CN207992368U - Cable termination intelligent monitoring device - Google Patents

Abstract

The utility model provides an intelligent monitoring device for a cable terminal, which transmits the monitoring data of the cable terminal to the server of the power bureau in real time through a 4G communication network, including: a temperature sensor and a short-circuit current sensor installed on the cable terminal line; the short-circuit current sensor Connected to the temperature sensor through a data line; a ground fault sensor installed on the grounding line of the cable terminal; a host computer connected to the short-circuit current sensor through multiple groups of optical fiber lines; the ground fault sensor is connected to the ground fault sensor through a separate optical fiber line The host is connected; the signal transmitting antenna connected with the host. It can monitor the operation status of the line in real time, discover potential faults on the line in advance and give an early warning, so as to prevent electrical accidents, thereby ensuring the normal operation of the distribution network system and increasing user satisfaction.

Description

An intelligent monitoring device for cable terminals

technical field

The utility model relates to the field of electric power transmission line maintenance, in particular to an intelligent monitoring device for cable terminals.

Background technique

With the advancement of urbanization, the use of power distribution cabinets is becoming more and more popular. During the operation of the power distribution cabinet, although there are inspectors to inspect the line, irregular and unpredictable electrical accidents will still occur at the cable terminal position, which will affect the normal operation of the distribution network system. Before an accident occurs at the cable terminal, local heating will occur due to a surge in current or loose coordination, which will cause the temperature of the cable terminal to rise. Therefore, the real-time operating temperature and current can be detected to reflect the operating status of the line. If an early warning can be given before the accident occurs, Preventing problems before they happen is particularly important for the stability of the power system.

Utility model content

The technical problem to be solved by the utility model is to provide an intelligent monitoring device for a cable terminal, which can monitor the operation of the cable terminal anytime and anywhere and feed back real-time data to the control center.

In order to solve the above technical problems, the utility model provides a cable terminal intelligent monitoring device, which transmits the monitoring data of the cable terminal to the server of the power bureau in real time through the 4G communication network, including:

Temperature sensor and short-circuit current sensor installed on the cable terminal line;

The short-circuit current sensor is connected with the temperature sensor through a data line;

Ground fault sensor installed on the ground line of the cable terminal;

A host connected to the short-circuit current sensor through multiple sets of optical fiber lines;

The ground fault sensor is connected to the host through a separate fiber optic cable;

A signal transmitting antenna connected to the host.

In an optional embodiment, the cable terminal circuit is a cable terminal three-phase circuit.

In an optional embodiment, there are three temperature sensors, which are respectively installed on phase A, phase B and phase C of the three-phase circuit of the cable terminal.

In an optional embodiment, there are three short-circuit current sensors, which are respectively installed on the A phase, B phase and C phase of the three-phase circuit of the cable terminal, and are connected to the A phase, B phase and C phase separately. corresponding to the temperature sensor.

In an optional embodiment, the short-circuit current sensors are individually connected to the host through respective corresponding optical fiber lines, and transmit actual operating temperature data and current data monitored on respective phase lines.

In an optional embodiment, the host is installed inside the cable terminal.

In an optional embodiment, the cable terminal is a power distribution cabinet.

In an optional embodiment, the host has the functions of value setting, data display, logic analysis, signal conversion and transmission, 4G communication and alarm.

In an optional embodiment, the signal transmitting antenna is placed outside the cable terminal.

In an optional embodiment, the cable terminal intelligent monitoring device exchanges information with the server of the power bureau through a wireless encrypted network.

In an optional embodiment, the data information transmitted by the cable terminal intelligent monitoring device is stored and analyzed by the server, and at the same time, the necessary information and alarm information are sent to the maintenance personnel in the power system through the wireless encrypted network The mobile phone terminal and the client terminal in the power consumption system.

The beneficial effect of the embodiment of the utility model is that: through the real-time monitoring of the operation status of the line through the 4G wireless encryption network, hidden troubles on the line can be found in advance and given early warning, thereby preventing electrical accidents from occurring, thereby ensuring the normal operation of the distribution network system, Increased user satisfaction.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is a schematic diagram of the structure of an embodiment of a cable terminal intelligent monitoring device of the present invention.

Detailed ways

The descriptions of the following embodiments are with reference to the accompanying drawings to illustrate the specific embodiments that the present utility model can be used to implement.

The utility model provides an intelligent monitoring device for a cable terminal, which transmits the monitoring data of the cable terminal to the server of the power bureau in real time through a 4G communication network. Its architecture is shown in Figure 1, including:

Temperature sensors 11, 21, 31 and short-circuit current sensors 12, 22, 32 installed on the cable terminal line;

Each short-circuit current sensor is connected with its corresponding temperature sensor through a data line;

A ground fault sensor 41 installed on the cable terminal grounding line;

Each short-circuit current sensor and ground fault sensor is connected to the host 1 through a separate fiber optic cable;

The host 1 is connected with a signal transmitting antenna 2 .

As an example, this embodiment describes how the intelligent monitoring device works by monitoring a cable terminal such as a power distribution cabinet.

A host 1 is installed inside the power distribution cabinet 0, and the host has multiple functions, such as value setting, data display, logic analysis, signal conversion and transmission, 4G communication, and alarm functions.

A signal transmitting antenna 2 is installed on the top surface of the outside of the power distribution cabinet 0, and the signal transmitting antenna 2 is connected to the host computer 1. Through the signal transmitting antenna 2, the cable terminal intelligent monitoring device and the power bureau server 3 can be wirelessly connected. Information exchange within the encrypted network.

A temperature sensor 11 and a short-circuit current sensor 12 are installed on phase A of the three-phase AC circuit inside the power distribution cabinet 0, the temperature sensor 11 and the short-circuit current sensor 12 are connected through a data line, and the temperature TA measured by the temperature sensor 11 is transmitted to the The short-circuit current sensor 12, the current IA measured by the short-circuit current sensor 12 and the temperature TA measured by the temperature sensor 11 are transmitted to the host computer 1 through the optical fiber line 13; a temperature sensor 21 is installed on the B phase of the three-phase AC circuit inside the power distribution cabinet 0 With short-circuit current sensor 22, temperature sensor 21 is connected with short-circuit current sensor 22 by data line, and the temperature TB that temperature sensor 21 measures is transmitted to short-circuit current sensor 22 by data line, and the electric current IB that short-circuit current sensor 22 measures and temperature sensor 21 The measured temperature TB is transmitted to the host computer 1 through the optical fiber line 23; a temperature sensor 31 and a short-circuit current sensor 32 are installed on the C-phase of the three-phase AC circuit inside the power distribution cabinet 0, and the temperature sensor 31 and the short-circuit current sensor 32 are connected by a data line The temperature TC measured by the temperature sensor 31 is transmitted to the short-circuit current sensor 32 through the data line, and the current IC measured by the short-circuit current sensor 32 and the temperature TC measured by the temperature sensor 31 are transmitted to the host computer 1 through the optical fiber 33. In this embodiment, the three temperature sensors use the same model, and the measured temperature values TA, TB, and TC are the actual operating temperatures in the A, B, and C phase lines respectively, and the three short-circuit current sensors also use the same model ; Of course, in other optional embodiments, the temperature sensor can be selected from different types of sensors according to requirements, and the short-circuit current sensor can also be selected from different types of sensors.

A ground fault sensor 41 is installed at the ground end of the three-phase AC circuit inside the power distribution cabinet 0 . The ground fault sensor 41 can monitor whether the ground is good, and transmit the ground signal F to the host 1 through the optical fiber 43 .

The host 1 transmits the TA, TB, TC, IA, IB, IC values and signal F received in real time to the power bureau server 3 through the antenna 2 in the 4G wireless encryption network, and simultaneously receives the incoming signals and data from the power bureau server 3 . The preset reference value of temperature and current on each phase can be set on both host 1 and server 3. When the temperature or current of a certain phase is found to be abnormal relative to the preset reference value, server 3 will send the abnormal information Give the mobile phone terminal 4 and client 5 of the operation and maintenance personnel, notify the operation and maintenance personnel to start the operation and maintenance work and ask the electricity customers to take corresponding countermeasures; at the same time, the host 1 will send out an alarm so that the nearby personnel can take emergency treatment; if an abnormal grounding is found , it will also send out abnormal information and alarm through the above communication methods. The actual temperature value of each phase can also be displayed in real time on the host 1, so as to observe the actual operation status of the power distribution cabinet.

Of course, in other optional embodiments, the cable terminal intelligent monitoring device can also be installed on other cable terminals for monitoring the operation status of its internal lines. The connection method is the same as that described above, and will not be repeated here.

From the above description, it can be seen that the beneficial effect of the embodiment of the present invention is that the operation status of the line can be monitored in real time through the 4G wireless encryption network, and hidden troubles on the line can be found in advance and given early warning, thereby preventing electrical accidents from occurring, thereby ensuring the distribution network The normal operation of the system increases user satisfaction.

What is disclosed above is only a preferred embodiment of the utility model, and of course it cannot limit the scope of rights of the utility model. Therefore, equivalent changes made according to the claims of the utility model still fall within the scope of the utility model.

Claims (7)

1. a kind of cable termination intelligent monitoring device, pass through the monitoring data of 4G communication network real-time Transmission cable terminations to electric power The server of office, which is characterized in that including：

The temperature sensor and short circuit current sensor being installed on cable termination circuit, the cable termination circuit are that cable is whole Hold three-phase circuit；The temperature sensor totally three is respectively arranged in the A phases, B phases and C of the cable termination three-phase circuit Xiang Shang；The short circuit current sensor totally three is respectively arranged in the A phases, B phases and C phases of the cable termination three-phase circuit On, and individually connect the corresponding temperature sensor in the A phases, B phases and C phases；

The short circuit current sensor is connect by data line with the temperature sensor；

The ground fault sensor being installed on cable termination ground path；

The host being connect with the short circuit current sensor by multigroup optical fiber cable；

The ground fault sensor is connected by individual optical fiber cable with the host；

The signal transmitting antenna being connect with the host.

2. cable termination intelligent monitoring device according to claim 1, which is characterized in that the short circuit current sensor is logical It crosses corresponding optical fiber cable to be individually connected with the host, and transmits the actual motion temperature monitored on respective phase route Degrees of data and current data.

3. cable termination intelligent monitoring device according to claim 1, which is characterized in that the host is installed on the electricity Cable terminal inner.

4. cable termination intelligent monitoring device according to claim 2, which is characterized in that the cable termination is distribution Cabinet.

5. cable termination intelligent monitoring device according to claim 1, which is characterized in that the host has numerical value and sets Fixed, data shows, logic analysis, signal conversion with emit, 4G is communicated and warning function；The signal transmitting antenna is placed in institute State the outside of cable termination.

6. the cable termination intelligent monitoring device according to any one of claim 1-5, which is characterized in that the cable The server transinformation that terminal intelligent monitoring device passes through wireless encryption network and power office.

7. cable termination intelligent monitoring device according to claim 1, which is characterized in that the cable termination intellectual monitoring While the data information that device transmits out is stored via the server, analyzed, necessary information and warning message are led to It crosses wireless encryption network and is sent to client in electric system in the mobile phone terminal and electricity system of maintenance personnel.