High-voltage grid power transmission signal sensor

Abstract

The utility model discloses a high-voltage grid power transmission signal sensor, and relates to the field of electronic components. The device is used for collecting a low-voltage power supply on a high-voltage line and detecting and collecting the phenomena of over-voltage, under-voltage, over-current, low-current, cut-off and the like of the high-voltage line in the electric energy transmission process, so that the working efficiency of electric energy transmission of a power grid is improved. Comprising a high-voltage silicon rubber case which is used for embedding a high-voltage wire into the high-voltage silicon rubber case from a center joint of the high-voltage silicon rubber case and sealing the center joint with sealing silica gel; the O-shaped closed iron core whole body comprises a first U-shaped iron core and a second U-shaped iron core, the first U-shaped iron core and the second U-shaped iron core are in butt joint to form the O-shaped closed iron core whole body, and the high-voltage silicon rubber case penetrates through the O-shaped closed iron core whole body; and one end of the signal comparator is electrically connected with a coil arranged on the second U-shaped iron core of the O-shaped closed iron core whole body, and the other end of the signal comparator is electrically connected with the remote controller.

Description

Technical Field

[0001] The utility model relates to the field of electronic components, and more specifically to a high-voltage power grid transmission signal sensor. Background Art

[0002] Ceramic capacitors are generally disc-shaped or cylindrical in structure. They are formed and sintered with ceramic materials as the medium, and then a conductive layer is coated on both ends. Metal electrodes are installed on the conductive layer. The metal electrodes serve as the lead-out ends of the ceramic capacitors for external circuit connection. High-voltage ceramic capacitors are generally used in the power industry or the military industry, and can play the role of metering, voltage division, voltage reduction, energy storage, and wave guiding. This type of ceramic capacitor has excellent electrical properties and can well realize the flow of AC current without changing the waveform. In the power grid power transmission system, the AC waveform is an important parameter. Sampling the AC wave can obtain direct parameters of the power transmission quality. Utility Model Content

[0003] The embodiment of the utility model provides a high-voltage power grid transmission signal sensor, which is used to collect low-voltage power on the high-voltage line and detect and collect overvoltage, undervoltage, overcurrent, low current, and interruption of current generated by the high-voltage line during the power transmission process, so as to improve the working efficiency of power transmission in the power grid.

[0004] The present invention provides a high-voltage power grid transmission signal sensor, comprising:

[0005] A high-voltage silicone sleeve, which is used to embed the high-voltage wire into the high-voltage silicone sleeve from the middle seam of the high-voltage silicone sleeve, and seal the middle seam with sealing silicone;

[0006] The O-shaped closed iron core as a whole comprises a first U-shaped iron core and a second U-shaped iron core, wherein the first U-shaped iron core and the second U-shaped iron core are connected to form an O-shaped closed iron core as a whole, and the high-voltage silicone sleeve runs through the O-shaped closed iron core as a whole;

[0007] The signal comparator has one end electrically connected to a coil arranged on the second U-shaped iron core of the O-shaped closed iron core unit, and the other end electrically connected to a remote controller.

[0008] Preferably, it also includes a high-voltage capacitor, a sampling capacitor and a voltage-dividing capacitor;

[0009] One end of the high-voltage capacitor is electrically connected to the coil, and the other end is connected in series with a voltage-dividing capacitor and a sampling capacitor;

[0010] One end of the voltage-dividing capacitor close to the high-voltage capacitor is electrically connected in parallel with the sampling power supply end, and one end close to the sampling capacitor is electrically connected in parallel with the sampling signal end;

[0011] One end of the sampling capacitor away from the voltage-dividing capacitor and the other end of the coil are both electrically connected to the virtual ground line.

[0012] Preferably, it also includes a fixed resistor and an adjustable resistor;

[0013] The fixed resistor and the adjustable resistor are connected in series, one end of which is electrically connected in parallel with the sampling signal end, and the other end of which is electrically connected with the virtual ground line.

[0014] The embodiment of the utility model provides a high-voltage power grid transmission signal sensor including: a high-voltage silicone sleeve, which is used to embed the high-voltage wire into the high-voltage silicone sleeve from the middle seam of the high-voltage silicone sleeve, and seal the middle seam with sealing silicone; an O-shaped closed iron core integral body, which includes a first U-shaped iron core and a second U-shaped iron core, the first U-shaped iron core and the second U-shaped iron core are connected to form an O-shaped closed iron core integral body, and the high-voltage silicone sleeve penetrates the O-shaped closed iron core integral body; a signal comparator, one end of which is electrically connected to a coil arranged on the second U-shaped iron core included in the O-shaped closed iron core integral body, and the other end is electrically connected to a remote controller. The sensor can be installed on the high-voltage line of a high-voltage power grid that has been put into operation or on the high-voltage line of a high-voltage power grid that is under construction. It can collect low-voltage power supply from the high-voltage line of the operating power grid during the power transmission process and collect overvoltage, undervoltage, overcurrent, low current (leakage), interruption and other phenomena generated by the high-voltage line during the power transmission process, and transmit them to the high-voltage power transmission power control department through remote transmission to instantly make corrections and compensation. It is a new way to detect the safe operation of the power transmission of the high-voltage line under construction and a new way to detect the subsequent safe operation of the power transmission of the original high-voltage line. Furthermore, the sensor does not need to add series and parallel branches and add terminals to the original high-voltage line. It is directly installed on the existing high-voltage line, saving the cost of adding special series and parallel branches for collecting high-voltage power transmission signals and installing high-voltage terminals required for adding branches of transformers for collecting high-voltage power transmission signals. The sensor can save installation costs, simplify the work process, and improve work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 A schematic diagram of the structure of a high-voltage power grid transmission signal sensor is provided for an embodiment of the utility model;

[0017] Figure 2A schematic diagram of the basic principle of a high-voltage power grid transmission signal sensor is provided for the embodiment of the utility model;

[0018] Among them, there are a high-voltage silicone sleeve 10, a signal comparator 30, an O-type closed iron core as a whole 20, a remote controller 40, a high-voltage line 101, a coil 201, a high-voltage capacitor 301, a voltage-dividing capacitor 302, a sampling capacitor 303, an adjustable resistor 401, a fixed resistor 402, a sampling power supply terminal 501, a sampling signal terminal 502, and a virtual ground wire 503. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Figure 1 A schematic diagram of the structure of a high-voltage power grid transmission signal sensor is provided for an embodiment of the utility model; Figure 2 The utility model provides a schematic diagram of the basic principle of the high-voltage power grid transmission signal sensor; Figure 1-2 Taking the example, the high-voltage power grid transmission signal sensor provided by the embodiment of the utility model is introduced in detail.

[0021] The high-voltage power grid transmission signal sensor provided by the embodiment of the utility model mainly comprises: a high-voltage silicone sleeve 10 , an O-shaped closed iron core as a whole 20 and a signal comparator 30 .

[0022] Specifically, the high-voltage silicone sleeve 10 is used to embed the high-voltage wire 101 into the high-voltage silicone sleeve 10 from the middle seam of the high-voltage silicone sleeve 10, and seal the middle seam with sealing silicone; in this embodiment, by embedding the high-voltage wire 101 into the high-voltage silicone sleeve 10, the high-voltage silicone sleeve 10 can insulate the exposed wire, prevent the high-voltage wire 101 from discharging to other electrical components, and protect other electrical components from being damaged by high voltage breakdown.

[0023] Furthermore, the high-voltage power grid transmission signal sensor includes an O-shaped closed core as a whole 20, and the O-shaped closed core as a whole 20 includes two, namely a first U-shaped core and a second U-shaped core. Specifically, the first U-shaped core is the upper half of the O-shaped closed core cut open, and the second U-shaped core is the lower half of the O-shaped closed core cut open; when the first U-shaped core and the second U-shaped core are connected and closed to form a whole, they are sheathed on the high-voltage silicone sleeve 10, wherein the high-voltage silicone sleeve 10 has sealed the high-voltage wire 101 inside.

[0024] In the embodiment of the utility model, the first U-shaped iron core and the second U-shaped iron core form a closed O-shaped closed iron core body 20 , which is enclosed around the high-voltage wire 101 to provide an electromagnetic induction magnetic path for the electric field around the high-voltage wire 101 .

[0025] Furthermore, a coil 201 is wound around the second U-shaped iron core, and the coil 201 generates a high-voltage induced current under the action of the magnetic flux of the closed O-shaped closed iron core as a whole 20 .

[0026] Specifically, the two outgoing lines of the coil 201 are divided into a high-voltage end and a virtual ground end, and a high-voltage capacitor 301, a voltage-dividing capacitor 302 and a sampling capacitor 303 are connected in series at both ends of the high-voltage end and the virtual ground end, wherein one end of the high-voltage capacitor 301 is electrically connected to the coil, and the other end is connected in series with the voltage-dividing capacitor 302 and the sampling capacitor 303 in sequence; one end of the voltage-dividing capacitor 302 close to the high-voltage capacitor 301 is electrically connected in parallel to the sampling power supply end 501, and one end close to the sampling capacitor is electrically connected in parallel to the sampling signal end 502; one end of the sampling capacitor 303 far from the voltage-dividing capacitor 302 and the other end of the coil are both electrically connected to the virtual ground line 503.

[0027] Furthermore, it also includes a fixed resistor 402 and an adjustable resistor 401 connected in parallel with the sampling capacitor 303, wherein the fixed resistor 402 and the adjustable resistor 401 are connected in series, one end of the fixed resistor 402 is electrically connected to the sampling signal end 502, and the other end is electrically connected to the virtual ground line 503. In the utility model, the power of the fixed resistor 402 and the adjustable resistor 401 are both 3 watts, and the value of the fixed resistor 402 is 500 ohms.

[0028] In the embodiment of the utility model, a high-voltage capacitor 301 connected in series is used to divide and reduce the voltage of the high-voltage induced current generated in the coil 201, and a suitable low-voltage power supply is derived therefrom, wherein the low-voltage power supply may include 220v, 110v, 36v, 27v, etc.

[0029] Furthermore, a low voltage current signal having the same waveform as the high voltage wire 101 after being stepped down by the high voltage capacitor 301 and the voltage dividing capacitor 302 is drawn from the series-connected low voltage sampling capacitor 303. The low voltage current signal having the same waveform as the high voltage wire 101 is shunted by adjusting the parallel-connected fixed resistor 402 and the adjustable resistor 401, and the current and waveform of the suitable current signal are input into the signal comparator 30 to be compared with the current and waveform of the standard high voltage electrical signal stored in the signal comparator 30 at the same reduction ratio.

[0030] In the embodiment of the utility model, the signal comparator 30 transmits the result of the comparison between the sampled signal and the standard signal to the remote controller 40 for remote transmission. The remote controller 40 performs instantaneous correction compensation on the high voltage electricity based on the signal fed back by the signal comparator 30. The sensor is a new way to detect the safe operation of the high voltage power line 101 power grid transmission power under construction and after it has been built and put into operation.

[0031] The embodiment of the utility model provides a high-voltage power grid transmission signal sensor including: a high-voltage silicone sleeve, which is used to embed the high-voltage wire into the high-voltage silicone sleeve from the middle seam of the high-voltage silicone sleeve, and seal the middle seam with sealing silicone; an O-shaped closed iron core integral body, which includes a first U-shaped iron core and a second U-shaped iron core, the first U-shaped iron core and the second U-shaped iron core are connected to form an O-shaped closed iron core integral body, and the high-voltage silicone sleeve penetrates the O-shaped closed iron core integral body; a signal comparator, one end of which is electrically connected to a coil arranged on the second U-shaped iron core of the O-shaped closed iron core integral body, and the other end is electrically connected to a remote controller. The sensor can be installed on the high-voltage line of the high-voltage power grid under construction and can be installed on the high-voltage line of the high-voltage power grid that has been put into operation. It can collect low-voltage power supply during the power transmission process of the high-voltage line of the operating power grid and collect the overvoltage, undervoltage, overcurrent, low current (leakage), and interruption of current generated by the high-voltage line during the power transmission process, and transmit it to the high-voltage power transmission power control department through remote transmission to instantly make corrections and compensation. It is a new way to install the high-voltage line of the high-voltage power grid under construction and the subsequent installation of the high-voltage line of the original high-voltage line for safe operation detection. Furthermore, the sensor does not need to add series and parallel branches and add terminals to the original high-voltage line. It is directly installed on the existing high-voltage line, saving the cost of adding special series and parallel branches for collecting high-voltage transmission power signals and installing high-voltage terminals required for adding branches of transformers for collecting high-voltage transmission power signals. The sensor can save installation costs, simplify the work process, and improve work efficiency.

[0032] Although the preferred embodiments of the present invention have been described, once the basic creative concept is known to those skilled in the art, the electrical components of the schematic diagrams of these embodiments may be deleted or other electrical components may be introduced to make additional series-parallel and mixed changes and modifications. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present invention.

[0033] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A high voltage power grid transmission signal sensor, characterized in that: include: A high-voltage silicone sleeve, which is used to embed the high-voltage wire into the high-voltage silicone sleeve from the middle seam of the high-voltage silicone sleeve, and seal the middle seam with sealing silicone; The O-shaped closed iron core as a whole comprises a first U-shaped iron core and a second U-shaped iron core, wherein the first U-shaped iron core and the second U-shaped iron core are connected to form an O-shaped closed iron core as a whole, and the high-voltage silicone sleeve runs through the O-shaped closed iron core as a whole; The signal comparator has one end electrically connected to a coil arranged on a second U-shaped iron core included in the O-shaped closed iron core as a whole, and the other end electrically connected to a remote controller.

2. The high-voltage power grid transmission signal sensor according to claim 1, characterized in that: It also includes high-voltage capacitors, sampling capacitors and voltage-dividing capacitors; One end of the high-voltage capacitor is electrically connected to the coil, and the other end is connected in series with a voltage-dividing capacitor and a sampling capacitor; One end of the voltage-dividing capacitor close to the high-voltage capacitor is electrically connected in parallel with the sampling power supply end, and one end close to the sampling capacitor is electrically connected to the sampling signal end; One end of the sampling capacitor away from the voltage-dividing capacitor and the other end of the coil are both electrically connected to the virtual ground line.

3. The high-voltage power grid transmission signal sensor according to claim 2, characterized in that: It also includes fixed resistors and adjustable resistors; The fixed resistor and the adjustable resistor are connected in series, one end of which is electrically connected to the sampling signal terminal, and the other end of which is electrically connected to the virtual ground line.

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