TWM602638U - Fault indicator with wireless communication function - Google Patents

Abstract

The invention proposes a fault indicator with wireless communication function, which includes a fault indicator unit, an electric energy conversion unit, a wireless communication unit and a secondary battery unit. The new type uses a wireless communication unit to transmit the status of the high-voltage transmission equipment to a remote monitoring device in a wireless communication mode, which reduces the time required for manpower to query along the faulty line in the past. In addition, the arrangement of the secondary battery unit and the power conversion unit can also actively provide the power and backup power required for the operation of the fault indicator with the wireless communication function.

Description

Fault indicator with wireless communication function

The present invention relates to a fault indicator, especially a fault indicator with wireless communication function. In addition to detecting the voltage and current on the line, the detection information can be transmitted and received through wireless communication, and can be transmitted through a current transformer To provide the required power.

The fault indicator is an electromagnetic induction device that can reflect that a fault sign appears when a short-circuit current passes through. Generally, the fault indicator is installed in the 6~66KV high-voltage cable overhead line, power cable, substation box, ring network cabinet, and cable branch box to indicate the path of fault current. At the same time, the fault indicator can detect the running status of the line and the location of the fault in real time, such as power transmission, power outage, grounding, short circuit, and overcurrent.

Since the fault indicator does not have the function of proactive notification, when a line fails, the line patrol must start from the front of the line fault and find the fault point. There is no way to immediately determine where the fault point is on the line. In addition, when on an overhead line, the fault indicator may sometimes be blocked by tree branches or reflected by sunlight, causing line inspectors to be unable to clearly determine whether the fault indicator display is normal.

To solve the above problems, the fault indicator must have the function of wireless communication. The monitoring information and data are transmitted through wireless communication, and the fault indicator can directly send a signal to the master station when a fault occurs, so that the staff can determine the fault location, and there is no need to start line inspection from the front end of the line fault. However, there is currently no relevant solution on the market.

This paragraph of text extracts and compiles certain features of this new model. Other features will be revealed in subsequent paragraphs. Its purpose is to cover the spirit and scope of the additional patent application, various modifications and similar arrangements.

In view of the requirements of the aforementioned existing fault indicators, the main purpose of the new model is to provide a fault indicator with wireless communication function to achieve stable wireless communication and timely report the current status of the high-voltage transmission equipment it detects. The fault indicator with wireless communication function includes: a fault indicator unit, which is connected with a high-voltage transmission equipment, detects the current and/or voltage status of the high-voltage transmission equipment, and detects data Output; an electrical energy conversion unit, electrically connected to the fault indicator unit, through the fault indicator unit to capture the electrical energy of the high-voltage power transmission equipment, and convert the electrical energy into working direct current; a wireless communication unit, and the fault The indicator unit is signal-connected and electrically connected with the power conversion unit, receives the working direct current for operation, and determines whether the high-voltage transmission equipment is faulty based on the detection data, and sends the result to the outside through wireless communication; and A secondary battery unit is electrically connected with the electric energy conversion unit and the wireless communication unit. When the power conversion unit supplies the working DC power, the secondary battery unit is simultaneously charged, and when the power conversion unit cannot supply the working DC power, the secondary battery unit provides the working DC power to the wireless communication unit.

According to the present invention, the fault indicator unit may further include: a current transformer, which obtains electrical energy from the high-voltage power transmission equipment and samples the current and/or voltage on the high-voltage power transmission equipment; and a fault indicator module , To be electrically connected to the current transformer to determine the current and/or voltage status of the high-voltage electrical transmission equipment through the electric energy obtained through the current transformer and the sampled current and/or voltage, to generate the detection data, and The detection data is output.

According to the present invention, the electric energy conversion unit may further comprise: a transformer, which reduces the voltage of the electric energy obtained by the current transformer from a high potential to a low potential; and a rectifier, which is electrically connected to the transformer, reduces the electric energy type to a low potential Converting alternating current to direct current; and a direct current power management module, which is electrically connected to the rectifier, and adjusts the direct current from the rectifier to the working direct current to provide the components electrically connected to it.

According to the present invention, the wireless communication unit test further includes: an antenna module; a digital processor, connected to the fault indicator module and the antenna module signal, and determine the high-voltage transmission equipment according to the detection data Whether it is faulty, generate a judgment result at regular time, and send the judgment result to a specific external client device or power distribution master receiving device through the antenna module; and a random access memory, which is connected to the digital processor signal , Provide the code for the digital processor to generate the judgment result.

Preferably, the judgment result includes the device number of the digital processor.

Preferably, the device number is a media access control address or a product number.

Preferably, the digital processor transmits the judgment result through the antenna module to comply with LTE-M, WI-FI, LoRa, Wi-SUN or NB-IoT specifications.

Preferably, the high-voltage power transmission equipment is a high-voltage cable overhead line, power cable, substation box, ring network cabinet or cable branch box.

The new type uses a wireless communication unit to transmit the status of the high-voltage transmission equipment to a remote monitoring device in a wireless communication mode, which reduces the time required for manpower to query along the faulty line in the past. In addition, the arrangement of the secondary battery unit and the power conversion unit can also actively provide the power and backup power required for the operation of the fault indicator with the wireless communication function.

The present invention will be described in more detail by referring to the following embodiments.

Please refer to Figure 1 and Figure 2 at the same time when reading the contents of the implementation mode. FIG. 1 is a component block diagram of a fault indicator 10 with wireless communication function according to an embodiment of the present invention, and FIG. 2 shows the operation state of the fault indicator 10 with wireless communication function. The aforementioned fault indicator 10 with wireless communication function includes a fault indicator unit 100, a power conversion unit 200, a wireless communication unit 300, and a secondary battery unit 400. The structure and function of each technical element and the operation mode of the fault indicator 10 with wireless communication function will be described in detail below.

The fault indicator unit 100 can be connected to a high-voltage power transmission device 20 to detect the current and/or voltage conditions of the high-voltage power transmission device 20, and output the result as a detection data. According to the present invention, the high-voltage power transmission equipment 20 may be, but is not limited to, high-voltage overhead lines, power cables, transformer boxes, ring main cabinets, and cable branch boxes. In this embodiment, the high-voltage power transmission equipment 20 is illustrated by taking a power cable as an example. The fault indicator unit 100 can be connected to a power cable with appropriate auxiliary equipment (not shown), as shown in FIG. 1.

The fault indicator unit 100 includes a current transformer 101 and a fault indicator module 102. The function of the current transformer 101 is to obtain the electric energy of the high-voltage electric transmission equipment 20 and to sample the current and/or voltage on the high-voltage electric transmission equipment 20. The fault indicator module 102 is electrically connected to the current transformer 101 (in the figure, the electrical connection is represented by a solid line and the signal connection is represented by a dashed line) to obtain the electric energy and the sampled current and/or voltage through the current transformer 101, The current and/or voltage conditions on the high-voltage power transmission equipment 20 are determined. Accordingly, the fault indicator module 102 generates the aforementioned detection data and outputs the detection data.

The electrical energy conversion unit 200 is electrically connected to the fault indicator unit 100, and the electrical energy of the high-voltage power transmission equipment 20 can be captured through the fault indicator unit 100, and the electrical energy can be converted into working direct current. To this end, the power conversion unit 200 includes a transformer 201, a rectifier 202, and a DC power management module 203. The transformer 201 can reduce the voltage of the electric energy obtained by the current transformer 101 from a high level to a low level. The rectifier 202 is electrically connected to the transformer 201, and can convert the form of electric energy that has fallen to a low potential from alternating current to direct current. The DC power management module 203 is electrically connected to the rectifier 202, and adjusts the DC power from the rectifier 202 to the working DC power to provide the components electrically connected to it.

The wireless communication unit 300 is signally connected to the fault indicator unit 100 and electrically connected to the power conversion unit 200. The wireless communication unit 300 can receive the working DC power from the power conversion unit 200 to operate, and determine whether the high-voltage power transmission device 20 is faulty based on the aforementioned detection data, and send the result to the outside through wireless communication. In practice, the wireless communication unit 300 includes an antenna module 301, a digital processor 302, and a random access memory 303. The antenna module 301 is a tool for transmitting the received electrical signals to the outside in the form of electromagnetic waves. The digital processor 302 is signally connected to the fault indicator module 102 and the antenna module 301, and determines whether the high-voltage transmission equipment is faulty according to the aforementioned detection data. Fault conditions such as voltage drop exceeding a certain value, abnormally large or small current, etc. In addition, the digital processor 302 also periodically generates a judgment result of the conclusion of whether the high-voltage transmission equipment is faulty, and sends the judgment result to a specific external client device or a receiving device of a power distribution master station through the antenna module 301. The random access memory 303 is signally connected to the digital processor 302 to provide the digital processor 302 with a program code (judgment logic) for generating the judgment result. It should be noted that, because in the high-voltage transmission system where the high-voltage transmission equipment 20 is located, there may be many fault indicators 10 with wireless communication functions, which are responsible for receiving and managing the client of the high-voltage transmission system. The device or the receiving device of the power distribution master station needs to distinguish which fault indicator 10 with wireless communication function sends the judgment result. Therefore, the judgment result needs to include the device number of the digital processor 302 of the fault indicator 10 with wireless communication function where the high-voltage power transmission device 20 is located for distinction. In practice, the device number can be a media access control address or a product number. In addition, in order to unify wireless signal specifications for transmission, the digital processor 302 sends the judgment result through the antenna module 301 to comply with certain industry specifications, such as but not limited to LTE-M, WI-FI, LoRa, Wi-SUN or NB- IoT specification.

The secondary battery unit 400 is electrically connected to the power conversion unit 200 and the wireless communication unit 300. When the power conversion unit 300 normally supplies the working DC power, the power conversion unit 300 charges the secondary battery unit 400 at the same time. When the power conversion unit 300 fails to work normally (for example, it is damaged or the high-voltage power transmission device 20 cannot provide power) to supply the working DC power, the secondary battery unit 400 can provide the working DC power to the wireless communication unit 300 so that the latter can continue Operation.

Please see Figure 2. When a fault indicator with wireless communication function is used in a high-voltage electric transmission system, the fault indicator with wireless communication function can be arranged on the high-voltage electric transmission equipment to be detected. Taking Figure 2 as an example, high-voltage power transmission equipment is a power cable in a high-voltage power transmission system. For the convenience of description, only a first fault indicator 10a with wireless communication function is erected on a first power cable 20a, and a second fault indicator 10b with wireless communication function is erected on a second power cable 20b. . The first fault indicator 10a with wireless communication function and the second fault indicator 10b with wireless communication function are respectively connected to a receiving device 30 of a power distribution master station with wireless signals, and each of them transmits their judgment results to the receiving device 30 of the power distribution master station. For real-time monitoring. When a problem occurs in the second power cable 20b, the second fault indicator 10b with wireless communication function sends the judgment result containing the problem occurrence message to the receiving device 30 of the power distribution master station. Then, since the judgment result contains the device number of the digital processor 302 of the second fault indicator 10b with wireless communication function where the second power cable 20b is located, the manager can know the location of the second power cable according to the location corresponding to the device number. There is a problem with 20b, which will not be confused with the first power cable 20a. The management personnel can quickly go to the location of the second power cable 20b for maintenance, reducing the time required to send manpower to inquire along the faulty line in the past.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention. Anyone with ordinary knowledge in the technical field can make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, The scope of protection of this new model shall be subject to the scope of the attached patent application.

10: Fault indicator with wireless communication function 10a: The first fault indicator with wireless communication function 10b: The second fault indicator with wireless communication function 20: High-voltage transmission equipment 20a: The first power cable 20b: second power cable 30: Receiving equipment of the distribution master 100: Fault indicator unit 101: current transformer 102: Fault indicator module 200: power conversion unit 201: Transformer 202: Rectifier 203: DC power management module 300: wireless communication unit 301: Antenna Module 302: digital processor 303: Random Access Memory 400: Secondary battery unit

FIG. 1 is a block diagram of components of a fault indicator with wireless communication function according to an embodiment of the present invention, and FIG. 2 shows the operation state of the fault indicator with wireless communication function.

10: Fault indicator with wireless communication function

20: High-voltage transmission equipment

100: Fault indicator unit

101: current transformer

102: Fault indicator module

200: power conversion unit

201: Transformer

202: Rectifier

203: DC power management module

300: wireless communication unit

301: Antenna Module

302: digital processor

303: Random Access Memory

400: Secondary battery unit

Claims (8)

A fault indicator with wireless communication function, including: A fault indicator unit is connected to a high-voltage transmission equipment, detects the current and/or voltage conditions of the high-voltage transmission equipment, and outputs a detection data; An electric energy conversion unit, electrically connected to the fault indicator unit, captures the electric energy of the high-voltage power transmission equipment through the fault indicator unit, and converts the electric energy into working direct current; A wireless communication unit is signally connected to the fault indicator unit and electrically connected to the power conversion unit, receives the working DC power to operate, and determines whether the high-voltage power transmission equipment is faulty based on the detection data, and uses the result Send to the outside through wireless communication; and A secondary battery unit electrically connected to the electric energy conversion unit and the wireless communication unit, Wherein, when the power conversion unit supplies the working DC power, the secondary battery unit is charged at the same time, and when the power conversion unit cannot supply the working DC power, the secondary battery unit provides the working DC power to the wireless communication unit. The fault indicator with wireless communication function according to claim 1, wherein the fault indicator unit further includes: A current transformer to obtain the electrical energy of the high-voltage power transmission equipment and sample the current and/or voltage on the high-voltage power transmission equipment; and A fault indicator module is electrically connected to the current transformer to determine the current and/or voltage condition of the high-voltage electrical transmission equipment through the electric energy obtained by the current transformer and the sampled current and/or voltage, and to generate the Detect data and output the detected data. The fault indicator with wireless communication function according to claim 1, wherein the power conversion unit further includes: A transformer, which reduces the voltage of the electric energy obtained by the current transformer from a high potential to a low potential; A rectifier, electrically connected to the transformer, converts the form of electric energy that has fallen to a low potential from alternating current to direct current; and A DC power management module is electrically connected to the rectifier, and adjusts the DC power from the rectifier to the working DC power to provide the components electrically connected to it. The fault indicator with wireless communication function according to claim 2, wherein the wireless communication unit further includes: An antenna module; A digital processor is connected to the fault indicator module and the antenna module signal to determine whether the high-voltage transmission equipment is faulty according to the detection data, generate a judgment result at regular time, and transmit the judgment result through the antenna The module sends to a specific external client device or the receiving device of the power distribution master station; and A random access memory is connected with the digital processor signal to provide the digital processor with a program code for generating the judgment result. The fault indicator with wireless communication function according to claim 4, wherein the judgment result includes the device number of the digital processor. The fault indicator with wireless communication function according to claim 5, wherein the device number is a media access control address or a product number. The fault indicator with wireless communication function according to claim 4, wherein the digital processor transmits the judgment result through the antenna module to comply with LTE-M, WI-FI, LoRa, Wi-SUN or NB-IoT standards. The fault indicator with wireless communication function as described in claim 1, wherein the high-voltage electric transmission equipment is a high-voltage cable overhead line, power cable, substation box, ring network cabinet or cable branch box.

Images