A magnetic induction type on-load switch gear remote control adjustment device and system

Abstract

The present invention discloses a magnetic induction type on-load switch gear remote control adjustment device and system. The device includes: a magnetic field generating unit, a magnetic field sensing unit, a switch unit, a power supply unit and a signal receiving unit; the signal receiving unit is used to receive a command signal and form a control signal according to the command signal; the switch unit is used to connect the power supply unit and the magnetic field generating unit according to the control signal, and the power supply unit is used to provide a positive direction electric signal or a negative direction electric signal to the magnetic field generating unit; the magnetic field generating unit is used to generate a magnetic field according to the direction of the electric signal; the magnetic field sensing unit is used to sense the change of the magnetic field to achieve rotation in different directions. The technical solution of the embodiment of the present invention is that the magnetic field generating unit generates a corresponding magnetic field according to the direction of the electric signal, and the magnetic field sensing unit drives the on-load switch adjustment knob to rotate according to the change of the magnetic field to achieve automatic adjustment of the gear, thereby reducing manual repetitive work, reducing the error rate, and improving the test efficiency and power supply reliability.

Description

Technical Field

[0001] The embodiments of the present invention relate to the technical field of power equipment, and in particular to a magnetic induction type on-load switch gear remote control adjustment device and system. Background Art

[0002] Transformers are core equipment in power systems. Power outage testing requires multiple cycles of switching to polish the oil film on the on-load tap changer windings for more accurate test data. This is time-consuming and can reduce power supply reliability. Furthermore, many tests require frequent adjustment of the on-load tap changer. For example, DC resistance testing requires one person to operate the on-load tap changer and another to operate the test instrument for measurement. These two individuals collaborate closely to complete the test.

[0003] Currently, on-load switch adjustment is mostly done manually, but information transmission between personnel is prone to errors and has a high error rate. In addition, manual multiple-cycle adjustment takes a long time, which reduces test efficiency and leads to reduced power supply reliability of the power system. Summary of the Invention

[0004] The present invention provides a magnetic induction type on-load switch gear remote control adjustment device and system, which can reduce manual repetitive work, lower the error rate, and improve test efficiency, thereby improving the power supply reliability of the power system.

[0005] In order to achieve the above technical problems, the present invention adopts the following technical solutions:

[0006] In a first aspect, the present invention provides a magnetic induction type on-load switch gear remote control adjustment device comprising: a magnetic field generating unit, a magnetic field sensing unit, a switch unit, a power supply unit and a signal receiving unit;

[0007] The signal receiving unit is used to receive an instruction signal and form at least one control signal according to the instruction signal; the switching unit is connected to the signal receiving unit and the power supply unit, and the magnetic field generating unit is connected to the power supply unit. The switching unit is used to connect the power supply unit and the magnetic field generating unit according to the control signal, and the power supply unit is used to provide the magnetic field generating unit with an electrical signal in a positive direction or an electrical signal in a negative direction; the magnetic field generating unit is used to generate a magnetic field in a first rotation direction or a magnetic field in a second rotation direction according to the direction of the electrical signal; the magnetic field sensing unit is arranged in the magnetic field and is fixedly connected to the on-load switch adjustment knob; the magnetic field sensing unit is used to drive the on-load switch adjustment knob to rotate according to the change of the magnetic field; wherein, the first rotation direction and the second rotation direction are opposite.

[0008] Optionally, the magnetic field generating unit includes a first electromagnet and a second electromagnet;

[0009] The first electromagnet includes a first iron core and a first coil, and the first coil is wound on the first iron core; the second electromagnet includes a second iron core and a second coil, and the second coil is wound on the second iron core; the winding direction of the first coil is opposite to the winding direction of the second coil, the starting point of the first coil and the starting point of the second coil are both connected to the first end of the power supply unit, the second end of the power supply unit is connected to the second end of the switch unit, the third end of the power supply unit is connected to the third end of the switch unit, and the end point of the first coil and the end point of the second coil are both connected to the first end of the switch unit through the signal receiving unit; the switch unit is used to connect the first end of the switch unit with the second end of the switch unit, or connect the first end of the switch unit with the third end of the switch unit according to the control signal.

[0010] Optionally, the power supply unit includes a first battery and a second battery;

[0011] The positive electrode of the first battery and the negative electrode of the second battery serve as the first end of the power supply unit, the negative electrode of the first battery serves as the second end of the power supply unit, and the positive electrode of the second battery serves as the third end of the power supply unit.

[0012] Optionally, the switch unit includes a single-pole double-throw switch;

[0013] The fixed end of the single-pole double-throw switch serves as the first end of the switch unit, the first movable end of the single-pole double-throw switch serves as the second end of the switch unit, and the second movable end of the single-pole double-throw switch serves as the third end of the switch unit.

[0014] Optionally, the magnetic field induction unit includes a permanent magnet; the first electromagnet and the second electromagnet are arranged along a first direction and extend along a second direction; the permanent magnet is arranged between the first electromagnet and the second electromagnet and extends along the second direction; wherein the first direction and the second direction are orthogonal to each other.

[0015] Optionally, the magnetic induction on-load switch gear remote control adjustment device further includes a carrier, and the permanent magnet is arranged on the carrier; the geometric center of the permanent magnet is rotatably connected to the carrier.

[0016] Optionally, the signal receiving unit includes a decoding unit, and the decoding unit is used to decode the instruction signal to form the control signal.

[0017] Optionally, the command signal includes a gear adjustment direction and a gear adjustment number, the number of control signals formed by the signal receiving unit according to the command signal is the same as the gear adjustment number, and the direction of the electrical signal provided by the power supply unit is set corresponding to the gear adjustment direction.

[0018] In a second aspect, the present invention provides a magnetic induction on-load switch gear remote control adjustment system, comprising a remote controller and a magnetic induction on-load switch gear remote control adjustment device provided by any embodiment of the present invention;

[0019] The remote controller is communicatively connected to the signal receiving unit of the magnetic induction type on-load switch gear remote control adjustment device, and the remote controller is used to send a command signal according to a user command.

[0020] Optionally, the remote controller includes an input unit, an encoding unit and a transmitting unit;

[0021] The input unit is used to input the user instruction; the encoding unit is connected to the input unit, and the encoding unit is used to form the instruction signal according to the user instruction and encode the instruction signal; the transmitting unit is connected to the encoding unit, and the transmitting unit is used to transmit the instruction signal.

[0022] The technical solution of the embodiment of the present invention obtains a command signal through a signal receiving unit to form a control signal. The switch unit connects the power supply unit and the magnetic field generating unit according to the control signal, causing the power supply unit to generate a positive or negative electrical signal. The magnetic field generating unit generates a corresponding magnetic field according to the direction of the electrical signal. The magnetic field sensing unit drives the load switch adjustment knob to rotate according to the change of the magnetic field. This realizes that the magnetic induction load switch gear remote control adjustment device automatically adjusts the load switch gear according to the command signal, reducing manual repetitive work and lowering the error rate. In addition, it can reduce the transformer power outage pre-test time, improve test efficiency, and thus improve the power supply reliability of the power system.

[0023] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present invention, nor is it intended to limit the scope of the present invention. Other features of the present invention will become readily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a structural diagram of a magnetic induction type on-load switch gear remote control adjustment device provided by an embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram of the structure of a circuit of a magnetic induction type on-load switch gear remote control adjustment device provided by an embodiment of the present invention;

[0026] Figure 3 This is a structural diagram of another magnetic induction type on-load switch gear remote control adjustment device provided by an embodiment of the present invention;

[0027] Figure 4 This is a schematic diagram of the structure of a circuit of another magnetic induction type on-load switch gear remote control adjustment device provided by an embodiment of the present invention;

[0028] Figure 5 This is a schematic diagram of the structure of a circuit of another magnetic induction type on-load switch gear remote control adjustment device provided by an embodiment of the present invention;

[0029] Figure 6 This is a structural diagram of another magnetic induction type on-load switch gear remote control adjustment device provided by an embodiment of the present invention;

[0030] Figure 7 This is a schematic diagram of the structure of a circuit of another magnetic induction type on-load switch gear remote control adjustment device provided by an embodiment of the present invention;

[0031] Figure 8 1 is a schematic structural diagram of a remote controller provided by an embodiment of the present invention;

[0032] Figure 9 It is a structural diagram of another remote controller provided by an embodiment of the present invention.

[0033] In the picture:

[0034] Magnetic field generating unit 1, first electromagnet 11, second electromagnet 12, first coil 1101, second coil 1201, magnetic field sensing unit 2, on-load switch adjustment knob 21, permanent magnet 22, switch unit 3, single-pole double-throw switch 31, power supply unit 4, first battery 41, second battery 42, signal receiving unit 5, decoding unit 51, carrier 6, remote controller 7, input unit 71, encoding unit 72, transmitting unit 73, gear position button panel 8, infrared signal generator 9, display screen 10, power button 11. DETAILED DESCRIPTION

[0035] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It will be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all structures.

[0036] An embodiment of the present invention provides a magnetic induction type on-load switch gear remote control adjustment device, which can be used for cyclic adjustment, up and down gear adjustment, etc. of the on-load switch when testing power equipment such as transformers. Figure 1This is a structural diagram of a magnetic induction type on-load switch gear remote control adjustment device provided by an embodiment of the present invention. Figure 2 This is a schematic diagram of the circuit structure of a magnetic induction type on-load switch gear remote control adjustment device provided by an embodiment of the present invention, see Figure 1 and Figure 2 , the regulating device includes:

[0037] A magnetic field generating unit 1, a magnetic field sensing unit 2, a switching unit 3, a power supply unit 4 and a signal receiving unit 5; the signal receiving unit 5 is used to receive a command signal and form at least one control signal according to the command signal; the switching unit 3 is connected to the signal receiving unit 5 and the power supply unit 4, the magnetic field generating unit 1 is connected to the power supply unit 4, the switching unit 3 is used to connect the power supply unit 4 and the magnetic field generating unit 1 according to the control signal, and the power supply unit 4 is used to provide a positive direction electrical signal or a negative direction electrical signal to the magnetic field generating unit 1; the magnetic field generating unit 1 is used to generate a magnetic field in a first rotation direction or a second rotation direction according to the direction of the electrical signal; the magnetic field sensing unit 2 is arranged in the magnetic field and is fixedly connected to the on-load switch adjustment knob; the magnetic field sensing unit 2 is used to drive the on-load switch adjustment knob 21 to rotate according to changes in the magnetic field; wherein the first rotation direction and the second rotation direction are opposite.

[0038] Specifically, the command signal is sent by a remote signal generator, which can be a remote control; the control signal is obtained by the signal receiving unit 5 by decoding the command signal, and at least one control signal can contain multiple upshift and downshift information instructions, that is, multiple adjustment times; the magnetic field sensing unit 2 can be an electromagnet with an N-level upper end and an S-level lower end. The magnetic field sensing unit 2 is fixedly connected to the load switch adjustment knob 21, and the load switch adjustment knob 21 is driven to rotate together by the magnetic field sensing unit 2; the first rotation direction and the second rotation direction are opposite, and it can be that when the power supply unit 4 provides an electrical signal in the positive direction, it indicates that the instruction is to upshift, the magnetic field generating unit 1 generates a magnetic field in the first rotation direction, and the magnetic field sensing unit 2 rotates clockwise. When the power supply unit 4 provides an electrical signal in the negative direction, it indicates that the instruction is to downshift, the magnetic field generating unit 1 generates a magnetic field in the second rotation direction, and the magnetic field sensing unit 2 rotates counterclockwise.

[0039] Specifically, based on operational needs, the remote control sends a gear adjustment command signal to the signal receiving unit 5. The signal receiving unit 5 generates at least one control signal based on the command signal. When the control signal is transmitted to the switch unit 3, the switch unit 3 is controlled to connect the power supply unit 4 and the magnetic field generating unit 1, so that the power supply unit 4 provides an electrical signal to the magnetic field generating unit 1. When the direction of the electrical signal is positive, the magnetic field generating unit 1 generates a magnetic field in a first rotational direction, and the magnetic field sensing unit 2 is located within the magnetic field. Under the influence of the magnetic field in the first rotational direction, the magnetic field sensing unit 2 rotates in the first direction, driving the load switch adjustment knob 21 to rotate in the first direction. When the direction of the electrical signal is negative, the magnetic field generating unit 1 generates a magnetic field in a second rotational direction, and the magnetic field sensing unit 2 is located within the magnetic field. Under the influence of the magnetic field in the second rotational direction, the magnetic field sensing unit 2 rotates in the second direction, driving the load switch adjustment knob 21 to rotate in the second direction. The first rotational direction and the second rotational direction are opposite, so that the first direction and the second direction are opposite. For example, the first direction can be clockwise, and the second direction can be counterclockwise. Thereby, the magnetic field induction unit 2 can drive the load switch adjustment knob 21 to rotate in different directions. When the load switch adjustment knob 21 rotates, different rotation directions correspond to different gear adjustments. For example, when the load switch adjustment knob 21 rotates in a first direction, it can represent that the load switch adjustment knob 21 is shifted up, and when the load switch adjustment knob 21 rotates in a second direction, it can represent that the load switch adjustment knob 21 is shifted down. In this way, the magnetic induction load switch gear remote control adjustment device can realize automatic adjustment of the load switch gear according to the command signal, reducing manual repetitive work and reducing the error rate. Moreover, it can reduce the transformer power outage pre-test time, improve the test efficiency, and thus improve the power supply reliability of the power system.

[0040] After completing the gear adjustment according to one control signal, when the signal receiving unit 5 forms multiple control signals according to the instruction signal, the magnetic induction on-load switch gear remote control adjustment device can repeat the above process according to the next control signal until all control signals are executed, thereby realizing multiple gear adjustments of the on-load switch, which will not be repeated here.

[0041] It should be noted that it takes a certain amount of time to complete a gear adjustment in response to a single control signal. For example, after the on-load switch adjustment knob 21 is rotated in response to a single control signal, a certain amount of time must pass before the next gear adjustment operation can be performed. For example, the interval can be set to 10 seconds. After the on-load switch adjustment knob 21 is rotated, the mechanical structure within the mechanism operated by the on-load switch adjustment knob 21 must rotate several dozen times to complete the adjustment of one gear. The maximum time required to complete a gear adjustment is approximately 10 seconds. The 10-second wait is for the gear mechanical structure to complete the adjustment. If the knob is rotated again before the gear adjustment is complete, the next gear adjustment operation will not be triggered.

[0042] The technical solution of the embodiment of the present invention obtains a command signal through a signal receiving unit to form a control signal. The switch unit connects the power supply unit and the magnetic field generating unit according to the control signal, causing the power supply unit to generate a positive or negative electrical signal. The magnetic field generating unit generates a corresponding magnetic field according to the direction of the electrical signal. The magnetic field sensing unit drives the load switch adjustment knob to rotate according to the change in the magnetic field direction. This realizes that the magnetic induction load switch gear remote control adjustment device automatically adjusts the load switch gear according to the command signal, reducing manual repetitive work and lowering the error rate. In addition, it can reduce the transformer power outage pre-test time, improve test efficiency, and thus improve the power supply reliability of the power system.

[0043] Figure 3 This is a structural diagram of another magnetic induction type on-load switch gear remote control adjustment device provided by an embodiment of the present invention, see Figure 3 and Figure 2 Optionally, the magnetic field generating unit 1 includes a first electromagnet 11 and a second electromagnet 12; the first electromagnet 11 includes a first iron core and a first coil 1101, and the first coil 1101 is wound on the first iron core; the second electromagnet 12 includes a second iron core and a second coil 1201, and the second coil 1201 is wound on the second iron core; the winding direction of the first coil 1101 is opposite to the winding direction of the second coil 1201, the starting point of the first coil 1101 and the starting point of the second coil 1201 are both connected to the first end of the power supply unit 4, the second end of the power supply unit 4 is connected to the second end of the switch unit 3, and the third end of the power supply unit 4 is connected to the third end of the switch unit 3, and the end point of the first coil 1101 and the end point of the second coil 1201 are both connected to the first end of the switch unit 3 through the signal receiving unit 5; the switch unit 3 is used to connect the first end of the switch unit 3 with the second end of the switch unit 3, or connect the first end of the switch unit 3 with the third end of the switch unit 3 according to the control signal.

[0044] Specifically, the first electromagnet 11 and the second electromagnet 12 can be located on either side of the magnetic field sensing unit 2 to generate a magnetic field. By winding the first coil 1101 and the second coil 1201 around the first electromagnet 11 and the second electromagnet 12 and applying power, the first electromagnet 11 and the second electromagnet 12 can be made magnetic according to the principle of magnetic induction, thereby attracting the magnetic field sensing unit 2 located in the middle and driving the load switch adjustment knob 21 to rotate. The first iron core and the second iron core are easily magnetized, which is used to enhance the magnetism of the electromagnet and increase the attraction to the magnetic field sensing unit 2. The electromagnet and the electromagnet core can be considered as a whole, that is, an electromagnet with an iron core.

[0045] Specifically, according to working needs, the remote control is controlled to send a command signal for adjusting the gear position to the signal receiving unit 5. The signal receiving unit 5 generates at least one control signal based on the command signal. When the control signal is transmitted to the switch unit 3, the switch unit 3 can be controlled to connect the power supply unit 4 and the magnetic field generating unit 1, so that the power supply unit 4 can provide an electrical signal to the magnetic field generating unit 1. The magnetic field sensing unit 2 can be an electromagnet with an N-pole at the upper end and an S-pole at the lower end. When the direction of the electrical signal is positive, the upper end of the first electromagnet 11 and the lower end of the second electromagnet 12 are N-poles, and the lower end of the first electromagnet 11 and the upper end of the second electromagnet 12 are S-poles. The magnetic field generating unit 1 can generate a magnetic field in a first rotational direction. The magnetic field sensing unit 2 can rotate in the first direction under the action of the magnetic field in the first rotational direction, and drive the load switch adjustment knob 21 to rotate in the first direction. When the direction of the electrical signal is negative, the lower end of the first electromagnet 11 and the upper end of the second electromagnet 12 are N poles, and the upper end of the first electromagnet 11 and the lower end of the second electromagnet 12 are S poles. The magnetic field generating unit 1 can generate a magnetic field in the second rotation direction, and the attractive magnetic field sensing unit 2 can rotate in the second direction under the action of the magnetic field in the second rotation direction, and drive the on-load switch adjustment knob 21 to rotate in the second direction.

[0046] Figure 4 This is a schematic diagram of the circuit structure of another magnetic induction type on-load switch gear remote control adjustment device provided by an embodiment of the present invention, see Figure 4 Optionally, the power supply unit 4 includes a first battery 41 and a second battery 42; the positive electrode of the first battery 41 and the negative electrode of the second battery 42 serve as the first end of the power supply unit 4, the negative electrode of the first battery 41 serves as the second end of the power supply unit 4, and the positive electrode of the second battery 42 serves as the third end of the power supply unit 4.

[0047] Specifically, the first battery 41 and the second battery 42 are used to provide electrical energy to energize the first coil 1101 and the second coil 1201, so that the first electromagnet 11 and the second electromagnet 12 generate a magnetic field. When the switch unit 3 is connected to the first battery 41, the battery unit 4 provides a positive electrical signal. When the switch unit 3 is connected to the second battery 42, the battery unit 4 provides a negative electrical signal. For example, the first battery 41 and the second battery 42 can be dry cells or battery packs.

[0048] Specifically, the remote control is controlled to transmit a gear adjustment command signal to the signal receiving unit 5 according to working needs. The signal receiving unit 5 generates at least one control signal based on the command signal. When the control signal is transmitted to the switch unit 3, the switch unit 3 is controlled to connect to the power supply unit 4 and the magnetic field generating unit 1, so that the power supply unit 4 provides an electrical signal to the magnetic field generating unit 1. When the control signal is to shift up, the switch unit 3 is connected to the first battery 41, so that the direction of the electrical signal is positive, and the first coil 1101 and the second coil 1201 are positively energized, so that the magnetic field generating unit 1 can generate a magnetic field in the first rotational direction. Under the action of the magnetic field in the first rotational direction, the magnetic field sensing unit 2 can rotate in the first direction, and the load switch adjustment knob 21 can also rotate in the first direction. When the control signal is to downshift, the switch unit 3 is connected to the second battery 42, so that the direction of the electrical signal is negative, and the first coil 1101 and the second coil 1201 are negatively charged, so that the magnetic field generating unit 1 can generate a magnetic field in the second rotation direction, and the attractive magnetic field sensing unit 2 can rotate in the second direction under the action of the magnetic field in the second rotation direction, and drive the on-load switch adjustment knob 21 to rotate in the second direction.

[0049] Figure 5 This is a schematic diagram of the circuit structure of another magnetic induction type on-load switch gear remote control adjustment device provided by an embodiment of the present invention, see Figure 5 Optionally, the switch unit 3 includes a single-pole double-throw switch 31; the fixed end of the single-pole double-throw switch 31 serves as the first end of the switch unit 3, the first moving end of the single-pole double-throw switch 31 serves as the second end of the switch unit 3, and the second moving end of the single-pole double-throw switch 31 serves as the third end of the switch unit 3.

[0050] Specifically, the single-pole double-throw switch 31 is used to connect different batteries according to the control signal of upshifting or downshifting, so that the batteries generate electrical signals in different directions.

[0051] Figure 6 This is a structural diagram of another magnetic induction type on-load switch gear remote control adjustment device provided by an embodiment of the present invention, see Figure 6Optionally, the magnetic field induction unit 2 includes a permanent magnet 22; the first electromagnet 11 and the second electromagnet 12 are arranged along the first direction and extend along the second direction; the permanent magnet 22 is arranged between the first electromagnet 11 and the second electromagnet 12 and extends along the second direction; wherein the first direction and the second direction are orthogonal to each other.

[0052] Specifically, a permanent magnet is a magnet that can maintain its magnetism for a long time and, when influenced by a magnetic field, can rotate clockwise or counterclockwise about point O. When the coil is energized, a magnetic field is generated, causing the permanent magnet 22 to rotate the on-load tap adjustment knob 21. When the coil is de-energized, the magnetic field disappears, causing the permanent magnet 22 to automatically return the on-load tap adjustment knob 21 to its center position.

[0053] Continue to see Figure 6 Optionally, the magnetic induction on-load switch gear remote control adjustment device further includes a carrier 6, and the permanent magnet 22 is arranged on the carrier 6; the geometric center of the permanent magnet 22 is rotatably connected to the carrier 6.

[0054] Specifically, the carrier 6 serves as the outer shell of the device, and is used to fix and install components such as the magnetic field generating unit 1, and is rotatably connected to the permanent magnet 22. The rotatable connection can be a center hinge. Hinge means connected with a hinge. The two hinged objects cannot be separated, but the two objects can have conditional relative movement, that is, the permanent magnet 22 can rotate relative to the carrier 6; the permanent magnet 22 is fixedly connected to the adjustment knob 21, and can drive the load switch adjustment knob 21 to rotate to achieve automatic gear adjustment.

[0055] Figure 7 This is a schematic diagram of the circuit structure of another magnetic induction type on-load switch gear remote control adjustment device provided by an embodiment of the present invention, see Figure 7 Optionally, the signal receiving unit 5 includes a decoding unit 51, which is used to decode the instruction signal to form a control signal.

[0056] Specifically, the command signal may be infrared encoded before being sent to the signal receiving unit 5 , and the decoding unit 51 decodes the encoded command signal to form a control signal, connects the circuit according to the control signal, drives the knob to rotate, and adjusts the gear position.

[0057] Optionally, the command signal includes the gear adjustment direction and the number of gear adjustments. The number of control signals formed by the signal receiving unit 5 according to the command signal is the same as the number of gear adjustments. The direction of the electrical signal provided by the power supply unit 4 is set corresponding to the gear adjustment direction.

[0058] Specifically, the gear adjustment direction may include upshifting or downshifting, i.e., clockwise rotation or counterclockwise rotation, and the gear adjustment number may be the number of upshifts or downshifts required for the current gear to reach the target gear. For example, if the current gear is 1st gear and the target gear is 8th gear, 7 upshifts are required, and the signal receiving unit 5 decodes the instruction signal to form a control signal for 7 clockwise rotations.

[0059] An embodiment of the present invention also provides a magnetic induction on-load switch gear remote control adjustment system, which includes: a remote controller and a magnetic induction on-load switch gear remote control adjustment device provided by any embodiment of the present invention; the remote controller is communicatively connected to the signal receiving unit 5 of the magnetic induction on-load switch gear remote control adjustment device, and the remote controller is used to send command signals according to user instructions.

[0060] Specifically, the remote controller is used to send a command signal for adjusting the gear position to the signal receiving unit 5 according to work needs. First, the on-load tap changer of the tested transformer is adjusted to gear 1, the remote controller is turned on, the remote controller is controlled to reset to gear 1, and the magnetic induction gear adjustment device is placed outside the on-load switch adjustment knob 21; the gear button of the remote controller is pressed as needed, and the remote controller converts the key information into the number of up / down shifts, and infrared encodes the up / down shift information, and transmits the encoded command signal to the signal receiving unit 5; the signal receiving unit 5 forms at least one control signal according to the command signal, and when the control signal is transmitted to the switch unit 3, the switch unit 3 can be controlled to connect to the power supply unit 4 and the magnetic field generating unit 1, so that the power supply unit 4 can provide an electrical signal to the magnetic field generating unit 1; the magnetic field sensing unit 2 can be an electromagnet with an N-pole at the upper end and an S-pole at the lower end. When the control signal is to shift up, the switch unit 3 is connected to the first battery 41, so that the direction of the electrical signal is positive, and the first coil 1101 and the second coil 1201 are positively energized, the upper end of the first electromagnet 11 and the lower end of the second electromagnet 12 are N poles, and the lower end of the first electromagnet 11 and the second electromagnet 12 are N poles. The upper end of the electromagnet 12 is the S pole, the magnetic field generating unit 1 can generate a magnetic field in the first rotation direction, the attractive magnetic field sensing unit 2 can rotate in the first direction under the action of the magnetic field in the first rotation direction, and drive the load switch adjustment knob 21 to rotate in the first direction; when the control signal is to downshift, the switch unit 3 is connected to the second battery 42, so that the direction of the electric signal is negative, and the first coil 1101 and the second coil 1201 are negatively charged, the lower end of the first electromagnet 11 and the upper end of the second electromagnet 12 are N poles, and the first electromagnet 11 is The upper end and the lower end of the second electromagnet 12 are S poles. The magnetic field generating unit 1 can generate a magnetic field in the second rotation direction. The magnetic field induction unit 2 can rotate in the second direction under the action of the magnetic field in the second rotation direction, and drive the load switch adjustment knob 21 to rotate in the second direction. After 1 to 2 seconds of power-on, the magnet loses power and demagnetizes, and the knob automatically returns to the center position. If multiple up / downshifts are required, the above process is repeated every 10 seconds according to the next control signal until the set gear is reached, thereby achieving multiple adjustments to the load switch gear. In this way, the magnetic induction load switch gear remote control adjustment device can automatically adjust the load switch gear according to the command signal, reducing manual repetitive work and lowering the error rate. In addition, it can reduce the transformer power outage pre-test time, improve test efficiency, and thus improve the power supply reliability of the power system.

[0061] For example, Figure 8 This is a schematic diagram of the structure of a remote controller provided by an embodiment of the present invention, see Figure 8Optionally, the remote controller includes an input unit 71, an encoding unit 72 and a transmitting unit 73; the input unit 71 is used to input user instructions; the encoding unit 72 is connected to the input unit 71, and the encoding unit 72 is used to form an instruction signal according to the user instruction and encode the instruction signal; the transmitting unit 73 is connected to the encoding unit 72, and the transmitting unit 73 is used to transmit the instruction signal.

[0062] Furthermore, Figure 9 This is a schematic diagram of the structure of another remote controller provided by an embodiment of the present invention. Figure 9 The input unit 71 of the remote controller 7 may include a gear position button panel 8, which is used to control the remote controller 7's buttons to generate shift times and reset information. The encoding unit 72 may include a built-in chip in the remote controller's transmission circuit, which is used to infrared encode control commands. The transmitting unit 73 may include an infrared signal generator 9, which is used to transmit the infrared-encoded signal. The remote controller 7 may also include a display screen 10, a power button 11, etc. The display screen 10 is used to display the current gear position in real time, and the power button 11 is used to control the remote controller 7 to turn on and off.

[0063] The technical solution of the embodiment of the present invention controls the remote controller to generate a command signal and sends it to the signal receiving unit. The signal receiving unit obtains the command signal to form a control signal. According to the control signal, the power supply unit and the magnetic field generating unit are connected to generate a positive direction electric signal or a negative direction electric signal in the circuit. The magnetic field generating unit generates a magnetic field with different magnetic properties according to the direction of the electric signal. The magnetic field sensing unit drives the permanent magnet to rotate in different directions according to the change in the direction of the magnetic field, thereby driving the load switch adjustment knob to rotate, realizing remote automatic adjustment of the load switch up and down gears, reducing manual work, reducing the error rate, and improving test efficiency.

[0064] Note that the above are only preferred embodiments of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments, and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments and may include many other equivalent embodiments without departing from the concept of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. A magnetic induction type on-load switch gear remote control adjustment device, characterized in that: It includes a magnetic field generating unit, a magnetic field sensing unit, a switching unit, a power supply unit and a signal receiving unit; The signal receiving unit is used to receive an instruction signal and form at least one control signal according to the instruction signal; the switching unit is connected to the signal receiving unit and the power supply unit, and the magnetic field generating unit is connected to the power supply unit. The switching unit is used to connect the power supply unit and the magnetic field generating unit according to the control signal, and the power supply unit is used to provide the magnetic field generating unit with an electrical signal in a positive direction or an electrical signal in a negative direction; the magnetic field generating unit is used to generate a magnetic field in a first rotation direction or a magnetic field in a second rotation direction according to the direction of the electrical signal; the magnetic field sensing unit is arranged in the magnetic field and is fixedly connected to the on-load switch adjustment knob; the magnetic field sensing unit is used to drive the on-load switch adjustment knob to rotate according to the change of the magnetic field; wherein, the first rotation direction and the second rotation direction are opposite.

2. The magnetic induction on-load tap changer position remote control adjustment device according to claim 1, characterized in that: The magnetic field generating unit includes a first electromagnet and a second electromagnet; The first electromagnet includes a first iron core and a first coil, and the first coil is wound on the first iron core; the second electromagnet includes a second iron core and a second coil, and the second coil is wound on the second iron core; the winding direction of the first coil is opposite to the winding direction of the second coil, the starting point of the first coil and the starting point of the second coil are both connected to the first end of the power supply unit, the second end of the power supply unit is connected to the second end of the switch unit, the third end of the power supply unit is connected to the third end of the switch unit, and the end point of the first coil and the end point of the second coil are both connected to the first end of the switch unit through the signal receiving unit; the switch unit is used to connect the first end of the switch unit with the second end of the switch unit, or connect the first end of the switch unit with the third end of the switch unit according to the control signal.

3. The magnetic induction type on-load tap changer position remote control adjustment device according to claim 2, characterized in that: The power supply unit includes a first battery and a second battery; The positive electrode of the first battery and the negative electrode of the second battery serve as the first end of the power supply unit, the negative electrode of the first battery serves as the second end of the power supply unit, and the positive electrode of the second battery serves as the third end of the power supply unit.

4. The magnetic induction on-load tap changer position remote control adjustment device according to claim 2 or 3, characterized in that: The switch unit includes a single-pole double-throw switch; The fixed end of the single-pole double-throw switch serves as the first end of the switch unit, the first movable end of the single-pole double-throw switch serves as the second end of the switch unit, and the second movable end of the single-pole double-throw switch serves as the third end of the switch unit.

5. The magnetic induction type on-load tap changer position remote control adjustment device according to claim 2, characterized in that: The magnetic field induction unit includes a permanent magnet; the first electromagnet and the second electromagnet are arranged along a first direction and extend along a second direction; the permanent magnet is arranged between the first electromagnet and the second electromagnet and extends along the second direction; wherein the first direction and the second direction are orthogonal to each other.

6. The magnetic induction type on-load tap changer position remote control adjustment device according to claim 5, characterized in that: It also includes a carrier, on which the permanent magnet is arranged; and the geometric center of the permanent magnet is rotatably connected to the carrier.

7. The magnetic induction on-load tap changer position remote control adjustment device according to claim 1, characterized in that: The signal receiving unit includes a decoding unit, and the decoding unit is used to decode the instruction signal to form the control signal.

8. The magnetic induction on-load tap changer position remote control adjustment device according to claim 1, characterized in that: The command signal includes a gear adjustment direction and a gear adjustment number. The number of control signals formed by the signal receiving unit according to the command signal is the same as the gear adjustment number. The direction of the electrical signal provided by the power supply unit is set corresponding to the gear adjustment direction.

9. A magnetic induction type on-load switch gear remote control adjustment system, characterized in that: It comprises a remote controller and the magnetic induction type on-load switch gear remote control adjustment device according to any one of claims 1 to 8; The remote controller is communicatively connected to the signal receiving unit of the magnetic induction type on-load switch gear remote control adjustment device, and the remote controller is used to send a command signal according to a user command.

10. The magnetic induction on-load tap changer position remote control adjustment system according to claim 9, characterized in that: The remote controller includes an input unit, an encoding unit and a transmitting unit; The input unit is used to input the user instruction; the encoding unit is connected to the input unit, and the encoding unit is used to form the instruction signal according to the user instruction and encode the instruction signal; The transmitting unit is connected to the encoding unit, and the transmitting unit is used to transmit the instruction signal.

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