433 wireless transceiver module with high-frequency radio frequency technology, and the communication adopts the 433MHz free frequency band for external communication without authorization.

6. The intelligent on-load switch wireless controller device according to claim 2, characterized in that: The serial communication circuit adopts chip MC3232. MC3232 communication has 3V to 5.5V dual-channel 250kbps RS-232 line driver / receiver with + / -15kV ESD protection. The microcontroller program is burned through the chip MC3232 channel as the program download port; the channel is connected to the 433 wireless transceiver module through the JP1 interface via TXD and RXD to realize signal transmission and reception.

7. The intelligent on-load switch wireless controller device according to claim 1, characterized in that: The touch actuator includes two touch drive motors, an adjustable connection support structure and a magnetic base. The two touch drive motors are installed on the adjustable connection support structure at the same time. The telescopic ends of the two touch drive motors are respectively provided with button contacts, and are respectively facing the up or down button of the on-load tap changer, so that when extended, they touch the corresponding button of the on-load tap changer. The adjustable connection support structure is connected to the magnetic base, so that the touch actuator is fixedly adsorbed at a set position through the magnetic base; the two touch drive motors are electrically connected to the on-load switch wireless controller through signal lines.

8. The intelligent on-load switch wireless controller device according to claim 7, characterized in that: The adjustable connecting support structure includes a fixed rod, an upper arm support rod and a lower arm support rod. The two touch drive motors are fixedly connected to the upper end of the fixed rod, the lower end of the fixed rod is universally connected to the upper end of the upper arm support rod, the lower end of the upper arm support rod is universally connected to the upper end of the lower arm support rod, and the lower end of the lower arm support rod is universally connected to the magnetic base.

Images