CN111077405A - Power distribution network detection device - Google Patents

Power distribution network detection device Download PDF

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Publication number
CN111077405A
CN111077405A CN201911135837.6A CN201911135837A CN111077405A CN 111077405 A CN111077405 A CN 111077405A CN 201911135837 A CN201911135837 A CN 201911135837A CN 111077405 A CN111077405 A CN 111077405A
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CN
China
Prior art keywords
data
voltage
power distribution
distribution network
low
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Pending
Application number
CN201911135837.6A
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Chinese (zh)
Inventor
刘俊
魏华杰
陈远良
杨京京
麦琳
张之涵
康小伟
许晨
蔡春育
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Shenzhen Power Supply Bureau Co Ltd
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Shenzhen Power Supply Bureau Co Ltd
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Application filed by Shenzhen Power Supply Bureau Co Ltd filed Critical Shenzhen Power Supply Bureau Co Ltd
Priority to CN201911135837.6A priority Critical patent/CN111077405A/en
Publication of CN111077405A publication Critical patent/CN111077405A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/08Locating faults in cables, transmission lines, or networks
    • G01R31/081Locating faults in cables, transmission lines, or networks according to type of conductors
    • G01R31/086Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution networks, i.e. with interconnected conductors

Abstract

The application relates to a power distribution network detection device, include: high pressure data acquisition device, low pressure data acquisition device and temperature acquisition device. The high-voltage data acquisition device, the low-voltage data acquisition device and the temperature acquisition device respectively acquire high-voltage end data, low-voltage end data and temperature data of the power system. The operation and inspection terminal receives the high-voltage end data, the low-voltage end data and the temperature data and sends the data to the receiving equipment of the monitoring main station. And finally, the processing equipment determines whether the running state of the power distribution network is abnormal or not according to whether the high-voltage end data, the low-voltage end data and the temperature data are abnormal or not. The embodiment of the application automatically collects and processes the high-voltage end data, the low-voltage end data and the temperature data in the power distribution network, and the patrol personnel can monitor the monitoring points in the power distribution network in real time only by processing the high-voltage end data, the low-voltage end data and the temperature data in the equipment. The technical effects of reducing the inspection difficulty and improving the safety of inspection workers are achieved.

Description

Power distribution network detection device
Technical Field
The application relates to the technical field of power grid operation and maintenance management, in particular to a power distribution network detection device.
Background
The operation and maintenance of the power distribution network is short for operation, maintenance, inspection, debugging, transformation, replacement and the like of the power distribution network equipment, and mainly comprises substation internal equipment, transmission equipment and the like. The daily inspection and maintenance of the power distribution network is an important link in the operation and maintenance work of the power distribution network.
At present, the daily inspection and maintenance in the operation and the inspection of the power distribution network in China mainly take the human field input as the main factor. The power distribution network operation and inspection needs more monitoring points, so a great amount of manpower is needed to be invested to carry out daily operation and maintenance work of the power distribution network operation and inspection. Due to different qualities of the patrol workers, potential safety hazards cannot be found timely sometimes, and power grid accidents are easy to happen.
Disclosure of Invention
On the basis, it is necessary to provide a power distribution network detection device aiming at the problems that potential safety hazards cannot be found timely and power grid accidents are easy to happen due to different qualities of routing inspection workers in the prior art.
A power distribution network detection apparatus comprising:
the high-voltage data acquisition equipment is used for acquiring high-voltage end data in the power distribution network;
the low-voltage data acquisition equipment is used for acquiring low-voltage end data in the power distribution network;
the temperature acquisition equipment is used for acquiring temperature data in the power distribution network;
the operation and inspection terminal is respectively in communication connection with the high-voltage data acquisition equipment, the low-voltage data acquisition equipment and the temperature acquisition equipment, and is used for receiving the high-voltage end data, the low-voltage end data and the temperature data;
a monitoring master station, comprising:
the receiving equipment is in communication connection with the operation and inspection terminal and is used for receiving the high-voltage end data, the low-voltage end data and the temperature data;
and the processing equipment is in signal connection with the receiving equipment and is used for determining the running state of the power distribution network according to the high-voltage end data, the low-voltage end data and the temperature data.
In one embodiment, the high voltage data acquisition device comprises:
the first current acquisition equipment is in communication connection with the operation and inspection terminal and is used for acquiring current data of a high-voltage end;
and the electric field acquisition equipment is in communication connection with the operation and detection terminal and is used for acquiring the grounding electric field data of the high-voltage end.
In one embodiment, a low pressure data collection device comprises:
the second current acquisition equipment is in communication connection with the operation and inspection terminal and is used for acquiring current data of a low-voltage end;
and the voltage acquisition equipment is in communication connection with the operation inspection terminal and is used for acquiring voltage data of the low-voltage end.
In one embodiment, the method further comprises the following steps:
the concentrator is in communication connection with the operation and inspection terminal and is used for collecting electric energy data of a user side;
the operation and detection terminal is used for receiving the electric energy data of the user side and sending the electric energy data to the monitoring master station.
In one embodiment, the concentrator is in communication connection with the monitoring master station, and is configured to collect the power data of the user side and send the power data to the monitoring master station.
In one embodiment, the operation and inspection terminal is wirelessly connected with the high-voltage data acquisition equipment; the operation and inspection terminal is respectively in wired connection with the low-voltage data acquisition equipment and the temperature acquisition equipment.
In one embodiment, the operation and detection terminal is wirelessly connected with the monitoring master station; the concentrator is in wireless connection with the monitoring master station.
In one embodiment, the power distribution network detection apparatus further includes:
and the alarm equipment is in communication connection with the temperature acquisition equipment and is used for sending an alarm signal when the temperature data of the temperature acquisition equipment exceeds a preset threshold value.
In one embodiment, the number of the first current collecting devices is multiple, and the first current collecting devices are respectively used for detecting current data of different lines at a high-voltage end;
the second current acquisition equipment is a plurality of in quantity, is used for detecting the current data of the different circuits of low pressure end respectively.
In one embodiment, the number of the temperature acquisition devices is multiple, and the temperature acquisition devices are respectively used for acquiring temperature data of different devices in the power distribution network.
The embodiment of the application provides a power distribution network detection device, high-voltage data acquisition equipment gathers electric power system high-voltage end data, low-voltage data acquisition equipment gathers electric power system's low pressure end data, temperature acquisition equipment gathers electric power system's temperature data. The operation and detection terminal receives the high-voltage end data, the low-voltage end data and the temperature data and sends the high-voltage end data, the low-voltage end data and the temperature data to the receiving equipment of the monitoring main station through the operation and detection terminal. And finally, the processing equipment processes and analyzes the high-voltage end data, the low-voltage end data and the temperature data, and determines whether the running state of the power distribution network is abnormal or not according to whether the high-voltage end data, the low-voltage end data and the temperature data are abnormal or not. The embodiment of the application is to in the power distribution network the high pressure end data the low pressure end data with the temperature data are automatic acquisition and processing, and the patrol personnel only need to pass through in the processing equipment the high pressure end data the low pressure end data with the temperature data can be right monitoring point in the power distribution network carries out real-time monitoring. Therefore, the technical problems that potential safety hazards cannot be found timely sometimes and power grid accidents are easy to happen due to different qualities of routing inspection workers are solved. The technical effects of reducing the inspection difficulty and improving the safety of inspection workers are achieved.
Drawings
Fig. 1 is a schematic application environment diagram of a power distribution network detection apparatus according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a power distribution network detection device according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a high-voltage data acquisition device of a power distribution network detection apparatus according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of a low-voltage data acquisition device of a power distribution network detection apparatus according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of a power distribution network detection device according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of a power distribution network detection device according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of a power distribution network detection device according to an embodiment of the present application.
Description of reference numerals:
10. a power distribution network detection device; 100. a high voltage data acquisition device; 110. a first current collection device; 120. an electric field collection device; 200. a low voltage data acquisition device; 210. a second current collection device; 220. a voltage acquisition device; 300. a temperature acquisition device; 400. a transportation and inspection terminal; 500. a monitoring master station; 510. a receiving device; 520. a processing device; 600. a concentrator; 700. and (5) an alarm device.
Detailed Description
In order to make the purpose, technical solution and advantages of the present application more clearly understood, a power distribution network detection apparatus of the present application is further described in detail below by embodiments and with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings). In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present application and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be considered as limiting the present application.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
Referring to fig. 1, a power distribution network detection apparatus 10 provided in the embodiment of the present application may be applied to a high-voltage end, a low-voltage end, and a user end of a power distribution network. The devices in the power distribution network generally include: power stations, power transformers, power transmission equipment, power distribution rooms, branch cables and the like. In the power distribution network high voltage end includes: power stations, power transformers, etc. The low voltage end includes in the power distribution network: transmission of electricity equipment, distribution room, electric cabinet, concentrator etc. The user side includes: user's electric energy meter, branch cable, branch switch etc.. The following description will take as an example the application of the power distribution network detection apparatus 10 according to the embodiment of the present application to a power converter, a power transmission device, and a user side.
Referring to fig. 2, an embodiment of the present application provides a power distribution network detection apparatus 10, including: the system comprises a high-voltage data acquisition device 100, a low-voltage data acquisition device 200, a running inspection terminal 400 and a monitoring master station 500.
The high-voltage data acquisition equipment 100 is used for acquiring high-voltage end data in the power distribution network. The high voltage data acquisition device 100 may be connected to the power station, the power transformer, and the like in the power distribution network, and is configured to detect current data, voltage data, electric field data, and the like of an a-phase line, a B-phase line, and a C-phase line at an incoming line end of the power transformer, for example. The high-voltage data acquisition device 100 may be one or a plurality of devices. The high voltage data acquisition device 100 may include one or more different acquisition devices, which may include, for example: and the current acquisition equipment, the voltage acquisition equipment, the electric field acquisition equipment and the like are respectively used for acquiring data of the current, the voltage, the electric field and the like of the power station or the power converter. Therefore, the real-time acquisition and monitoring of the high-voltage end data in the power distribution network are realized, and the comprehensiveness of the detection of the power distribution network is improved. The current collecting equipment can adopt a current transformer and the like, the voltage collecting equipment can adopt a voltage transformer and the like, and the electric field collecting equipment can adopt an electric field transformer and the like. In the power distribution network, the high voltage data acquisition device 100 of this embodiment may be used to acquire high voltage data in lines and devices of the power distribution network as long as the lines and devices have a ground voltage of 1000V or more. For example: voltage data, current data, electric field data, etc. of the high voltage side.
The low-voltage data acquisition device 200 is configured to acquire low-voltage end data in the power distribution network, and the low-voltage data acquisition device 200 may be connected to the power transmission device, the power distribution room, the power cabinet, the concentrator, and the like in the power distribution network, and is configured to acquire current data, voltage data, electric field data, and the like of the power transmission device, the power distribution room, the power cabinet, the concentrator, and the like. The number of the low-voltage data collection devices 200 may be one or more. The low pressure data collection device 200 may include one or more different collection devices, such as: the current collecting device, the voltage collecting device, the electric field collecting device and the like are respectively used for collecting current data, voltage data, electric field data and the like of the power transmission device, the power distribution room, the power cabinet, the concentrator and the like. Therefore, the real-time acquisition and monitoring of the low-voltage end data in the power distribution network are realized, and the comprehensiveness of the detection of the power distribution network is improved. The voltage acquisition equipment can adopt a voltage transformer, a voltmeter and the like. The current collecting device can adopt a current transformer, an ammeter and the like. The electric field acquisition equipment can adopt an electric field high transformer, an electric field tester and the like. In the power distribution network, as long as the ground voltage is less than 1000V, the low voltage data acquisition device 200 of this embodiment may be used to acquire low voltage data in the lines and devices thereof. For example: voltage data, current data, electric field data, etc. of the low voltage side.
The temperature acquisition device 300 is used for acquiring temperature data in the power distribution network. The temperature acquisition device 300 may be disposed on any device or line in the power distribution network, which needs to perform temperature detection, for example: transformers, electrical cabinets, switches, branch lines, etc. The number of the temperature acquisition devices 300 can be one or multiple, so that the temperature detection of multiple devices and lines in the power distribution network is improved. The temperature acquisition equipment 300 can be a DS18B20 digital temperature sensor, and has the advantages of small size, low price, strong anti-interference capability and high precision, and can also be realized by adopting a temperature detection circuit. In this embodiment, the temperature acquisition device 300 is not limited at all, and may be specifically configured according to actual needs, and only needs to satisfy the requirement that the temperature detection function for each device or line in the power distribution network can be implemented.
The operation and inspection terminal 400 is in communication connection with the high-voltage data acquisition device 100, the low-voltage data acquisition device 200 and the temperature acquisition device 300 respectively, and the operation and inspection terminal 400 is used for receiving the high-voltage end data, the low-voltage end data and the temperature data.
The monitoring master station 500 includes: a receiving device 510 and a processing device 520, the receiving device 510 and the processing device 520 being in signal connection. The receiving device 510 is in communication connection with the operation and inspection terminal 400, and is configured to receive the high-voltage end data, the low-voltage end data, and the temperature data. The receiving device 510 may employ a wireless network receiver or the like. The processing device 520 is configured to determine a current operation state of the power distribution network according to the high-voltage end data, the low-voltage end data, and the temperature data. The processing device 520 may employ a computer, a server, a PLC integrated chip, or the like. In this embodiment, the receiving device 510 and the processing device 520 are not specifically limited, and only the functions of receiving and processing the high-voltage end data, the low-voltage end data, and the temperature data can be respectively satisfied.
The processing device 520 is a core of the power distribution network detection apparatus 10 in this embodiment, and the processing device 520 may be disposed in a power distribution room in the power distribution network. The receiving device 510 may be wirelessly connected to the high voltage data collecting device 100, the low voltage data collecting device 200, and the temperature collecting device 300, or may be connected to the high voltage data collecting device by a wire. When the operation and inspection terminal 400 operates, the receiving device 510 sends the received high-voltage end data, low-voltage end data and temperature data to the processing device 520. The processing device 520 performs various calculations and analysis processes on the high-voltage end data, the low-voltage end data and the temperature data, so as to determine the current operation state of the power distribution network detection apparatus 10. And judging whether the power distribution network is abnormal or not according to the high-voltage end data, the low-voltage end data and the temperature data. In this embodiment, the processing device 520 may adopt a DFCS45-DX low-voltage branch operation monitoring device, and have a plurality of branch monitoring lines, so as to monitor the operation of a plurality of branches. The processing device 520 adopts multiple backups for the received high-voltage end data, low-voltage end data and temperature data, and adopts a redundancy design in safety to ensure that the processing and results of the data are more reliable.
The working principle of the power distribution network detection device 10 provided by this embodiment is as follows:
when the device is used, the high-voltage data acquisition device 100 and the low-voltage data acquisition device 200 of the present embodiment are respectively connected to the high-voltage end and the low-voltage end of the power distribution network, and the high-voltage data acquisition device 100 and the low-voltage data acquisition device 200 acquire the high-voltage end data and the low-voltage end data of the power distribution network. The temperature acquisition equipment 300 is connected to any equipment or line which needs temperature detection in the power distribution network, and the temperature acquisition equipment 300 acquires the temperature of the equipment or line which needs temperature detection. The high-voltage data collecting device 100, the low-voltage data collecting device 200, and the temperature collecting device 300 respectively transmit the high-voltage end data, the low-voltage end data, and the temperature data to the operation and inspection terminal 400. The operation and inspection terminal 400 forwards the high-voltage end data, the low-voltage end data and the temperature data to the receiving device 510 of the monitoring master station 500. The processing device 520 analyzes and processes the high-voltage end data, the low-voltage end data and the temperature data, and determines the current operation state of the power distribution network according to the high-voltage end data, the low-voltage end data and the temperature data. And determining whether the operation state of the power distribution network detection device 10 is abnormal or not according to whether the high-voltage end data, the low-voltage end data and the temperature data are abnormal or not.
The embodiment provides a power distribution network detection apparatus 10, the high-voltage data acquisition device 100 acquires the high-voltage end data of the power system, the low-voltage data acquisition device 200 acquires the low-voltage end data of the power system, and the temperature acquisition device 300 acquires the temperature data of the power system. The operation and inspection terminal 400 receives the high-voltage end data, the low-voltage end data and the temperature data, and transmits the high-voltage end data, the low-voltage end data and the temperature data to the receiving device 510 of the monitoring master station 500 through the operation and inspection terminal 400. Finally, the processing device 520 processes and analyzes the high-voltage end data, the low-voltage end data and the temperature data, and determines whether the operation state of the power distribution network is abnormal according to whether the high-voltage end data, the low-voltage end data and the temperature data are abnormal. In this embodiment, for the power distribution network, the high-voltage end data, the low-voltage end data and the temperature data are automatically collected and processed, and the patrol personnel can monitor the monitoring points in the power distribution network in real time only by the high-voltage end data, the low-voltage end data and the temperature data in the processing device 520. Therefore, the technical problems that potential safety hazards cannot be found timely sometimes and power grid accidents are easy to happen due to different qualities of routing inspection workers are solved. The technical effects of reducing the inspection difficulty and improving the safety of inspection workers are achieved.
Referring to fig. 3, in an embodiment of the present application, in a power distribution network detection apparatus 10, the operation and inspection terminal 400 is wirelessly connected to the high-voltage data acquisition device 100, where the high-voltage data acquisition device 100 includes: a first current collection device 110 and an electric field collection device 120.
The first current collecting device 110 is wirelessly connected to the operation and inspection terminal 400, and is configured to collect current data of a high-voltage terminal and send the current data to the operation and inspection terminal 400. The first current collecting device 110 may adopt a current transformer, and one or more first current collecting devices 110 may be provided. For example, the number of the first current collecting devices 110 may be three, and three first current collecting devices 110 may be respectively disposed on A, B, C three-phase lines of the incoming line end of the transformer. The three first current collecting devices 110 can respectively detect currents of the A, B, C three-phase lines, so that monitoring points for the transformer are increased, monitoring strength for the transformer is stronger, and monitoring data are more accurate. In a specific embodiment, the first current collecting device 110 and the operation and inspection terminal 400 may be connected in a Sub-GHz wireless communication mode, and the Sub-GHz wireless communication has a small frequency band and low power consumption, and is suitable for long-distance transmission between the power converter and the operation and inspection terminal 400.
The electric field collecting device 120 is wirelessly connected to the operation and inspection terminal 400, and is configured to collect ground electric field data of the high-voltage terminal. The electric field collecting device 120 may adopt an electric field transformer, and one or more electric field collecting devices 120 may be provided. For example, the number of the electric field collecting devices 120 may be three, and the three electric field collecting devices 120 may be respectively disposed around the A, B, C three-phase lines at the incoming line end of the transformer, or directly connected to the A, B, C three-phase lines at the incoming line end of the transformer. The three electric field collecting devices 120 can respectively detect the electric field intensity change around the A, B, C three-phase line at the incoming line end of the transformer, so as to collect the grounding electric field data of the high-voltage end, thereby increasing the monitoring points for the transformer, so that the monitoring strength for the transformer is stronger, and the monitoring data is more accurate. In a specific embodiment, the electric field collecting device 120 and the operation and inspection terminal 400 may be connected in a Sub-GHz wireless communication mode, and the Sub-GHz wireless communication frequency band is small, and the power consumption is low, so that the electric field collecting device is suitable for long-distance transmission between the power converter and the operation and inspection terminal 400.
Referring to fig. 4, in one embodiment, the low voltage data collection device 200 includes: a second current collection device 210 and a voltage collection device 220. The operation and inspection terminal 400 and the low-voltage data acquisition device 200 may be connected by wire or wirelessly.
The low voltage end may be: the main switch, each branch switch and each branch circuit of distribution room etc.. The number of the second current collecting devices 210 may be one or more. The second current collecting device 210 is in communication connection with the operation and inspection terminal 400, and is used for collecting current data of a low-voltage end. The second current collecting device 210 may employ a current transformer, an ammeter, or the like. For example, the current transformer or the ammeter may be disposed at a main switch of the power distribution room, so that current data of the main switch in the power distribution room may be collected. The current transformer is arranged on each branch line, so that the current in each branch line can be collected. The second current collecting device 210 and the operation terminal 400 may be wirelessly connected or may be connected by a wire, for example: and the electric connection is carried out, or RS-485 communication mode can be adopted for connection. The RS-485 communication supports one-to-many communication, the operation and inspection terminal 400 can be connected with a plurality of second current acquisition devices 210, and the conversion interface of the RS-485 communication is low in cost and suitable for large-area arrangement.
The voltage acquisition device 220 is in communication connection with the operation and inspection terminal 400, and is used for acquiring voltage data of a low-voltage end. The voltage collecting device 220 may adopt a voltage transformer, a voltmeter, or the like. For example, the voltage transformer or the voltmeter may be disposed at a main switch of the power distribution room, so as to collect voltage data at the main switch in the power distribution room, and the voltage transformer or the voltmeter may be disposed at a switch of each branch line, so as to collect voltages collected by each branch line. The voltage acquisition device 220 and the operation and inspection terminal 400 may be wirelessly connected, or may be connected by wire, for example, directly electrically connected or connected by RS-485 communication. The RS-485 communication supports one-to-many communication, and can support the operation and inspection terminal 400 to connect with a plurality of voltage acquisition devices 220. And the conversion interface of the RS-485 communication has low cost and is suitable for large-area arrangement.
In one embodiment, there may be one or more temperature acquisition devices 300. The temperature acquisition device 300 and the operation and inspection terminal 400 may be wirelessly connected or may be in wired connection. For example, the temperature acquisition device 300 and the operation and inspection terminal 400 may be connected by RS-485 communication. The RS-485 communication supports one-to-many communication, and can support the operation and inspection terminal 400 to be connected with a plurality of temperature acquisition devices 300. And the conversion interface of the RS-485 communication has low cost and is suitable for large-area arrangement.
Referring to fig. 5, in an embodiment, the power distribution network detection apparatus 10 further includes a concentrator 600.
The concentrator 600 is in communication connection with the operation and inspection terminal 400 and is used for collecting user-side electric energy data, and the operation and inspection terminal 400 is used for receiving the user-side electric energy data and sending the user-side electric energy data to the monitoring master station 500. The concentrator 600 and the operation and inspection terminal 400 may be connected by wire or wirelessly. If a wired connection is adopted, the concentrator 600 may be directly electrically connected to the operation inspection terminal 400. Alternatively, the concentrator 600 and the operation and inspection terminal 400 may be in communication connection through RS-485. The RS-485 communication supports one-to-many communication, and can support the operation inspection terminal 400 to connect with a plurality of concentrators 600. And the conversion interface of the RS-485 communication has low cost and is suitable for large-area arrangement. The concentrator 600 in this embodiment may adopt DJGZ33-WFET1600, may also adopt CL818C, and both have RS-485 communication interfaces, so as to implement one-to-many communication. In this embodiment, the concentrator 600 is not specifically limited, and only the functions of collecting and transmitting the user-side electric energy data need to be achieved.
Referring to fig. 6, in an embodiment, the concentrator 600 is communicatively connected to the monitoring master station 500, and is configured to collect the power data of the user terminal and transmit the power data to the monitoring master station 500. The concentrator 600 has a transparent forwarding function, supports transparent tasks, and can directly collect the power data of the user side and send the power data to the monitoring master station 500. The monitoring master station 500 automatically analyzes the power data of the user terminal. The transparent forwarding function may be implemented by hardware, software, or a combination of software and hardware. Meanwhile, the concentrator 600 has a cascade debug port, and the concentrator 600 and the operation and inspection terminal 400 are connected through the cascade debug port, so that the concentrator 600 supports a cascade debug function. That is, the monitoring master station 500 may issue a command to the concentrator 600 through the operation and detection terminal 400, and the monitoring master station 500 may directly extract the user-side power data from the concentrator 600. In a specific embodiment, the concentrator 600 and the monitoring master station 500 may be directly connected by a wire, for example: and RS-485 communication connection.
Referring to fig. 7, in an embodiment, the power distribution network detection apparatus 10 further includes an alarm device 700. The alarm device 700 is in communication connection with the temperature acquisition device 300 and is configured to send an alarm signal when the temperature data of the temperature acquisition device 300 exceeds a preset threshold. The alarm device 700 and the temperature collecting device 300 may be connected by wire or wirelessly. The alarm device 700 may be an alarm or an alarm circuit. The alarm signal can be a light signal or a sound signal lamp. The preset threshold in this embodiment may be specifically set according to actual conditions. The alarm device 700 is not specifically limited in this embodiment, and may be specifically set according to actual conditions, and only needs to satisfy the function of sending an alarm signal when the temperature data of the temperature acquisition device 300 exceeds a preset threshold.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. A power distribution network detection device, comprising:
the high-voltage data acquisition equipment (100) is used for acquiring high-voltage end data in a power distribution network;
the low-voltage data acquisition equipment (200) is used for acquiring low-voltage end data in the power distribution network;
the temperature acquisition equipment (300) is used for acquiring temperature data in the power distribution network;
the operation and inspection terminal (400) is respectively in communication connection with the high-voltage data acquisition equipment (100), the low-voltage data acquisition equipment (200) and the temperature acquisition equipment (300), and the operation and inspection terminal (400) is used for receiving the high-voltage end data, the low-voltage end data and the temperature data;
a monitoring master station (500) comprising:
the receiving equipment (510) is in communication connection with the operation and inspection terminal (400) and is used for receiving the high-voltage end data, the low-voltage end data and the temperature data;
the processing device (520) is in signal connection with the receiving device (510) and is used for determining the operation state of the power distribution network according to the high-voltage end data, the low-voltage end data and the temperature data.
2. The power distribution network detection apparatus according to claim 1, wherein the high voltage data collection device (100) comprises:
the first current acquisition equipment (110) is in communication connection with the operation and inspection terminal (400) and is used for acquiring current data of a high-voltage end;
and the electric field acquisition equipment (120) is in communication connection with the operation and detection terminal (400) and is used for acquiring the grounding electric field data of the high-voltage end.
3. The power distribution network detection apparatus according to claim 1, wherein the low voltage data collection device (200) comprises:
the second current acquisition equipment (210) is in communication connection with the operation and inspection terminal (400) and is used for acquiring current data of a low-voltage end;
and the voltage acquisition equipment (220) is in communication connection with the operation and detection terminal (400) and is used for acquiring voltage data of a low-voltage end.
4. The power distribution network detection device of claim 1, further comprising:
the concentrator (600) is in communication connection with the operation and inspection terminal (400) and is used for collecting electric energy data of a user side;
the operation and detection terminal (400) is used for receiving the user side electric energy data and sending the user side electric energy data to the monitoring main station (500).
5. The power distribution network detection apparatus according to claim 4, wherein the concentrator (600) is communicatively connected to the monitoring master station (500) and configured to collect the power data of the user terminal and transmit the power data to the monitoring master station (500).
6. The power distribution network detection apparatus according to claim 1, wherein the operation and inspection terminal (400) is wirelessly connected with the high voltage data acquisition device (100); the operation and inspection terminal (400) is respectively in wired connection with the low-voltage data acquisition equipment (200) and the temperature acquisition equipment (300).
7. The power distribution network detection apparatus according to claim 5, wherein the operation and inspection terminal (400) is wirelessly connected with the monitoring master station (500); the concentrator (600) is wirelessly connected with the monitoring master station (500).
8. The power distribution network detection device of claim 1, further comprising:
the alarm device (700) is in communication connection with the temperature acquisition device (300) and is used for sending out an alarm signal when the temperature data of the temperature acquisition device (300) exceeds a preset threshold value.
9. The power distribution network detection apparatus according to claim 3, wherein the number of the first current collecting devices (110) is plural, and each first current collecting device (110) is used for detecting each current data of a high-voltage end;
the number of the second current collection devices (210) is multiple, and each second current collection device (210) is used for detecting each current data of the low-voltage end.
10. The power distribution network detection apparatus according to claim 1, wherein the number of the temperature collection devices (300) is plural, and the temperature collection devices are respectively used for collecting temperature data of different devices in the power distribution network.
CN201911135837.6A 2019-11-19 2019-11-19 Power distribution network detection device Pending CN111077405A (en)

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