Fault indication type gap lightning arrester with tower inclination monitoring device

Abstract

The utility model relates to a fault indication type gap lightning arrester with a tower inclination monitoring device, which comprises a gap lightning arrester body, and a tower inclination trigger communication box is mounted on a support part on the lower side of the gap lightning arrester body and is used for monitoring the inclination of a tower in real time. The tower inclination triggering communication box can sense and trigger a communication function in real time, when the tower inclines due to external force such as natural force, gravity and stress, the inclination angle and displacement condition of the tower can be accurately measured, information is transmitted to a monitoring terminal, and operation and maintenance personnel can take measures in time.

Description

Technical Field

[0001] This utility model relates to the field of power equipment manufacturing technology, specifically a gap-type surge arrester with a tower tilt monitoring device and fault indication. Background Technology

[0002] A surge arrester is an electrical device used to protect electrical equipment from the hazards of high transient overvoltages during lightning strikes and to limit the duration and amplitude of follow current. Surge arresters are sometimes also called overvoltage protectors or overvoltage limiters.

[0003] While existing surge arresters have effectively solved the problem of power line tripping due to lightning strikes, when towers tilt due to external forces such as natural forces, gravity, and stress, it can lead to tower twisting, tilting, or movement, and in severe cases, tower collapse, seriously threatening the stability of the power system.

[0004] To address this, a gap-type surge arrester with a tower tilt monitoring device and fault indication is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a gap-type surge arrester with a tower tilt monitoring device and fault indication. The tower tilt is monitored in real time by a tower tilt trigger communication box installed on the support on the lower side of the gap-type surge arrester body.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A gapped surge arrester with a tower tilt monitoring device and fault indication includes a gapped surge arrester body and a tower tilt trigger communication box installed on a support member on the lower side of the gapped surge arrester body for real-time monitoring of the tower tilt angle.

[0008] Preferably, a drain wire is installed at the top of the gap surge arrester body, an insulating bracket is installed at the bottom of the gap surge arrester body, a disconnector is installed at the bottom of the insulating bracket, and a support for fixing the tower tilt trigger communication box is provided at the connection between the disconnector and the insulating bracket.

[0009] Preferably, one end of the insulating bracket is sleeved on the lower end of the gapped surge arrester body, and the other end of the insulating bracket is bolted. The tail end of the disconnector is connected to one end of the copper wire braided strip, and the other end of the copper wire braided strip is connected to the bolt of the insulating bracket.

[0010] Preferably, the copper wire braided tape is wrapped with copper wire inside, and the copper wire braided tape is wrapped with an insulating layer on the outside.

[0011] Preferably, electrode A is installed at the middle position of the gap arrester body, and electrode B is installed on the metal bracket near the bolt of the insulating bracket, with the center lines of electrode A and electrode B on a straight line.

[0012] Preferably, the insulating bracket and the metal bracket are fixedly connected.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. When the tower tilts due to external forces such as natural forces, gravity, and stress, the tower tilt trigger communication box can sense and trigger the communication function in real time. It can accurately monitor and measure the tilt angle and displacement of the tower and transmit the information to the monitoring terminal so that maintenance personnel can take timely measures.

[0015] 2. This tower tilt trigger communication box helps maintenance personnel understand the tower's operating status in real time, promptly detect and address potential tilting issues, thereby preventing accidents such as tower collapse. Furthermore, this tower tilt trigger communication box can integrate the collection of meteorological data such as ambient temperature, humidity, wind speed, and wind direction, enabling 24 / 7 online monitoring of the tower. Attached Figure Description

[0016] Figure 1 A schematic diagram of a gapped surge arrester with fault indication for a tower tilt monitoring device;

[0017] Figure 2 This is a flowchart illustrating how tower tilt triggers the communication box.

[0018] In the diagram: 1. Gap-type surge arrester body; 2. Drain wire; 3. Insulating bracket; 4. Disconnector; 5. Support component; 6. Tower tilt trigger communication box; 7. Bolt; 8. Copper wire braided strip; 9. Metal bracket; 10. Electrode A; 11. Electrode B. Detailed Implementation

[0019] The technical solutions of the present utility model will now be described with reference to the accompanying drawings of the embodiments. The embodiments described below are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0020] Please see Figures 1 to 2 This utility model provides a gap-type surge arrester with a tower tilt monitoring device and fault indication, the technical solution of which is as follows:

[0021] A gapped surge arrester with a tower tilt monitoring device and fault indication includes a gapped surge arrester body 1. A tower tilt trigger communication box 6 is mounted on a support member 5 at the lower end of the gapped surge arrester body 1. The tower tilt trigger communication box 6 is fixed in position by the support member 5. The tower tilt trigger communication box 6 is mounted on the support member 5 for real-time monitoring of the tower tilt. The support member 5 can also be a bracket.

[0022] The tower tilt trigger communication box 6 is mainly used for tower tilt monitoring and measurement. When the tower tilts due to external forces such as natural forces, gravity, and stress, the tower tilt trigger communication box 6 can sense and trigger the communication function in real time. It can accurately measure the tilt angle and displacement of the tower and transmit the information to the monitoring terminal so that maintenance personnel can take timely measures.

[0023] Tower tilt trigger communication box 6 includes:

[0024] Power module: Provides power to the node signal transmission processor and communication module, ensuring normal operation of the equipment; it adopts a solar + battery power supply mode. The solar panel collects solar energy and converts it into electrical energy to power the power module, ensuring the normal operation of the tower tilt trigger communication box 6. The battery stores electrical energy, enabling the tower tilt trigger communication box 6 to continue to operate normally even under severe weather conditions such as continuous rain.

[0025] Dual-axis tilt sensor: measures the position, velocity, or angle of an object, and uses a Kalman filter algorithm to determine the tilt angle of the tower based on the monitoring and measurement of the internal accelerometer and gyroscope.

[0026] The dual-axis tilt sensor includes:

[0027] Accelerometer: An accelerometer can detect and measure changes in the acceleration of a tower and convert them into an electrical signal output. By detecting the tower's acceleration, that is, the change in the tower's velocity per unit time, including changes in velocity magnitude and direction, the tilt angle can be derived.

[0028] Gyroscope: A device used to measure and maintain orientation, providing precise angle and angular velocity measurements to monitor and assess the stability and safety of towers. It provides attitude, orientation, and velocity information by monitoring angular velocity or angle. The working principle of a gyroscope is based on the principle of conservation of angular momentum, meaning that a flywheel rotor (gyroscope) rotating at high speed around an axis of symmetry will always point its axis of rotation in a fixed direction due to its inertia. In the tower tilt trigger communication box 6, the gyroscope is mainly used to measure the tower's tilt angle and rotational motion to determine whether the tower has tilted or displaced.

[0029] Node signal transmission processor: Transmits the information collected and processed by the dual-axis tilt sensor, such as tilt degree, linear tilt degree, lateral tilt degree, linear tilt angle, and lateral tilt angle, to the monitoring terminal through the communication module.

[0030] Communication module: Used for the transmission and exchange of information between the node signal processor and the monitoring terminal. The node signal transmission processor and the communication module are integrated into the same module. Example

[0031] In this embodiment, a tower tilt trigger communication box 6 is installed at the lower end of the gap-type surge arrester body 1. The tower tilt trigger communication box 6 is fixed by a support member 5, which is installed on the gap-type surge arrester body 1. The support member 5 can also be a bracket or the like. The tower tilt trigger communication box 6 uses an internally installed dual-axis tilt sensor and node signal transmission processor to monitor the tower tilt angle in real time, such as whether it is parallel to the line direction or perpendicular to the line direction.

[0032] First, the power module provides power to the node signal transmission processor and communication module, ensuring the normal operation of the equipment. The power module uses a solar + battery power supply mode; the solar panel converts absorbed solar energy into electrical energy to power the entire device; additionally, the battery stores electrical energy, allowing the tower tilt trigger communication box 6 to continue operating normally even under severe weather conditions such as continuous rain. Then, a dual-axis tilt sensor measures the tower's tilt angle on different axes, including the longitudinal tilt angle and the lateral tilt angle. The dual-axis tilt sensor monitors the tower using the tilt angle method, measuring the tower's tilt range and accuracy. The longitudinal tilt angle is ±10°, ≤±0.05°, and the lateral tilt angle is ±10°, ≤±0.05°. When the tilt angle exceeds this range, the information is transmitted to the monitoring terminal. Tilt angle information acquisition is conducted automatically and under controlled conditions. For data processing and judgment, data is collected when the tower tilt angle exceeds the set threshold. The data is stored cyclically for at least 30 days, with a minimum collection interval of more than 30 minutes and a minimum collection interval of less than or equal to 24 hours. The default time interval is 60 minutes.

[0033] The dual-axis tilt sensor uses an internal accelerometer and gyroscope to measure and calculate the tower's tilt angle. The accelerometer derives the tilt angle by detecting the tower's acceleration, while the gyroscope detects the tower's tilt angle in the horizontal direction. Using these two types of measurements, the dual-axis tilt sensor can calculate the tower's tilt angle. When the dual-axis tilt sensor is in a horizontal position, the effect of gravity on the accelerometer is small, even negligible. However, once the dual-axis tilt sensor tilts, gravity causes the accelerometer to produce a component, which is proportional to the tower's tilt angle. The dual-axis tilt sensor converts the gravitational acceleration measured by the accelerometer into a corresponding electronic signal and uses an analog-to-digital converter (ADC) to convert the analog signal into a digital signal. Finally, based on the converted digital signal, the dual-axis tilt sensor uses a Kalman filter algorithm to calculate the tower's tilt angle.

[0034] After receiving the tower tilt angle information transmitted by the dual-axis tilt sensor, the node signal transmission processor outputs information such as tilt degree, along-line tilt degree, lateral tilt degree, along-line tilt angle, and lateral tilt angle. This information is then transmitted to the monitoring terminal via the communication module, enabling maintenance personnel to monitor and measure the tower's tilt angle and displacement in real time and take appropriate measures. The communication module can also be 4G / 5G or wireless WIFI, using wireless communication methods such as mobile, China Unicom, and China Telecom networks to remotely upload the tower tilt angle information to the monitoring terminal. The node signal transmission processor and the communication module are integrated into the same module.

[0035] Of course, in actual operation, when dual-axis tilt sensors measure and acquire the position, velocity, or angle of towers, the data may be inaccurate due to errors and noise. Kalman filtering not only utilizes the data provided by dual-axis tilt sensors but also incorporates motion patterns for correction, thereby improving data accuracy. The node signal transmission processor transmits the received tower tilt information to the monitoring terminal, enabling maintenance personnel to monitor the tower tilt in the line in real time, allowing for targeted maintenance and ensuring the safe, stable, and reliable operation of power grid equipment.

[0036] Acceleration is a measure of how velocity changes over time, and can involve changes in the magnitude or direction of velocity.

[0037] Components refer to the acceleration values ​​measured along different axes. In a triaxial accelerometer, these axes are typically the X, Y, and Z axes, corresponding to three mutually perpendicular directions. Each accelerometer on each axis can independently measure the acceleration component along that axis; these components collectively describe the object's acceleration state in three-dimensional space.

[0038] The Kalman filter is an efficient recursive algorithm used to estimate the state of a dynamic system from a series of noisy measurements. Proposed by Rudolf E. Kalman in 1960, it was initially used in the aerospace field and has since been widely applied in various engineering and scientific fields, such as navigation, control, signal processing, and time series analysis.

[0039] These measurements are crucial for understanding the motion of an object; they can be used to calculate the object's velocity and position changes, as well as to determine the object's orientation and attitude in various applications.

[0040] like Figure 1 As shown, an insulating bracket 3 is fitted onto the lower end of the gap-type surge arrester body 1. One end of the insulating bracket 3 is fitted onto the lower end of the gap-type surge arrester body 1, and a bolt 7 is installed on the other end away from the gap-type surge arrester body 1. The bolt 7 fixes the insulating bracket 3 and the metal bracket 9 on the side away from the gap-type surge arrester body 1. The metal bracket 9 is located near the bolt 7. A disconnector 4 is installed at the lower end of the insulating bracket 3. A support 5 for fixing the tower tilt trigger communication box 6 is installed between the insulating bracket 3 and the disconnector 4. The tower tilt trigger communication box 6 is placed on the support 5. The support 5 can also be a bracket. The other end of the tower tilt trigger communication box 6 rests against the gap-type surge arrester body 1. One end of the copper wire braided strip 8 is connected to the bottom of the disconnector 4. The other end of the copper wire braided strip 8 is connected to the bolt 7 of the insulating bracket 3. The copper wire braided strip 8 contains copper wire and is wrapped with an insulating layer on the outside, which serves a protective function.

[0041] A drain wire 2 is installed at the top of the gap-type surge arrester body 1. An electrode A10 is located in the middle of the gap-type surge arrester body 1, and an electrode B11 is also installed on the corresponding metal bracket 9. The center lines of electrodes A10 and B11 are on a straight line. The two electrodes are used for discharge. When the gap-type surge arrester discharges through the gap-type surge arrester body 1 to the metal bracket 9, a channel is formed to connect to ground. When the gap-type surge arrester is subjected to a strong lightning strike, the gap-type surge arrester will explode, causing the disconnector 4 at the lower end of the gap-type surge arrester body 1 to fall off. Since one end of the copper wire braided tape 8 is connected to the lower end of the disconnector 4 and the other end is connected to the bolt 7 of the insulating bracket 3, when the disconnector 4 falls off, it is connected by the copper wire braided tape 8 and hangs under the insulating bracket 3, forming a fault indicator, which is convenient for maintenance personnel. The disconnector 4 is a thermal explosion disconnector 4.

[0042] Because an insulating bracket 3 is installed at the lower end of the gap-type surge arrester body 1, and the end of the insulating bracket 3 away from the gap-type surge arrester body 1 is fixedly connected to the metal bracket 9, and the copper wire braided strip 8 at the bottom of the disconnector 4 is connected and fixed to the bolt 7 on the insulating bracket 3, even if the gap-type surge arrester is struck by strong lightning and the disconnector 4 falls off, because of the setting of the insulating bracket 3, if the gap-type surge arrester is damaged, there will be no grounding, tripping and secondary faults, thus ensuring the stable and safe operation of the line.

[0043] Embodiments of the present invention have been shown and described. Those skilled in the art will be able to make various changes, modifications, substitutions and alterations to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A surge arrester with a tower tilt monitoring device and fault indication, characterized in that: It includes a gapped surge arrester body (1), and a tower tilt trigger communication box (6) for real-time monitoring of the tower tilt angle is installed on the support member (5) on the lower side of the gapped surge arrester body (1).

2. The surge arrester with fault indication type and tower tilt monitoring device according to claim 1, characterized in that: A drain wire (2) is installed at the top of the gap arrester body (1), an insulating bracket (3) is installed at the bottom of the gap arrester body (1), a disconnector (4) is installed at the bottom of the insulating bracket (3), and a support (5) for fixing the tower tilt trigger communication box (6) is provided at the connection between the disconnector (4) and the insulating bracket (3).

3. The surge arrester with fault indication type and tower tilt monitoring device according to claim 2, characterized in that: One end of the insulating bracket (3) is sleeved on the lower end of the gap arrester body (1), and the other end of the insulating bracket (3) is equipped with a bolt (7). The tail end of the disconnector (4) is connected to one end of the copper wire braided strip (8), and the other end of the copper wire braided strip is connected to the bolt (7) of the insulating bracket (3).

4. The surge arrester with fault indication type and tower tilt monitoring device according to claim 3, characterized in that: The copper wire braided tape (8) is wrapped with copper wire inside, and the copper wire braided tape (8) is wrapped with an insulating layer on the outside.

5. The surge arrester with fault indication type and gap as described in claim 3, characterized in that: Electrode A (10) is installed in the middle of the body (1) of the gap surge arrester. Electrode B (11) is installed on the metal bracket (9) of the insulating bracket (3) near the bolt (7). The center lines of the electrode A (10) and the electrode B (11) are on a straight line.

6. The surge arrester with fault indication type for tower tilt monitoring device according to claim 5, characterized in that: The insulating bracket (3) and the metal bracket (9) are fixedly connected.

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